Wallenstein GX620 Operator's Manual
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GX620, GX720, GX920
& GX920 XT SERIES
OPERATOR'S MANUAL
BY EMB MFG INC.
GX920
Effective on products retailed on or after January 1, 2011.
Register your product online at www.embmfg.com within 30 days of purchase to activate warranty.
This product is warranted to be free of defects in materials and workmanship under normal use and service, for a period of
from the date of purchase, when operated and maintained in accordance with the Operating and Maintenance Instructions
supplied with this unit. Warranty is limited to the repair of the product and/or replacement of parts.
This warranty does not cover the following items:
1) Machines or parts lost or damaged during shipment,
2) Normal maintenance or adjustments after initial pre-service and set up is completed
3) Normal replacement of service items.
4) Accessory items / parts not supplied by EMB MFG INC.
5) Damages resulting from:
•
misuse, negligence, accident, theft or fire
•
use of improper or insufficient fuel, fluids or lubricants
•
use of parts or after market accessories other than genuine EMB MFG INC. parts
•
modifications, alteration, tampering or improper repair performed by parties other than an authorized dealer
•
any device or accessories installed by parties other than an authorized EMB dealer or distributor
Engines are covered by the manufacturer of the engine and covered by the warranty period specified by that manufacturer.
Engine warranty must be registered at the engine manufactures website. For service contact your local engine dealer.
Under no circumstances will the manufacturer be liable for any consequential damage or expense of any kind, including loss
of profits. The manufacturer is under no circumstances liable for tow vehicle of any kind. The manufacturer is not liable for
the maintenance of the product.
This warranty is extended only to the original purchaser and is not transferable. Warranty is void if repairs are attempted by
anyone other than a Wallenstein Authorized Service Centre.
If a difficulty develops with the product, contact the local dealer from which you purchased the unit. Only Wallenstein author-
ized dealers are authorized to make repairs to the product or affect the replacement of defective parts, which will be done at
no charge within a reasonable time after the receipt of the product. Unit or parts shall be returned at the customer’s expense
to the Authorized Service Centre. Damage in transit is not covered by warranty. Include the original purchase receipt with
any claim (keep a copy of the receipt for your files).
The distributor’s liability under warranty is limited to the repair of the product and/or replacement of parts and is given to the
purchaser in lieu of all other remedies including incidental and consequential charges. There are no warranties, expressed
or implied, other than those specified herein.
EMB MFG Inc
4144 Boomer Line, St Clements, ON N0B 2M0 Canada
Phone: 519-699-9283 Fax: 519-699-4146 : attention to Warranty Dept
Email: [email protected]
WARRANTY IS VOID IF NOT REGISTERED
Three (3) Years for Consumer
One (1) Year for Commercial/Rental
rev.201011
____ All Decals Installed
____ Refl ectors Clean
____ Guards and Shields Installed
____ Review Operating and Safety Instructions
____ Fasteners Tight
____ Check Oil Level in Resevoir (If so Equipped)
____ Hydraulic Fittings Tight - No Leaks
____ Hydraulic Lines Free and in Good Condition
____ Hydraulic Controls Move Freely
____ Lubricate Machine
WALLENSTEIN
BACKHOE ATTACHMENT
INSPECTION REPORT
Date Dealer’s Rep. Signature
Date Owner's Signature
The above equipment and Operator’s Manual have been received by me and I have been thoroughly
instructed as to care, adjustments, safe operation and applicable warranty policy.
This form must be fi lled out by the dealer and signed by both the dealer and the customer at the time of deliv-
ery.
Customer’s Name
Dealer Name
Address
Address
City, State/Province, Code
City, State/Province, Code
Phone Number ( )
Phone Number ( )
Contact Name
Model
Serial Number
Delivery Date
I have thoroughly instructed the buyer on the above described equipment which review included the Op-
erator’s Manual content, equipment care, adjustments, safe operation and applicable warranty policy.
DEALER INSPECTION REPORT
SAFETY
To activate waranty, register your product online at www.embmfg.com
SERIAL NUMBER LOCATION
Always give your dealer the serial number of your Wallenstein Backhoe Attachment when ordering parts
or requesting service or other information.
The machine is equipped with a serial plate where indicated. Please mark the number in the space pro-
vided for easy reference.
SERIAL NUMBER LOCATION
Model Number ____________________________________________________
Serial Number ____________________________________________________
GX920
GX620
TABLE OF CONTENTS
SECTION
DESCRIPTION
PAGE
1
Introduction ......................................................... 1
2
Safety ................................................................... 2
2.1
General Safety ..................................................... 3
2.2
Equipment Safety Guidelines .............................. 4
2.3
Safety Training ..................................................... 5
2.4
Safety Signs ......................................................... 5
2.5
Preparation .......................................................... 6
2.6
Operating Safety .................................................. 6
2.7
Transport Safety .................................................. 8
2.8
Storage Safety ..................................................... 8
2.9
Maintenance Safety ............................................. 8
2.10
Hydraulic Safety ................................................... 9
2.11
Employee Sign-Off Form ................................... 10
3
Safety Sign Locations ........................................ 11
3.1
Three Panel Safety Signs .................................. 11
3.2
Two Panel Safety Signs ..................................... 13
4
Operation ........................................................... 15
4.1
To the New Operator or Owner .......................... 15
4.2
Machine Components ........................................ 16
4.3
Machine Break-In ............................................... 17
4.4
Pre-Operation Checklist ..................................... 17
4.5
Equipment Matching .......................................... 18
4.6
Controls ............................................................. 19
4.7
Machine Preparation and Assembly .................. 21
4.8
Attaching / Unhooking ........................................ 27
4.9
Field Operation .................................................. 39
4.10
Transporting ....................................................... 50
4.11
Storage Safety ................................................... 52
5
Service and Maintenance .................................. 54
5.1
Service ............................................................... 54
5.2
Maintenance ...................................................... 61
6
Troubleshooting ................................................. 62
7
Specifi cations ..................................................... 63
7.1
Mechanical ......................................................... 63
7.2
Bolt Torque ......................................................... 64
7.3
Hydraulic Fitting Torque ..................................... 65
7.4
Hydraulic Fluid - MSDS ..................................... 66
8
Index .................................................................. 70
Congratulations on your choice of an Wallenstein Backhoe to compliment your operation. This equipment
has been designed and manufactured to meet the needs of a discerning digging, excavating or trenching
industry.
Safe, effi cient and trouble free operation of your Wallenstein Backhoe requires that you and anyone else
who will be operating or maintaining the machine, read and understand the Safety, Operation, Maintenance
and Trouble Shooting information contained within the Operator's Manual.
This manual covers the Models GX620, GX720, GX920 and GX920XT manufactured by Wallenstein. Use
the Table of Contents or Index as a guide to locate required information.
Keep this manual handy for frequent reference and to pass on to new operators or owners. Call your
Wallenstein dealer or the Distributer if you need assistance, information or additional copies of the manu-
als.
OPERATOR ORIENTATION - The directions left, right, front and rear, as mentioned throughout this manual,
are determined when sitting in the operator's seat and facing toward the boom.
SAFETY ALERT SYMBOL
Why is SAFETY important to you?
The Safety Alert symbol identifi es
important safety messages on the
Wallenstein Backhoe Attachment
and in the manual. When you see
this symbol, be alert to the possibility
of personal injury or death. Follow
the instructions in the safety mes-
sage.
This Safety Alert symbol means
ATTENTION! BECOME ALERT!
YOUR SAFETY IS INVOLVED!
Accidents Disable and Kill
Accidents Cost
Accidents Can Be Avoided
3 Big Reasons
If you have any questions not answered in this manual or require additional copies or the manual is dam-
aged, please contact your dealer or Wallenstein, 4144 Boomer Line, St. Clements, ON, N0B 2M0. Phone
(519) 699-9283 or Fax (519) 699-4146.
DANGER - Indicates an imminently hazardous
situation that, if not avoided, will
result in death or serious injury. This
signal word is to be limited to the
most extreme situations typically for
machine components which, for func-
tional purposes, cannot be guarded.
WARNING - Indicates a potentially hazardous
situation that, if not avoided, could
result in death or serious injury, and
includes hazards that are exposed
when guards are removed. It may
also be used to alert against unsafe
practices.
CAUTION - Indicates a potentially hazardous
situation that, if not avoided, may
result in minor or moderate injury. It
may also be used to alert against
unsafe practices.
SIGNAL WORDS:
Note the use of the signal words DANGER,
WARNING and CAUTION with the safety
messages. The appropriate signal word for
each message has been selected using the
following guide-lines:
YOU are responsible for the SAFE operation and
maintenance of your Wallenstein Backhoe Attach-
ment. YOU must ensure that you and anyone
else who is going to use, maintain or work around
the Backhoe be familiar with the using and main-
tenance procedures and related SAFETY informa-
tion contained in this manual. This manual will
take you step-by-step through your working day
and alerts you to all good safety practices that
should be used while using the Backhoe.
Remember, YOU are the key to safety. Good
safety practices not only protect you but also the
people around you. Make these practices a work-
ing part of your safety program. Be certain that
EVERYONE using this equipment is familiar with
the recommended using and maintenance proce-
dures and follows all the safety precautions. Most
accidents can be prevented. Do not risk injury or
death by ignoring good safety practices.
•
Backhoe Attachment owners must give oper-
ating instructions to operators or employees
before allowing them to operate the machine,
and at least annually thereafter.
•
The most important safety device on this
equipment is a SAFE operator. It is the op-
erator’s responsibility to read and understand
ALL Safety and Operating instructions in the
manual and to follow these. Most accidents
can be avoided.
•
A person who has not read and understood all
using and safety instructions is not qualifi ed
to use the machine. An untrained operator
exposes himself and bystanders to possible
serious injury or death.
•
Do not modify the equipment in any way.
Unauthorized modifi cation may impair the
function and/or safety and could affect the life
of the equipment.
•
Think SAFETY! Work SAFELY!
1. Read and understand the
Operator’s Manual and all
safety signs before operat-
ing, maintaining, adjusting or
servicing the Backhoe.
2.1 GENERAL SAFETY
2. Have a fi rst-aid kit available
for use should the need
arise and know how to use
it.
3. Have a fi re extinguisher
available for use should the
need arise and know how to
use it.
4. Do not allow riders.
5. Wear appropriate
protective gear. This
list includes but is not
limited to:
-
A hard hat
-
Protective
shoes with slip
resistant soles
-
Protective glasses,
goggles or face shield
-
Heavy gloves
-
Wet weather gear
-
Hearing Protection
-
Respirator or fi lter mask
6. Install and secure all guards
before starting.
