966G Series II Wheel Loader and 972G Series II Wheel Loader Power Train Caterpillar

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Section A-A for 129-4289 Brake and Planetary

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Section A-A for 143-5267 Brake and Planetary

Specifications for the 129-4289 Brake and Planetary

(1) Thickness of a new 130-5860 Friction Disc ... 5.41 ± 0.13 mm (.213 ± .005 inch)

(2) Thickness of a new 130-5866 Reaction Plate ... 8.08 ± 0.28 mm (.318 ± .011 inch)

Specifications for the 143-5267 Brake and Planetary

(1) Thickness of a new 141-2622 Friction Disc ... 4.65 ± 0.13 mm (.183 ± .005 inch)

(2) Thickness of a new 141-2369 Reaction Plate ... 6.00 ± 0.13 mm (.236 ± .005 inch)

Specifications for both the 129-4289 Brake and Planetary and the 143-5267 Brake and Planetary

(3) Planetary Gear and Sleeve Bearing

Inside diameter of planetary gear ... 92.267 ± 0.010 mm (3.6326 ± .0004 inch)

Outside diameter of sleeve bearing ... 92.112 ± 0.013 mm (3.6264 ± .0005 inch)

(4) Planetary Shaft and Sleeve Bearing

Diameter of planetary shaft ... 70.029 ± 0.010 mm (2.7570 ± .0004 inch)

Inside diameter of sleeve bearing ... 70.090 ± 0.039 mm (2.7594 ± .0015 inch)

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Section B-B

(5) 163-8781 Springs (two)

Length under test force ... 48.9 mm (1.93 inch)

Test force ... 650 ± 33 N (145 ± 7 lb)

Free length after test ... 64.02 mm (2.521 inch)

Outside diameter ... 25.05 mm (.986 inch)

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Detail D

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

(7) 163-8781 Spring

Length under test force ... 48.9 mm (1.93 inch)

Test force ... 650 ± 33 N (145 ± 7 lb)

Free length after test ... 64.02 mm (2.521 inch)

Outside diameter ... 25.05 mm (.986 inch)

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

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

(10) Lubricate the seal heavily with the lubricant that is being sealed.

(11) Lubricate the entire length of the pin heavily with the lubricant that is being sealed.

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Section E-E

(12) (13) Make sure that the openings for the spring pins are aligned 180 degrees from each other. The openings for the spring pins must be flush with the top of carrier.

(14) To ensure retention of the spring pins, deform the spring pin holes slightly with a chisel.