Stanley MB656 Operation & User’s Manual
Read Online
Read the Stanley MB656 Operation & User’s Manual online using the built-in PDF viewer.
Text of the manual
© 2014 Stanley Black & Decker, Inc.
New Britain, CT 06053
U.S.A.
29169 3/2017 Ver. 13
USER MANUAL
Safety, Operation and Maintenance
MB656
MOUNTED
HYDRAULIC BREAKER
2 ► MB656 User Manual
DECLARATION OF CONFORMITY
ÜBEREINSTIMMUNGS-ERKLARUNG
DECLARATION DE CONFORMITE CEE
DECLARACION DE CONFORMIDAD
DICHIARAZIONE DI CONFORMITA
Hydraulic Tools
______________________________________________________________________
I, the undersigned:
Ich, der Unterzeichnende:
Je soussigné:
El abajo firmante:
lo sottoscritto:
Weisbeck, Andy
Surname and First names/Familiennname und Vornamen/Nom et prénom/Nombre y apellido/Cognome e nome
hereby declare that the equipment specified hereunder:
bestätige hiermit, daß erklaren Produkt genannten Werk oder Gerät:
déclare que l’équipement visé ci-dessous:
Por la presente declaro que el equipo se especifica a continuación:
Dichiaro che le apparecchiature specificate di seguito:
1.
Category:
Hydraulic Hammer Breaker
Kategorie:
Catégorie:
Categoria:
Categoria:
2.
Make/Marke/Marque/Marca/Marca
Stanley
3.
Type/Typ/Type/Tipo/Tipo:
MB656
4.
Serial number of equipment:
Seriennummer des Geräts:
Numéro de série de l’équipement:
Numero de serie del equipo:
Matricola dell´attrezzatura:
All
5.
Mass/Masse/Masse/Masa/Massa 872 lbs / 396 kg
Has been manufactured in conformity with
Wurde hergestellt in Übereinstimmung mit
Est fabriqué conformément
Ha sido fabricado de acuerdo con
E’ stata costruita in conformitá con
Directive/Standards
Richtlinie/Standards
Directives/Normes
Directriz/Los Normas
Direttiva/Norme
No.
Nr
Numéro
No
n.
Approved body
Prüfung durch
Organisme agréé
Aprobado
Collaudato
EN ISO
EN
Noise Directive
Machinery Directive
12100:2010
982:2008
2000/14/EC:2005
2006/42/EC:2006
Self
Self
Self
Self
6.
Special Provisions:
None
7. Measurements: Measured Sound Power Level 121 LwA
Spezielle Bestimmungen:
Messungen Guaranteed Sound Power Level 125 LwA
Dispositions particulières: Mesures Measured in accordance to Directive 2000/14/EC,
Provisiones especiales: Mediciones
Disposizioni speciali: Misurazioni
8.
Representative in the Union: Patrick Vervier, Stanley Dubuis 17-19, rue Jules Berthonneau-BP 3406 41034 Blois Cedex, France.
Vertreter in der Union/Représentant dans l’union/Representante en la Union/Rappresentante presso l’Unione
Done at/Ort/Fait à/Dado en/Fatto a Stanley Hydraulic Tools, Milwaukie, Oregon USA Date/Datum/le/Fecha/Data
12-19-10
Signature/Unterschrift/Signature/Firma/Firma
Position/Position/Fonction/Cargo/Posizione
Director of Product Development
DECLARATION OF CONFORMITY
MB656 User Manual ◄ 3
SERVICING: This manual contains safety, operation, and routine maintenance instructions. Stanley Hydraulic Tools
recommends that servicing of hydraulic tools, other than routine maintenance, must be performed by an authorized
and certified dealer. Please read the following warning.
For the nearest authorized and certified dealer, call Stanley Hydraulic Tools at the number listed on the back of this
manual and ask for a Customer Service Representative.
WARNING
SERIOUS INJURY OR DEATH COULD RESULT FROM THE IMPROPER REPAIR OR
SERVICE OF THIS TOOL.
REPAIRS AND / OR SERVICE TO THIS TOOL MUST ONLY BE DONE BY AN
AUTHORIZED AND CERTIFIED DEALER.
DECLARATION OF CONFORMITY ..........................................................................................................................2
SAFETY SYMBOLS ..................................................................................................................................................4
SAFETY PRECAUTIONS ..........................................................................................................................................5
TOOL STICKERS & TAGS ........................................................................................................................................8
OPERATION ..............................................................................................................................................................9
TROUBLESHOOTING ............................................................................................................................................15
MAINTENANCE ......................................................................................................................................................16
CHARGING THE ACCUMULATOR .........................................................................................................................17
FLOW CONTROL KIT INSTRUCTIONS .................................................................................................................18
WEAR TOLERANCES ............................................................................................................................................19
PROPER USE & CARE OF TOOL BITS .................................................................................................................20
FLOW TEST PROCEDURES ..................................................................................................................................24
DEFINITIONS ..........................................................................................................................................................26
SPECIFICATIONS ...................................................................................................................................................27
ACCESSORIES.......................................................................................................................................................28
MB656 POWER CELL ILLUSTRATION ..................................................................................................................29
MB656 PARTS LIST ................................................................................................................................................30
HOUSING PARTS LIST AND ILLUSTRATION ........................................................................................................31
MB656 MOUNTING BRACKETS ............................................................................................................................32
TABLE OF CONTENTS
IMPORTANT
To fill out a Product Warranty Validation form, and for information on your warranty,
visit Stanleyhydraulics.com and select the Company tab, Warranty.
(NOTE: The warranty Validation record must be submitted to validate the warranty).
4 ► MB656 User Manual
Always observe safety symbols. They are included for your safety and for the protection of the tool.
LOCAL SAFETY REGULATIONS
Enter any local safety regulations here. Keep these instructions in an area accessible to the operator and
maintenance personnel.
Safety symbols and signal words, as shown below, are used to emphasize all operator, maintenance and repair
actions which, if not strictly followed, could result in a life-threatening situation, bodily injury or damage to equipment.
This is the safety alert symbol. It is used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible
injury or death.
DANGER
This safety alert and signal word indicate an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
WARNING
This safety alert and signal word indicate a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
CAUTION
This safety alert and signal word indicate a potentially hazardous situation
which, if not avoided, could result in death or serious injury.
CAUTION
This signal word indicates a potentially hazardous situation which, if not avoided,
may result in property damage.
NOTICE
This signal word indicates a situation which, if not avoided, will result in damage
to the equipment.
IMPORTANT
This signal word indicates a situation which, if not avoided, may result in damage
to the equipment.
SAFETY SYMBOLS
MB656 User Manual ◄ 5
WARNING
Do not operate the breaker unless the
following safety instructions have been
thoroughly read and understood! Read this
manual before installing, operating or
maintaining this equipment.
• A flying projectile from the breaker, breaker
tool, rock or other material may enter the
operator's compartment and cause serious
or fatal injury to the operator. Personal
protection equipment must be used.
