122 FX30 - MAINTENANCE
TRAILER
122 FX30 - MAINTENANCE
TRAILER
1200
1. Place adequate jack stands under frame rails and remove
wheels.
2. Unscrew grease cap counterclockwise while hold the hub
stationary.
3. Bend locking tang down from outer spindle nut and remove
spindle nut.
4. Remove tang washer, unscrew inner spindle nut and remove
spindle washer.
5. Remove hub from spindle. Do not drop outer bearing cone.
6. Pry seal from hub and remove inner bearing cone.
7. Inspect brake drum for excessive wear or heavy scoring.
8. Clean all grease from bearing cups, cones, hardware, and
hub bore using suitable solvent. Dry components with lint free
cloth.
9. Inspect bearing cups and cones for pitting, spalling, and
corrosion. Replace if damaged.
10. Pack all cones using and extreme pressure, water resistant
lithium complex grease. Apply light coating of grease to
gearing cones.
11. Install the bearing and washer into the hub. Thread on the
inner nut, rotate the hub, and tighten the nut until the hub will
not rotate. This requires a minimum of 100 ft•lb (136 N•m) of
torque.
Condition Recommended
Action
Brake drum worn more than .020 in (5
mm).
Remachine
drum surface
Brake drum worn out of round more
than .015 in (.39 mm).
Brake drum has scoring and other
wear greater than .090 in (2.29 mm)
Replace drum
1200
1. Place adequate jack stands under frame rails and remove
wheels.
2. Unscrew grease cap counterclockwise while hold the hub
stationary.
3. Bend locking tang down from outer spindle nut and remove
spindle nut.
4. Remove tang washer, unscrew inner spindle nut and remove
spindle washer.
5. Remove hub from spindle. Do not drop outer bearing cone.
6. Pry seal from hub and remove inner bearing cone.
7. Inspect brake drum for excessive wear or heavy scoring.
8. Clean all grease from bearing cups, cones, hardware, and
hub bore using suitable solvent. Dry components with lint free
cloth.
9. Inspect bearing cups and cones for pitting, spalling, and
corrosion. Replace if damaged.
10. Pack all cones using and extreme pressure, water resistant
lithium complex grease. Apply light coating of grease to
gearing cones.
11. Install the bearing and washer into the hub. Thread on the
inner nut, rotate the hub, and tighten the nut until the hub will
not rotate. This requires a minimum of 100 ft•lb (136 N•m) of
torque.
Condition Recommended
Action
Brake drum worn more than .020 in (5
mm).
Remachine
drum surface
Brake drum worn out of round more
than .015 in (.39 mm).
Brake drum has scoring and other
wear greater than .090 in (2.29 mm)
Replace drum