Quantcast Hubs Using Piloted Disc Wheels

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TM 9-2330-326-14&P
H-23.
TROUBLESHOOTONG HUBS (Cont.)
Hubs Using Piloted Disc Wheels (Cont.)
Problem
Cause
Solution
Example
Worn or
1. Loose capnuts
Replace hub following assembly
elongated
2. Overloading
procedures. When reassembling
stud holes
inboard-mounted brake drum to
hub, tighten nuts to specifications.
Damaged
Loose back nuts
Replace hub following assembly
stud and
procedures. When reassembling
groove
inboard mounted brake drum to
hub,  tighten  back  nuts  to
specifications.
Stud standout
Improper stud or
Replace
studs
or
drum.
wrong
wrong brake drum
Recommended standout is 1.31 to
1.44 in. (3.323.65 cm). When
changing from composite to cast
drum, studs may have to be
changed.
Rust streaks
Loose capnuts
Follow torque specifications.
H-62



 


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