Maintenance Description - Sym GTS 250 Service Manual

14. Brake System

Maintenance Description

Operational precautions
Caution
Inhaling asbestos may cause disorders of respiration system or cancer, 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 riding.
Specifications
The thickness of front brake disk
The thickness of rear brake disk
Front and rear brake disk eccentricity
Front brake master cylinder inner diameter
Front brake master cylinder piston outer diameter
Rear brake master cylinder inner diameter
Rear brake master cylinder piston outer diameter
Diameter of front disk
Diameter of rear disk
Thickness of front brake lining
Thickness of rear brake lining
Torque values:
Brake hose bolts
Bolt for front brake caliper
Brake lever nut
Air-bleed valve
14-2
To this chapter contents
Item
3.0~4.0kgf-m
2.9~3.5kgf-m
0.8~1.0kgf-m
0.8~1.0kgf-m
Standard
4.000
5.000
< 0.100
11.000~11.043
10.957~10.984
14.000~14.043
13.957~13.984
240.000
220.000
5.000
6.000
unit: mm
Limit
2.500
3.500
0.300
11.055
10.945
14.055
13.945
¢ w
2.000
2.000