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7. Secure the lock nut (9) by bending the lock washer tab (8) into one of the 4 slots of the lock nut (9). If no tab from
the lock washer (8) aligns with a slot of the lock nut (9), then the lock nut (9) may be tightened until one of the slots
aligns with the lock washer tab (8).
8. Clean the mating surface and apply a bead of silicone sealant to the face of the hub (6) that mates with the ring
gear (10). See the instructions on the sealant package. Assemble the ring gear (10) to the hub (6), being careful to
align the bolt holes.
9. Assemble the secondary carrier assembly (11) into the ring gear (10), aligning the gear teeth. The carrier splines
will mesh with the splines on the output shaft (1).
10. Install the sun gear (12) into the secondary carrier assembly (11). The sun gear (12) should turn freely by hand
when assembled.
11. Apply a bead of silicone sealant to cover the face of the ring gear (10). Secure the thrust washer (13), using a small
amount of grease or silicone sealant, with its tangs engaged in the cover (14). Assemble the cover (14) to the ring
gear (10).
12. Install the twelve socket head cap screws (17) and washers (16), and torque them to 45-50 ft-lbs (60-68 Nm).
13. Position the filler opening vertically and fill it with lubricant to the proper level.
CARRIER ASSEMBLIES
It is recommended that the secondary carrier assembly be serviced in its entirety to protect the integrity of the Power Wheel
drive unit.
LUBRICATION RECOMMENDATIONS
Power Wheel planetary drives are shipped without lubricant and must be filled to the proper level prior to start up. Please
observe the lubrication recommendations given by the original equipment manufacturer. If 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 (-18-49°C). See the specifications below for oil fill requirements for various Power
Wheel mounting orientations. Use drain and fill plugs located in the hub and cover. Oil is to be changed after the first 50
hours of operation, with subsequent changes every 1000 hours or yearly, whichever comes first. 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.
STORAGE
A protective film is applied to the Power Wheel drive units at the factory to prevent rust during shipment. Additional protection
may be required if the drive unit is to be stored for an extended period of time.
SEALING COMPOUND
Silastic RTV732 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.
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