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Maintenance
Recommended Maintenance Schedule(s)
Maintenance Service
Interval
After the first 10 hours
Yearly
Servicing the Wheel Hub
Service Interval: Yearly
1.
Raise the trailer on jack stands.
2.
Remove the 4 lug nuts securing the wheel to the
wheel hub and remove the wheel.
3.
Remove the dust cap from the wheel hub
16).
4.
Remove the cotter pin and retainer locknut
(Figure
16).
5.
Remove the hub nut, spindle washer and hub
assembly from the axle
6.
Inspect all of the hub assembly parts, including
the bearings, bearing cups, and oil seal.
Replace any damaged parts.
Figure 16
1. Dust cap
2. Retainer locknut
3. Hub nut
4. Spindle washer
5. Roller bearing
Maintenance Procedure
• Check the torque of the wheel lug nuts.
• Service the wheel hub and inspect for damage.
• Lubricate the wheel hub assembly.
(Figure
(Figure
16).
6. Bearing cup
7. Hub assembly
8. Oil seal
9. Cotter pin
10. Axle assembly
Lubricating the Wheel Hub
Assembly
Service Interval: Yearly
1.
Wipe away the existing grease from the
bearings, bearing cups, and hub assembly with
a clean, dry rag.
2.
Pack the bearing cups and interior surfaces of
the hub assembly with high-temperature grease
so that the bearings roller faces are completely
coated.
3.
Install the bearing cups and bearings to the hub
assembly as shown in
4.
Clean up any excess grease from the outside of
the hub assembly.
Installing the Wheel Hub Assembly
1.
Install the oil seal, hub assembly, and spindle
washer as shown in
2.
Tighten the hub nut while turning the wheel hub
assembly to seat the bearings and remove all
end play.
3.
While turning the wheel hub assembly, torque
the hub nut to 8.5 to 20.3 N⋅m (75 to 180 in-lbs).
4.
Loosen the hub nut until it does not contact the
washer and the hub has end play.
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5.
Tighten the hub nut to 1.7 to 2.3 N⋅m (15 to 20
in-lbs) while rotating the hub.
6.
Place the retainer locknut over the hub nut so
that the cotter pin hole is aligned with a slot on
the retainer locknut.
7.
Install a new cotter pin through the slot in the
retainer locknut and the axle and bend both legs
to secure the pin.
8.
Secure the hub cap.
8
Figure
16.
Figure
16.
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