7. Wear suitable ear protection
for prolonged exposure to
excessive noise.
8. Lower boom and bucket, place
all controls in neutral, stop engine, remove
ignition key and wait for all moving parts to
stop before servicing, adjusting, repairing or
maintaining.
9. Clear the area of people, especially small
children, before using the unit.
10. Review safety related items annually.
2.2 EQUIPMENT SAFETY GUIDELINES
1. Safety of the operator and bystanders is one
of the main concerns in designing and de-
veloping equipment. However, every year
many accidents occur which could have been
avoided by a few seconds of thought and a
more careful approach to handling equipment.
You, the operator, can avoid many accidents
by observing the following precautions in this
section. To avoid personal injury or death,
study the following precautions and insist
those working with you, or for you, follow
them.
2. In order to provide a better view, certain
photographs or illustrations in this manual
may show an assembly with a safety shield
removed. However, equipment should never
be used in this condition. Keep all shields in
place. If shield removal becomes necessary
for repairs, replace the shield prior to use.
3. Replace any safety sign or instruction sign
that is not readable or is missing. Location of
such safety signs is indicated in this manual.
4. Never use alcoholic beverages or drugs which
can hinder alertness or coordination while us-
ing this equipment. Consult your doctor about
using this machine while taking prescription
medications.
5. Under no circumstances should young
children be allowed to work with this
equipment. Do not allow persons to use or
assemble this unit until they have read this
manual and have developed a thorough
understanding of the safety precautions
and of how it works. Review the safety
instructions with all users annually.
6. This equipment is dangerous to children and
persons unfamiliar with its operation. The
operator should be a responsible, properly
trained and physically able person familiar
with machinery and trained in this equipment's
operations. If the elderly are assisting with
work, their physical limitations need to be
recognized and accommodated.
7. Never exceed the limits of a piece of machin-
ery. If its ability to do a job, or to do so safely,
is in question - DON'T TRY IT.
8. Do not modify the equipment in any way. Un-
authorized modifi cation may result in serious
injury or death and may impair the function
and life of the equipment.
9. In addition to the design and confi guration of
this implement, including Safety Signs and
Safety Equipment, hazard control and ac-
cident prevention are dependent upon the
awareness, concern, prudence, and proper
training of personnel involved in the operation,
transport, maintenance, and storage of the
machine. Refer also to Safety Messages and
operation instruction in each of the appropri-
ate sections of the engine and machine manu-
als. Pay close attention to the Safety Signs
affi xed to the tractor and the machine.
2.3 SAFETY TRAINING
1. Safety is a primary concern in the design and
manufacture of our products. Unfortunately,
our efforts to provide safe equipment can
be wiped out by a single careless act of an
operator or bystander.
2. In addition to the design and confi guration of
equipment, hazard control and accident pre-
vention are dependent upon the awareness,
concern, prudence and proper training of
personnel involved in the operation, transport,
maintenance and storage of this equipment.
3. It has been said, "The
best safety feature is an
informed, careful opera-
tor." We ask you to be that
kind of an operator. It is the
operator's responsibility to read and under-
stand ALL Safety and Using instructions in the
manual and to follow these. Accidents can be
avoided.
4. Working with unfamiliar equipment can lead
to careless injuries. Read this manual before
assembly or using, to acquaint yourself with
the machine. If this machine is used by any
person other than yourself, or is loaned or
rented, it is the machine owner's responsibil-
ity to make certain that the operator, prior to
using:
a. Reads and understands the operator's
manuals.
b. Is instructed in safe and proper use.
5. Know your controls and how to stop power
unit engine and machine quickly in an emer-
gency. Read this manual and the one pro-
vided with your engine.
6. Train all new personnel and review instruc-
tions frequently with existing workers. Be
certain only a properly trained and physically
able person will use the machinery. A person
who has not read and understood all using
and safety instructions is not qualifi ed to use
the machine. An untrained operator exposes
himself and bystanders to possible serious in-
jury or death. If the elderly are assisting with
the work, their physical limitations need to be
recognized and accommodated.
2.4 SAFETY SIGNS
1. Keep safety signs clean and legible at all
times.
2. Replace safety signs that are missing or have
become illegible.
3. Replaced parts that displayed a safety sign
should also display the current sign.
4. Safety signs displayed in Section 3 each have
a part number in the lower right hand corner.
Use this part number when ordering replace-
ment parts.
5. Safety signs are available from your author-
ized Distributor or Dealer Parts Department or
the factory.
How to Install Safety Signs:
•
Be sure that the installation area is clean and
dry.
•
Be sure temperature is above 50°F (10°C).
•
Determine exact position before you remove
the backing paper.
•
Remove the smallest portion of the split back-
ing paper.
•
Align the sign over the specifi ed area and
carefully press the small portion with the ex-
posed sticky backing in place.
•
Slowly peel back the remaining paper and
carefully smooth the remaining portion of the
sign in place.
•
Small air pockets can be pierced with a pin
and smoothed out using the piece of sign
backing paper.
1. Never use the engine and machine until you
have read and completely understand this
manual, the Tractor Operator's Manual and
each of the Safety Messages found on the
safety signs on the tractor and machine.
2. Personal pro-
tection equip-
ment including
hard hat, safety
glasses, safety
shoes, and
gloves are rec-
ommended dur-
ing assembly,
installation, operation, adjustment, maintain-
ing, repairing, removal, cleaning, or moving
the unit. Do not allow long hair, loose fi tting
clothing or jewelery to be around equipment.
3. PROLONGED EXPOSURE
TO LOUD NOISE MAY
CAUSE PERMANENT
HEARING LOSS!
Power equipment with or
without equipment attached
can often be noisy enough
to cause permanent, partial
hearing loss. We recommend that you wear
hearing protection on a full-time basis if the
noise in the Operator's position exceeds 80db.
Noise over 85db on a long-term basis can
cause severe hearing loss. Noise over 90db
adjacent to the Operator over a long-term ba-
sis may cause permanent, total hearing loss.
NOTE: Hearing loss from loud noise (from
tractors, chain saws, radios, and other such
sources close to the ear) is cumulative over a
lifetime without hope of natural recovery.
4. Operate the machine only
with a tractor equipped
with an approved Roll-
Over-Protective Structure
(ROPS). Always wear
your seat belt when oper-
ating the tractor. Serious
injury or even death could
result from falling off the
tractor - - particularly during a turnover when
the operator could be pinned under the ROPS
or the tractor.
5. Review maps of underground utilities before
starting to dig. Remove all sticks, stones,
roots, and wires from working area before
starting. Take care not to contact overhead
and underground obstructions during opera-
tion.
6. Keep boom and bucket away from overhead
and underground power lines. Electrocution
can occur without direct contact with an over-
head power line.
7. Operate only in daylight or good artifi cial light.
8. Be sure machine is properly mounted, adjust-
ed and in good operating condition.
9. Ensure that all safety shielding and safety
signs are properly installed and in good condi-
tion.
2.6 OPERATING SAFETY
1. Please remember it is important that you read
and heed the safety signs on the Backhoe.
Clean or replace all safety signs if they can-
not be clearly read and understood. They are
there for your safety, as well as the safety of
others. The safe use of this machine is strictly
up to you, the operator.
2. All things with moving parts are potentially
hazardous. There is no substitute for a cau-
tious, safe-minded operator who recognizes
potential hazards and follows reasonable
safety practices. The manufacturer has
designed this Backhoe to be used with all
its safety equipment properly attached, to
minimize the chance of accidents. Study
this manual to make sure you have all safety
equipment attached.
3. If a safety shield or guard is removed for any
reason, it must be replaced before the ma-
chine is again operated.
4. Always use the drawbar anchor bracket when
mounting a Backhoe to tractor. Adjust to pre-
vent Backhoe from moving when digging.
5. Attach the tractor side plate to reinforce the
frame if required. Do not overload the tractor
frame.
6. Do not use a "Quick Hitch" on the 3 point
hitch.
7. Review maps of underground utilities before
starting to dig. Remove all sticks, stones,
roots, and wires from working area before
starting. Take care not to contact overhead
and underground obstructions during opera-
tion.
8. Never operate controls from the ground. Op-
erate only from the operator's seat to prevent
unexpected boom movement that can lead to
crushing between frame members.
9. Do not dig under machine or stabilizers. A
cave-in could result and the machine could fall
into the excavation.
10. Lower stabilizers to the ground to support
machine befoe starting to dig.
11. Keep boom and bucket away from overhead
and underground power lines. Electrocution
can occur without direct contact with an over-
head power line.
12. Do not exceed machine lift capacity. Over-
loading can cause structural damage and lead
to unsafe operating conditions.
13. Position Backhoe so that loads extend directly
behind machine when lifting or placing heavy
objects.
14. Counter-balance backhoe with suitcase
weights or a loader to provide stability. Unbal-
anced machines can tip during operation.
15. Never carry, lift or move people on boom or
bucket.
16. Always use two people to handle heavy, un-
wieldy components during assembly, installa-
tion, removal or moving.
17. Never place any part of your body where it
would be in danger if movement should occur
during assembly, installation, operation, main-
taining, repairing, removal or moving.
18. Do not walk or work under a raised machine
or attachment unless it is securely blocked or
held in position. Do not depend on the tractor
hydraulic system to hold the machine or at-
tachment in place.
19. Never use alcoholic beverages or drugs which
can hinder alertness or coordination while
operating this equipment. Consult your doc-
tor about operating this machine while taking
prescription medications.
20. Do not allow riders on this machine at any
time. There is no safe place for any riders.
21. Before you operate the machine, check over
all hydraulic lines, hoses, connections and
components. Replace any worn or damaged
parts immediately. Tighten all leaking fi ttings.
22. Keep hands, feet, hair, jewelry, and clothing
away from all moving and/or rotating parts.
23. Review safety instructions annually.
2.9 MAINTENANCE SAFETY
1. Good maintenance is your responsibility. Poor
maintenance is an invitation to trouble.
2. Follow good shop practices.
- Keep service
area clean and
dry.
- Be sure electrical
outlets and tools
are properly
grounded.
- Use adequate
light for the job at
hand.
3. Make sure there is
plenty of ventilation. Never operate the tractor
in a closed building. The exhaust fumes may
cause asphyxiation.
4. Before working on this machine, lower the
boom / bucket to the ground, place all controls
in neutral, shut off the engine, set the park
brake and remove the ignition key.
