PLATE-SIDE 5422169 - Caterpillar

Specification
Table 1
Compensator Settings    
Machine     Number of turns out     Tolerance (1)    
12M     2 Turns + 60°     60 °    
120M / 120M Series 2     2 Turns + 60°     60 °    
140M / 140M Series 2     2 Turns + 60°     60 °    
160M / 160M Series 2     2 Turns + 60°     60 °    
14M     2 Turns + 60°     60 °    
16M     4 Turns + 60°     60 °    
24M     N/A (2)    
( 1 ) Tolerance is measured in degrees of rotation of the adjustment knob
( 2 ) The 24M is equipped with a hydraulic slack adjuster
Table 2
Possible Brake Plate Warpage    
Machine     Suspect Warpage    
12M     less than one turn    
120M / 120M Series 2     less than one turn    
140M / 140M Series 2     less than one turn    
160M / 160M Series 2     less than one turn    
14M     less than two turns    
16M     less than two turns    
24M     N/A (2)    
( 2 ) The 24M is equipped with a hydraulic slack adjusterIntroduction
This test determines the amount of wear to the brake discs, which determines if the brake pack needs to be replaced. The test may also indicate brake plate warpage, which indicates overheating of the system. The adjustment keeps piston travel to a minimum.Reference Refer to the Systems Operation, "Service Brakes" for additional information concerning the Compensator.Compensator (4) is preset at the factory. The factory setting will allow compensator (4) to travel a predetermined amount prior to hitting nut (3) .Note: This test is only valid when piston (2) is fully compressed against brake pack (1) .Required Tooling
Tooling is not required for this procedure.Test Preparation
Lower all implements to the ground. and chock the rear wheels and set the parking brake.Perform the Test Procedure
Illustration 1 g03321593
Cut-away of the brakes
Depress the brake pedal in order to compress piston (2) fully against brake pack (1) .
Loosen nut (3) completely, until the nut contacts the head of compensator (4) .
Turn compensator (4) in by hand until the compensator (4) contacts piston (2) .Note: If compensator (4) can be turned in completely and does not contact piston (2) , then brake pack (1) must be replaced. If compensator (4) contacts piston (2) , proceed to the , "Adjustment Procedure" in this article.Note: If compensator (4) contacts piston (2) in less number of turns that are reflected in the table, then the brake plates may be warped. Refer to Table 2.Adjustment Procedure
Back off compensator (4) according to the specifications that are reflected in the table. Refer to Table 2.
Hold compensator (4) in position from Step 1.
Tighten the nut (3) to 65 10 N m (48 7 lb ft).