973 K Track-Type Loaders Caterpillar

Piston Pump (Implement)

Usage:

973 MKL

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Illustration 1	g06273850

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Table 1
Item	Qty	Part	Specification Description
-	-	-	Rotation is Clockwise. Rated speed is 1900 rpm. Maximum displacement per revolution for the front pump 95 cc (5.8 cubic inch). Maximum displacement per revolution for the rear pump 95 cc (5.8 cubic inch). Maximum system pressure is 28000 kPa (4061 psi) Cut off pressure is 30000 ± 350 kPa (4351 ± 51 psi). Margin pressure is 2000.0 ± 100.0 kPa (290.0 ± 14.4 psi).
1	2	6V-8201 Bolt	Torque to 176 N·m (130 lb ft).

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Illustration 2	g06273821
300-9481 Piston Pump Gp

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Table 2
Item	Qty	Part	Specification Description
2	4	6V-8201 Locking Bolt	Torque to 250 ± 40 N·m (184 ± 30 lb ft).
3	1	105-1635 Spring	Free length is 171.4 mm (6.75 inch).
4	1	105-1636 Control Cylinder	Torque to 180 ± 18 N·m (133 ± 13 lb ft).
5	1	367-7720 Control Guide	Torque to 180 ± 18 N·m (133 ± 13 lb ft).
6	1	105-1651 Spring	Free length is 102.7 mm (4.04 inch).

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Illustration 3	g06273822
Detailed view of area C

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Table 3
Item	Qty	Part	Specification Description
7	2	-	Tighten the bolts to 12 N·m (106 lb in).
8	2	-	Tighten the nuts to 21 N·m (186 lb in).

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Illustration 4	g06273825
300-9482 Piston Pump Gp

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Table 4
Item	Qty	Part	Specification Description
9	1	9S-4183 Plug	Torque to 100 ± 10 N·m (74 ± 7 lb ft).
10	1	105-1651 Spring	Free length is 102.7 mm (4.04 inch).
11	1	367-7719 Control Guide	Before assembly, apply Loctite 243 to the threads. Torque to 180 ± 18 N·m (133 ± 13 lb ft).
12	1	105-1638 Spacer	Grind to required thickness with faces parallel within 0.05 mm (0.002 inch). Thickness is 3.0 mm (0.12 inch).
13	4	6V-8201 Locking Bolt	Torque to 310 ± 40 N·m (229 ± 30 lb ft).
14	1	105-1635 Spring	Free length is 171.4 mm (6.75 inch).
15	1	105-1636 Control Cylinder	Before assembly, apply Loctite 243 to the threads. Torque to 180 ± 18 N·m (133 ± 13 lb ft).

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Illustration 5	g06273826
Detailed view of area G

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Table 5
Item	Qty	Part	Specification Description
16	2	-	Tighten the bolts to 12 N·m (106 lb in).
17	2	-	Tighten the nuts to 21 N·m (186 lb in).

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