CAUTION
DO NOT permit oil or grease on the brake linings.
Use a brake cleaning fluid as necessary to clean
linings that will not be replaced.
4.
Any cleaning cloths that will be washed must
be cleaned so that fibers are not released into
the air.
INSPECT
1.
Inspect the bore of wheel cylinder for holes or
scratches. Replace wheel cylinder assembly if
there is any damage.
2.
Inspect return springs for wear and damage.
Inspect back plate for wear where brake shoes
touch back plate. Remove any grooves or re-
place a worn or damaged back plate.
WARNING
The brake shoes on both wheels must be replaced
if any shoe is damaged. The brake performance
on both ends of an axle must be equal, or the lift
truck can be difficult to steer when the brakes are
applied.
3.
Inspect brake shoes for cracks or damage. If lin-
ings or shoes are worn or damaged, replace
brake shoes. Maximum wear is to within
1 mm (0.039 in.) of contact with rivets, or metal
shoe on bonded linings. Brake shoes must be
replaced in complete sets. Inspect brake drums
for cracks or damage. Replace any damaged
parts.
4.
Inspect brake drum for deep grooves or other
damage.
NOTE:
If grooves must be removed from brake
drums,
DO
NOT
grind
more
than
1.5 mm (0.060 in.) from internal diameter of brake
drum.
Maximum limit of internal diameter of the brake
drum is 312 mm (12.28 in.) for lift truck models
• S2.0-3.5FT (S40-70FT, S55FTS (H187)
• H2.0-3.5FT (H40-70FT) (P177)
Maximum limit of internal diameter of brake drum
is 255.5 mm (10.06 in.) for lift truck models
• S30-35FT, S40FTS (F010)
• H1.6-1.8FT, H2.0FTS (H30-35FT, H40FTS)
(G001)
• S50CT (B267)
• H2.0-2.5CT (H50CT) (B274)
If internal diameter is larger than the limit, replace
brake drum.
5.
The teeth of adjuster wheel must not be worn.
Adjuster wheel must turn freely. Check ad-
juster links for damage.
6.
Make sure parking brake cables are in good
condition.
7.
Check grease seals and surfaces of seals for
wear or damage.
ASSEMBLE AND INSTALL
1.
If removed, install back plate to drive axle.
Tighten special screws as indicated below:
a.
Eight special capscrews are tightened to 255
to 306 N•m (188 to 226 lbf ft) for lift truck
models
• S2.0-3.5FT (S40-70FT, S55FTS (H187)
• H2.0-3.5FT (H40-70FT) (P177)
Service Brakes Repair (Dry Brake)
1800 SRM 1743
10
