DISASSEMBLY AND ASSEMBLY WHEEL BRAKE
EX20 Series 40-45
WHEEL BRAKE
FD100/115
Symbol Inspection item
Judgement standard
Remedy
Standard size (mm) Repair limit (mm)
A Lining Thickness 12.7 5.5
Replace
B Shoe return spring Strength
33 ± 3.3 kgf
( = 103.5 mm)
33 ± 3.3 kgf
( = 103.5 mm)
Free length: 93 mm (Reference)
C Wheel cylinder
Clearance
between piston
and cylinder
0.025–0.126 0.025–0.126
Clacks, chips, rust
D Back plate Damage, bending
Inside diameter of brake drum 393.7 396.5
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