TM9-2330-368-14 & P
(b) Inspect springs for kinks, corrosion
4-15. SERVICE BRAKES (cont)
and distortion.
(c) Inspect rollers, anchor pins, spring
(h) Remove roller retaining springs (8)
pins and bushings for wear, corro-
and rollers (9) from brake shoe
sion and other damage.
assemblies (6).
(4) Repair. Replace all defective parts.
(i) Drive out spring pins (10) from
brake shoe assemblies (6).
(5) Installation of Brake Shoes.
(j) Remove bushings (11) from axle
(a) Install bushings (11) in axle spider
spider (12) if worn.
(12) if removed.
(2) Cleaning.
(b) Drive spring pins (9) into brake shoe
assemblies (6).
WARNING
Dry cleaning solvent (P-D-680)
(c) Install rollers (9) on brake shoe as-
used to clean parts is potentially
semblies (6) and secure with retain-
dangerous to personnel and prop-
ing springs (8).
erty. Do not use near open flame
or excessive heat. Flash point of
(d) Install retract spring (7) on spring
dry cleaning solvent is 138F
pins (9) on brake shoe assemblies
(59C).
(6).
CAUTION
(e) Position brake shoe assemblies (6)
Do not allow lubricants or solvents
with springs (7 and 9) and rollers
to get on brake shoes. These ma-
so rollers engage cam (3) and shoes
terials will do damage to brake
straddle spindle (13).
linings and result in poor braking
action.
(f) Install two retaining springs (5) on
brake shoe assemblies (6).
WARNING
DO NOT use a dry brush or com-
(g) Pry up upper brake shoe assembly
pressed air to clean brakeshoes.
(6) and insert anchor pin (4) in
There may be asbestos dust on
upper bushing (11).
brakeshoes which can be danger-
ous to your health if you breath
(h) Pry down lower brake shoe assem-
it. Dampen surface of lining with
bly (6) and insert anchor pin (4)
water and use a soft bristle brush.
in lower bushing (11).
(i) Install hubs and drums (para. 4-14
(a) Clean all parts except brake shoes
e).
with a brush and dry cleaning sol-
vent. Air dry.
(j) Install wheels and tires (para.
(b) Clean brake shoes with soft bristle
brush.
(k) Adjust brakes (para. 4-15c).
(3) Inspection.
(a) Inspect brake shoes for wear and
scoring. Replace brakeshoes if
linings are worn to less than 5/16-
inch thick at any place on the
linings.
4-25
