Power Wheel® Service Manual ¨Q¨ and ¨P¨ SeriesTM Integral
Contents
1. 4 Coupling 1 9 Spindle Cover 1 5 Retaining Ring 613915 1 Contact Auburn Gear with part number and order code of drive to obtain the appropriate parts list Refer to parts list for the specific part numbers and quantities SEALS IN 0 RING BACK UP UNITS MUST O RING BE POSITIONED AS SHOWN BACK UP RING PISTON BRAKE COVER BRAKE CYLINDER SOCKET HEAD OR TORX CAP SCREW BACK UP RING GASKET OR SEALANT O RING SPRINGS NOTE QUAD LOBED SEAL UNITS HAVE NO BACK UP RINGS Figure 1 Seal Placement Figure 2 Silicone Sealant Bead Table 1 Parts List Example 941051 Part No Description Qty 941051 Ki O Ring INN 914105 Piston Seal O Ring Small a 914106 Piston Seal O Ring Large a 914107 Back up Ring Small _____ 914108 Back up Ring Large _ _ 1 904502 Gasket Spindle 904505 Gasket Back upPlate________ ______t ______ MH 546 0900 Power Wheel is a registered trademark of Auburn Gear2. bores are especially important any damage in these locations requires replacement of the part Sharp edges may be smoothed with emery cloth STEP 2 Clean parts and place on clean surface Apply coating of hydraulic fluid to seals and install into piston grooves DO NOT USE TOOLS WITH SHARP EDGES TO INSTALL SEALS See Fig 1 for correct placement of seals STEP 3 Apply coating of hydraulic fluid to cylinder bores Place cylinder large bore up on surface and place piston seal assembly large end up on cylinder Make sure piston is not cocked in the bores and that seals are fully seated in their grooves before pressing Press piston fully into cylinder with hand or by placing wood block over piston and gently tapping with rubber mallet STEP 4 Inspect cylinder for seal material to ensure that seal was not damaged or pinched during Step 3 If none seen proceed to reassemble brake ASSEMBLY OF Q AND P SERIES PARKING BRAKES SAE AB and C MOUNT STEP 1 Install coil springs on seat surface of piston If piston has machined spring pockets place springs in pockets spacing springs evenly around piston If seat surface in piston is smooth place springs on surface spacing them evenly around piston Place cover gasket into position on cylinder STEP 2 SAE A MOUNT BRAKES Align holes in cover with cylinder holes and place cover on springs taking care to keep springs in correct positions Install the two screws in li
3. Power Wheel Service Manual art Q and P Series Auburn Gear Integral Parking Brakes YY SAE A B and C Mounting WHEEL DRIVE SHAFT SPINDLE OUTPUT amp SWING DRIVE 400 EAST AUBURN DRIVE AUBURN INDIANA 46706 3499 U S A PHONE 219 925 3200 FAX 219 925 4725 WEB www auburngear com EMAIL powerwheel auburngear com DISASSEMBLY OF Q AND P SERIES PARKING BRAKES SAE A B and C MOUNT STEP 1 SAE A MOUNT BRAKES Remove motor from planetary drive SAE B AND C MOUNT BRAKES Remove motor from planetary drive Install two 1 2 13 x 1 25 screws into motor mounting holes and finger tighten STEP 2 SAE A MOUNT BRAKES Remove the six socket head cap screws retaining the brake to the drive NOTE The brake engagement springs will force the cover plate away from the brake body as the last of these bolts are loosened Loosen the two bolts in line with the motor mount holes to release the spring pressure but do not remove them entirely until the brake assembly is laid cover up on a horizontal surface This will prevent the springs from falling out of the spring cavity SAE B AND C MOUNT BRAKES Remove the four T 50 Torx head screws retaining the brake to the drive Some models may be equipped with socket head cap screws STEP 3 Remove parking brake assembly and place on clean flat surface lt may be necessary to lightly strike the assembly with a rubber mallet to loosen from
4. cap screws and install screws to attach brake to drive Torque screws to 80 94 ft lbs STEP 7 SAE B AND C MOUNTS ONLY Remove 1 2 13 screws in mounting motor holes STEP 8 Before using the brake it is recommended that a pressure release check be performed Using a suit able hydraulic source bleed the air from the brake and pressurize the brake to the specified release pressure The brake plates and therefore the drive should now turn freely If the hydraulic source will provide at least 1000 PSI apply 1000 PSI and check to make sure that the pressure does not decay more than approximately 30 PSI in one minute Q SERIES AND P SERIES BRAKE SERVICE PARTS MODEL 6 WHEEL DRIVES MODEL 5 6 6B AND 7 SHAFT SPINDLE OUTPUT DRIVES SAE A A Bt _ Obatotto f o saor oao 941048 A B2 _O6At4et 0o saog ost0mt 941048 A Bs Q6A42 350 _ P6A 42 350 941020 941012 941048 941051 vw VGA9 120 o Saor 941033941048 A va _OQv atseo 4024941033 941048 A vs Qv6a21 300 estos 941033 941048 A Ve Qvea24425 po es1w0w0 941033 941048 MODEL 6 WHEEL DRIVES MODEL 5 6 6B AND 7 SHAFT SPINDLE OUTPUT DRIVES SAE B Bes Q6B 42 350 PeBw423850 941006 941012 941048 941051 a vw V6B9 1200 ewtw003 941033 941048 A V2 Overa ewstw004 941033941048 A V3 QV6B 15 220 ewstw07 941033 941048 a va QV6B 18 260
