938G Series II Wheel Loader and IT38G Series II Integrated Toolcarrier Braking System Caterpillar

Illustration 1	g00103511
End View of the Service Brakes

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View A-A

(1) Thickness of a new 4E-2168 Piston ... 42 ± 0.13 mm (1.65 ± .01 inch)

(2) Thickness of a 6Y-2082 Friction Disc

New disc ... 9.1 ± 0.13 mm (.358 ± .005 inch)

Worn disc ... 7.65 mm (.301 inch)

(3) Thickness of new 9C-6329 Reaction Plate ... 16 ± 0.13 mm (.63 ± .01 inch)

Reference: For more information on measuring the thickness of a friction disc, refer to Testing and Adjusting, "Service Brake Wear Indicator - Check" for the machine that is being serviced.

Illustration 3	g00917954
View B-B

(4) 4E-2167 Springs (two)

Length under test force ... 20.5 mm (.81 inch)

Test force ... 292 N (65.6 lb)

Free length after test ... 26.22 mm (1.03 inch)

Outside diameter ... 22.47 mm (.88 inch)

Illustration 4	g00917959
Detail C

(5) 4E-2167 Spring

Length under test force ... 20.5 mm (.81 inch)

Test force ... 292 N (65.6 lb)

Free length after test ... 26.22 mm (1.03 inch)

Outside diameter ... 22.47 mm (.88 inch)

(6) Apply 4C-9507 Retaining Compound to the outside diameter of the dowel prior to installation. Make sure that the dowel is against the bottom of the dowel hole.

(7) Torque for the bolt ... 0.45 ± 0.05 N·m (4.0 ± .4 lb in)

(8) Heavily lubricate the entire seal with the lubricant that is being sealed.

(9) Heavily lubricate the entire pin with the lubricant that is being sealed.