DeVilbiss QS-5001 Service Bulletin

tions and SAFETY PRECAUTIONS before using this equipment. Retain for future reference. QS-5001 AIR MOTOR DRIVE DESCRIPTION The QS-5001 air motor covered in this service bulletin is designed to drive paint agitators when connected to a source of clean, dry, air pressure. Maximum air input 100 PSI. QS-5001 standard duty air motor drive, 1/4 h.p., 15:1 ratio, 20 to120 RPM for pres- sure tank agitator. Includes air adjusting valve with necessary hose and fittings for hookup to tank regulator. Overall height 8", width 7-3/4". High pressure can cause serious injury. Pressure is maintained in a pressure tank after the system has been shut down. Before attempting removal of fill plug or cover, relieve tank pressure. Pressure Relief Procedure 1. Turn off the main air supply to the tank. 2. Close air inlet valve located on tank air manifold. 3. Bleed off air in the tank by turning the relief valve handle counter- clockwise. Wait until all the air has escaped through the valve before removing the pressure tank cover or fill plug. 4. Leave the air relief valve open until you have reinstalled the cover or fill plug. INSTALLATION QS-5001 Installation onto Pressure Tank with Agitator. (Refer to Figure 1.) 1. Place support (12) over agitator bear- ing housing in tank lid and tighten in place. Tighten setscrew (14) in either screw hole. 2. Set air motor drive on support (12) so that gear box shaft (35) engages agitator shaft. Tighten cap screw (13). 3. For single regulation proceed as fol- lows: a. Remove air inlet valve from regula- tor on tank and install service tee (1) in regulator. b. Reinstall air inlet valve in service tee (1). c. Install nipple (2) in service tee (1). Install hose assembly (3) between nipple and air adjusting valve (4) on air motor. 4. For double regulation proceed as fol- lows: a. Remove plug from main line port of lower regulator and install nipple(2). b. Install hose assembly (3) between nipple (2) and air adjusting valve (4) on air motor. OPERATION Open valve to main air line; then slowly open air adjusting valve until agitator turns. To extend air motor life, adjust air pressure setting to run motor at about one revolution per second. The agitator should be run continuously while using the tank. PREVENTIVE MAINTENANCE Air Motor Lubrication Failure to properly lubricate the air motor will result in premature motor failure and will void warranty. Lubricate air motor daily by adding 4 or 5 drops of SAE 10 weight oil into air inlet fitting. Periodically - Remove air adjusting valve and air strainer and flush motor with a clean suitable solvent. Remove trapped particles from screen in air inlet and clean air strainer felt. Air Motor Gear Box Lubrication Every 2 Days - Remove oil fill plug and check oil level. If oil level is low, add 140-weight SAE Gear Oil or a high quality worm gear lubricant. Replace pipe plug and tighten to 20 foot-pounds (27 N.m) of torque. Note Gear box oil is most easily drained just after motor opera- tion, while oil is still warm. Note Do not overfill. Overfilling may cause oil to leak out of vent cap on top of gear box. Approx. 1/8" Gap (top of oil level to bottom of fill hole)

SAFETY PRECAUTIONS This manual contains important information that all users should know and understand before using the equipment. This informa- tion relates to USER SAFETY and PREVENTING EQUIPMENT PROBLEMS. To help you recognize this information, we use the following terms to draw your attention to certain equipment labels and portions of this Service Bulletin. Please pay special attention to any label or information that is highlighted by one of these terms: HAZARD CAUSE SAFEGUARDS Fire Solvents and coatings can be 1. Adequate exhaust must be provided to highly flammable or combust- keep the air free of accumulations of ible, especially when sprayed. flammable vapors. 2. Smoking must never be allowed in the spray area. 3. Fire extinguishing equipment must be present in the spray area. Explosion Hazard - Making changes to pressure 1. Never drill into, weld or modify tank in Pressure Tank Rupture tank will weaken it. any way. Carefully follow all instructions for motor drive installation. 2. Do not adjust, remove, or tamper with the safety valve. If replacement is nec- essary, use the same type and rating of valve. Explosion Hazard - Halogenated hydrocarbon solvents - Aluminum is widely used in spray application Incompatible Materials for example: methylene chloride and equipment - such as material pumps, cups, 1,1,1, - Trichloroethane are not regulators, valves, etc. Check all equipment chemically compatible with the items before use and make sure they can be aluminum that might be used in many used safely with these solvents. Read the system components. The chemical label or data sheet for the material you in- reaction caused by these solvents tend to spray. If in doubt as to whether or reacting with aluminum can become not a coating or cleaning material is com- violent and lead to an equipment patible, contact your material supplier. Any explosion. other type of solvent may be used with alu- minum equipment. Note Information that you should pay special attention to. Important information to alert you to a situation that might cause serious injury if instructions are not followed. Important information that tells how to prevent damage to equipment, or how to avoid a situation that might cause minor injury. The following hazards may occur during the normal use of this equipment. Please read the following chart. CA PROP 65 PROP 65 WARNING WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

