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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
into the unit. Take care to keep disc pack (25) in proper order and separate from
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
plates are within the slots in the drive. Also, the spline on the friction discs 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
Clean seal surface of the cover (16) and piston assembly (26) of any old sealant
and wipe any oil from seal surface of cover. Most piston kits include a gasket (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
surface on inside of the bolt circle. N
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 by Auburn Gear) between the
motor and the planetary drive. "O" ring sizes: SAE A 2-042, 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 lubricant API-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) contact Auburn Gear for oil and level recommendations.
A protective 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 order Auburn Gear part number 604101.
Maximum intermittent output torque ................................................................................................................................................. 30,000 lb. in. (3,390 Nm)
Maximum input speed ....................................................................................................................................................................................... 2,500 RPM
Oil capacity ................................................................................................................................................................................................... 30 oz (887 ml)
Maximum parking brake release pressure ............................................................................................................................................... 3,000 PSI (206 bar)
: Do not use excessive amount of sealant
OTE
CARRIER ASSEMBLIES
LUBRICATION RECOMMENDATIONS
SEALING COMPOUND
SPECIFICATIONS
STEP 16
SAE A MOUNT BRAKES – Align the four brake assembly holes with the four
holes in the Power Wheel spindle or cover. Apply Locktite 262 to the four screws
to be installed and torque to 110 – 125 lb. ft. (148 – 169 Nm). SAE B MOUNT
BRAKES – Align the four piston assembly holes with the four holes in the Power
Wheel spindle or cover. Apply Locktite 262 to the four screws to be installed and
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
pressurize the brake to the specified release pressure. The brake plates should
now turn freely. If the hydraulic source will provide at least 1000 PSI pressure,
apply 1000 PSI and check to make sure that the pressure does not decay 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.
STORAGE
3
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