2) Actuator (Reference)
Check the ball,spring,pressure plate,and brake rod
for abnormality.Replace defective parts. Replace
the actuator whose thickness exceeds the usable
limit.
Standard thickness : mm 14.9±0.1
Usable limit:mm 14
Note:
Slight scratches on the friction surface can be
corrected with sandpaper(#1000)
3) Separator plate.
Measure the thickness and replace the plate whose
thickness exceeds the usable limit or whose
surfaces are damaged (Fig.7-6)
Fig.7-6
Standard thickness:mm(in)
2.5±0.09
(0.098)
Usable limit:mm (in) 2.2(0.087)
7-5
4) Wheel shaft
Check the shaft for abnormalities like wear,
damage, etc, and replace a defective one.
5) Bearings
Check them for abnormalities like hitching,
irregularity, etc. in rotation after being washed
clean. Replace defective ones.
6) Oil seals
Removed oil seal should be replaced with a new
one when reassembled.
1.3 REASSEMBLY.
Reassemble the parts in reverse order of
disassembly, follow these precautions.
1) Make sure that oil grooves, friction surfaces,
etc of the brakes are free from matter such as
dust, iron powder,etc.to avoid brake lining
damage.
2) When installing the brake unit on the wheel
pinion, friction plates and separator plates
should be arranged in correct order.
and the position of the oil hole to the friction
plates should be aligned in a same row
(Refer to the Fig 7-4) and never forget to
retain the unit with the snap ring.
3) Brake cover tightening bolts should be
tightened to the specified torque with a torque
wrench. (Fig.7-7)
Tightening torque
1
5.5-7 Kgf.m
(39.8-50.6ft-lbs)
2 10-12kgf.m
Fig.7-5
Fig.7-7
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