After first 250 hours of operation, remove gear box and drain gear oil. Refill gear box with 140-weight SAE Gear Oil or a high quality worm gear lubricant. Replace pipe plug and tighten to 20 foot-pounds (27 N.m) of torque. 6 Months or 2500 Operating Hours - Replace gear oil according to instructions above. Replace gear oil more often if environment causes oil to become con- taminated during use. REPLACEMENT OF PARTS Removal of Air Motor and Gear Box (Refer to Figure 1 - typical assembly.) 1. Follow pressure relief procedure (Pg. 1) before removing or loosening any components. 2. Turn off valve to main air supply and disconnect air adjusting valve (4) at nipple (2). 3. Loosen upper cap screw (13) and remove air motor and gear box assembly from support (12). Air Motor (Refer to Figure 2.) Holes must be drilled for new dowel pins (21) after assembling front plate (26) on new body (25) for alignment of parts. Do not pry front plate (26) or end plate (20) from air motor body (25) with a screw- driver; this will dent the surface of the body and plates, causing leaks. A puller tool should be used to remove the plate from the motor body while maintaining the position of the shaft. Always install two new gaskets (22) when reassembling air motor. Assemble the end plates to the body using an arbor press with a pusher acting on both races of the bearing while rigidly supporting the opposite (drive) end of the shaft. Gear Box (Refer to Figure 3.) 1. Remove oil fill plug (37) or cover plate (33) and drain gear box lubricant. 2. Remove set screws (40) and gear box (16, Figure 1) from air motor (15, Figure 1). 3. Disassemble gear box per exploded view, Figure 3. Discard gaskets (36 and 41). Do not remove oil seal (39) unless leakage or seal damage is indicated. 4. If oil seal (39) was removed, inspect seal seating bore in housing (38). Remove any burrs or contaminants from seal seating bore. Burrs or con- taminants could distort new oil seal during installation. 5. Inspect gear and shaft assembly (35) for wear grooves, burrs, or con- tamination of seal seating area. If seal seating area is damaged, shaft must be repaired or replaced. 6. Inspect all other parts for wear spots, chipping, or other damage. Replace damaged or worn parts. 7. If oil seal (39) is being replaced, inspect new seal for damage before installing. Use arbor press to install seal. Press fixture diameter must be close fit with gear box bore diameter to avoid damage to seal. Install with inner casing and sealing lip toward bottom of bore. Drive seal squarely into bore to avoid warping. Check that seal is fully seated all around at bottom of bore. 8. Reassemble gear box per exploded view. Install new gaskets (36 and 41). Just prior to assembling gear box with air motor, apply a small dab of thread locking compound (30) to threads of set screws (40). Connect motor and gear box and torque set screws (40) to 60 inch-pounds (6,8 N.m), minimum. Refill gear box per gear box lubrication instructions.

FIGURE 1 GEAR DRIVE AIR MOTOR QS-5001 (STANDARD DUTY) Oil Fill 16 See Figure 3 for Gear Box Assembly 7 10 9 8 8 6 4 3 5 2 11 13 12 15 See Figure 2 for Air Motor. 14 1 Ref Replacement Ind. Parts No. Part No. Description Req'd. 1 --- Service Tee 1/4" 1 Galvanized Purchase Locally 2 H-2008 Nipple 1/4" NPS(M) 2 x 1/4" NPT (M) 3 HA-5863 Hose Assembly 1-1/2 ft. 1 4 HAV-500 Air Adjusting Valve 1 1/4" NPS(M) x 1/4" NPS(F) 5 --- Street Elbow 1 1/4"(M) x 1/4"(F)NPT Purchase Locally 6 350-401 Air Strainer Assembly 1 7 --- Strainer Cap 1 *8 --- Screen 2 *•9 --- Felt 1 10 --- Strainer Body 1 11 32243-133 Washer 1 12 QS-70-2 Support 1 13 Hex Head Cap Screw 3/8"-16 x 2" 1 Purchase Locally 14 --- Square Head Set Screw 1/4-20 x 3/8" Purchase Locally 15 --- Air Motor (Figure 2) REF 16 --- Gear Box (Figure 3) REF • Included in KK-5001-1 Air Motor Repair Kit (See Pg. 5 for additional items provided in kit.) *Ref. No. (8) 2 ea. and Ref. No. (9) 4 ea. included in KK-5006 Strainer Screen and Felt Kit. 2