• A flying projectile from the breaker, breaker
tool, rock or other material may cause
serious or fatal injury to bystanders. Never
operate the breaker when bystanders are in
the work area.
• On some machines/carriers, the breaker
can enter the operator's compartment if it
breaks loose and swings toward the
operator. Make sure that suitable impact
shields are used when operating the
breaker with this type of equipment.
• Do not operate the breaker unless all safety
decals described in this manual are in
place. The decals must be inspected
periodically to ensure that all wording is
legible. The decals must be replaced if
illegible. Replacement decals can be
obtained from your authorized Stanley
Distributor.
• When operating the breaker you must use
ear protection, eye protection, and
breathing protection.
Read the Manual
Wear Eye
Protection
Wear Hearing
Protection
Wear Breathing
Protection
WARNING
SAFETY PRECAUTIONS
6 ► MB656 User Manual
Tool operators and maintenance personnel must always
comply with the safety precautions given in this manual
and on the stickers and tags attached to the tool and
hose.
These safety precautions are given for your safety.
Review them carefully before operating the tool and
before performing general maintenance or repairs.
Supervising personnel should develop additional
precautions relating to the specific work area and local
safety regulations. If so, place the added precautions in
the space provided in this manual.
The
MB656
Mounted
Hydraulic
Breaker
will
provide
safe
and
dependable
service
if
operated in accordance
with the instructions given
in this manual. Read and
understand
this
manual
and any stickers and tags
attached to the tool and
hoses before operation.
Failure to do so could
result in personal injury or
equipment damage.
Check the rules and regulations at your location. The
rules might include an employer’s work safety program.
Regulations may identify hazards such as working
around utility supply lines or hazardous slopes.
BE THOROUGHLY TRAINED BEFORE
OPERATING THE UNIT ALONE
•
Operator training must start in an area without
bystanders and use all the controls until he/she can
control the machine fully under the conditions of the
work area.
•
When learning to operate a machine, do so at a slow
pace.
KNOW THE WORK CONDITIONS
•
The operator must know any prohibited uses or
work areas for the machine. For example, excessive
slopes and poor or dangerous terrain conditions
must be avoided.
OBEY SAFETY RULES
•
Operate the breaker in accordance with all laws and
regulations which affect you, your equipment and
the work site.
•
Do not operate the breaker until you have read
this manual and thoroughly understand all safety,
operation and maintenance instructions.
•
The operator must be familiar with all prohibited work
areas such as excessive slopes and dangerous
terrain conditions.
•
Do not operate the breaker until you read the carrier
equipment manual and thoroughly understand all
safety, operation and maintenance instructions.
The word “carrier”, as used in this manual, means a
backhoe or excavator or similar equipment used to
operate the breaker.
•
Ensure
that
all
maintenance
procedures
recommended in this manual are completed before
using the equipment.
•
The operator must not operate the breaker or carrier
if any people are within the area where they may
be injured by flying debris or movement of the
equipment.
•
Know the limits of your equipment.
•
Establish a training program for all operators to
ensure safe operation.
•
Warning: Use of this tool on certain materials during
demolition could generate dust potentially containing
a variety of hazardous substances such as asbestos,
silica or lead. Inhalation of dust containing these or
other hazardous substances could result in serious
injury, cancer or death. Protect yourself and those
around you. Research and understand the materials
you are cutting. Follow correct safety procedures
and comply with all applicable national, state or
provisional health and safety regulations relating to
them, including, if appropriate, arranging for the safe
disposal of the materials by a qualified person.
SAFETY PRECAUTIONS
MB656 User Manual ◄ 7
•
Do not operate the tool unless thoroughly trained or
under the supervision of an instructor.
•
Become familiar with the carrier controls before
operating the carrier and the breaker.
•
When operating the breaker you must use ear
protection, eye protection and breathing protection.
•
While learning to operate the breaker and carrier, do
so at a slow pace. If necessary, set the carrier mode
selector to the slow position.
•
Make sure all controls (levers and pedals) are in the
NEUTRAL position before starting the carrier.
•
While operating the breaker and carrier, keep hands
and feet on the controls at all times.
•
Before leaving the carrier, always lower the boom
and insure the carrier is stable. Never leave the
machine with the engine running. ALWAYS ENGAGE
THE PARKING BRAKE.
•
Stop the engine before attempting to make any
repairs, adjustments or servicing to either the carrier
or the breaker.
•
Do not operate the tool at oil temperatures above
190 °F/88 °C. Operation at higher temperatures
can damage the internal components of the breaker
and carrier and will result in reduced breaker
performance.
•
Do not operate a damaged, leaking, improperly
adjusted or incompletely assembled breaker.
•
Do not modify the breaker in any manner.
•
Use only tool bits supplied by Stanley Hydraulic Tools.
Use of tool bits supplied by another manufacturer
may damage the breaker and will void the warranty.
•
To avoid personal injury or equipment damage, all
breaker repair, maintenance and service must only
be performed by authorized and properly trained
personnel.
•
If you do not understand how to safely operate your
breaker, contact an authorized Stanley Dealer for
assistance.
•
Keep this manual with the breaker.
•
Do not operate this equipment if you are taking
medication which may affect your mental judgement
or physical performance.
•
Do not operate this equipment if you are under the
influence of drugs or alcohol.
SAFETY PRECAUTIONS
8 ► MB656 User Manual
73006
MB656 Decal
72074
Grease Sticker
NITROGEN ONLY
350 PSI
27711
Pressure Spec Sticker—350 psi
74735
CE Specification Plate
74705
Stanley Logo Sticker
47351
Composite Warning Sticker
PN:73006
66219
Guaranteed Sound Power Level
Sticker
66764
Made in USA Sticker
TOOL STICKERS & TAGS
MB656 User Manual ◄ 9
PRE-INSTALLATION INSTRUCTIONS
SKIDSTEER, BACKHOE OR EXCAVATOR
SIZE
Check the Specifications section of this manual to
determine correct carrier size, hydraulic flow and
pressure requirements.
WARNING
If hydraulic pressure, hydraulic back pressure,
hydraulic flow or carrier weight class are exceeded,
the tool warranty is void.
EXISTING EQUIPMENT HYDRAULICS VS.
APPLICATION ATTACHING KITS
Using existing equipment hydraulic auxiliary systems
for operating hydraulic tools could cause problems for
the hydraulic tool and the hydraulic system if not set
up properly. Simply plugging into the hydraulic system
without confirming pressure and flow to the hydraulic
tool is not a good practice. Spare spool valves, dipper
circuits, etc., are just a few examples of easily accessible
hydraulic circuits which could prove to cause problems
for hydraulic tool usage.
Stanley Hydraulic Tools has, for many years, developed
ATTACHING KITS for adapting to existing hydraulic
systems of many popular carriers.
If your equipment does not contain an attaching kit,
ask your Stanley dealer for information, installation and
pricing on a kit which matches your equipment needs.
