Usage:
start by:
a) remove front wheel tire and rim
1. Drain the oil from the front wheel bearing compartment. The capacity is approximately 1 U.S. gal. (3.8 liter).
2. Remove the bolts to the wheel assembly. Weight of the wheel assembly is approximately 500 lb. (227 kg).
3. Remove the lockwire that holds bolts (2). Remove bolts (2) and retainer (3).
4. Remove bearing (4).
5. Remove wheel assembly (5).
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Do not activate the brake after a front wheel and drum have been removed. If the brakes are activated with a brake drum removed, oil pressure in the expander tube can cause the torque bars, retractor springs and/or linkage linings out with enough force to cause damage to parts or personal injury. |
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6. Remove bearing outer race (6) from the wheel assembly.
7. Remove outer half of the Duo-Cone seal (7). Remove the O-ring seal from the Duo-Cone seal.
8. Remove the bearing inner race (8) from the wheel assembly.
9. Remove the bolts that hold the brake drum (9) to the wheel assembly. Remove the brake drum. Weight of the brake drum is 100 lb. (45 kg).
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To prevent possible personal injury two men are needed to remove the brake drum from the wheel assembly. |
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10. Remove the wheel inner bearing (10).
11. Remove the inner half (11) of the Duo-Cone seal. Remove the Duo-Cone seal retainer (12). Remove the O-ring seal from the Duo-Cone seal.
Install Front Wheel Bearings And Duo-Cone Seals
NOTE: See Warning in remove story.
1. Install the O-ring seal on the inner half of the Duo-Cone seal. Use tool (A) to install the Duo-Cone seal in the seal retainer (1).
2. Make sure the seal on the seal retainer is in its correct position. Install seal retainer (1) on the spindle.
3. Install the wheel inner bearing (2) on the spindle.
4. Install the brake drum (3) on the wheel assembly. Weight of the brake drum is 100 lb. (45 kg). Tighten the bolts that hold the drum to a torque of 185 ± 10 lb.ft. (254 ± 14 N·m).
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To prevent possible personal injury two men are needed to install the brake drum on the wheel assembly. |
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5. Lower the temperature of bearing race (4). Install it in the wheel assembly. Make sure the bearing race (4) is on its seat in the counterbore in the wheel assembly.
6. Install the O-ring seal on Duo-Cone seal (5). Install Duo-Cone seal (5) with tool (A).
7. Lower the temperature of bearing outer race (6). Install it in the wheel assembly. Make sure the bearing race is in its seat in the wheel assembly.
8. Fasten a hoist to the wheel assembly (7). Weight of the wheel assembly is approximately 500 lbs. (225 kg). Put the wheel assembly in position on the wheel spindle.
9. Install bearing (8) on the wheel assembly.
10. Make an adjustment to the front wheel bearings as follows:
a) Install retainer (9) (without shims) with three bolts that have even spaces between them.
b) Turn wheel and tighten the three bolts evenly to a torque of 50 lb.ft. (70 N·m).
c) Measure the distance to the spindle through the two tapped holes. Find the average of these measurements.
d) Remove the retainer and measure the thickness of the retainer in the area of the tapped holes. Take an average of the measurements.
e) The difference found in the average measurements plus .010 in. (0.25 mm) will give the correct shim pack thickness.
11. Install the shim pack (10) that was found in Step 10. Install retainer (9). Install the bolts that hold the retainer to the wheel spindle. Tighten the bolts to a torque of 150 ± 20 lb.ft. (205 ± 25 N·m).
12. Put lockwire (11) through the bolts that hold the retainer to the spindle. Install the cover (12) for the wheel assembly.
13. Fill the front wheel assembly with oil to the correct level. See LUBRICATION AND MAINTENANCE GUIDE for the correct level.
end by:
a) install front wheel tire and rim