5. Never work under equipment unless it is
blocked securely.
6. Use personal protection devices such as eye,
hand and hearing protectors, when performing
any service or maintenance work.
7. Where replacement parts are necessary for
periodic maintenance and servicing, genuine
factory replacement parts must be used to
restore your equipment to original specifi ca-
tions. The manufacturer will not be responsi-
ble for injuries or
damages caused
by use of unap-
proved parts and/
or accessories.
8. A fi re extinguisher
and fi rst aid kit
should be kept readily accessible while per-
forming maintenance on this equipment.
9. Periodically tighten all bolts, nuts and screws
and check that all fasteners are properly
torqued.
10. When completing a maintenance or service
function, make sure all safety shields and
devices are installed before placing unit in
service.
2.7 TRANSPORT SAFETY
1. Comply with state and local laws governing
safety and transporting of machinery on public
roads.
2. The use of fl ashing amber lights is accept-
able in most localities. However some locali-
ties prohibit their use. Local laws should be
checked for all highway lighting and marking
requirements.
3. At all times, when driving the tractor and
equipment on the road or highway under
20 mph (32 kph) use fl ashing amber warn-
ing lights and a slow moving vehicle (SMV)
identifi cation emblem. Do not exceed 20 mph
(32 kph). Reduce speed on rough roads and
surfaces.
4. Plan your route to avoid heavy traffi c.
5. Always install transport lock pins and retainers
before transporting.
6. Do not drink and drive.
7. Be a safe and courteous driver. Always yield
to oncoming traffi c in all situations, including
narrow bridges, intersections, etc. Watch for
traffi c when operating near or crossing road-
ways.
8. Turn into curves or go up or down hills only
at a low speed and a gradual steering angle.
Make certain that at least 20% of the tractor's
weight is on the front wheels to maintain safe
steerage. Slow down on rough or uneven
ground.
9. Never allow riders on either tractor or ma-
chine.
2.8 STORAGE SAFETY
1. Store the unit in an area away from human
activity.
2. Do not allow children to play on or around the
stored machine.
3. Store the unit in a dry, level area. Support the
frame with planks if required.
2.10 HYDRAULIC SAFETY
1. Make sure that all the components in the hy-
draulic system are kept in good condition and
are clean.
2. Before applying pressure to the system, make
sure all components are tight, and that lines,
hoses and couplings are not damaged.
3. Do not attempt any makeshift repairs to the
hydraulic lines, fi ttings or hoses by using
tapes, clamps or cements. The hydraulic sys-
tem operates under extremely high pressure.
Such repairs will fail suddenly and create a
hazardous and unsafe condition.
4. Wear proper hand and eye
protection when searching
for a high pressure hy-
draulic leak. Use a piece
of wood or cardboard as a
backstop instead of hands
to isolate and identify a
leak.
5. If injured by a concentrated high-pressure
stream of hydraulic fl uid, seek medical atten-
tion immediately. Serious infection or toxic
reaction can develop from hydraulic fl uid
piercing the skin surface.
6. Relieve pressure on hydraulic system before
maintaining or working on system.
2.11 SIGN-OFF FORM
Wallenstein follows the general Safety Standards specifi ed by the American Society of Agricultural and
Biological Engineers (ASABE) and the Occupational Safety and Health Administration (OSHA). Anyone
who will be using and/or maintaining the Backhoe must read and clearly understand ALL Safety, Usage and
Maintenance information presented in this manual.
Do not use or allow anyone else to use this Backhoe until such information has been reviewed. Annually
review this information before the season start-up.
Make these periodic reviews of SAFETY and OPERATION a standard practice for all of your equipment. We
feel that an untrained operator is unqualifi ed to use this machine.
A sign-off sheet is provided for your record keeping to show that all personnel who will be working with the
equipment have read and understand the information in the Operator’s Manual and have been instructed in
the operation of the equipment.
EMPLOYEES SIGNATURE
EMPLOYERS SIGNATURE
SIGN-OFF FORM
DATE
REMEMBER - If safety signs have been damaged, removed, become illegible or parts replaced without
safety signs, new signs must be applied. New safety signs are available from your authorized dealer.
3 SAFETY SIGN LOCATIONS
3.1 THREE PANEL SAFETY SIGNS
The types of safety signs and locations on the equipment are shown in the illustrations that follow. Good
safety requires that you familiarize yourself with the various safety signs, the type of warning and the
area, or particular function related to that area, that requires your SAFETY AWARENESS.
• Think SAFETY! Work SAFELY!
A
B
A
B
C
C
#Z94036
#Z94037
REMEMBER - If safety signs have been damaged, removed, become illegible or parts replaced without
safety signs, new signs must be applied. New safety signs are available from your authorized dealer.
The types of safety signs and locations on the equipment are shown in the illustrations that follow. Good
safety requires that you familiarize yourself with the various safety signs, the type of warning and the
area, or particular function related to that area, that requires your SAFETY AWARENESS.
• Think SAFETY! Work SAFELY!
C
Install lock pin and retainer
through boom swing and raise
lock brackets before transport-
ing or servicing.
WARNING
A
B
C
#Z94038
REMEMBER - If safety signs have been damaged, removed, become illegible or parts replaced without
safety signs, new signs must be applied. New safety signs are available from your authorized dealer.
3.2 TWO PANEL SAFETY SIGNS
The types of safety signs and locations on the equipment are shown in the illustrations that follow. Good
safety requires that you familiarize yourself with the various safety signs, the type of warning and the
area, or particular function related to that area, that requires your SAFETY AWARENESS.
• Think SAFETY! Work SAFELY!
A
B
A
B
C
C
Z94119
Z94112
REMEMBER - If safety signs have been damaged, removed, become illegible or parts replaced without
safety signs, new signs must be applied. New safety signs are available from your authorized dealer.
The types of safety signs and locations on the equipment are shown in the illustrations that follow. Good
safety requires that you familiarize yourself with the various safety signs, the type of warning and the
area, or particular function related to that area, that requires your SAFETY AWARENESS.
• Think SAFETY! Work SAFELY!
C
A
B
C
Z94113
The Wallenstein Backhoe is a medium duty ma-
chine that attaches to the 3 point hitch or sub-
frame of a low horsepower Agricultural tractor or a
skidsteer and can be used for all light to medium
duty digging, trenching and excavating. Be famil-
iar with the machine before starting.
It is the responsibility of the owner or opera-
tor to read this manual and to train all other
operators before they start working with the
machine. Follow all safety instructions exact-
ly. Safety is everyone's business. By follow-
ing recommended procedures, a safe work-
ing environment is provided for the operator,
bystanders and the area around the work site.
Untrained operators are not qualifi ed to use
the machine.
Follow all safety instructions exactly. Safety
is everyone's business. By following recom-
mended procedures, a safe working environ-
ment is provided for the operator, bystanders
and the area around the work site. Untrained
operators are not qualifi ed to operate the ma-
chine.
Many features incorporated into this machine
are the result of suggestions made by custom-
ers like you. Read this manual carefully to learn
how to use the Backhoe safely and how to set it
to provide maximum fi eld effi ciency. By following
the using instructions in conjunction with a good
maintenance program, your Backhoe will provide
many years of trouble-free service.
4.1 TO THE NEW OPERATOR OR OWNER
OPERATING SAFETY
1. Please remember it is important that you read
and heed the safety signs on the Backhoe.
2. Always use the drawbar anchor bracket when
mounting a Backhoe to tractor. Adjust to prevent
Backhoe from moving when digging.
3. Attach the tractor side plate to reinforce the
frame if required. Do not overload the tractor
frame.
4. Review maps of underground utilities before
starting to dig. Remove all sticks, stones,
roots, and wires from working area before
starting. Take care not to contact overhead
and underground obstructions during opera-
tion.
5. Never operate controls from the ground. Op-
erate only from the operator's seat to prevent
unexpected boom movement that can lead to
crushing between frame members.
6. Do not dig under machine or stabilizers. A
cave-in could result and the machine could
fall into the excavation.
7. Lower stabilizers to the ground to support
machine befoe starting to dig.
8. Do not exceed machine lift capacity. Overload-
ing can cause structural damage and lead to
unsafe operating conditions.
9. Position Backhoe so that loads extend directly
behind machine when lifting or placing heavy
objects.
10. Never carry, lift or move people on boom or
bucket.
11. Never place any part of your body where it
would be in danger if movement should oc-
cur during assembly, installation, operation,
maintaining, repairing, removal or moving.
12. Do not walk or work under a raised machine
or attachment unless it is securely blocked or
held in position. Do not depend on the trac-
tor hydraulic system to hold the machine or
attachment in place.
13. Do not allow riders on this machine at any
time. There is no safe place for any riders.
14. Before you operate the machine, check over
all hydraulic lines, hoses, connections and
components. Replace any worn or dam-
aged parts immediately. Tighten all leaking
fi ttings.
14. Do not allow anyone who is not familiar with
the safety rules and operation instructions to
use this machine. Review safety instructions
annually.
4.2 MACHINE COMPONENTS
The Wallenstein Backhoe Attachment attaches
to a 3 point hitch or subframe of a small Agri-
cultural or compact tractor. The Backhoe can
also be mounted on a skid steer. The main
frame mounts to the 3 point hitch or subframe
and includes the controls and operator's seat.
Stabilizers extend down from the main frame to
provide a stable work platform.
Using a 3 Point Hitch will put strain on the top
link of the tractor. Use only on a tractor with a
top link strong enough to handle the load.
Power to operate the hydraulics is provided by
the tractor hydraulics. The hydraulic controls
are mounted on top of the main frame.
An optional hydraulic pump and oil reservoir
is available to mount to the tractor PTO and
provide power to the backhoe if the tractor does
not have an appropriate hydraulic system.
An optional subframe is available for attaching
to a smaller tractor if it is not equipped with a 3
point hitch. An optional subframe is available
to mount along each side of the tractor as a
reinforcement if required. Contact Wallenstein
for the exact attaching kit for your tractor.
A Main Frame
B Boom
C Dipper
D Bucket
E Stabilizers
F Hydraulic Pump
G Oil Reservoir
H Controls
J Seat
K 3 Point Hitch
L Hitch Mounting Subframe
M Side Reinforcing Subframe
Fig. 1 MACHINE COMPONENTS
4.3 MACHINE BREAK-IN
Although there are no operational restrictions
on the Backhoe when used for the fi rst time, it is
recommended that the following mechanical items
be checked:
A. After operating for 1/2 hour:
1. Check all nuts, bolts and other fasteners.
Tighten to their specifi ed torque.