TEST THE HYDRAULIC SYSTEM
1. Have your Stanley dealer test the carrier hydraulic
system to make sure the system is operating at
the manufacturers specified capacity and pressure
ratings.
2. Be sure the fluid in the hydraulic system is filtered
to at least 10 micro-meters. (Particles found in fluid
should not exceed 10 micro-meters in size.)
3. Check the hydraulic filter. Replace the filter if dirty or
deteriorated.
4. Have your Stanley dealer test the circuit to which
the breaker will be connected to make sure that the
circuit is supplying the specified flow and pressure
rating for the breaker. See the Specifications section
of this manual.
PRE-OPERATION PROCEDURES
NITROGEN CHARGE
The breaker has been properly charged with nitrogen at
the factory and is ready to use.
TOOL BIT LUBRICATION
Grease the top 10 in. / 250 mm of the breaker tool
bit before installing. During operation, the tool can be
greased through the grease fitting. Grease is required.
Make sure the tool bit is against the piston by placing
the tool bit against the ground and then putting down
pressure on the breaker. See the illustrations below.
250 mm/10 in.
Tool Bit
Grease
This Area
of Bit
10 inches/250 mm
Figure 1. Greasing the Top of the Tool Bit
WARNING
Greasing the tool bit without down pressure on the
breaker results in grease filling the space between
the piston and the tool bit. When the breaker is next
activated, the piston will strike the grease at a speed
which will pressurize the grease resulting in seal and
grease zerk failure.
OPERATION
10 ► MB656 User Manual
2. With the carrier at idle and the breaker suspended
in the air or with minimal down pressure, turn
on the breaker to gradually warm up its internal
components.
3. When the hydraulic system and breaker are warm,
proceed with operation.
LONG TERM STORAGE
1. Remove the tool bit. Clean the tool stop and the
lower bushing. Thoroughly coat the surfaces of the
tool stop and the lower bushing with grease.
2. If hoses are attached to the breaker, install plugs
on the hose ends. If hoses are removed from the
breaker, install plugs on the hose ends and install
plugs in the breaker IN and OUT ports.
3. Store the breaker in a vertical position. Do not store
the breaker horizontally for extended periods.
OPERATING A BREAKER
PREPARATION FOR USE
Read the section in this manual titled Pre-Operation
Procedures before operating a breaker. Failure to follow
the preparation instructions can result in severe damage
to the breaker and carrier and void the warranties of
both.
POSITIONING THE CARRIER
SKIDSTEER LOADERS
With the breaker tool in place on the material to be
worked, position the skidsteer loader arms and the
breaker bracket so the breaker is almost vertical and the
front tires of the skidsteer are off of the ground.
Keep lowering the loader arms as the tool penetrates
the work material so the skidsteer weight stays on the
tool. The breaker is more efficient when adequate down
force is applied.
Piston in Down Position
Against Tool Bit
Tool Stop
Lower Bushing
Tool Bit
Tool Bit
Grease Will Fill
This Space
Piston Not Against
Tool Bit Leaving Space
Between the Piston and
Bit
Tool Stop
Lower Bushing
Figure 2. Positioning the Tool Bit with Lubrication
SECURING THE TOOL BIT
1. The tool retainer is shipped installed in the breaker
(see parts illustration).
2. Drive out the tool retainer using a punch and
hammer.
3. Grease the top area of the tool bit as shown in
Figure 1.
4. Install the tool bit making sure the notch is aligned
with the lower body retainer pin hole.
5. Install the tool retainer.
WARNING
Always wear eye protection when installing or
removing the tool retaining pin.
LOW TEMPERATURE WARM-UP
PROCEDURE
1. After starting the carrier, warm-up the hydraulic
system at engine idle until hydraulic lines are warm
to the touch.
OPERATION
MB656 User Manual ◄ 11
Figure 3. Skidsteer Loader
BACKHOES
With the breaker tool in place on the material to be
worked, position the backhoe so the boom is halfway up
(45°) and the dipper holds the breaker almost vertical.
Lower the loader bucket until the weight is off the front
tires.
Apply down pressure.
Figure 4. Backhoe
Apply down force to the boom/dipper until the rear of
the backhoe is raised off the ground. Rear tires and
stabilizers should be off the ground so the total rear
weight of the backhoe is on the breaker tool. The breaker
is more efficient when adequate down force is applied.
EXCAVATORS
With the breaker tool in place on the material to be
worked, position the excavator so the dipper is at
approximately 45° and the breaker is almost vertical.
The tracks of the excavator should be in line with the
boom and the breaker.
Apply down force.
Figure 5. Excavator
POSITIONING THE BREAKER TOOL ON
THE WORK MATERIAL
Position the tool bit near the edge of the work material,
not in the center or far from the edge. Position the tool
6–18 inches (depending on the material) from the edge.
Breaking off smaller pieces of rock or concrete usually
accomplishes more than trying to break larger pieces.
Break near the edge.
Figure 6. Position the Tool Bit
On flat material or rock, the breaker should be vertical
or “curled” back slightly to direct the impact force
downward and toward the backhoe. This directs the
force back toward the edge of the work material. If the
tool is positioned in the center of the work, or too far from
the edge, the energy will be absorbed into the material
without cracking it. Do not run the breaker longer than
15–20 seconds. If breakout does not occur within this
time, move the breaker to another position.
OPERATION
12 ► MB656 User Manual
On flat material such as concrete runways, starting to
break in the middle of the material may cause vibrations
to be transmitted throughout the breaker and excavator
because the material has no place to break to. Always
try to start at a point which will permit the material to
break out.
MAINTAIN DOWN PRESSURE
Maintaining hard contact with the surface of the material
to be broken in addition to maintaining adequate “down
force” is very important. Always keep “down pressure”
or “down force” on the point of the breaker by lifting the
wheels, tracks, or stabilizers slightly above the ground.
This method takes the “slack” out of the bracket and
boom pivots, and reduces the impact on the pivots in
the boom.
The operator needs to be constantly aware of the
amount of down pressure being applied and be able
to adjust it if necessary. Not enough down pressure
results in low production and accelerates wear and tear
on the equipment. Too much down pressure may cause
the breaker housing to violently crash into the broken
material when “break-through” occurs.
In any breaking job, the operator should make every
effort to “follow” the breaker with “down pressure” as the
machine breaks farther into the material. The breaker
should be stopped as soon as “break-through” occurs or
if it is apparent that good solid blows are not occurring.
BREAKING
The operator should note the sound of the blow when
the breaker is running. With experience, the operator
will be able to tell the difference between a good solid
blow and a hollow sounding blow. A hollow blow means
that solid blows are not occurring and breaker should be
repositioned.
Continuous tool penetration usually does not do much
good. If the material does not break with 3–6 inches
of tool penetration, it usually won’t break with full
penetration. The time used for additional penetration
could be better used to strike blows in another place.
