HARNESS AS-CHASSIS 3798483 - Caterpillar

Personal injury or death can result if two persons are not used in the following procedure.
Personal injury or death can result from a parking brake malfunction. Do not operate the machine if the parking brake does not function correctly.Be sure the parking brake components are adjusted correctly before attempting to return the machine to service.
Personal injury or death can result from sudden machine movement.Sudden movement of the machine can cause injury to persons on or near the machine.Prevent possible injury by performing the procedure that follows before working on the machine.
Specifications
Table 1
950H and 962H Parking Brake Actuator Pressure    
Date     Equipment ID Code     Actual    
Pressurized Actuator    
12500 to 15000 kPa (1800 to 2200 psi)        
Maximum Pressurized Actuator (1)    
25000 kPa (3600 psi)        
( 1 ) Do Not ExceedIntroduction
This information includes the following adjustment procedure:
Parking Brake Actuator - AdjustAdjustment Preparation
Park the machine on a smooth level surface.
Place the transmission control in the NEUTRAL position.
Lower the bucket and/or any work tools to the ground.
Engage the parking brake.
Shut off the engine.
Place blocks in front of the wheels and behind the wheels.
Illustration 1 g02946876
Steering frame lock in LOCKED position
Install the steering frame lock.
Allow only authorized personnel on the machine. Keep unauthorized personnel off the machine and in clear sight of the operator.
Disengage the parking brake.Adjustment Procedure
Remove the front drive shaft from the transmission output shaft yoke.
Illustration 2 g00479070
Front View of the Parking Brake (A) Disengaged dimension for the parking brake. (1) Starwheel. (2) Access hole. (3) Brake drum. (4) Lever. (5) Splined shaft. (6) Bolt holes for the brake drum.
Remove eight bolts (6) that hold brake drum (3) on to the drive shaft yoke, allowing the rotation of brake drum (3) for correct adjustment.
Access starwheel (1) through access holes (2). Rotate starwheel (1) until the brake shoes press against the brake drum. The brake shoes must cause enough drag so that the drum (3) cannot be rotated by hand. Then rotate starwheel (1) in the opposite direction by 12 clicks.
Push up on lever (4). Dimension (A) is measured from the centerline of lever (4) to the bottom mounting hole of the bracket assembly for parking brake actuator. Dimension (A) equals 56 15 mm (2.2 0.6 inch).Note: In order to adjust lever (4), remove lever (4) from the splined shaft (5). Rotate lever (4) about splined shaft (5) in order to achieve dimension (A) .
Install eight bolts (6) that hold brake drum (3) on to the drive shaft yoke.
Install the front drive shaft.
Illustration 3 g00483368
Right Side View of the Parking Brake (B) Engaged dimension for parking brake. (4) Lever. (7) Actuator. (8) Nut. (9) Rod. (10) Yoke. (11) Cotter. (12) Clevis pin.
Without applying pressure to actuator (7), adjust rod (9) to equal dimension (B). Dimension (B) equals 95.0 mm (3.74 inch).
Start the engine. Operate the engine until actuator (7) is pressurized to a minimum of 14830 kPa (2150 psi). At this pressure, rod (9) fully extends.Note: The parking brake