Brake--Rear brake assembly
Use screw driver to disassemble oil seal of piston from brake
branch pump.
Note: do not damage cylinder wall and slot.
- Disassemble exhaust bolt of branch pump.
- Check whether there is any dust or scratch on
branch pump and piston.
- Check the thickness of brake block.
Use rule to measure the thickness of brake block.
Standard thickness: 10.0mm
Minimal thickness: 1.0mm
- Check the thickness of brake disk.
Use centimeter of exterior diameter to measure the thickness
of disk.
Standard thickness: 9.0mm
Minimal thickness: 8.0mm
- Disassemble rear brake disk.
(a) Make a mark on disk and shaft hub.
(b) Disassemble disk.
- Assemble brake disk.
Hint: choose the position with minimal terminal run-out
to assemble brake disk.
- Check the terminal run-out of disk.
(a) Lock the disk temporarily with screw cap of shaft hub.
Torque: 103-10 N⋅⋅⋅⋅⋅m
(b) Use centimeter to measure the terminal run-out of brake
disk on the position with 10mm apart from the exterior edge
of brake disk.
Maximal run-out quantity: 0.15mm
(c) If terminal run-out of brake disk exceeds or equals to maxi-
mal value, firstly, check the axial clearance of bearing, then
check the terminal run-out of shaft hub, if they are both
normal, adjust the terminal run-out of brake disk to eligible
value or use turning motor to turn terminal surface of brake
disk.
- Lock exhaust bolt of rear brake branch pump
temporarily.
Lock exhaust bolt to rear brake branch pump temporarily.
- Assemble oil seal of piston.
(a) Spread lithium soap base glycol lubricating grease on new
oil seal of piston.
(b) Assemble oil seal of piston to brake branch pump.
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