Auburn Gear Power Wheel Model 6 User manual

AUBURN, INDIANA 46706-3499
U.S.A. PHONE: [phone]
FAX: [phone]
Power Wheel® Service Manual
Model 6 Single Reduction
Shaft and Spindle Output Drives
With Integral Parking Brake Option
9
8
4
3
2
11
12
13
14 15
16
20
17
21
22 23 24 25
27
26
1
10
18 19
4
6
5
7

IDENTIFICATION
IMPORTANT: All Power Wheel units and kits are shipped with a nameplate that includes the Auburn Gear part number and order code as shown.
Example: Power Wheel®
ORDER CODE: 6WB13156C
PART NO.: 6000236
SERIAL NO.: 143434
AUBURN, IN U.S.A.
2
In addition to the nameplate, Power Wheel drives are stamped with an identification number
which appears on the cover or hub flange as shown.
Example: 6000236-A-4-9
When ordering parts, the information included on the nameplate or the stamped identification
number is necessary to accurately identify the drive and obtain the correct replacement parts.
Once this information has been obtained, contact Auburn Gear for the appropriate parts list.
DISASSEMBLY OF POWER WHEEL
STEP 1
If brake portion of drive is to be serviced: SAEAand SAE B MOUNTBRAKES
–Remove motorfromplanetary drive.SAE BMOUNTBRAKES –Temporarily
installtwo 1/2-13 x1.25 screws intohydraulic motormounting holes andtorque
to50lb. ft.(67Nm).Thesemust be usedtohold springback-upplatein position
when parking brake assembly is removed from the drive. If the brake portion of
drive does not require service go to step 5.
STEP 2
SAE A MOUNT BRAKES – Remove the four socket head cap screws (27)
retaining the brake to the drive, leaving the two screws in line with the motor
mounting holes in place. These two screws hold the spring back-up plate in
position when the parking brake assembly is removed from the drive. SAE B
MOUNT BRAKES – Remove the four T-50 Torx head screws (27) holding the
parkingbrakeassemblyinposition.(Somemodelsmaybeequippedwithsocket
headcap screws).It may benecessary tolightly strikethe pistonassembly (26)
with a rubber mallet to loosen from spindle or cover.
STEP 3
Removediscpack(25)fromdriveonlyifnecessary.Becarefultomaintaindiscs
in order.
STEP 4
If brake piston assembly (26) has been removed slide the coupling (23) and
retaining ring (24) from splines on input shaft (15). Remove sleeve bearing (22)
only if replacement is required.
STEP 5
Remove eight hex head bolts (19) and flat washers (18) from cover (16). Lift
cover (16) from assembly.Thrust washer (14) usually remains with cover (16).
STEP 6
Removethe splinedinput shaft (15)and liftsun gear(13) fromcarrier assembly
(12).
STEP 7
Remove carrier assembly (12) from ring gear (11).
STEP 8
Remove six hex head bolts (5) and flat washers (6) from hub (8). Pull ring gear
(11) from remaining assembly. It may be necessary to strike ring gear (11) with
rubber mallet to loosen from hub (8).
STEP 9
Remove retaining ring (10) from groove in output shaft (1). Pull output
shaft (1) from hub (8). NOTE:To remove retaining ring (10), use retaining
ring expander tool.
STEP 10
Remove oil seal (2) and bearing cones (3 & 9) from hub (8). Inspect bear-
ing cups (4) in hub (8) and remove only if replacement is required.
ASSEMBLY OF POWER WHEEL
STEP 1
Press new bearing cups (4) in each side of the hub (8). It is recommended that
bearing cups (4) and cones (3 & 9) be replaced in sets.
STEP 2
Assemble bearing cone (3) into cup (4) at seal end of hub (8) and press a new
seal (2) into hub (8).
STEP 3
Lubricate lips of oil seal (2) and lower hub (8) onto output shaft (1). Hub (8)
shouldbecenteredasitisloweredoveroutputshaft(1)topreventsealdamage.
