4-57. WHEEL/TIRE REPLACEMENT (CONT).
Never crawl under trailer when
performing maintenance unless
trailer is securely blocked.
Trailer may fall and cause
serious injury or death to
Tire weighs 425 lbs (193 kg).
Attach suitable lifting device
prior to installation to prevent
possible injury to personnel.
Using lifting device, position tire (1) back
on wheel hub (2).
Ensure studs are fully seated in
slots before tightening nuts, or
wheel could come off during
operation of trailer, resulting in
injury or death of personnel.
If installing used lugnuts,
Perform Step (2).
Apply two drops of oil between flange (3)
and hex (4) of lugnut (5).
Install ten lugnuts (5) and tighten in the sequence shown.
Using jack, raise axle (6) and remove jackstand.
When returning axle to the ground, ensure personnel are out of the trajectory as shown by
the area indicated. Failure to comply may result in serious injury or death to personnel.
Lower jack and axle (6).
Tighten ten lugnuts (5) to 400 to 450 lb-ft (542 to 610 N.m) in the sequence shown.
Remove wheel chocks, (Para 2-20).
END OF TASK