2. Check that the bucket is in good condition
and pinned securely to the dipper.
3. Check the condition of all hydraulic lines,
hoses and fi ttings. Replace any that are
damaged. Re-route those that are rub-
bing, pinched or crimped. Tighten any
fi tting that is leaking.
4. Check the condition of the teeth on the
bucket. Replace any that are bent,
chipped, broken or missing.
5. Check the oil level in the hydraulic reser-
voir if so equipped. Add as required.
6. Check the boom, dipper and bucket
4.4 PRE-OPERATION CHECKLIST
Effi cient and safe operation of the Backhoe re-
quires that each operator reads and understands
the operating procedures and all related safety
precautions outlined in this section. A pre-opera-
tion checklist is provided for the operator. It is
important for both the personal safety and main-
taining good mechanical condition that this check-
list is followed.
Before operating the machine and each time
thereafter, the following areas should be checked
off:
1. Lubricate the machine per the schedule out-
line in Section 5 Service and Maintenance.
2. Use only a tractor of adequate power and
weight to operate the machine.
3. Check that the machine is properly attached
to the tractor. Be sure retainers are used on
the mounting pins and mounting hardware is
tightened to their specifi ed torque.
4. Check the oil in the reservoir if so equipped.
Add as required.
5. Check the condition of all hydraulic lines,
hoses and fi ttings. Replace any that are
damaged. Re-route those that are rubbing,
pinched or crimped. Tighten any fi tting that is
leaking.
6. Check the condition of the teeth on the
bucket. Replace any that are bent, chipped,
broken or missing.
7. Check all parts for entangled material. Re-
move entangled material.
8. Install and secure all guards, doors and cov-
ers before starting.
4.5 EQUIPMENT MATCHING
To insure the safe and reliable operation of the Back-
hoe, it is necessary to use a tractor with the correct
specifi cations. Use the following list as a guide in se-
lecting a tractor to use on the machine.
1.
Horsepower:
Although horsepower is not required to operate the
backhoe, it does establish the size of the 3 point
hitch and total weight for machine stability. Do not
exceed the backhoe power specifi cations.
2.
Tractor Weight:
By following the recommendations for the tractor
power, the tractor will have suffi cient weight to pro-
vide stability for the unit when transporting. It is also
recommended that each tractor be equipped with
a front end loader or a full complement of suitcase
weights on the front of the tractor. This will provide
the required weight on the front for transport stabil-
ity or to counter-balance the dynamic loads during
operation.
3.
3 Point Hitch:
The Backhoe is equipped with a Category I or I and
II 3 point hitch depending on the model. Be sure the
tractor 3 point hitch is in the proper confi guration.
Install the lift arm blocks or shorten the stop chains
to place the arms into the non-sway confi guration.
Refer to the tractor manual for details. Be sure
tractor top link is strong enough to handle load.
4.
Subframe:
For small tractors without a 3 point hitch, subframes
that attach to the rear of the tractor provide a mount-
ing frame for the backhoe.
a. The subframe that attaches to the rear of the
tractor is called a 4 point mounting system.
b. The subframe that has a frame that extends
along the side of the frame is called the belly
mount.
5.
PTO Shaft (Optional Hydraulic Unit):
The tractor must have a 1 1/3 inch 6 spline 540 RPM
PTO shaft to fi t the pump drive coupler available
with the kit. Do not use shaft adapters or operate
at any other speed.
It is not recommended that tractors with variable
speed PTOs be used on the Backhoe. Operating
at speeds faster than 540 RPM will overspeed the
pump and lead to early failures.
Fig. 2 3 POINT HITCH (typical)
Fig. 3 PUMP GEAR BOX (optional)
Table 1: Model vs. Tractor Horsepower
Model
Recommended
Tractor Horsepower
GX620
20 - 35
GX720
30 - 55
GX920
45 - 90
All controls on the Backhoe are mounted on top of the main frame within easy reach of the operator sitting in
the seat. It is recommended that all operators review this section of the manual to familiarize themselves with
the location and function of all machine controls before starting.
BUCKET
OPEN
BUCKET
CLOSED
DIPPER BOOM
UP
DIPPER BOOM
DOWN
LEFT
STABILIZER
UP
LEFT
STABILIZER
DOWN
RIGHT
STABILIZER
UP
RIGHT
STABILIZER
DOWN
SWING
LEFT
SWING
RIGHT
BOOM
DOWN
BOOM
UP
Z94035
Fig. 4 HYDRAULIC CONTROLS
1.
Hydraulic Valve Levers:
All hydraulic control valves are mounted on top
of the main frame. The two middle levers control
the position of the stabilizers and the outer joy
sticks control the function of the boom, dipper and
bucket.
a. Left Lever - Boom Position:
This 4 position spring-loaded-to-neutral-
center lever (joy stick) controls the angular
position of the
boom. Move
and hold the
lever to the left
to swing the
boom to the
left. Move and hold the lever to the right to
swing the boom to the right. Push and hold
the lever to extend the boom. Pull and hold
the lever to pull the the boom toward the main
frame. Release the lever to stop the motion
of the boom and it will stay in position.
b. Left Center Lever - Left Stabilizer Pos-
tion:
This 2 position spring-loaded-to-neutral-cent-
er lever controls the fl ow
of oil to the left stabilizer
cylinder. In its centered
position, the stabilizer
does not move. Push
and hold to lower the left
stabilizer to the desired
position. Release the
lever to stop the stabilizer movement. Pull
and hold the lever to raise the left stabilizer.
Release the lever when the stabilizer is in its
desired position.
c. Right Center Lever - Right Stabilizer Posi-
tion:
This 2 position spring-loaded-to-neutral-
center lever controls the
flow of oil to the right
stabilizer cylinder. In its
centered position, the
stabilizer does not move.
Push and hold to lower
the right stabilizer to the
desired position. Release
the lever to stop the stabilizer movement. Pull
and hold the lever to raise the right stabilizer.
Release the lever when the stabilizer is in its
desired position.
d. Right Center Lever - Outer Boom and
Bucket Position:
This 4 position spring-loaded-to-neutral-center
lever (joy stick) controls the position of the
dipper, boom and bucket. Move and hold the
lever to the left to close the bucket. Move and
hold the lever to the right to open the bucket.
Push and hold the lever to extend or raise the
dipper boom. Pull and hold the lever to retract
or lower the dipper boom. Release the lever
to stop the motion of the dipper boom and the
bucket and they will remain in their position.
a
b
c
d
SWING
LEFT
SWING
RIGHT
BOOM
DOWN
BOOM
UP
BUCKET
OPEN
BUCKET
CLOSED
DIPPER BOOM
UP
DIPPER BOOM
DOWN
LEFT
STABILIZER
UP
LEFT
STABILIZER
DOWN
RIGHT
STABILIZER
UP
RIGHT
STABILIZER
DOWN
Flow Control Valve:
This dial sets the fl ow control valve that
controls the amount of oil to the boom swing
circuit. Turn the dial clockwise to reduce the
amount of oil fl ow and slow the speed of the
boom swing. Turn the dial counterclockwise
to increase the speed of the boom swing.
Fig. 5 FLOW CONTROL (Boom Swing Speed)
Flow Control Divider
Flow Control Graphic
4.7 MACHINE PREPARATION AND ASSEMBLY
The backhoe(s) can be mounted to a wide va-
riety of models and makes of tractors with dif-
ferent features and confi gurations. However
mounting of adaptors and other brackets must
be performed on the tractor prior to hooking up
the backhoe.
4.7.1 CENTER LINK AND STRUT
(On 3 Point Hitch Models)
The best performance is obtained when the bot-
tom of the frame is set 13 inches (330mm) above
the ground. The weight and dynamic loads from
the backhoe must be transmitted through the
lower links of the 3 point hitch, the top adjustable
bracket and adjustable strut.
It is necessary to install the components and
check that the backhoe frame is at the recom-
mended height.
To prepare the tractor and backhoe, follow this
procedure:
1. Make sure that all bystanders, especially
small children are clear of the work area.
2. Stop engine, set park brake, remove igni-
tion key and wait for all moving parts to
stop.
3. Position center frame next to backhoe and
lay out fasteners.
4. Install fasteners on both sides.
5. Tighten fasteners to their specified
torque.
Fig. 6 CENTER FRAME
Center Frame Lay-Out
Left
Right
Installed
6. Remove drawbar anchor bracket.
7. Mount anchor bracket to the tractor draw-
bar.
8. Tighten fasteners to their specified
torque.
9. Check that the center link and support
strut position the frame 13 inches (330mm)
above the ground.
a. Mount backhoe to tractor.
b. Use the adjusting holes in the
center link to provide the required
frame height. Tighten fasteners to their
specifi ed torque.
c. Use the turnbuckle to set the length of
the support strut. Use the jam nut to
lock the turnbuckle.
Fig. 7 ANCHOR BRACKET
Bracket
Installed
Adjusting Holes
Turnbuckle
Frame Height
Fig. 8 LENGTHS
4.7.2 BELLY MOUNT SYSTEM
The backhoe can be mounted to smaller, low
horsepower tractors and provide excellent per-
formance. Dynamic loading during operation
can introduce high structural loads into the trac-
tor frame. A reinforcing frame can be installed
on each side to provide extra support. Contact
your dealer or the factory for details on the re-
inforcing kit for your specifi c tractor.
When mounting reinforcing kit follow this proce-
dure and the instructions provided with the kit:
1. Be sure that all bystanders, especially
small children are clear of the work area.
2. Stop engine, set park brake, remove igni-
tion key and wait for all moving parts to
stop.
3. Lay out reinforcing kit.
4. Slide the frame under the tractor.
5. Mount the anchor bracket to the tractor
frame. Add the spacer if required.
6. Raise the front of the frame and attach to
the anchor bracket.
7. Raise the rear of the frame and attach to
tractor.
8. Tighten all fasteners to their specifi ed
torque.
9. Always use tractor toplink with belly-
mounted subframe (tractor to backhoe - fi ts
below seat.).
Fig. 9 KIT LAY-OUT (typical)
Frame
Mounted
NOTE
Kits are available to fi t your
specifi c tractor. Use only the kit
designed for your tactor.
4.7.3 4 POINT MOUNTING SYSTEM
Smaller tractors are not normally designed with
an appropriate 3 point hitch for mounting a back-
hoe. A specifi c kit is available that attaches to the
rear of the tractor and front of the backhoe that
allows for mounting. Contact your dealer or the
factory for the kit appropriate for your tractor
When mounting attaching frame, follow this
procedure:
1. Review instructions provided with the sub-
frame kit.
