D3K, D4K and D5K Track-Type Tractors Machine Systems Pump Drive Coupling - Remove and Install Caterpillar

Removal Procedure

Start By:

1. Remove the engine.

42 Tooth Coupler

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Illustration 1	g01358906

1. Remove bolts (1) . Remove nylon flange (2) .

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Illustration 2	g01358911

2. Loosen bolt (3) . Remove hub (4) .

Installation Procedure

42 Tooth Coupler

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Illustration 3	g01358911

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Illustration 4	g01423035

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Illustration 5	g01358924

1. Install hub (4) and tighten bolt (3) . Tighten bolt (3) to a torque of 86 ± 7 N·m (63 ± 5 lb ft).

Note: If the pumps are installed on plate (5) , Dimension (X) is measured from the engine side of plate (5) .

2. The Distance (X) from plate (5) to hub (4) is 44.7 ± 0.5 mm (1.76 ± 0.02 inch).

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Illustration 6	g01358906

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Illustration 7	g01423049

3. Install nylon flange (2) . Install bolts (1) .

4. Place straight edge (6) across the flywheel housing. The distance between nylon flange (2) at Surface (Z) and straight edge (6) is 26.7 mm (1.05 inch).

End By: Install the engine.

Removal Procedure

Start By:

1. Remove the engine.

6 Tooth Coupler

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Illustration 8	g02796519

1. Remove bolts (1) . Remove nylon flange (2) .

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Illustration 9	g02987041

2. Loosen bolts (4) . Remove hub (3) .

Installation Procedure

6 Tooth Coupler

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Illustration 10	g02987139
(Y) 13.7 mm (0.54 inch) from the pump shaft to the outer face of hub (3) .

1. Install hub (3) to Dimension (Y) .

2. Tighten bolts (4) to a torque of 49 ± 2 N·m (36 ± 2 lb ft) in the following sequence: 1-2-1-2.

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Illustration 11	g02796519

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Illustration 12	g02857565

3. Install nylon flange (2) with webbing facing the engine. Install bolts (1) . Tighten bolts (1) in the alternating pattern of 1-2-3-4-5-6-7-8, as shown in Illustration 12.

End By: Install the engine.