Rear shock absorber
Composition of rear shock absorber
Fault diagnosis and on - board maintenance
a.
Fault diagnosis
Problem
Cause
Treatment method
Rear shock absorber oil leakage
Rear shock stuck
Rear shock absorber become soft Main spring damage
Rear shock absorber become hard Main spring damage
3.
Check
Upper nut
48N
Lower nut
30N
29
1.Bushing
2.Upper joint cushion rubber
3.Upper joint
4.Hexagon nut
5.Cushion rubber
6.Damping spring
7.Piston rod
8.Adjusting seat
9.Hydraulic damper assembly
10.Lower ring cushion rubber
11.Lower ring cushion rubber
The oil seal is damaged
Inside of the oil drum is worn
The seal is damaged
Oil seal baffle is damaged
Inside of the oil drum is worn
The piston assembly is damaged
The working cavity is made of sediment
The rear shock absorber
shall not be disassembled or
repaired to avoid affecting
the performance rear shock
absorber fork is found to be
damaged or not working
smoothly, contact Yadea
dealer for inspection or
replacement.
Rear shock
absorber lock nut
b.On - board maintenance
1.Open the seat cushion cover.
2.Remove seat.
.
●Rear shock absorber lock nut: loosening → tightening
●Oil leakage/cracking/damage/scratch/spring failure → replacement
●Hold the rear armrest with both hands and compress the rear shock absorption up and down several
times. such as bad action (stuck, bottom, etc.) → replacement
• The rear shock absorber cannot be disassembled or repaired to avoid affecting perfor-
mance.
• The shock absorption can not be adjusted preload, although the external spring support
seat is threaded, the design is mainly for appearance and the connection of the lower lifting
lug to the oil storage drum.
• The rear shock absorber fork is found to be damaged or not working smoothly, contact
yadea dealer for inspection or replacement.
Vehicle body parts
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