Section XX. BRAKES - TM-10-3930-630-120106

TM 10-3930-630-12

(e) Install hub cap (3) and secure with

(d) Refer to b. above to adjust wheel bearings.

screws (1) and lockwashers (2).

Rotate wheels by hand. Torque wheel nuts (5) to 50

(f) Lower jack and remove jack and

pound-feet (67.7 N.m), rotating wheel six times in each

direction. Back off nut and re-torque to 25 pound-feet

blocks from truck.

(33.8 N.m). Install cotter pin (4).

Section XX. BRAKES

4-86.

General

4-87.

Service Brake Pedal and Linkage

a. The brakes on the fork lift truck consist of two

a Adjustment. Pedal free play should be adjusted

systems; a lever operated parking brake on the drive

to one-half inch (12.7 mm) to allow master cylinder to

shaft and service brakes on the two front wheels.

return to released position and reduce unused length

b. The parking brake is a dual-shoe mechanical

of stroke in the master cylinder.

(1) Remove the floor and toe plates.

operated type. When the lever in the truck is pulled to

(2) Slowly depress brake pedal (Fig. 4-69) and

the rear the brake shoes are forced outward against the

check free travel. Observe push rod action at master

brake drum. This pressure keeps the shaft from

cylinder.

rotating, locking the front wheels and holding the truck in

(3) If free travel is more or less than one-half

position.

c. The service brakes are hydraulically actuated

inch (12.7 mm), loosen lock nut on clevis at master

cylinder and remove cotter pin and clevis pin and

through a pedal and master cylinder. Depressing the

disconnect clevis from pedal.

pedal operates the master cylinder sending hydraulic

(4) Adjust clevis on operating rod to bring

pressure to the wheel cylinders. The wheel cylinders

pedal travel to correct limits.

are the double end type and hydraulic pressure extends

(5) Tighten lock nut. Connect clevis to brake

the ends of the cylinder pivoting the brake shoes against

pedal and install clevis pin and cotter pin. Check pedal

the brake drum inside the wheel The pressure of the

travel and adjust if necessary to bring travel within limits

master cylinder also closes the stop light switch and

specified.

operates the stop light. When the pedal is released,

(6) Install floor and toe plates.

springs return the pedal and brake shoes to the released

b. Removal

position. The brakes are self-adjusting.

(1) Remove floor and toe plates.

(2) Refer to paragraph 4-90 and remove

master cylinder.

(3) Disconnect return spring (17, Fig. 4-70) and

remove pin (16).

(4) Remove screws (18) and lockwashers (19)

and remove bearings (20) from frame. Remove pedal

(23) from frame.

(5) If worn or damaged, remove pad (22) from

pedal

c. Installation.

(1) If pad (22, Fig. 4-70) was removed, glue

new pad

on pedal.

(2) Install shaft of pedal (23) in bearings (20)

and secure bearings (20) to frame with screws (18) and

lockwashers (19).

(3) Attach spring (17) to pedal and pin (16).

(4) Refer to paragraph 4-90 and install master

cylinder.

(5) Install floor and toe plates.

4-88. Service Brakes

a. General. The service brakes are mounted in

the front wheels. The brakes are self-adjusting.

Figure 4-69. Service brake pedal adjustment

b. Removal

(1) Refer to paragraph 4-85 and remove front

wheel

4-78