Many materials do not respond well to continued
hammering in one place. The breaker tool should be
repositioned on the work each time the tool penetrates
but does not crack the material.
Do not break continuously
in one place.
Figure 7. Breaking
CAUTION
Continuous penetration in the same area for lengthy
periods will create excessive temperatures at the tip
of the tool bit resulting in loss of temper (hardness)
of the bit, mushrooming of the tip of the bit and may
lead to failure of the bit.
Use a “scoring” method of breaking when cracking the
material becomes difficult. This technique involves
striking the rock or concrete at several places along a
line where you want the crack to occur. Most materials
break sooner when struck several places along a line
than when struck repeatedly in one location. On each
line, the breaker tool should be continually repositioned.
Practice determines the best length of time to stay in
one spot (15–20 seconds) and how far to move the
breaker tool.
Do not break continuously
in one place
OPERATION
MB656 User Manual ◄ 13
Always direct the down pressure force in a line toward
the point of tool contact with the work.
Moving rocks with the tool bit is another method of
binding the tool bit. This practice should be avoided as it
may cause tool bit failure.
Rebar reinforced concrete introduces the problem of
concrete chunks being held together by the rebar after
the concrete has been broken. The best approach to
this problem is to use a chisel point tool which permits
cutting the rebar with the breaker. Another method is to
periodically cut the rebar with an oxy-acetylene torch.
BLANK FIRING
To understand “Blank Firing”, the operator needs to be
aware that the tool bit is able to drop down in the lower
body cavity far enough so that the piston cannot strike it
when the tool bit is not in contact with the work surface.
“Blank Firing” occurs whenever the breaker is operating
and the piston is not able to strike the tool bit solidly or not
strike the tool bit at all. “Blank Firing” accelerates wear
and tear on breaker and carrier components and may
result in failure of one or more components. Excessive
“Blank Firing” may be considered equipment abuse and
may result in voiding warranties.
Break-through or difficult surface contact results in
“Blank Firing” when the material being broken fractures
and the tool bit is no longer in “hard contact” with the
material but is still pushed high enough in the lower body
cavity so that the piston can strike it. In this position,
the piston strikes the tool bit and the tool bit, in turn,
is driven against the retaining pins because it is not in
sufficient contact with the material to be broken. The
energy is absorbed by the retaining pins, other breaker
components, and the carrier boom components. “Blank
Firing” of this type can be experienced in trench work
where obtaining striking contact with the work surface is
difficult or the wrong tool bit is used, or in flat rock work
where the operator fails to stop operation of the breaker
when slippage, fracturing or material break-through
occurs.
“Blank Firing” as a result of operator error occurs when
the tool bit is not in contact with the work surface to be
broken and is allowed to drop down in the lower body
cavity so that the piston is not able to strike it. Instead, the
downward movement of the piston will be stopped by an
internal oil cushion located at the bottom of the piston’s
stroke and the energy of the piston will be absorbed by
breaker components and excavator boom components.
“Blank Firing” of this type can be experienced when the
operator fails to stop operation of the breaker when the
material fractures or material break-through occurs, or
during re-positioning of the breaker.
Scoring with the breaker
Figure 8. Scoring with the Breaker
Breaker tool binding can cause erratic breaker operation
and premature wear on the tool shank. Breaker tool
binding is caused by failure to direct the down force in
the direction of the tool bit.
Breaker tool bit binding
Figure 9. Breaker Tool Bit Binding
CAUTION
Do not pry with bit and breaker. The tool bit may
break causing injury.
Excessive side force cocks the tool in its bore, prevents
proper movement and causes premature tool shank and
bushing wear. Since the breaker tool bit must be pushed
up into the breaker to operate, a binding tool prevents
the breaker from operating correctly. Binding also causes
the tool bit and tool bushings to seize and often results
in breakage of one or more breaker components.
OPERATION
14 ► MB656 User Manual
While “Blank Firing” cannot always be avoided, it can be
kept to a minimum by avoiding the above conditions as
much as possible.
UNDERWATER USAGE
Underwater usage of the breaker will cause damage
to internal components. Even if the breaker is partially
submerged, water is introduced to an area between
the tool bit and piston. On the piston down cycle, the
water becomes compressed and damages adjacent
components.
Do not use underwater without supplying air to breaker.
Figure 10. Underwater Restrictions
Do not use underwater without supplying air to breaker
CAUTION
No part of the breaker may be submerged in
water. Underwater usage of the breaker will cause
internal damage to the breaker. Consult Stanley for
modifications and specific warranty coverage if you
have an underwater requirement.
The breaker is equipped with an underwater port on the
side of the breaker. Connect an air line to this port and
supply the required air pressure and flow to the breaker
when using underwater. The following chart shows the
air flow rate and pressure required for various depths of
operation.
Depth/Feet
Pressure/PSI
Air Flow Rate/
cfm
60
53
69
50
44
60
40
35
52
30
27
44
25
22
39
20
18
35
15
13
31
10
9
27
5
4
23
0
0
18
GREASE THE BIT
Grease should be applied to the upper end of the
breaker tool bit each time it is installed. Thereafter, the
tool should be greased at the fitting to reduce wear in the
lower body and bushings of the tool. See Greasing The
Tool Bit in the sections titled Pre-Operation Procedures.
OPERATION
MB656 User Manual ◄ 15
This section describes how to find and resolve problems
users may experience. If a situation occurs that is
not covered, call your Stanley Customer Service
representative for assistance.
PROBLEM
CAUSE
SOLUTION
Breaker will not fire.
Low hydraulic oil level.
Fill reservoir.
No flow to breaker.
Have hydraulic circuit tested by
authorized dealer/distributor per
approved procedure.
Main relief set low.
Internal damage.
Have unit serviced by an authorized
dealer/distributor.
Damaged quick couplers.
Replace.
Breaker runs slowly.
Low hydraulic flow
Have hydraulic circuit tested by an
authorized dealer/distributor per
approved procedure.
Excessive heat build up.
Excessive nitrogen pressure.
Have unit serviced by an authorized
dealer/distributor.
Internal leakage.
Breaker runs erratically.
Low or excessive back pressure.
Have carrier serviced by an authorized
dealer/distributor.
Damaged switch or connection.
Relief set too low.
Internal damage.
Tool binding.
Add grease to tool shank. Do not pry
while operating.
Breaker runs but at reduced
power.
Low accumulator charge.
Have unit serviced by an authorized
dealer/distributor.
Excessive back pressure.
Relief set too low.
Breaker leaks oil around tool bit
and tool bushing.
Lower seals failed.
Have unit serviced by an authorized
dealer/distributor.
Hydraulic system overheats.
Main relief set low.
Have unit serviced by an authorized
dealer/distributor.
Insufficient cooling capability in
hydraulic circuit.
Line/hose size too small.
Excessive back pressure.
If symptoms of poor performance develop, the following
chart can be used as a guide to correct the problem.