STEP 4
Assemble bearing cone (9) over output shaft (1) and into bearing cup (4). If
bearing (3, 4 & 9), hub (8) or output shaft (1) is replaced, a new retaining ring
(10) is required for proper bearing setting. Do not re-use snap ring after it has
beeninstalled andremoved fromunit. Selectthe thickestretaining ring(10) that
can be assembled into ring groove of the splined end of output shaft (1) above
bearingcone(9).Bearingshouldhavefrom.000–.006inches(0.00–0.15mm)
of end play when proper retaining ring (10) is installed.
STEP 5
Clean mating surfaces and apply a bead of silicone sealant to face of hub (8)
that mates with ring gear (11). (See instructions on sealant package).
STEP 6
Assemble ring gear (11) to hub (8) being careful to align all the bolt holes.
STEP 7
Installsix grade 8hex head bolts(5) andflat washers (6).Torquebolt to 52– 60
lb.ft. (70 –81 Nm).
STEP 8
Place carrier assembly (12) into ring gear (11) aligning the gear teeth. Carrier
splines mesh with splines on output shaft (1).
STEP 9
Install sun gear (13) into carrier assembly. Sun gear (13) should turn freely by
hand when assembled.Assemble splined input shaft (15) into sun gear (13).
STEP 10
Apply a bead of silicone sealant to cover face of ring gear (11). Secure thrust
washer (14) with tangs engaged in cover (16). NOTE:Washer (14) can be se-
curedto cover(16) witha smallamount ofgrease orsilicone sealant.Assemble
cover (16) to ring gear (11). Align cover (16) with hub (8) such that pipe plug
holes on cover (16) align with mounting holes in hub (8).
STEP 11
Install sleeve bearing (22) in cover (16).Assemble retaining ring (24) to adapter
coupling (23) and place into sleeve bearing (22) in cover (16). It may be neces-
sary to rotate coupling to align splines.
STEP 12
Installeightflatwashers(18) and hexheadbolts(19)andtorque to 20–25lb.ft.
(27 – 34 Nm) with dry threads. Lubed threads torque to 16 – 21 lb. ft. (22 – 28
Nm).

3
STEP 13
The proper disc pack and piston cylinder assembly will depend on the Power
Wheel brake model number: Contact Auburn Gear for specific part numbers.
Disc packs are supplied as a matched set. Replacement packs are packaged
individually to retain the matched characteristics.After removing from package
pre-soak the disc pack in the oil used in the Power Wheel drive before placing
intothe unit.Take caretokeep discpack (25)inproper orderand separatefrom
other disc packs.
STEP 14
Align the tangs on the steel separator plates and carefully place the complete
disc pack (25) into the Power Wheel drive so that the tangs on the separator
platesarewithintheslotsinthedrive.Also,thesplineonthefrictiondiscs should
be aligned with the spline on the Power Wheel adapter coupling (23). Check to
make sure that the disc pack is properly seated.
STEP 15
Cleansealsurfaceofthe cover (16)andpistonassembly(26)of any oldsealant
andwipeanyoilfromsealsurfaceofcover.Mostpistonkitsincludeagasket(21)
which should be placed on cover face to seal interface with piston assembly. If
no gasket is included, apply a continuous 1/32 bead of silicone sealant to seal
surfaceoninsideoftheboltcircle.NOTE:Donotuseexcessiveamountofsealant
as this can interfere with proper operation of the parking brake.
NOTE: When installing a hydraulic motor to the Power Wheel drive it is necessary to place an “O” ring or gasket (not supplied byAuburn Gear) between the
motor and the planetary drive. “O” ring sizes: SAEA2-042, SAE B 2-155, SAE C 2-159.
It is recommended that the carrier assembly (12) be serviced in its entirety to protect the integrity of the Power Wheel drive.
IMPORTANT: POWER WHEEL PLANETARY DRIVES ARE SHIPPED WITHOUT LUBRICANT AND MUST BE FILLED TO THE PROPER LEVEL PRIOR
TO START UP.
