Linhai LH50DU Owner's/Operator's Manual page 97

12. MAINTENANCE
The following checks are recommended to keep the brake system in
good operating condition. How often they need checking depends upon
the type of driving that has been done.
 Keep fluid level in the master cylinder reservoirs as described see
"7.Control and part functions". Normal functioning of the diaphragm is to
extend into the reservoir as fluid lever drops. If the fluid lever is low and
the diaphragm is not extended, a leak is indicated and the diaphragm
should be replaced. Always fill the reservoir as indicated whenever the
cover is loosened or removed to insure proper diaphragm operation.
Use DOT 3 brake fluid.
 Check brake system for fluid leaks.
 Check brake for excessive travel
or spongy feel.
 Check friction pads for wear,
damage and loosened.
 Check security and surface
condition of the disc.
 Pads should be changed when
friction material is worn to 3/64"(1mm).(A)
Rear Brake
 The rear brake is a hydraulic disc type brake which is activated by
the same pedal which activates the front brake system is self
adjusting and requires no maintenance other than periodic checks
of the pads for wear
 Pads should be changed when the friction material is worn to
3/64"(1mm).
 Inspect the brake disc and pad wear surface for excessive wear.
Checking the brake fluid level
Insufficient brake fluid may let air enter
the brake system, possibly causing the
brakes to become ineffective. Before
riding, check that the brake fluid is above
OWNER'S/OPERATOR'S MANUAL
LH50DU 1.0
12- 15