2. Clear the area of bystanders, especially
small children before starting.
3. Stop engine, set park brake, remove igni-
tion key and wait for all moving parts to
stop.
4. Lay out the frames that mount to the back
of the tractor and the front of the back-
hoe.
5. Mount the adapter frame to the back of the
tractor:
a. Position the frame against the back of
the tractor.
b. Secure with mounting bolts and tighten
to their specifi ed torque.
6. Mount the adapter frame to the back of the
backhoe:
a. Position the adapter frame against the
back of the backhoe frame.
b. Secure with mounting bolts and tighten
to their specifi ed torque.
Fig. 10 LAY-OUT
Fig. 11 TRACTOR ADAPTER
Fig. 12 BACKHOE ADAPTER
4.7.4 AUXILIARY HYDRAULIC SYSTEM
Some tractors are not equipped with a hydraulic system
that can be used to power the backhoe. An optional aux-
iliary hydraulic system is available and can be mounted to
the backhoe.
When mounting the auxiliary hydraulic system, follow this
procedure:
Fig. 13 LAY-OUT
1. Clear the area of bystanders, especially
small children before starting.
2. Lay out the auxiliary hydraulic system.
3. Mount the oil reservoir to the backhoe
frame:
a.
Move the tank into position.
b.
Install mounting bolts.
c.
Tighten mounting bolts to their spec-
fi ed torque.
NOTE
Be sure the mounting adapter
is attached to the backhoe.
Positioning
Mounting
Mounted
Fig. 14 OIL RESERVOIR
Fig. 15 COUPLER REMOVED
4. Remove the couplers from the hose
ends.
5. Wrap the threads with tefl on tape to prevent
leaks.
6. Connect the input (high-pressure) line to
the pump outlet. Tighten to its specifi ed
torque.
7. Connect the return (low-pressure) line to the
fi lter head.
Fig. 16 RETURN LINE
NOTE
The line is long. Form it into a
loop(s) and secure with tape,
clips or plastic ties.
8. Fill the reservoir with 3 gallons (11 l) of the
specifi ed oil.
9. Install the reservoir cover.
Fig. 17 FILLING
Fig. 18 COVER
4.8 ATTACHING / UNHOOKING TRACTOR
The machine is shipped from the factory in a
basic, universal confi guration that allows it to
be mounted to any model tractor with the ap-
propriate mounting kit. This section will cover
the mounting of some typical kits. Contact your
dealer or the factory for more details about your
specifi c model.
4.8.1 MOUNTING
The Backhoe should always be located on a
level, dry area that is free of debris and other
foreign objects. When attaching the Backhoe
to the tractor, follow this procedure:
1. Make sure that all bystanders, especially
small children are clear of the work area.
2. Make sure there is enough room and clear-
ance to safely back up to the Backhoe.
3. Stop close enough so the hydraulic lines can
reach the couplers on the tractor.
4. Attach the hydraulic system:
a.
Use a clean rage or paper towel to
clean dirt from around the coupler on
the hose end and on the tractor.
b.
Connect the hose to the tractor
coupler. Be sure the coupler is
securely sealed.
IMPORTANT
Be sure to connect to the circuit
that has a detent to allow for the
steady fl ow of oil.
Fig. 19 MACHINE
Fig. 20 HYDRAULIC LINES
5. Start the tractor engine. set
parking brake, set the throttle at
its mid-range and place hydrau-
lic lever in detent.
6. Use the controls to raise the
backhoe frame to match the
tractor mounting points.
7. Raise each stabilizer in turn
along with the dipper / bucket
to raise the frame. Raise a lit-
tle each time to keep the frame
level.
8. Raise until the mounting brack-
ets align with the 3 point hitch
lower links.
Stored
Fig. 21 FRAME RAISING
Frame Raised
Aligned
9. Install the pins and retainers through the
lower links.
a.
Right.
b.
Left.
10. Install the pin and retainer through the top
link.
Right
Fig. 22 PINS AND RETAINERS
Left
Fig. 23 TOP LINK PIN
Fig. 24 SUPPORT STRUT
11. Install the center support strut. Install the
pins and retainers through each end.
NOTE
It may be necessary to move
the dipper / bucket to align the
holes.
12. Retract the boom / bucket and stabilizers.
13. Carefully use the controls to set the bottom
of the frame 13 inches (330 mm) above the
ground.
Mounted
Fig. 25 HEIGHT
Raised
IMPORTANT
If the top link and strut do not
support the frame at this height,
they need to be re-adjusted so
they do.
14. Reverse the above procedure when un-
hooking. Be sure to place planks under the
stabilizers and bucket for added support.
(330 mm)
4.8.2 MOUNTING WITH OPTIONAL HYDRAULIC PUMP
Pump Installed
Fig. 26 POSITIONED
Anchor Chain
Fig. 27 PUMP MOUNTING
The Backhoe should always be located on a
level, dry area that is free of debris and other
foreign objects. When attaching the Backhoe
with the optional hydraulic pump to the tractor,
follow this procedure:
1. Make sure that all bystanders, especially
small children are clear of the work area.
2. Make sure there is enough room and clear-
ance to safely back up to the Backhoe.
3. Stop close enough so the length of the hy-
draulic lines allow the pump to be mounted
to the tractor. Set the park brake and remove
the ignition key.
4. Retract the lock pin and slide the pump over
the PTO shaft. Be sure the lock pin seats in
the groove. Pull on the pump to be sure.
5. Attach the anchor chain to a part of the frame
to prevent the pump from turning.
6. Start the tractor, set park brake and engage
the PTO. Set the throttle at mid-range. This
will provide oil to the hydraulic system on the
backhoe.
7. Use the backhoe con-
trols to set and move the
height of the frame.
8. Move the dipper / buck-
et and the stabilizers
in small movements
to align the backhoe
mounting brackets with
the pins on the tractor.
Fig. 28 CONTROLS
Fig. 29 MOUNTING PINS
9. Back the tractor until the
mounting brackets align
with the tractor. Move
the frame up as required
to engage the brackets
around the pins.
10. Install the mounting pins
and their retainers through
the anchor brackets.
Fig. 30 ATTACHING
Aligning
Pin (typical)
Mounting Pin
Fig. 31 ATTACHED
11. Raise the boom, raise dipper,
retract bucket and raise stabi-
lizers.
12. Reverse the above proce-
dures when unhooking a
backhoe that is equipped with
an optional PTO kit.
NOTE
It is recommended that planks
be placed under the stabilizers
and bucket for added support.
4.8.3 MOUNTING TO SKID STEER
The Backhoe can be mounted to a
skid steer loader if it is equipped with
the appropriate mounting kits. The re-
mote hydraulic outlet must be located
at the end of the loader arms to pro-
vide pressurized oil to the backhoe.
When mounting to a skid steer, follow
this procedure:
1. Clear the area of all bystanders,
especially small children.
2. Mount the face plate attaching
frame to the back of the backhoe
frame.
3. Tighten fasteners to their speci-
fi ed torque.
4. Mount anchor frame to the front
of the skid steer frame.
5. Tighten fasteners to their speci-
fi ed torque.
Frame
Attached
Fig. 32 FACE PLATE ATTACHING FRAME
Fig. 33 ANCHOR FRAME
Fig. 35 HYDRAULICS
Fig. 34 ALIGNING
6. Drive up to the backhoe while
aligning the mounting compo-
nents.
7. Connect the hydraulics:
a. Use a clean rag or paper
towel to clean the dirt from
the couplers on the hose
ends and the skid steer.
b. Connect the hoses to the
skid steer couplers. Be sure
the couplers are securely
seated.
c. Route and secure the hoses
along the frame with clips,
tape or plastic ties to pre-
vent binding and pinching.
Be sure to provide slack for
tilting.
Fig. 36 FACE PLATE
8. Start the skid steer and place
the hydraulic system in detent
to supply oil to the coupler.
9. Climb on the backhoe and use
the controls to raise the frame
if required to allow the skid
steer face plate to mate with
the backhoe.
10. Drive the skid steer forward
and mate the loader face plate
into the backhoe.
11. Lift the frame slightly when
the face plate is mated to the
backhoe.
12. Lock the pins.
Lifted
Locked
Fig. 37 ATTACHED
13. Mount the support turnbuckles
between the skid steer and
mounting frame.
14. Install anchor pins and retain-
ers.
15. Be sure that they are the same
length to equalize the loading.
Measure to be sure.
16. Raise the stabilizers, boom,
dipper and bucket.
17. Reverse the above proce-
dure when unhooking.
18. Place planks or boards un-
der the bucket, frame and
stabilizers for extra support
if required.
Turnbuckles
Pins and Retainers
Fig. 38 SUPPORT TURNBUCKLES
Fig. 39 MOUNTED
4.9 FIELD OPERATION
Follow this procedure when using the Backhoe:
1. Prepare the tractor and Backhoe (refer to sec-
tion 4.7)
2. Attach Backhoe to the tractor (refer to Section
4.8).
3. Review and follow the pre-operation check-
lists (refer to Section 4.4).
4. Review the location and function of all con-
trols (refer to Section 4.5)
5. Review the work site and plan the project
before starting.
OPERATING SAFETY
1. Please remember it is important that you
read and heed the safety signs on the Back-
hoe.
2. Always use the center anchor bracket when
mounting a Backhoe to tractor. Adjust to
prevent Backhoe from moving when digging.
3. Attach the tractor side plate to reinforce the
frame if required. Do not overload the trac-
tor frame.
4. Review maps of underground utilities before
starting to dig. Remove all sticks, stones,
roots, and wires from working area before
starting. Take care not to contact overhead
and underground obstructions during opera-
tion.
5. Never operate controls from the ground.
Operate only from the operator's seat to pre-
vent unexpected boom movement that can
lead to crushing between frame members.
6. Do not dig under machine or stabilizers. A
cave-in could result and the machine could
fall into the excavation.
7. Lower stabilizers to the ground to support
machine befoe starting to dig.
8. Do not exceed machine lift capacity. Over-
loading can cause structural damage and
lead to unsafe operating conditions.
9. Position Backhoe so that loads extend
directly behind machine when lifting or plac-
ing heavy objects.
10. Never carry, lift or move people on boom or
bucket.
11. Never place any part of your body where it
would be in danger if movement should oc-
cur during assembly, installation, operation,
maintaining, repairing, removal or moving.
12. Do not walk or work under a raised machine
or attachment unless it is securely blocked
or held in position. Do not depend on the
tractor hydraulic system to hold the ma-
chine or attachment in place.