FIGURE 2 QS-4016 AIR MOTOR Ref Replacement Ind. Parts No. Part No. Description Req'd. 17 QS-336 Oil Seal 1 18 QS-197 Bearing 1 19 Purchase Locally Machine Screw 12 1/4-28 x 1/2 20 QS-334 End Plate 1 21 QS-189-1-K10 Dowel Pin 4 (Kit of 10) •22 PT-59-K10 End Plate Gasket 2 Kit (Kit of 10) •23 --- Vane 4 24 QS-442 Rotor and Shaft 1 25 QS-335 Body 1 26 QS-333 Front Plate 1 •27 --- End Cap Gasket 1 28 PT-58 Bearing 1 29 QS-190 End Cap 1 •Parts available in Air Motor Repair Kit. Order KK-5001-1. 19 29 28 27 26 22 21 25 23 22 21 20 19 18 17 24

Ref Replacement Ind. Parts No. Part No. Description Req'd. 30 --- Thread Locking __ Compound - not shown *31 --- Fillister Head 4 Machine Screw 10-24 x 5/8" 32 QS-108 Pressure Relief 1 Fitting 33 QS-37-1 Cover Plate 1 *34 --- Washer 1 35 QS-416-1 Gear and Shaft Assy. 1 *36 --- Gasket 1 37 --- Pipe Plug 1/4", 1 Galvanized Purchase Locally 38 QS-36-1 Housing 1 *39 --- Oil Seal 1 *40 --- Cup Point Set-Screw 2 5/16-18 x 3/8" *41 --- Gasket 1 42 QS-59 Worm Gear 1 *43 --- Spacer 1 *44 --- Key, No. 5, 5/8" x 1/8" 1 FIGURE 3 GEAR BOX ASSEMBLY When Replacing Ref. No. 31, Torque to 15 in-lbs. min. When Replacing Ref. No. 40, Torque to 60 in-lbs. min. Apply SS-9868 Sealant to Threads as Needed. 40 41 42 43 40 Air Motor Shaft 38 39 37 36 35 34 33 32 31 44 *Parts included in KK-5010 Gear Box Kit.

CONDITION CAUSE CORRECTION AIR MOTOR DRIVE SERVICE CHECKS A. Air motor sluggish or inefficient. 1. Air motor needs cleaning. 2. Motor vanes need replacing or contaminants present in motor chamber, Figure 2. 3. Low oil level in gear box, Figure 3. 4. Gear and shaft assembly (36) and/or worm gear (43) worn, Figure 3. 5. Air motor bearing (19 or 29) worn, Figure 2. 1. Disassemble and clean per parts replacement instruc-tions. 2. Disassemble, clean motor per parts replacement instructions. Replace worn vanes. 3. Add oil per lubrication instructions. 4. Replace worn parts per parts replacement instructions. 5. Replace bearings per parts replacement instructions. B. Oil leakage from gear box. 1. Seal (40, Figure 3) worn. 1. Replace seal per parts replacement instructions.

SERVICE BULLETIN REVISIONS Refer to the following chart for Part No./Literature changes Part No. Changes Old Part No. New Part No. Interchangeability Literature Changes KK-5001-2 Air Motor KK-5001-1 Air Mtr. Repair Kit Directly. 1. Revised Figure 2. Repair Kit PT-77-K10 End Plate PT-59-K10 End Plate Gasket Kit Directly. O-Ring 7/11 ©2011 DeVilbiss All rights reserved. Printed in U.S.A. U.S.A./Canada Customer Service 195 Internationale Blvd. Glendale Heights, IL 60139 630-237-5000 Toll Free Customer Service and Technical Support 800-992-4657 Toll Free Fax 888-246-5732 DeVilbiss Sales and Service: www.devilbiss.com WARRANTY This product is covered by DeVilbiss’ 1 Year Limited Warranty.