Operational Precaution; Trouble Diagnosis - Sym HD 125 Service Manual

16. REAR WHEEL / REAR FORK / REAR CUSHION

Operational Precaution

General
Please refer to the Maintenance Manual for tubeless tire in respect to the removal, repair and installation
of the tires.
Service data
Run-out of rear rim
Thickness of rear brake lining
Sustaining stroke of rear cushion
Torque Value
Rear wheel shaft nut
Rear cushion upper bolt
Rear cushion under bolt
Rear fork mounting bolt
Exhaust muffler mounting nut
Exhaust muffler mounting bolt

Trouble Diagnosis

Run-out of rear wheel
Deformed or bent wheel hub.
Improper tires.
Loose wheel shaft.
Soft Cushion
The spring is too weak.
Noisy Brake
Worn brake lining.
Offset brake disc.
Improper assembly of brake caliper.
Brake disc or wheel imbalance.
16-2
To this chapter contents
Item
Radial
Axial
10.0~12.0kgf-m
3.5~4.5kgf-m
2.4~3.0kgf-m
4.0~5.0kgf-m
1.0~1.2kgf-m
3.2~3.8kgf-m
Standard
-
-
5.1
72
Poor Performance of Brake
Improperly adjusted brake.
Contaminated brake disc.
Worn brake lining.
Air inside brake fluid pipe.
Grease on brake disc.
The brake fluid piping is clogged.
The brake fluid pipe is deformed or bent.
Insufficient amount of brake fluid in the
reservoir.
Unit: mm
Allowable Limit
2.0
2.0
2.0
-