13. Do not allow riders on this machine at any
time. There is no safe place for any riders.
14. Before you operate the machine, check
over all hydraulic lines, hoses, connec-
tions and components. Replace any worn
or damaged parts immediately. Tighten all
leaking fi ttings.
14. Do not allow anyone who is not familiar with
the safety rules and operation instructions
to use this machine. Review safety instruc-
tions annually.
6. Transport the Backhoe to the worksire (refer
to Section 4.10).
Each operator must be trained in
the proper operating procedures
prior to being allowed to operate
the machine.
a. Review control location,
function and movement
directions.
b. Move the unit to a large open
area to allow the operator to
become familiar with control
function and machine re-
sponse.
c. When a new operator is
familiar and comfortable
with the machine, they can
proceed with the work. Do
not allow untrained operators to use the
machine. They can endanger themselves
and others or damage property and the
machine.
8. Job Site:
It is the responsibility of the operator to be
thoroughly familiar with the work site prior to
starting. Prevent the chance or possiblity of
problems or accidents by not being in the situ-
ation to start with. Some items the operators
should check include but are not limited to:
a. Underground wires, cables, pipes or other
obstructions if digging. Contact your local
utility to identify exactly the location of the
lines, pipes, etc. Turn off, disconnect, etc.
as required to prevent a problem if contact
is made.
b. Overhead power lines, obstructions or
overhangs. Power lines can lead to
electrocution if the machine gets too close
without contacting the line. Overhead
obstructions can cause a loss of control or
tipping from the contact. Overhangs can
collapse or give way covering the machine
or causing it to move as the footing gives
way.
c. Close or cramped work site. Be sure
there is suffi cient space and clearance for
the machine to dig, swing and dump while
working. If the working area is cramped,
modify the work site to provide more area.
Unplanned contact with adjacent build-
ings, equipment or terrain can cause the
operator to lose control of the machine
leading to injury or damage to buildings or
equipment
d. Working Lay-Out:
Organize the work site to minimize the
distance the support equipment has to
travel between digging and dumping. The
shorter the travel distance the faster the
dig / dump cycle will be and the more that
can be done.
e. Prevailing Winds:
Set-up the work site so the prevailing
winds will blow dust, dirt, straw, chaff, de-
bris, snow, etc. away from the air intakes
for the engine and cooling system. As
a result, there will be less need to clean
these systems and more time can be
spent working.
f. Smooth the Surfaces:
A rough surface will require slow speeds
of support equipment while working.
Smoothing the surface prior to starting to
work will shorten the work cycle and result
in higher productivity.
Fig. 40 TRAINING
9. Machine Placement:
It is the responsibility of the operator to review
the work site layout and how to best position
the machine. Items to consider include but
are not limited to:
a. Working Inside a Building:
Some jobs require that the backhoe be op-
erated inside a building. The machine can
be operated inside a building providing
that the engine exhaust is piped outside
and/or there is adequate ventilation. Gas
and diesel engines produce carbon mon-
oxide that can asphyxiate operators and
bystanders if not supplied with fresh air.
Do not take chances with carbon monox-
ide poisoning.
b. Bystanders:
Do not place the backhoe where there will
be any bystanders, on-lookers or unau-
thorized personnel. Stop the machine
whenever unauthorized personnel enter
the working area. Unauthorized personnel
can get in the way or get pinched / caught
by components. Do not resume work until
the unauthorized people have left.
c. Slopes:
Slopes have
special placement
requirements when
locating the ma-
chine. The ma-
chine is designed
to carry the operat-
ing loads when the
frame is vertical.
Nornally this can be
set by the stabilizer
extension length.
Large blocks or
planks can be
placed under the
low stabilizer to
assist in setting the
frame angle.
Swing the boom
up the slope when
dumping the bucket
to minimize the chance of tipping. Al-
ways keep the bucket close to the ground
when swinging the boom to reduce tipping
loads.
Fig. 41 STABILIZER
10. Park the tractor / backhoe at its appro-
priate location and lower the loader to
the ground (if so equipped).
11. Set the park brake.
12. Starting:
a. Start the tractor engine (refer to
tractor manual).
b. Place hydraulic circuit in detent or
engage PTO clutch (refer to tractor
manual).
c. Increase engine speed to mid-range
or rated PTO RPM.
d. Dismount from the tractor.
IMPORTANT
Lower the stabilizer until a portion
of the weight of the tractor is sup-
ported by the stabilizer to provide
extra stability.
e. Mount the backhoe and sit in the opera-
tor's seat.
f. Remove the boom swing and extend lock
pins and stow.
g. Use the center hydraulic levers to extend
the stabilizers and support the frame.
a. Swing b. Extend
Fig. 42 LOCK PINS
Extending
Fig. 43 STABILIZERS
Extended
b
a
Fig. 44 STOPPING
14. Stopping:
a. Lower the dipper / bucket to
the ground.
b. Place all controls in neutral.
c. If the machine will be moved
to a new location, swing the
boom into its straight posi-
tion and fully retract boom to
align lock pin brackets.
d. Install both lock pins and
their retainers
e. If the machine is being
moved to a new location,
raise the stabilizers to their
fully up position.
f. Dismount from the backhoe.
g. Mount the tractor and sit in its seat.
h. Slow the engine to idle.
i.
Turn the hydraulic circuit to OFF or disen-
gage the PTO clutch.
j.
Shut off engine.
15. Emergency Stopping:
In case of an emergency, lower the dipper /
bucket to the ground and stop engine. Be
sure to resolve and correct the emergency
situation before resuming work. Do not take
chances in an emergency.
a. Always extend the stabilizers to
set the frame level and vertical
when placing the machine at the
work site. Support the weight of
the rear of the tractor on the stabi-
lizers to eliminate the fl exing of the
tires during operation. Tire fl exing
will allow the frame to move if not
fully supported on the stabiliz-
ers. Movement can allow the for
binding or pinching of the frame
and reduce effi ciency or cause
mechanical problems.
b. Also use the stabilizers to set the
angle when operating on a slope.
Extend one stabilizer more than the other on a
gradual slope. Place a large block or planks under
the low side when on a steeper slope.
c. Do not excavate under the stabilizers. Removing
soil from under a stabilizer can result in crumbling of
the soil and collapse of the stabilizer / machine into
the hole. Always know the soil shearing properties
and provide suffi cient area to carry the weight of the
machine.
Fig. 45 STABILIZERS
17. Digging Action:
a. Digging With Dipper:
i.
Set the bucket at the appropriate angle
as shown by profi le.
ii. Set the dipper so the bucket teeth hit
the ground approximately 2 feet (0.6
m) ahead of pivot.
Fig. 46 DIGGING WITH ARM
iii. Retract the dipper to pull the bucket
through the soil until it is full.
iv. Raise the boom and dump the bucket.
v. Repeat this procedure to continue
digging by extending the bucket 3 to
6 inches (75 - 150 mm) further each
time.
NOTE
Be sure the dipper and bucket
angles are set so that the heel of
the bucket does not hit the bottom
of the hole.
b. Digging With Bucket:
This is the procedure recom-
mended when a vertical wall is
desired at the end of a trench.
i.
Set the bucket so the bucket
teeth are nearly vertical.
ii. Use the boom to force the
bucket into the ground.
iii. Use the boom to force
the bucket further into the
ground and at the same time
roll the bucket back (curl)
until it is full.
iv. Raise the boom and dump
the bucket.
v. Continue to dig in the same
way by digging 3 to 6 inches
(75 to 150 mm) deeper each
time.
c. Positioning:
i.
Position the unit so the
boom is centered behind the
frame.
Fig. 47 DIGGING WITH BUCKET
Fig. 48 CENTERED
a. The backhoe works well for trech-
ing. Use the arm or bucket method
to dig.
b. Extend the trench between the sta-
bilizers as far as it will go. Be sure
not to undercut the stabilizers and
create a cave-in. Be familiar with
the reach and curl of the bucket.
19. Moving When Trenching:
Follow this procedure when moving to
the next digging position:
a. Swing and dump the bucket. Be
sure it is empty.
b. Retract the boom and bucket and
tuck them up against the rear frame.
c. Raise both stabilizers.
d. Dismount and raise the seat.
e. Transfer to the tractor seat.
f. Slow the engine speed to idle.
g. Turn the hydraulic circuit off or
disengage the PTO clutch and raise
loader (if so equipped).
h. Engage the transmission and drive ahead
a short distance.
i. Lower loader to the ground, set park brake
and place hydraulic control in detent or
engage PTO.
j. Increase speed mid-range PTO RPM.
NOTE
Do not move too far ahead each
time. Moving too far will exceed
the reach of the bucket and the
operator will not be able to form an
even bottom.
Fig. 49 BUCKET REACH
Fig. 50 RETRACTED
Use either the arm or the bucket digging
method to excavate the hole.
a. Be careful not to dig under the stabilizers.
Undermining the stabilizer can cause the
machine to fall into the hole.
b. Dump the bucket far enough away from
the hole so the tailings do not fall back
into the hole.
c. Use a truck with low sides when dumping
the bucket.
21. Bucket Teeth:
The bucket teeth can be replaced. Check on
their condition weekly. Replace if chipped,
bent or damaged.
22. Loads:
The backhoe can be used to lift and place
lines, pipes or other loads into trenches or
excavations.
a. Do not exceed the lifting capacity of the
backhoe. Review the capacity specs and
do not overload.
b. Always position the tractor at right angles
to the trench or excavation when moving
loads.
c. Do not carry or lift people on the back-
hoe.
d. Do not swing loads over people when
placing loads in trenches or excava-
tions.
23. Swing Speed:
All units are equipped with a fl ow divider dial
to control the boom swing speed if the tractor
does not have a fl ow control. Turn clockwise
to slow the swing speed and counterclock-
wise to increase it.
Fig. 51 DUMPING
Fig. 52 TEETH
Fig. 53 SWING SPEED
Flow Control Divider
Flow Control Graphic
24. Thumbs (Optional):
Backhoes can be equipped with an op-
tional thumb that is used as a back-stop
when picking up something. Thumbs
are available in a mechanical or hydrau-
lic position version.
a. Mechanical Thumb:
A kit is available that can be
mounted to the inside of the dip-
per arm. Use the adjustment in the
thumb and support arm to position
the thumb as required. Be sure
to install the retainers through the
mounting pins.
b. Hydraulic Thumb:
This kit is available to be mounted
to the inside of the dipper arm.
