Yadea C1S, Service Manual

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Frame & Chassis
42
Operation
Order
Operation Name/parts Name Quantity Note
1 Brake Pad Guide Pin Bolt 1
2 Brake Pad Dust-proof Cover 1
3 Brake Pad 2
4 Brake Pad Reed 1
5 L/R Pump Body Bolts 2
6 Oil Channel Sealing Ring 2
7 Left Pump Body 1
8 Right Pump Body 1
9 Exhaust Screw 1
10 Piston 2
11 Piston Dust -proof Seal 2
12 Piston Oil Seal 2
When installing, please proceed in the reverse order of disassembly.
• Before disassembling the caliper, please first discharge the brake fluid in the master cylinder, oil pipe and caliper, and
remove the oil pipe
When disassemble the caliper piston, blow the oil passage hole with compressed air, so that the piston is sent out by air.
Check the wear of the brake pads. If the wear limit is exceeded, replace the front wheel solidity limit. Vertical: 1.0mm
Horizontal: 1.0mm.
Trouble Check for Brake Failure
Number Possible cause of failure Repair method Note
1 Worn brake pads Replacement beyond wear limit
2 Worn dist brake Replacement beyond wear limit
3 Air enters brake fluid Exhaust air
For the CBS configuration, this
operation requires the use of
special tools (vacuum pump) to
exhaust the air.
4 Insufficient brake fluid Add brake fluid above the lower limit
5 The main pump thruster fails
Replace the main pump thruster
components (professional person) Replace the main pump
assembly (professional person)
6 Caliper oil seal failure Replace oil seal (professional person)
Replace caliper assembly
(professional person)
7 Exhausting air bolts loosen Fastening bolt
8 Damaged brake oil pipe Replace oil pipe
9 Oil or butter attached to brake pads Wash brake pads
After the maintenance and replacement of No. 3, 5, 6, 8 , air release operation is required.