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BRAKES
23
INSPECT BRAKE SHOE / LINING:
To maintain the efficiency of the brake system,
preventive maintenance is essential.
At specified interval remove the brake drum and
check the lining for wear. The lining must not be
allowed to wear down below 1 mm from rim
surface. Increased foot pedal travel and hand
brake lever movement is an indication that
automatic adjustment mechanism has reached its
end.
The lining shoes need replacement in pair on both
sides of the axle. Always fit new shoe return
spring when fitting new shoe.
Do not polish lining with sandpaper or emery
paper. If lining is polished with sandpaper or
emery, hard particles of sandpaper will be
deposited on the lining resulting in damage of
drum surface.
Whenever lining is to be corrected, replace it with
the new one. Always use genuine grade of
service replacement lined shoes. Do not
contaminate the lining surface with oil or grease.
OVERHAULING OF WHEEL CYLINDER
Overhaul the wheel cylinder at specified interval.
In any case, after a specified interval, the wheel
cylinder should be replaced. The wheel cylinder
may be serviced using parts from appropriate
repair kit, provided the plunger and the bore are in
good condition without any damage.
INSPECTION OF WHEEL CYLINDER
Examine the wheel cylinder bore and the piston. If
they are not scored, corroded or ridged and are
smooth to touch, new seals can be fitted. If there
is any doubt about the condition of the bore, a
new cylinder must be installed.
Inspect the wheel cylinder dust cover for cuts,
cracks, hardening or other sign of deterioration. If
in doubt, replace the dust cover. If the system has
been contaminated with mineral oil of any type,
the system should be flushed out with fresh brake
fluid or alcohol and all rubber parts including
hoses should be replaced.