Route the hydraulic lines along the
dipper, boom and pivot points and
secure with clips or ties. Use the
control lever to position the thumb
as required.
Fig. 54 THUMBS
Mechanical Kit
Installing
Hydraulic
Fig. 55 MOUNTING GEOMETRY
Fig. 56 STABILIZERS
Fig. 57 BACK-FILLING
25. Operating Hints:
a. Review work site before position-
ing backhoe and starting work.
Stay away from utility lines and
obstructions.
b. Attach stabilizer bracket between
top link anchor and frame. At-
tach the support strut between
the frame and drawbar to secure
mounting linkage geometry. The
frame should be 13 inches (330
mm) above the ground.
c. Do not allow untrained personnel
to operate the machine.
d. Do not operate machine when
unauthorized people are in work
area. Stop until they leave.
e. Operate the machine only while sitting
in the tractor or backhoe seat. Never
operate controls while standing on the
ground.
f. Extend stabilizers and support ma-
chine to carry weight and loads.
g. Do not carry personnel on the boom or
bucket.
h. Do not dig under stabilizers to prevent
falling into excavation.
i.
Keep hydraulic components and fi t-
tings on tight and in good condition.
Comply with state and local laws govern-
ing safety and transporting of machinery on
public roads.
•
The use of fl ashing amber lights is accept-
able in most localities. However some
localities prohibit their use. Local laws
should be checked for all highway lighting
and marking requirements.
•
At all times, when driving the tractor and
equipment on the road or highway under 20
mph (32 kph) use fl ashing amber warning
lights and a slow moving vehicle (SMV)
identifi cation emblem. Do not exceed 20
mph (32 kph). Reduce speed on rough
roads and surfaces.
•
Plan your route to avoid heavy traffi c.
•
Always install transport lock pins and re-
tainers before transporting.
•
Do not drink and drive.
•
Be a safe and courteous driver. Always
yield to oncoming traffi c in all situations,
including narrow bridges, intersections,
etc. Watch for traffi c when operating near
or crossing roadways.
•
Turn into curves or go up or down hills
only at a low speed and a gradual steering
angle. Make certain that at least 20% of
the tractor's weight is on the front wheels
to maintain safe steerage. Slow down on
rough or uneven ground.
•
Never allow riders on either tractor or ma-
chine.
Fig. 58 TRANSPORT CONFIGURATION
Wallenstein Backhoes are designed to be
easily and conveniently moved from work site
to work site. When transporting, follow this
procedure:
1. Be sure all bystanders are clear of the
machine.
2. Be sure that the machine is hitched
positively to the tractor and retainers are
installed in each mounting pin.
3. Fully retract the boom and bucket.
4.10 TRANSPORTING
4. Install the boom swing and retract lock
pins and secure with its retainer.
5. Keep to the right and yield the right-of-
way to allow faster traffi c to pass. Drive
on the road shoulder, if permitted by
law.
6. Make sure the SMV (Slow Moving Ve-
hicle) emblem and all lights and refl ec-
tors required by the local highway and
transport authorities are in place, are
clean and can be seen clearly by all
overtaking and oncoming traffi c.
7. It is not recommended that the machine
be transported faster than 20 mph (32
kph). Table 2 gives the acceptable
transport speed as the ratio of tractor
weight to backhoe weight.
Fig. 59 BOOM SWING AND RETRACT LOCK PINS
a. Swing b. Retract
Fig. 60 TRANSPORTING
8. Do not allow riders on the machine or
tractor.
9. During periods of limited visibility, use
pilot vehicles and use extra lights on the
machine.
10. Always use hazard fl ashers on the trac-
tor when transporting unless prohibited
by law.
a.
b.
• Store the unit in an area away from human
activity.
• Do not permit children to play on or around
the stored machine.
• Store the unit in a dry, level area. Support the
frame with planks if required.
4.11 STORAGE
After the season's use, the machine should be thor-
oughly inspected and prepared for storage. Repair
or replace any worn or damaged components to
prevent any unnecessary down time at the start of
the next season. To ensure a long, trouble-free life,
this procedure should be followed when preparing
the unit for storage:
1. Clear the area of bystanders, especially small
children.
2. Thoroughly wash the machine using a pres-
sure washer to remove all dirt, mud, debris and
residue.
3. Inspect the bucket, dipper and boom for
damage or entangled material. Repair or
replace damaged parts. Remove all entan-
gled material.
4. Check the oil in the optional reservoir (if so
equipped). Add as required.
5. Lubricate all grease fi ttings. Make sure all
grease cavities have been fi lled with grease
to remove any water residue from wash-
ing.
6. Touch up all paint nicks and scratches to
prevent rusting.
7. Move to storage area.
8. Select an area that is dry, level and free of
debris.
9. Place blocks or planks under the stabilizers
and bucket.
10. Unhook from tractor (See Section 4.8).
11. Stow hydraulic hoses in storage brackets to
keep them off the ground.
4.11.1 PLACING IN STORAGE
Fig. 61 STORED
12. Apply a coat of heavy grease to exposed cylin-
der rams to prevent rusting.
13. If the machine cannot be placed inside, cover
with a waterproof tarpaulin and tie securely in
place.
14. Store the machine in an area away from human
activity.
15. Do not allow children to play on or around the
stored machine.
4.11.2 REMOVING FROM STORAGE
When removing from storage and preparing to use, fol-
low this procedure:
1. Clear the area of bystanders, especially small chil-
dren and remove foreign objects from the machine
and work area.
2. Attach the tractor to the backhoe by following the
procedure in Section 4.8.
3. Check
a. Oil level in optional reservoir. Add as required.
b. All hardware. Tighten as required.
c. All hydraulic lines, fi ttings and connections.
Tighten as required.
4. Lubricate all grease fi ttings.
5. Remove grease from cylinder rams.
6. Replace any defective parts.
7. Go through the pre-operation checklist (section 4.4)
before using.
• Good maintenance is your responsibility.
Poor maintenance is an invitation to trouble.
• Follow good shop practices.
-
Keep service area clean and dry.
-
Be sure electrical outlets and tools are
properly grounded.
-
Use adequate light for the job at hand.
• Make sure there is plenty of ventilation. Nev-
er operate the engine of the towing vehicle in
a closed building. The exhaust fumes may
cause asphyxiation.
•
Before working on this machine, shut off the
engine, set the brake, and turn fuel valve
off.
•
Never work under equipment unless it is
blocked securely.
•
Always use personal protection devices
such as eye, hand and hearing protectors,
when performing any service or main-
tenance work. Use heavy gloves when
handling sharp components.
•
Where replacement parts are necessary
for periodic maintenance and servicing,
genuine factory replacement parts must be
used to restore your equipment to original
specifi cations. The manufacturer will not be
responsible for injuries or damages caused
by use of unapproved parts and/or acces-
sories.
•
A fi re extinguisher and fi rst aid kit should
be kept readily accessible while performing
maintenance on this equipment.
•
Periodically tighten all bolts, nuts and
screws and check that all electrical and fuel
connections are properly secured to ensure
unit is in a safe condition.
• When completing a maintenance or service
function, make sure all safety shields and de-
vices are installed before placing unit in serv-
ice.
5 SERVICE AND MAINTENANCE
5.1 SERVICE
5.1.1 FLUIDS AND LUBRICANTS
1. Grease:
Use an SAE multipurpose high temperature
grease with extreme pressure (EP) perform-
ance. Also acceptable is an SAE multipur-
pose lithium base grease.
2. Engine Oil:
Use SAE Heavy Duty hydraulic oil for all oper-
ating conditions.
Reservoir capacity: 3 U.S. gallons (11 liters)
3. Your machine can operate at top effi ciency
only if clean lubricants are used. Use clean
containers to handle all lubricants. Store
them in an area protected from dust, moisture
and other contaminants.
5.1.2 GREASING
Use the Maintenance Checklist provided to keep a
record of all scheduled maintenance.
1. Use a hand-held grease gun for all greasing.
2. Wipe grease fi tting with a clean cloth before
greasing, to avoid injecting dirt and grit.
3. Replace and repair broken fi ttings immedi-
ately.
4. If fi ttings will not take grease, remove and
clean thoroughly. Also clean lubricant pas-
sageway. Replace fi ttings if necessary.
5.1.3 SERVICING INTERVALS
The period recommended is based on normal
operating conditions. Severe or unusual condi-
tions may require more frequent lubrication or oil
changes.
8 Hours or Daily
1. Grease the pivot pins.
a. Bucket pivots.
b. Dipper / Boom pivots.
c. Boom pivots.
d. Steering cylinder pivots.
e. Left stabilizer.
Fig. 62 PIVOT PINS
Dipper / Bucket
Boom Swing
Left Stabilizer
a
b
c
d
e
a
b
b
b
c
c
c
d
d
e
e
e
e
Fig. 64 BOOM SWING CYLINDER PIVOT PINS
Fig. 62 PIVOT PINS
Right Stabilizer
Boom
f.
Right Stabilizer.
g. Boom Pivots.
2. Grease the boom swing cylinder pivot
pins.
g g g
f
f
f
f
Fig. 65 CYLINDER RAMS (Typical)
3. Grease the pivot pins.
a. Bucket.
b. Dipper.
c. Boom.
d. Boom swing.
e. Stabilizers.
40 Hours
1. Check oil level in optional reservoir.
Add as required.
Fig. 66 OIL LEVEL
Fig. 67 OIL SCREEN
Fig. 68 OIL DRAIN PLUG
100 Hours
1. Clean optional hydraulic sys-
tem screen.
1000 Hours
1. Change
optional
hydraulic
system oil.
5.1.4 SERVICE RECORD
See Lubrication and Maintenance sections for details of service. Copy this page to continue record.
ACTION CODE
CK
CHECK
CL
CLEAN
G
GREASE
CH
CHANGE
HOURS
SERVICED
BY
MAINTENANCE
8 Hours or Daily
G
Bucket Pivots
G
Dipper / Boom Pivots
G
Boom Pivots
G
Left Stabilizers
G
Right Stabilizers
CL Steering Cylinder Pivots
40 Hours
CK Hydraulic System Oil Level*
100 Hours
CL Hydraulic System Screen*
1000 Hours
CH Hydraulic System Oil*
Annually
CL Machine
* Optional Hydraulic System
5.2.1 HYDRAULIC OIL
Every 1000 operating hours or annually,
whichever comes fi rst, the oil in the optional
hydraulic system should be changed. To
change oil, follow the procedure below:
1. Stop the engine and allow the system to
cool to the touch.