When diagnosing faults in operation of the tool, always
check that the hydraulic power source is supplying the
correct hydraulic flow and pressure to the tool as listed in
the table below. Use a flowmeter known to be accurate.
Check the flow with the hydraulic oil temperature at least
80 °F/27 °C.
WARNING
Inspecting the tool or installing parts with the
hydraulic hoses connected can result in severe
personal injury or equipment damage. To prevent
accidental startup, disconnect the hydraulic power
before beginning any inspection or installation task.
TROUBLESHOOTING
16 ► MB656 User Manual
DAILY MAINTENANCE CHECKS
•
Check for loose or missing fasteners. Tighten or
replace as needed.
•
Inspect tool retaining pins and pockets for wear.
•
Check for hydraulic leaks at all fittings and hoses.
Replace any defective hoses.
•
Apply grease to the grease fitting in the lower body
each morning. Grease as needed throughout the
work day.
TOOL STOP AND LOWER BUSHING
Inspect the tool stop and lower bushing for excessive
galling and metal pickup on the tool bit. Also check for
cracks. If cracks are present, the part must be replaced.
The extent of wear of the tool stop and lower bushings
and the tool bit can be checked by moving a NEW tool
bit back and forth and measuring the gap between the
tool bit and the lower bushing. If the gap is more than
.250 in./6 mm, the upper bushing, lower bushing and
tool bit should be replaced. A gap in excess of .250 in./6
mm will cause damage to the piston. Do not just replace
the tool bit or the lower bushing individually as this will
result in premature wear of the replaced component. It is
recommended to replace ALL worn components.
15 inches
Figure 11. Measuring Tool Bit Gap
MAINTENANCE
MB656 User Manual ◄ 17
The tools required to charge the breaker accumulator
are the Charge Hose assembly (505232) and the
Accumulator Tester (28257), which are used with
other Stanley model breakers. When charging the
accumulator, make sure the tools and charge valve is
clean. Dirt can contaminate the charge valve and cause
leakage.
1. Remove the protective plug from the accumulator
charge valve.
2. Hold the chuck end of the tester and turn the gauge
fully counter clockwise to ensure the plunger inside
the chuck is completely retracted.
3. Screw the tester into the breaker charge valve by
turning the chuck. Do not use the gauge for turning
as this will advance the plunger in the chuck. Tighten
the chuck lightly against the breaker charge valve.
4. Turn the gauge clockwise to advance the plunger
until a pressure is indicated on the gauge. Do not
overtighten.
5. If the pressure is correct, unscrew the gauge to
retract the plunger. Then, loosen and remove the
tester from the charge valve. If the pressure is not
correct, proceed to Step 6.
NOTE:
When disengaging the tester a “POP” of nitrogen is
normal.
6. Connect the charge hose assembly to the charging
valve on the tester. Make sure the valve on the
charge hose assembly is closed. Open the valve on
the nitrogen bottle.
7. Very slowly open the valve on the charge hose
assembly and slowly meter the nitrogen into the
breaker charge valve until the tester reads the
correct charge pressure.
8. When the correct pressure is obtained, close the
valve on the charge hose assembly and on the
nitrogen bottle. Unscrew the gauge to retract the
plunger. Loosen and remove the tester from the
charge valve. Before replacing the protective plug,
inspect the plug O-ring. If damaged or deformed,
replace the plug. Apply Loctite™ 242 to plug and
cap.
Main Accumulator
P/N 28257 Tester
P/N 505232 Charge Hose Assy
CHARGE PRESSURE SPECIFICATION
Main Accumulator:
350 PSI +/- 10 PSI
24 BAR +/- .7 BAR
CHARGING THE ACCUMULATOR
18 ► MB656 User Manual
The Flow Control Kit is an option for Skid Steer Models.
The Flow Control Kit regulates the flow from the skid
steer hydraulics to the breaker to prevent over-speeding
of the breaker. Follow the instructions below to install
the kit.
•
Install the flow control block between the breaker and
the loader’s hydraulics using the 7/16 in. capscrews,
washers, and nuts provided. (Torque to 41 ft-lbs)
•
Connect the hoses.
The parts list for the Flow Control Kit is shown below.
HOSE ROUTINGS
R = Return. Route to the breaker OUT port.
S = Supply. Route to the breaker IN port.
P = Pressure. Route to the tractor’s hydraulic pressure.
T = Tank. Route to the tractor’s hydraulic reservoir.
4
R
S
P
T
3
5
8
2
1
6
7
ITEM
NO.
PART
NO.
QTY
DESCRIPTION
1
34621
1
FLOW CONTROL BLOCK
2
34839
6
WASHER
3
371516
3
NYLOCK NUT
4
02773
4
ADAPTER
5
58653
1
ORIFICE LOCATED UNDER
FITTING DESIGNATED AS "S"
6
58652
3
CAPSCREW
7
58654
2
HOSE
8
58655
2
HOSE
Figure 13. Flow Control Kit
FLOW CONTROL KIT INSTRUCTIONS
MB656 User Manual ◄ 19
NEW
REJECT LIMIT
LOWER BUSHING (ITEM 48)
3.015 in. / 76.6 mm
3.130 in. / 79.5 mm
TOOL STOP (ITEM 42)
A) 3.015 in. / 76.6 mm
Inside Diameter
A) 3.130 in. / 79.5 mm
Inside Diameter
B) .60 in. / 15.2 mm
Depth
B) .48 in. / 12 mm Depth
RETAINER PIN (ITEM 20)
2.118 in. / 53.8 mm
Outside Diameter
2.033 in. / 51.6 mm
Outside Diameter
RETAINER PIN (ITEM 43)
.75 in. / 19 mm
Outside Diameter
.67 in. / 17 mm
Outside Diameter
PISTON
2.595 in. / 66 mm Depth
2.905 in. / 73.8 mm
FIGURE 14. LOWER BUSHING
FIGURE 16. RETAINER PIN
FIGURE 15. TOOL STOP
Wear Areas
C=Measure at 1.2 in./30 mm
A
B
C
FIGURE 17. PISTON
New Part
Wear Limit
WEAR TOLERANCES
20 ► MB656 User Manual
Worn-out retainer pin(s) will cause uneven loading on
the pin(s) themselves, causing failure of the tool or re-
tainer pin(s). This will also cause excessive wear to the
front bushing(s).
METAL-TO-METAL CONTACT
Extreme caution should be used to avoid scratches or
gouges on the surface of the tool. These areas create a
stress concentration metal-to-metal contact point, thus
weakening the tool.
Another form of metal-to-metal contact is galling, which
usually occurs from the lack of lubrication. Special care
should be taken to keep the tool shank lubricated every
two (2) to three (3) hours.
Steel failures that were caused by surface damage take
two main forms. The simplest form is caused by deep
scratches on working steel surface. The broken surface
has a shell pattern around the starting point of failure,
similar to the one in the fatigue failure. The other parts of
the broken surface are brittle. These failures work slowly
through the steel until it suddenly parts completely.
