HUBS, BRAKEDRUMS, AND ABS SENSOR MAINTENANCE--Continued
Inspect brakedrum for pitting or scoring. If brakedrum is damaged, replace it.
Inspect hub for rust, pitting, or cracks.
Wheel bearings and bearing cups are matched sets. If
wheel bearings need replacing, bearing cups must also
Inspect inner and outer wheel bearings for cracks or breaks in bearing cage, etching or pitting on
roller surfaces, and any evidence of wear. Replace if worn or damaged.
Pack inner and outer wheel bearings from large end of cone with grease, making sure all cavities
between rollers and cage are filled. Cover bearings with clean, lint-free rag until time to install.
Inspect inner and outer bearing cup in hub for pits, grooves, or flaking. If damaged, replace with
new bearing cup.
Install wheel studs (16) if removed.
Install inner and outer bearing cups (10 and 12) into hub (11).
Install inner wheel bearing (13) and new seal (14) into hub (11).
Install hub (11) fully to spindle (15).
Install outer wheel bearing (9) to spindle (15).
Install inner bearing nut (8) to spindle (15) and tighten to 75 lb-ft (101.7 Nm) to ensure proper
seating of wheel bearings.
Loosen inner bearing nut (8) so wheel will turn freely.
Tighten inner bearing nut (8) to 50 lb-ft (67.8 Nm) while rotating hub (11) in order to position
bearings for proper adjustment.
Failure to torque outer bearing nut properly could cause
wheel to come off during vehicle operation, which could
result in severe injury or death to personnel or severe
damage to property.
Loosen inner bearing nut (8) 1/3 turn.
Install lockring (7) so dowel on inner bearing nut (8) aligns with hole in lockring (7) and tang fits in
keyway of spindle (15).