Observe lubrication recommendations given by the original equipment manufacturer. When specific recommendations are not available, use mild extreme
pressure lubricantAPI-GL-5, No. 80 or 90 when filling the Power Wheel under normal temperature ranges between 0 - 120°F (-18 to 49°C). Power Wheel is to
be half full of oil when unit is mounted level and horizontal. Use drain and fill plugs located in cover and ring gear. Oil is to be changed after first 50 hours of
operation with subsequent changes every 1000 hours or yearly, which ever comes first. If unit is to be operated vertically, if ambient conditions are outside the
specified range, or if the oil temperature exceeds 200°F (93°C) contactAuburn Gear for oil and level recommendations.
Aprotective film is applied to the Power Wheel at the factory to prevent rust during shipment.Additional protection may be required if the Power Wheel is to be
stored for an extended period of time.
Silastic RTV732 sealer and General Electric Silimate RTV No. 1473 or RTV No. 1503 are currently recommended for sealing gasket surfaces. Sealant should
be applied in a continuous bead, which should be centered on the surface to be sealed but should move to the inside of the hole at each bolt hole location. For
service requirements orderAuburn Gear part number 604101.
Maximum intermittent output torque.................................................................................................................................................30,000 lb.in. (3,390Nm)
Maximum input speed ....................................................................................................................................................................................... 2,500 RPM
Oil capacity ...................................................................................................................................................................................................30 oz (887 ml)
Maximum parking brake release pressure...............................................................................................................................................3,000 PSI (206 bar)
SPECIFICATIONS
SEALING COMPOUND
STORAGE
LUBRICATION RECOMMENDATIONS
CARRIER ASSEMBLIES
STEP 16
SAE A MOUNT BRAKES – Align the four brake assembly holes with the four
holesinthePowerWheelspindleorcover.ApplyLocktite262tothefourscrews
to be installed and torque to 110 – 125 lb. ft. (148 – 169 Nm). SAE B MOUNT
BRAKES–Alignthefourpistonassemblyholeswith thefourholesinthePower
Wheelspindleor cover.Apply Locktite262to thefourscrewsto beinstalledand
torque to 80 – 94 lb. ft. (108 – 127 Nm).
STEP 17
SAE B MOUNTS ONLY – Remove the two screws installed in motor mounting
holes.
STEP 18
Before using the brake, it is recommended that a pressure release check be
performed. Using a suitable hydraulic source, bleed the air from the brake and
pressurizethe brake to the specifiedrelease pressure.The brakeplates should
now turn freely. If the hydraulic source will provide at least 1000 PSI pressure,
apply1000 PSIandcheck tomake surethatthe pressuredoes notdecay more
than 30 PSI in 60 seconds.
STEP 19
After motor is assembled to drive or drive is sealed at cover, fill with lubricant to
proper level and replace all plugs.

ITEM DESCRIPTION* NO. USED
NO. IN ASS’Y.
* ContactAuburn 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.
MH427 - 0497 Power Wheel®is a registered trademark of Auburn Gear
ITEM DESCRIPTION* NO. USED
NO. IN ASS’Y.
1 Output Shaft or Spindle 1
2 Oil Seal 14-00-044-010 1
3 Bearing Cone 04-01-101-35 1
4 Bearing Cup 04-01-102-12 2
5 Hex Head Bolt (Grade 8) 6
6 Flat Washer 14-00-047-002 6
7 Pipe Plug 03-04-101-09 1
8 Hub 1
9 Bearing Cone 04-01-101-17 1
10 Retaining Ring Kit 14-02-410-003 1
11 Ring Gear 1
12 Carrier Assembly 1
13 Sun Gear 1
14 Thrust Washer 1
15 Splined Input Shaft 1
16 Cover 1
17 Magnetic Plug 14-00-052-002 1
18 Flat Washer 8
19 Head Hex Bolt 8
20 Pipe Plug 605204 1
21 Gasket 904502 1
22 Sleeve Bearing 612701 1
23 Coupling 1
24 Retaining Ring 613915 1
25 Disc Pack 1
26 Piston Assembly 1
27 Socket or Torx Head Screw 4
Model 6 Power Wheel®Service Kits
Part No. Description Included Items
14-02-410-003 Retaining Ring Kit 10 (7 Retaining Rings)
641008** Bearing and Seal Kit 2, 3, 4, 9, and 10
641017** Seal Kit 2 and 10
** Indicates kit also includes a tube of sealant, part number 604101.