Precautions In Operation - Sym JET 4 R 50 Series Service Manual

Maintenance Information

Precautions in Operation

Caution
Inhaling brake lining ashes may cause disorders of respiration system, therefore, never use air hose or
dry brush to clean brake parts. Use vacuum cleaner or other authorized tool instead.
The brake caliper can be removed without removing the hydraulic system.
After the hydraulic system is removed, or the brake system is felt to be too soft, bleed the hydraulic
system.
While refilling brake fluid, care should be taken not to let the foreign material entering into the brake
system.
Do not spill brake fluid on the painted surfaces, plastic or rubber parts to avoid damage.
Check the operation of the brake system before you go.
Specifications
The thickness of front brake disc
Front brake disc run-out
brake master cylinder inner diameter
brake master cylinder piston outer diameter
OD of front brake disc
ID of rear brake drum
Thickness of front brake lining
Torque values
Brake hose bolt
Bolt for brake caliper
Bolts for the brake disc
Nuts for the front wheel axle
Nuts for the rear wheel
Bolt for rear brake arm
Rear brake lever nuts
Brake master cylinder mounting bolts
Item
3.3~3.7kgf-m
2.4~3.0kgf-m
2.4~3.0kgf-m
5.0~7.0kgf-m
11.0~13.0kgf-m
0.8~1.2kgf-m
0.8~1.2kgf-m
1.0~1.4kgf-m
12. Brake System
Standard (mm)
4.0
< 0.10
12.700 ~ 12.743
12.657 ~ 12.684
190.0
110.0
4.0
12-3