2. Place a large container under the drain
plug. More than one container may be re-
quired since the tank holds 3 U.S. gallons
(11 l.).
3. Remove the drain plug and allow the sys-
tem to drain for 10 minutes.
4. Remove and clean hydraulic screen.
5. Install the drain plug using tefl on tape
or pipe sealant compound and fi ll the
reservoir with a heavy duty hydraulic oil.
System capacity is approximately 3 U.S.
gallons (11 l.). Fill to within 1 inch (25 mm)
from the top of the tank.
6. Start the engine and run for 3 minutes.
Operate all systems to purge the lines of
air and to check for leaks.
7. Check the oil level in the reservoir and top
up as required.
Fig. 70 HYDRAULIC RESERVOIR
5.2.2 BUCKET TEETH
The bucket teeth are designed to be replaced.
They should be checked weekly. They need to
be replaced if bent, broken or worn out.
When replacing, follow this procedure:
1.
Clear the area of bystanders, especially
small children.
2.
Lower dipper / bucket to the ground, place
all controls in neutral, stop engine, set
park brake, remove ignition key and wait
for all moving parts to stop before dis-
mounting.
3.
Remove tooth / teeth that need replacing.
4.
Install replacement tooth and weld in posi-
tion.
Fig. 71 TEETH
Boom and bucket move slowly.
Pump worn out.
Replace pump.
Screen dirty or plugged.
Clean or replace screen.
Low oil fl ow.
Increase tractor RPM.
Flow control set too low.
Open fl ow control to get more
fl ow.
Low oil level.
Check oil level. Add as
required.
Machine jerks when moving.
Screen dirty or plugged.
Clean or replace screen.
Sucking air.
Check fi ttings in hydraulic
system. Tighten all fi ttings to
stop air intake.
Low oil level.
Check oil level. Add as
required.
Control levers do not return
Return springs collapsed.
Check valve return springs.
to neutral.
Replace any that have
collapsed or are not as long as
they should be.
System dirty.
Change oil and clean screen.
Boom does not stay up.
Cylinder seals leaking.
Replace cylinder seals.
6 TROUBLE SHOOTING
The Wallenstein Backhoe is designed to fi t on the back of a small agricultural tractor and is used to dig,
excavate and trench. It is a simple and reliable system that requires minimal maintenance.
In the following section, we have listed many of the problems, causes and solutions to the problems that
you may encounter.
If you encounter a problem that is diffi cult to solve, even after having read through this trouble shooting
section, please call your local distributor or dealer. Before you call, please have this Operator's Manual
from your unit and serial number ready.
PROBLEM
CAUSE
SOLUTION
63" (1600 mm)
79" (2006 mm)
92" (2337 mm)
92" (2337 mm)
Transport Width
40" (1016 mm)
42.5" (1079.5 mm)
42.5 (1079.5 mm)
42.5 (1079.5 mm)
Ground Clearance
10.5" (266.7 mm)
10.5" (266.7 mm)
10.5" (266.7 mm)
10.5" (266.7 mm)
Transport Length
68" (1727 mm)
80" (2032 mm)
81" (2057 mm)
81" (2057 mm)
Transport Weight
575 lb (261 kg)
765 lb (347 kg)
791 lb (359 kg)
980 lb (444.5 kg)
Digging Depth (2 Ft Flat Bottom)
6' 4" (1.9 m)
7' 8" (2.3 m)
9' 4" (2.8 m)
9'4"/11'4" (2.8 m/34.4 m)
Overall Operating Height
92" (2337 mm)
119" (3022 mm)
135" (3429 mm)
135"/152" (3429/3861 mm)
Loading Height (Bucket at 60°)
62" (1575 mm)
80" 2032 mm)
89" (2260 mm)
89"/104" (2260/2642 mm)
Reach from Swing Post
100" (2540 mm)
123" (3124 mm)
141" (3581 mm)
141"/164" (3581/4166 mm)
Bucket Rotation
180°
180°
180°
180°
Swing Arc
180°
180°
180°
180°
Stabilizer Width (Spread)
74" (1880 mm)
89" (2260 mm)
89" (2260 mm)
89" (2260 mm)
Stabilizer Width (Transport)
40" (1016 mm)
42.5" (1079.5 mm)
42.5" (1079.5 mm)
42.5" (1079.5 mm)
Operating Pressure
1800 psi (127 kg/cm2)
2250 psi (158 kg/ cm2)
2250 psi (158 kg/ cm2)
2250 psi (158 kg/ cm2)
Dipper Boom Digging Force
1250 lb (567 kg)
2300 lb (1043 kg)
3200 lb (1052 kg)
3100/2200 lb (1406/998 kg)
Bucket Digging Force
2600 lb (1179 kg)
3800 lb (1724 kg)
3925 lb (1780 kg)
3925 lb (1780 kg)
Boom Lift Capacity
385 lb (175 kg)
925 lb (420 kg)
750 lb (340 kg)
710/580 lb (340/263 kg)
Hydraulic Volume Reg.
5-7 gpm (18.9-26.5 lpm)
5-7 gpm (18.9-26.5 lpm)
5-7 gpm (18.9-26.5 lpm)
5-7 gpm (18.9-26.5 lpm)
Recommended Tractor HP
15-25 HP
22-45 HP
45-100 HP
45-100 HP
Recommended Skid Steer Size
N/A
30-60
30-100
30-100
Bucket Sizes Available
9,12,15,18
9,12,15,18,24
9,12,15,18,25
9,12,15,18,24
Main Boom Cylinder Diameter
2.5" (63.5 mm)
3" (76 mm)
3" (76 mm)
3" (76 mm)
All Other Cylinder Diameters
2.25" (57 mm)
[dipper] 3" (76 mm)
[dipper] 3" (76 mm)
[dipper] 3" (76 mm)
* In Accordance with SAE J1179
7 SPECIFICATIONS
7.1 MECHANICAL
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Fig. 72 MECHANICAL SPECIFICATIONS
7.2 BOLT TORQUE
CHECKING BOLT TORQUE
The tables shown below give correct torque values for various bolts and capscrews. Tighten all bolts to
the torques specifi ed in chart unless otherwise noted. Check tightness of bolts periodically, using bolt
torque chart as a guide. Replace hardware with the same strength bolt.
ENGLISH TORQUE SPECIFICATIONS
METRIC TORQUE SPECIFICATIONS
SAE 2
(N.m) (lb-ft)
Bolt Torque*
Bolt
Diameter
"A"
SAE 5
(N.m) (lb-ft)
SAE 8
(N.m) (lb-ft)
1/4"
5/16"
3/8"
7/16"
1/2"
9/16"
5/8"
3/4"
7/8"
1"
8
13
27
41
61
95
128
225
230
345
6
10
20
30
45
60
95
165
170
225
12
25
45
72
110
155
215
390
570
850
9
19
33
53
80
115
160
290
420
630
17
36
63
100
155
220
305
540
880
1320
12
27
45
75
115
165
220
400
650
970
8.8
(N.m) (lb-ft)
Bolt Torque*
Bolt
Diameter
"A"
10.9
(N.m) (lb-ft)
M3
M4
M5
M6
M8
M10
M12
M14
M16
M20
M24
M30
M36
.5
3
6
10
25
50
90
140
225
435
750
1495
2600
.4
2.2
4
7
18
37
66
103
166
321
553
1103
1917
1.8
4.5
9
15
35
70
125
200
310
610
1050
2100
3675
1.3
3.3
7
11
26
52
92
148
229
450
774
1550
2710
Torque fi gures indicated above are valid for non-greased or non-oiled threads and heads unless oth-
erwise specifi ed. Therefore, do not grease or oil bolts or capscrews unless otherwise specifi ed in this
manual. When using locking elements, increase torque values by 5%.
* Torque value for bolts and capscrews are identifi ed by their head markings.
HYDRAULIC FITTING TORQUE
Tightening Flare Type Tube Fittings *
1. Check fl are and fl are seat for defects
that might cause leakage.
2. Align tube with fi tting before tighten-
ing.
3. Lubricate connection and hand
tighten swivel nut until snug.
4. To prevent twisting the tube(s), use
two wrenches. Place one wrench
on the connector body and with the
second tighten the swivel nut to the
torque shown.
•
The torque values shown are based
on lubricated connections as in
reassembly.
Tube
Nut Size
Torque
Recommened
Size
Across
Value•
Turns To Tighten
OD
Flats
(After Finger
Tightening)
(in.)
(in.)
(N.m)
(lb-ft)
(Flats)
(Turn)
3/16
7/16
8
6
1
1/6
1/4
9/16
12
9
1
1/6
5/16
5/8
16
12
1
1/6
3/8
11/16
24
18
1
1/6
1/2
7/8
46
34
1
1/6
5/8
1
62
46
1
1/6
3/4
1-1/4
102
75
3/4
1/8
7/8
1-3/8
122
90
3/4
1/8
Equipment Safety Guidelines .....................4
General Safety ...........................................3
Hydraulic Safety .........................................9
Maintenance Safety ....................................8
Operating Safety.........................................7
Preparation .................................................6
Safety Signs ...............................................5
Safety Training............................................5
Sign-Off Form ...........................................10
Storage Safety ............................................8
Transport Safety .........................................8
Safety Sign Locations ....................................11
Service and Maintenance ..............................54
Maintenance .............................................61
Service......................................................54
Specifi cations ................................................63
Mechanical ...............................................63
Bolt Torque ...............................................64
Hydraulic Fitting Torque ............................65
Hydraulic Oil - MSDS ................................66
T
Trouble Shooting ...........................................62
A
Assembly .......................................................21
I
Index ..............................................................70
Introduction ......................................................1
O
Operation .......................................................15
Attaching/Unhooking.................................27
Auxiliary Hydraulic System .......................25
Controls ....................................................19
Equipment Matching .................................18
Field Operation .........................................39
Machine Break-In .....................................17
Machine Components...............................22
Machine Preparation & Assembly.............21
Mounting to Skid Steer .............................35
Mounting with Optional Hydraulic Pump...31
Pre-Operation Checklist ...........................17
Side Frame Reinforcing ............................23
Storage .....................................................52
Rear Mounting Frame...............................24
To the New Operator or Owner .................15
Transporting..............................................50
EMB MANUFACTURING INC.
4144 BOOMER LINE
ST. CLEMENTS, ON
N0B 2M0 CANADA
PH: (519) 699-9283
FAX: (519) 699-4146
PRINTED IN CANADA
NUMBER: JANUARY 2011
PART NUMBER: Z97054