Section Ill. REPAIR OF BRAKE DRUMS
Inspect brake drum for warpage, cracks, or scored braking surface. Place drum in lathe and check runout
of braking surface. Runout must not exceed amount specified in paragraph 5-18. Check inside diameter of
braking surface. Diameter must not exceed wear limit specified in paragraph 5-18.
Refinish braking surface on lathe if scored or if runout exceeds 0.007 inch. If refinishing requires removal
of more than 3/32 inch of metal (3/16 inch on diameter), or if braking surface is greater than specified in
Section IV. REPAIR OF TORQUE RODS
Examine rubber for loss of elasticity or breaks in materiel. Make certain ball with bushing assembly is
securely mounted in rod. Inspect threads for damage.
Remove burrs or hand-chase damaged threads with
fine file or thread restorer. If damage to thread can-
not be corrected, if rubber is hard or cracked, or if
ball with bushing assembly is loose in rod, install
new ball with bushing assembly. To install new
ball assembly, perform the following;
a. Using remover and replacer (fig. 5-1 and 5-6)
press out ball with bushing assembly.
b. Position new ball with bushing assembly and
press into rod with remover and replacer.
with bushing using remover and replacer