The second form of failure caused by surface damage
occurs when there are deep scratches on working steel
surface and there was also excessive bending stress.
The broken surface also shows the shell pattern, but the
other parts of the broken surface are brittle and usually
have a “lip” like that in a stress failure.
Figure 19. Metal-to-Metal Contact Examples
Tool bits are made and heat treated to specification.
Tool bits, however well made, are wear parts, and are
used in the most destructive applications. Even when
the hydraulic breaker is used properly, and the operator
is an experienced one, a tool bit may become damaged.
When a tool bit has been damaged, it is useful to de-
termine the cause immediately in order to prevent the
damage from occurring again.
All Stanley tool bits are machined and hardened for
maximum performance. Care must be taken to maintain
the tools original condition for optimum productivity and
life expectancy. It is not uncommon for an operator who
is unfamiliar with using a hammer to break a point. This
is part of the learning experience.
Listed below are several methods to determine tool fail-
ure and will quickly aid in warranty determination.
TOOL FAILURE NOT COVERED
UNDER WARRANTY
BLANK FIRING OR FREE RUNNING
This occurs when the tool is not in proper contact with
the work, thus causing the energy produced by the ham-
mer to be concentrated on the tool retainer(s) and the
retainer slot(s) on the tool itself. Caution should be used
to prevent the hammer from sliding off slanted surfaces
or when breaking through thin material.
The illustration below is typical of the kind of breakage
that occurs from excessive blank firing.
Figure 18. Excessive Blank Firing Breakage
WORN-OUT FRONT BUSHING(S) OR
RETAINER PIN(S)
Worn-out front bushing(s) will cause the tool to become
misaligned inside the hammer. This misalignment will
cause uneven contact between the piston and tool, thus
causing stress to concentrate on one particular area of
the tool. This can also cause the tool to bind inside the
hammer. Call your dealer for acceptable wear allow-
ances.
PROPER USE & CARE OF TOOL BITS
MB656 User Manual ◄ 21
In its most extreme forms, the combination of surface
damage and severe bending can quickly break even the
best working steels.
The illustrations below show examples of severe stress
breaks.
Figure 20. Severe Stress Breaks
PRYING
This is the most common cause of tool failure. Even
when there is no surface damage, the stress from pry-
ing can easily break a working steel. This kind of failure
generally results from any type of side pressure such as
an incorrect breaking angle or from using the tool to re-
position material. The tool should not be used as a pivot
point when repositioning the carrier. The power gener-
ated by the carrier will far exceed the strength of the tool.
Figure 21. Prying Damage Example
Similar failures can also occur when the steel is used
with extreme down pressure, and the steel repeated-
ly slips off the work at an angle, or the material, itself
moves from under the working steel.
Figure 22. Extreme Down Pressure Breakage
As the next illustration shows, fatigue failures take many
forms, but they all exhibit similar features. Generally, the
broken surface is brittle and has a “lip” like that in the
bending failure, even though, in some cases, the lip has
been broken.
Figure 23. Fatigue Failures
CORROSION
Tools should be greased and stored out of the weather.
Corrosion tends to accelerate the fatigue fractures of the
tool.
MUSHROOMING
Driving the tool into a hard material for a long period of
time generates an intense heat, indicated by a blue tone
just above the point. This will soften the steel and cause
the point to fold over or mushroom the end of the tool.
Avoid hammering in one location for too long. If material
does not break after a short period (approximately 15 to
20 seconds), reposition the tool.
Figure 24. Mushrooming
If the overheated steel is suddenly cooled by being
dipped in standing water, for example, the metal will
harden and become brittle. These are some examples
of failure caused by temper changes occurring on the
job.
PROPER USE & CARE OF TOOL BITS
22 ► MB656 User Manual
TOOL FAILURE COVERED UNDER
WARRANTY
INTERNAL MATERIAL FLAW
This failure occurs when a foreign material is rolled into
the steel during the manufacturing process, causing an
imperfection in the internal material flaw grain. The re-
sult is an inherent weakness in the tool shank and even-
tual breakage.
The fatigue failure is started by the defects within the tool
bit. The broken surface exhibits a shell pattern around
the starting point of failure, like that in the fatigue failure.
The other parts of the broken surface are brittle.
This is the only kind of tool bit failure that is always
covered under warranty.
Figure 25. Internal Material Flaw
As a rule, working steel failures can be diagnosed by
looking at the break itself, and at the place on the steel
where the break occurred. Discoloration, like “rainbow”
effects or blue bands, is the result of extreme heat.
Look for surface cracks, galling, or gouge marks. Breaks
that start as surface damage have a “sea shell” pattern,
with the damaged spot at the center. A large “sea shell”
indicates a slow growing break; a small one indicates
one compounded by side stress.
Stress failures start small, and spread into the center
of the steel. In a stress failure, the coarser the grain,
the greater the stress was, and the more rapid was the
failure.
• Failures in this area are usually the result
of blank firing, worn bushing(s), worn re-
tainer pin(s) or the lack of lubrication.
• Failures in this area are usually the result
of worn retainer pin(s) or blank firing.
• Failures in this area are usually the result
of prying, metal-to-metal contact or corro-
sion. Prying failures often exhibit a shell-
like formation near the edge of the steel
diameter where the break began, and a
“tail” opposite that where the remaining
steel bent and tore.
• Failures in this area are usually the result
of heat build-up, mushrooming, or improp-
er contact with the work.
Figure 26. Diagram of Tool Bit Failures
PROPER USE & CARE OF TOOL BITS
MB656 User Manual ◄ 23
Stanley Breakers are available with several different types of tool bits. The most common are the moil, chisel and
the blunt. Each of these working steels has its own purpose as described below:
To obtain the maximum production from the breaker, it is important to select the proper working steel. Consult your
Stanley representative for assistance in selecting the proper working steel for your application.
MOIL
This is by far the most popular
working steel. It is a general
purpose point used to break
anything from concrete to hard
rock. It’s pencil-type point is
used to fracture the material.
This
tool
is
best
where
penetration speed is important.
CHISEL
This style of point is used
generally used for trench work,
where a controlled break is
required, and for rock breaking
on materials with a definite line
of cleavage. A chisel bit also
works well in softer concretes
where a moil might penetrate
quickly, but not cause a fracture
line.
BLUNT
This flat type of point is used to
break softer material such as
coal or shale. A moil or chisel
will tend to punch holes in this
type of material, where a flat
blunt will shatter the material.
It is also useful when breaking
irregularly
shaped
material
where its broad tip makes it
easier to position.
PROPER USE & CARE OF TOOL BITS
24 ► MB656 User Manual
The correct performance of this procedure will verify if
the auxiliary circuit of the carrier is adequate to properly
operate a Stanley attachment.
This procedure is generic in form. It is the end users
responsibility to ensure that this procedure will work with
his specific type of equipment.
If an adequate flow meter is not available contact your
Stanley Hydraulic Distributor for assistance.
