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OPERATION AND MAINTENANCE
Wheel Bearing Maintenance –
Non Triple-Lip
Transport tires use a self-contained seal with multiple
lips. The seal fits tight on both the spindle and wheel hub.
The seal when properly installed will rotate internally and
freely. This seal will also allow grease to pass when
lubricating the hub.
Wheel bearing maintenance should be preformed at the
beginning of every season of use. Check the wheel
bearings periodically for excessive end play.If needed,
adjust or replace them using the following procedure:
1. Place the frame on blocks or stands sufficiently to lift
the tire clear of the ground.
2. Remove the tire.
3. Remove the dust cap, gasket, cotter pin, slotted nut,
and washer.
4. Remove the hub assembly from the spindle. Clean
and inspect the bearings and hub cavity. Replace any
worn or defective parts.
5. Repack the bearings using a high-quality wheel
bearing grease.
6. Install the inner bearing into the hub and install the
grease seal. Use a driver to install the seal, to avoid
damaging the outer edge of the seal. Drive the seal
squarely into the hub to avoid any seal distortion.
7. Slide the hub, bearing, and seal onto a clean spindle
8. Install the outer bearing, washer, and slotted nut.
9. Tighten the slotted nut while rotating the hub until
there is a slight resistance to hub rotation. Then back
the slotted nut off one notch, until the hub rotates
freely without end play.
10. Install the cotter pin, dust cap and gasket
See Figure
4-12.
Figure 4-12: Non-Triple Lip-Seal
4-10
HUB CAP
COTTER PIN
NON TRIPLE-LIP SEAL
Wheel Bearing Maintenance --
Triple-Lip
Wheel bearing maintenance should be performed at the
beginning of every season of use. Check the wheel
bearings periodically for excessive end play. If needed,
adjust or replace them using the following procedure:
1. Place the frame on blocks or stands sufficient to lift
the tire clear of the ground.
2. Remove the tire.
3. Remove the hub cap, cotter pin, slotted nut and
washer.
4. Remove the hub. Clean and inspect the bearings and
hub cavity. Replace any worn or defective parts.
5. Repack the bearings using a high-quality wheel
bearing grease.
6. Slide the triple-lip seal onto the spindle. Do not install
the seal into the hub.
7. Slide the inner bearing cone and hub onto the
spindle.
8. Install the outer bearing cone, washer and slotted
nut.
9. Tighten the slotted nut while rotating the hub until
there is a slight resistance to wheel rotation. Then,
back the slotted nut off one notch, until the wheel
rotates freely without end play.
10. Slide the triple-lip seal to the hub and install the seal
in the hub.
NOTE
The triple-lip seals should point away from the hub to
keep contaminants out and allow grease to pass
Figure
4-13.
11. Install a new cotter pin and replace the hub cap.
Figure
4-13.
Figure 4-13: Triple Lip-Seal
See
See
HUB CAP
COTTER PIN
SEAL SHOULD POINT
AWAY FROM HUB
F-605-0221
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