Hammerhead HG2200AT, Operator'S Manual

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HG2200/HG2200AT Operator’s Manual
1000 Hour
Service - 125
Adjust and Lubricate Wheel
Bearings (Wheeled Unit)
Adjust and lubricate bearings every 1000 hours.
1. Place adequate jack stands under frame rails
and remove wheels.
2. Unscrew grease cap (1) while holding the hub
stationary.
3. Remove cotter pin (2). Inspect cotter pin for
wear or damage. Replace if necessary.
4. Remove castellated nut (3) and spindle
washer (4).
5. Remove hub (5) from spindle. Do not drop
outer bearing.
6. Remove inner bearing (8) and pry seal (7) from hub. Inspect seal for wear or damage. Replace if
necessary.
7. Inspect brake drum for excessive wear or heavy scoring.
8. Clean all grease from bearing cups (9), bearings (6, 8), hardware, and hub bore using suitable solvent.
Dry components with lint free cloth.
9. Inspect bearing cups and bearings for pitting, spalling, and corrosion. Replace if damaged.
10. Pack all bearings with EPG. Apply light coating of grease to bearings.
11. Reinstall seal on hub and replace inner bearing.
12. Ensure the bearings and bearing cups are seated correctly into the hub.
13. Replace hub.
14. Replace spindle washer and castellated nut.
15. Hand tighten the nut and back it off 1/4 to 3/4 of a turn.
16. Replace cotter pin.
17. Replace grease cap.
18. Rotate the hub and check bearing adjustment. Allowable end play is 0.001-0.010” (0.025-0.25 mm).
Condition Recommended Action
Brake drum worn more than 0.020” (.5 mm). Remachine drum surface
Brake drum worn out of round more than 0.015” (0.39 mm).
Brake drum has scoring and other wear greater than 0.090” (2.29 mm) Replace drum
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