TEST PROCEDURE
1. With the auxiliary circuit (or kit) completely installed
connect the flow meter between the tool inlet and
outlet hoses.
NOTE:
Always use the hoses that are supplied for the
attachment and make sure the machine hydraulic
oil is between 90 to 120 °F. This will assure correct
readings and adjustments.
2. With the machine setting at the mode that’s going to
be used to operate the attachment record the GPM
_____.
Locate the correct flow for the attachment in the
manual under the specification section. Adjust the
machine to the correct GPM.
NOTE:
If possible, always set the machine to the highest
GPM output mode. This will prevent the operator
from over flowing the attachments.
3. Once the correct GPM flow is achieved fully open
the restrictor on the flow meter.
4. With the machine in the attachment mode set
in step 2, record the back pressure. At this point,
the pressure reading on the pressure gauge is the
back pressure in the circuit. This pressure must not
exceed 200 psi/13.5 bar.
Excessive back pressure will slow the attachments
operation and lead to premature seal failures and
over heating.
Record the back-pressure
psi.
5. Close the restrictor valve on the flow meter until
the attachment relief starts to crack or open. The
relief valve opens when the flow rate (GPM),
indicated on the flow meter begins to decline rapidly.
Locate the tools operating system relief pressure
in the specification section in the manual. Adjust
attachment relief to specification.
NOTE:
The relief valve pressure must be greater than the
operating pressure of the attachment and three
times the back pressure. Never use the relief valve
to control the flow rate in the circuit. Cracking
pressure means the loss of 4 or more GPM.
Record the relief cracking pressure
psi.
Example:
Operation pressure of a breaker is 2700 psi. Back
pressure is 150 psi. A good rule to follow when setting
the relief is to multiply the back pressure by 3, then add
this number to the operation pressure of the attachment.
Operating Pressure
2700 psi
Back-pressure
450 psi
Operating pressure of the tool
3150 psi
The relief valve setting must be greater than the
estimated operating pressure of the tool. If the setting
is lower, damage to the circuit may occur. Excess heat
will be generated in the circuit which will damage the
attachment and carrier.
FLOW TEST PROCEDURES
MB656 User Manual ◄ 25
HEAT LOAD TEST
With the installation kit properly installed and adjusted
per the above procedure, conduct the heat load test as
follows.
1. Connect the flow meter between the tool inlet and
outlet hoses.
2. With the carrier set in the attachment mode,
restrict the flow meter until a pressure of 1000 psi
is achieved. This pressure must be maintained
throughout the heat test.
NOTE:
Closing of the restrictor may be required as the
temperature increases.
Monitor the oil temperature from the flow meter until
no change is noted. Record the time required for oil to
stabilize. Record the surrounding temperature (ambient
temperature). Record the time required to stabilize
minutes.
Record the stabilized oil temperature
°F.
Record the ambient temperature
°F.
The “heat rise” is calculated as the stabilized temperature
minus the ambient temperature.
Example:
Stabilized Temperature
160°
Ambient Temperature
-80°
Heat Rise
80°
The normal operating temperature range of this circuit
will be the typical ambient temperature range for the
geographical area plus the heat rise calculated above.
Ensure that the operating temperature range is lower
than 180° for optimum operation of the attachment.
TROUBLESHOOTING
If adequate pump flow is available from the carrier
pump(s), but is not getting to the attachment, consult
your service representative and review the following:
3. Attachment valve(s) are not actuating. Review all
electrical connections that are part of the attachment
kit.
4. Ensure proper voltage to the valve(s).
5. Ensure the REG port of the valve is not blocked.
6. Check to make sure the carriers main relief is set
to the manufacturers recommendation and that this
value is equal or greater than the attachment circuit
relief.
7. If the valve will not turn off, check the drain (tank)
line of the valve to ensure that the pressure is 50
psi or less.
FLOW TEST PROCEDURES
26 ► MB656 User Manual
Tool:
The hydraulic attachment that the auxiliary circuit is intended to power. These
may include hydraulic breakers, compactors, shears, etc.
Operating Pressure:
That pressure at which the tool will naturally operate without influence of outside
pressure relief mechanisms. This pressure is an operating characteristic of the
tool and cannot be altered by the end user without changing the tool design.
Relief Pressure:
The relief pressure is that pressure at which the circuit will dump fluid in order
to protect itself from damage.
Back Pressure:
The pressure at the tool’s connection to the return circuit of the carrier.
Flow Meter:
Instrument for testing the operating characteristics of a hydraulic circuit. The
data usually available from this device are pressure (psi/bar), flow (gpm/lpm)
and temperature (°F/°C).
Restrictor Valve:
A valve on the flow meter which allows the user to simulate an operating tool
by adding a pressure load (through restriction) to the circuit. This feature is
used to evaluate relief settings and flow ratings at pressure.
V60/V65/V100 Valves:
A priority flow control valve manufactured by Stanley Hydraulic Tools. Allows
for optimum operation of any attachment by providing the proper amount of
flow for operation of the tool the “priority” aspect allows the attachment to
function properly if another control function is activated.
Inlet Flow:
The hydraulic oil supplied to the IN port of the tool or valve.
Regulated Flow:
The flow of oil supplied to the tool by the V60/V100 valve.
By-Pass Flow:
The oil flow that is supplied by the carriers pump, but not used in the operation
of the attachment. By-pass flow equals inlet flow (to the valve) minus the
regulated flow.
Pressure Line:
The hydraulic line(s) that supply pressurized oil from the pump to the valve or
tool.
Return Line:
The hydraulic line that connects the OUT port of the tool to the tank circuit of
the carrier.
Cracking Pressure:
The pressure at which the relief valve starts to open. Can be seen by a drop in
the flow rate as shown by the flow meter.
Full Open Pressure:
The pressure at which the relief valve is completely open dumping all system
flow to the tank.
Ambient Air Temperature:
The temperature of the outside air.
Stabilized Temperature:
The temperature at which the carrier hydraulic system temperature will stop
rising during testing or operation.
DEFINITIONS
MB656 User Manual ◄ 27
DIMENSIONS AND WEIGHTS
Weight w/Tool Bit, & Mounting Bracket .................................................................................................872 lbs/396 kg
Length w/Tool Bit & Mounting Bracket .............................................................................................66.5 in./1689 mm
Tool Working Length .............................................................................................................................18 in./457 mm
Tool Diameter ...........................................................................................................................................3 in./76 mm
Hydraulic Pressure (working) ......................................................................................... 1700–1900 psi/117–131 bar
Flow Range
Minimum ...........................................................................................................................................16 gpm/60 lpm
Maximum ..........................................................................................................................................24 gpm/91 lpm
System Relief (min. cracking) ...........................................................................................................2500 psi/172 bar
Return Line Pressure (max.) ................................................................................................................350 psi/24 bar
Operating Oil Temperature (max.) .......................................................................................................... 190 °F/88 °C
Adapter Fitting Size .............................................................................................................................-12 SAE O-ring
Recommended Min. Hose ID ............................................................................................................................3/4 in.
