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49

BRAKES

PARKING BRAKE

Fig.50

The parking brake arrangement is a cable operated

system, acting on the rear wheels. It is operated by a

handle situated in the cab.When the handle is pulled

up, the parking brake lever inside the rear drumbrakes

is also pulled through the cable system. This action

expands the rear brake shoes against the drum, thus

applying the rear brakes.

Fig. 50 - Parking brake handle

1. Parking brake released

2. Parking brake applied

1. COIL SPRING

2. SLEEVE

3. PAWL ROD

4. LEVER

5. PAWL

6. RATCHET

7. CASTLE NUT

8. SPLIT PIN

SECTION - AA

Fig.51- Parking Brake Lever Construction

NOTE:

LATERAL PLAY AT FULCRUM TO BE MINIMUM POSSIBLE

(0.125 MM MAX.)

TO ADJUST THIS PLAY, TIGHTEN THE CASTLE NUT FULLY,

LOOSEN THE NUT TO MINIMUM EXTENT TILL THE HANDLE

IS FREE TO MOVE, ENGAGE THE SPLIT PIN AT THE NEAREST

HOLE ON THE BOLT AND BEND THE SPLIT PIN.

This is a safety device so that the parking brake does

not get released accidently.

To release parking brake, the lever is to be lifted

slightly and keeping button pressed, lever is to be

pushed down fully. When button is pushed as above,

pawl rod also get pushed, disengaging pawl from

ratchet, thus releasing the parking brake.

(30 mm)

BUTTON/KNOB