Brake Adjustment

3. While holding in locking collar, rotate adjusting screw

37. Install cap-to-carrier "O" ring seal in groove in sun

clockwise until 20 ft. lbs. torque is indicated on torque

gear thrust cap assembly. Install thrust cap on

wrench (Fig. 192).

planet carrier. Make certain that "O" ring, if used, is

properly positioned in the groove in the mounting

face, and is not twisted. Apply light coat of

Permatex No. 2 to threads of bolts and install.

Tighten to specified torque (Fig. 191).

NOTE: Early versions of some axles -did not include

"O" ring feature. On these units, apply light coat of

Permatex No. 2 on mounting face of thrust cap be-

fore installing on planet carrier.

4. Back off adjusting screw one-half turn. Locking collar

should automatically return to locking position to lock

adjustment when socket is removed. This provides

proper brake lining-to-drum clearance.

5. After axle is assembled into machine and brake air

lines are connected, recheck broke adjustment as

follows: With minimum air pressure and with brakes

fully activated and applied, adjust at slack adjuster to

obtain 1 1/2 inch travel on brake chamber push rod

when brakes are released. Adjust all slack adjusters on

machine for same travel distance.

Adjust brakes of axle models that have slack adjusters

positioned so that adjusting screw points away from air

chamber bracket as follows:

Brake Adjustment

6. Use 9/16-inch, open-end wrench to make adjustment.

NOTE: Some axle models have slack adjuster posi-

Position wrench on adjusting screw and push in until

tioned so that adjusting screw is adjacent to air cham-

locking collar releases adjusting screw (Fig. 193).

ber bracket (Fig. 192). Others have slack adjuster

positioned so that adjusting screw points away from

air chamber bracket (Fig. 193).

Adjust brakes of axle models that have slack adjusters

positioned so that the adjusting screw is adjacent to the

air chamber bracket as follows:

1. Use torque wrench and 9/16 inch socket to adjust

slack adjusters to attain correct brake lining-to-brake

drum clearance.

2. Position socket on adjusting screw and press it on

screw far enough to cause locking collar to disengage

locking mechanism.