Blows Per Minute......................................................................................................................... 600 min./1000 max.
Impact Energy Class .......................................................................................................................... 875 ft lb/1200 J
Sound Power Level ....................................................................................................................................... 121 dBA
Carrier Size (Skidsteer) .............................................................................................12000-14400 lb / 5448-6538 kg
Carrier Size (Mini Excavator).......................................................................................9100-20000 lb / 4131-9000 kg
Carrier Size (Backhoe) ................................................................................................9100-20000 lb / 4131-9000 kg
TORQUE TABLE
Item No.
Illustration
Description
Apply
Ft/Lb
Nm
46
Power Cell
Hollow Hex Plug -12 SAE
Loctite™ 242
150
203
32
Power Cell
Tie Rod Nut
Kopr Kote™
650
881
6
Power Cell
Charge Valve
Loctite™ 242
80
108
13
Power Cell
Capscrew
Loctite™ 242
85
115
60
Housing
Capscrew
Kopr Kote™
455
617
58
Housing
Nut
Kopr Kote ™
455
617
11
Power Cell
Accumulator Cap
Anti-Seize
200
271
NOTES FOR ITEM 30 ASSEMBLY:
•
Tighten in a cross pattern.
•
Thread into nut by hand.
•
Thread tie rod into nut by hand.
•
Use Loctite™ to prevent plug from falling out. If plug falls out, the housing will fill with grease. The power cell
must be removed to repair.
NOTE: Weights, dimensions and operating specifications listed on this sheet are subject to change
without notice. Where specifications are critical to your application, please consult the dealer.
SPECIFICATIONS
28 ► MB656 User Manual
Description
Part No.
Tool Bits
Conical...............................................................................................................................................................28123
Blunt ..................................................................................................................................................................28126
Chisel, Line-cut ..................................................................................................................................................28124
Chisel, Cross-cut ...............................................................................................................................................28125
Tamping Pad Assy. ............................................................................................................................................18942
Miscellaneous
Attaching Kits.......................................................................................................................................Consult Dealer
Adapter Assembly..............................................................................................................................................33300
Charge Hose Assembly (Includes Valve and Hose for Nitrogen Tank & Charge Valve Connections) .............505232
Charge Kit Assembly (Includes P/N 505232, 28257 and 372047 Charge Kit Box) ...........................................34892
Accumulator Tester ............................................................................................................................................28257
Service Kit (For Rebuild MB556, 656, 856, 956, 10) .........................................................................................40373
Hose Guard Kit, 20 degree, Bolt on Skidsteer...................................................................................................59096
Conversion Kit to Adapt Breaker to Skidsteer ...................................................................................................56599
ACCESSORIES
30 ► MB656 User Manual
ITEM
PART
NO.
QTY
DESCRIPTION
1
60730
1
POWER CELL BLANK FIRE
2
27942
1
MAIN BODY ASSY (INCL 3–11)
3
1
MAIN BODY (SEE ITEM 2)
4
32165
1
CHARGE VALVE ASSY (INCL 5–7)
5
01605
1
O-RING, SEE ITEM 4
6
1
SEE ITEM 4
7
1
SEE ITEM 4
8
24502
1
VALVE SLEEVE
9
08104
1
HOLLOW HEX PLUG -6 SAE
10
24112
1
O-RING
11
56553
1
PLUG
12
00354
1
O-RING*
13
00701
6
CAPSCREW
14
16549
1
DOWEL PIN
15
22398
1
O-RING*
16
24486
1
PISTON SLEEVE
18
24487
1
SEAL CARRIER
19
24495
1
SPOOL
20
24500
1
TOOL RETAINER PIN
21
24501
1
VALVE CAP
22
24508
4
O-RING*
23
24511
1
O-RING*
24
24512
1
O-RING*
25
24518
1
O-RING*
26
27646
1
SYMMETRICAL SEAL*
27
27647
1
ROD WIPER*
28
27648
1
ROD SEAL*
29
27649
1
MODIFIED QUAD RING*
30
28128
4
TIE ROD
31
28129
4
LOCK PLATE
32
28130
4
TIE ROD NUT
33
28222
4
CAP, DIP MOLDED VINYL
34
24516
4
TIE ROD NUT
35
34371
1
PISTON
36
350818
1
O-RING*
37
60711
1
LOWER BODY ASSY (INCL 38–48)
ITEM
PART
NO.
QTY
DESCRIPTION
38
24492
1
LOWER BODY
39
09728
2
PIN RETAINER SPRING
40
09764
2
PIN RETAINER
41
22980
2
RETAINER SPRING
42
24484
1
TOOL STOP
43
24494
2
RETAINER PIN
44
65039
4
ROLL PIN
45
350041
2
PLUG
46
350223
3
PLUG
47
372003
1
GREASE FITTING, 1/8 NPT
48
60715
1
LOWER BUSHING
29391
1
SEAL KIT (* DENOTES PART IN SEAL
KIT)
MB656 PARTS LIST
MB656 User Manual ◄ 31
HOUSING PARTS LIST & ILLUSTRATION
ITEM
PART #
QTY
DESCRIPTION
1
02112
1
ADAPTER 0507-12-12
2
02773
1
ADAPTER 12 F50X
3
17559
16
WASHER 7/8" I.D.
4
22181
8
NYLOCK NUT 7/8-9UNC
5
24491
1
UPPER BUMPER
6
27711
1
PRESSURE SPEC STICKER -
350 PSI
9
30949
8
HHCS 7/8-9UNC X 3.000
11
47351
1
DECAL, COMPOSITE WARNING
13
51255
1
LOWER BUMPER
ITEM
PART #
QTY
DESCRIPTION
14
51264
1
HOUSING WELDMENT
15
60730
1
POWERCELL
BLANK
FIRE
MB656
16
66219
1
GUARANTEED SOUND POWER
LEVEL
17
66764
1
DECAL, USA ORIGIN 3"
18
72074
1
DECAL, GREASE
19
73006
2
DECAL, MB656
20
74705
2
DECAL, "STANLEY" 11 INCH
21
74735
1
DECAL, CE MB6560
22
28125
1
CROSS CUT CHISEL TOOL BIT
1
2
3
4
6
9
11
13
14
16 17
18
19
20
21
3
20
5
15
22
32 ► MB656 User Manual
Wain Roy Mounting Bracket
P/N 39056 (MB65609)
14" Pin Centers Mounting Bracket
P/N 30913 (MB65607)
XChange Adapter
P/N 49309 (MB656XC)
Skidsteer Mounting Bracket
P/N 56535
Elbow
P/N 05967
Coupler
P/N 40092
40093
Adapter
P/N 02773
MB656 MOUNTING BRACKETS
Stanley Hydraulic Tools
3810 SE Naef Road
Milwaukie, Oregon 97267
503-659-5660 / Fax 503-652-1780
www.stanleyhydraulics.com