LGMG MT86 - Page 93

MT86 Operation and Maintenance Manual
87
Failure Analysis of Shock Absorber
Failure mode
Analysis and solution
The shock absorber is out of
work, and there is no
resistance inside (the shell
temperature is not high
enough)
Refill appropriate grease and
then proceed with operation.
If the surface is hot, the
grease is insufficient. At this
moment, refill it. Otherwise,
the shock absorber must
have failed. Check if damage
to the oil seal and the sealing
washer causes oil leakage. If
so, change the washer.
The shock absorber makes a
noise
It is resulted from collision
of shock absorber, steel leaf
spring and frame,
deformation of shock
absorber dust-proof tube or
insufficient grease. Replace
the shock absorber or refill
grease.
shock absorber, stop block and front
push-rod,
1) Specifications of fasteners
Application
MT86
Specification
Tightening
torque
*
(Nm)
Front spring U-bolt and nut
M24
750±50
Spring bracket fixing bolt
and nut
M18×1.5
373±37
Wear-resistant block fixed
screw
M12×1.25
85±8
Shock absorber upper
bracket fixing bolt and nut
M12×1.25
85±8
Shock absorber connecting
upper bracket bolt and nut
M16×1.5
262±26
Shock absorber lower
bracket fixing bolt and nut
M16×1.5
220±22
Shock absorber connecting
lower bracket bolt and nut
M16×1.5
262±26
Stop block bracket fixing
bolt and nut
M16
220±22
Wear-resistant block fixed
bolt and nut
M12
85±8
* indicates recommended value, and the
permissible tolerance is within 6%. To
ensure driving safety, it is required
to regularly check the tightening
torque of