5. esw0m8 941033 941048 A V5 QV6B 21 300 94005 941033 941048 Ve QV6B 24425 po 9400 941033 941048 MODEL 7 8 88 AND 9 WHEEL DRIVES MODEL 8 8B AND 9 SHAFT SPINDLE OUTPUT DRIVES SAE B BI 8B 0 110 f o oes1w007 941011 941049 po BA 8B 460 oew1w008 941011 941049 J PBS 98847110 oew1w007 941012 941049 J B6 Q8B 42 350 _ P8B 42 350 941010 941012 941049 941052 a Vi eBo o Smoor 9033 941049 A vw 8B 2190 94008 94103394104 A V3 8815 220 9o29 941033 941049 a va ovemeriseo 94030 941033 941049 J Ve 824 425 po tO 941033 T8404 MODEL 7 8 88 AND 9 WHEEL DRIVES MODEL 8 8B AND 9 SHAFT SPINDLE OUTPUT DRIVES SAE C A Br _osctottoo f o o oaos att es050 a BA _oscut et eo onoi oao 941050 o B3 _osctiritoop Saos 941012 941050 J B6 Q8C 42 350 P8C 42 350 941016 941012 941050 941053 Oo Vi ocaizo aos 941033 941050 J A vw ovio o Samoa 941033 941050 J A V8 v8C 15 220 oestw031 941033 941050 J av v8c 18 260 o oewtw032 941033 941050 J A V5 Qv8c 21 300 saos 941033 941050 J A ve Qv8c 24425 saoe 941033 941050 ITEM DESCRIPTION NO USED ITEM DESCRIPTION NO USED NO IN ASS Y NO IN ASS Y 1 Socket or Torx Head Screw 4 6 Input Shaft 1 2 Piston Assembly 1 i Sleeve Bearing 612701 1 3 Disc Pack 1 8 Gasket 1
6. ne with the motor mounting holes and tighten carefully to compress springs Do not torque Inspect springs through center hole to ensure they are in correct position SAE B AND C MOUNT BRAKES Align holes in cover with cylinder holes and place cover on springs taking care to keep springs in correct positions Install the two 1 2 13 screws into motor mounting holes and tighten carefully to compress springs Do not torque Inspect springs through center hole to ensure they are in correct position STEP 3 If there was originally a gasket between the brake and spindle or cover clean spindle or cover surface and place spindle cover gasket into position taking care to properly align disk cut out in gasket with brake disk tangs STEP 4 If a gasket was used go to step 6 if not perform step 5 STEP 5 Clean seal surface of the drive and brake assembly of any old sealant and wipe any oil from seal surface of spindle or cover Apply a continuous 1 32 bead of silicone sealant to surface on inside of the bolt hole circle See Fig 2 NOTE Do not use excessive amount of sealant as this can interfere with proper operation of brake STEP 6 SAE A MOUNT BRAKE Align brake holes with holes in spindle or cover Apply Loctite 262 to four socket head cap screws and install screws to attach brake to drive Torque to 110 125 ft lbs SAE B AND C MOUNT BRAKES Align brake holes with holes in spindle or cover Apply Loctite 262 to four Torx or socket head
7. spindle or cover Inspect the interface between the brake and spindle or cover to determine if the sealing media is a gasket or RTV compound STEP 4 Remove disk pack from drive only if necessary Be careful to maintain disks in order STEP 5 SAE A MOUNT BRAKES Slowly back out two screws in line with motor mounting holes until springs are at full extension then remove screws SAE B AND C MOUNT BRAKES Slowly back out two 1 2 13 screws installed in step 1 until springs are at full extension then remove screws STEP 6 Remove brake cover It may be necessary to lightly strike the cover with a rubber mallet to loosen from brake cylinder Remove and discard gasket NOTE Springs are not retained and will fall out if brake assembly is not placed on horizontal surface STEP 7 Turn brake assembly over so that large end of brake piston is down STEP 8 Place brake on spacer s to provide clearance for piston to be removed Remove piston by pressing down with fingers on small end of piston If necessary piston may be tapped out of cylinder bore with rubber mallet STEP 9 Remove old seals from piston and compare with new seals to ensure that correct parts are on hand NOTE Seals of different styles are not interchangeable If styles match discard old seals INSTALLATION OF NEW SEALS STEP 1 Inspect piston and brake cylinder carefully for sharp edges nicks scratches or other damage The seal grooves on the piston and the cylinder
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