140 Motor Graders Caterpillar

Service Brake

Usage:

140 N94

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Illustration 1	g06353109

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Table 1
Item	Qty	Part	Specification Description
1	1	3J-1907 O-Ring Seal	Before assembly, lubricate lightly with the lubricant that is being sealed.
2	1	6H-9691 O-Ring Seal	Before assembly, lubricate lightly with the lubricant that is being sealed.
3	1	151-6251 D-Ring Seal	Before assembly, lubricate lightly with the lubricant that is being sealed.
4	1	163-7234 D-Ring Seal	Before assembly, lubricate lightly with the lubricant that is being sealed.
5	4	163-8781 Spring	Length under test force is 48.9 mm (1.92 inch).
			Test force is 650 ± 33 N (146 ± 7 lb).
			Free length after test is 64.02 mm (2.520 inch).
6	1	4S-5879 O-Ring Seal	Before assembly, lubricate lightly with the lubricant that is being sealed.
7	16	235-9631 Bolt	Before assembly, apply red loctite 263 to the threads. Torque to 270 ± 40 N·m (199 ± 29.30 lb ft).
8	1	5H-3701 Purge Screw	Torque to 12 ± 3 N·m (105 ± 27 lb in).
9	Thickness of seven new plate and six new friction discs is 34.970 ± 0.928 mm (1.3768 ± 0.0365 inch).
	7	284-9557 Plate	Thickness of one plate is 1.910 ± 0.064 mm (0.0752 ± 0.0025 inch).
	6	351-0925 Friction Discs	Thickness of one disc is 3.60 ± 0.08 mm (0.142 ± 0.003 inch). The minimum reusable thickness for one disc is 3.43 mm (0.135 inch).
10	-	-	The seals and all of the surfaces that are contacting the seals must be clean and dry at assembly. Apply a thin film of oil to the metal seal ring prior to assembly.
11	As required, use the following shims to maintain proper bearing preload
	1	7D-8441 Shim	Thickness of one shim 0.13 mm (0.005 inch).
	4	7D-8439 Shim	Thickness of one shim 0.18 mm (0.007 inch).
	4	9D-7047 Shim	Thickness of one shim 0.51 mm (0.020 inch).
12	3	6V-3303 Bolt	Before assembly, apply red loctite 263 to the threads. Torque to 270 ± 40 N·m (199 ± 29.30 lb ft).
13	1	8T-1159 Bolt	Torque to 60 ± 12 N·m (44 ± 9 lb ft).
14	1	4I-0755 Nut	Use the following procedure to tighten the bolts. 1. Compensator bolt should be installed initially. 2. Ensure the piston in the Retracted position. 3. Hold the compensator bolt and tighten the nut to 50 ± 10 N·m (37 ± 7 lb ft).
15	1	8F-9538 O-Ring Seal	Before assembly, lubricate lightly with the lubricant that is being sealed.