Brake--Front brake assembly
- Check the brake branch pump and piston
Check whether there is rust or scratch in cylinder of branch
pump and piston.
- Check the thickness of brake block
Use rule to measure the thickness of brake block.
Standard thickness: 11.00mm
Minimal thickness: 1.0mm
- Check support sheet of brake block
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Confirm the support sheet could rebound enough without any distortion, crack or abrasion, and it has
removed rust, dust and sundries completely.
- Check the thickness of brake disk
Use centimeter to measure the thickness of brake disk.
Standard thickness: 25.00mm
Minimal thickness: 23.0mm
- Disassemble front brake disk
(a) Make a mark on corresponding position of brake disk and shaft hub.
(b) Disassemble brake disk.
- Assemble brake disk
Hint: choose the position with minimal terminal run-out quantity to assemble brake disk.
- Check the terminal run-out of brake disk
(a) Lock the brake disk temporarily with shaft hub nut.
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: 0.05mm
(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 temporarily
Lock exhaust bolt temporarily on front brake branch pump.
- 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 on brake branch pump.
Note: do not force piston to assemble in branch pump compulsively.
- Assemble piston of front brake branch pump
(a) Spread lithium soap base glycol lubricating grease on the piston.
(b) Assemble piston on brake branch pump.
Note: do not force piston to assemble in branch pump compulsively.
