924K, 930K and 938K Wheel Loaders Electrohydraulic System Caterpillar

Main Control Valve

Usage:

938K HFW

347-2352 Main Control Valve Gp (2- Function)

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Illustration 1	g02775636
(1) 373-6972 Manifold and Relief Valve Gp (2) 373-6984 Manifold and Relief Valve Gp (4) Control valve group (tilt) (5) Control valve group (lift)

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Table 1
Specification for 347-2352 Main Control Valve Gp
Item	Qty	Part	Specification Description
3	3	-	Tighten the locknuts to 40 ± 2 N·m (30 ± 1 lb ft).

347-2353 Main Control Valve Gp (3- Function)

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Illustration 2	g02777856
(1) 373-6972 Manifold and Relief Valve Gp (2) 373-6984 Manifold and Relief Valve Gp (4) Control valve group (tilt) (5) Control valve group (lift) (6) Control valve group (auxiliary 1)

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Table 2
Specification for 347-2353 Main Control Valve Gp
Item	Qty	Part	Specification Description
3	3	-	Tighten the locknuts to 40 ± 2 N·m (30 ± 1 lb ft).

347-2354 Main Control Valve Gp (4-Function)

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Illustration 3	g02777896
(1) 373-6972 Manifold and Relief Valve Gp (2) 373-6984 Manifold and Relief Valve Gp (4) Control valve group (tilt) (5) Control valve group (lift) (6) Control valve group (auxiliary 1) (7) Control valve group (auxiliary 2)

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Table 3
Specification for 347-2354 Main Control Valve Gp
Item	Qty	Part	Specification Description
3	3	-	Tighten the locknuts to 40 ± 2 N·m (30 ± 1 lb ft).

373-6972 Manifold and Relief Valve Gp (1)

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Illustration 4	g02775656

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Table 4
Specification for 373-6972 Manifold and Relief Valve Gp
Item	Qty	Part	Specification Description
8	1	251-3268 Solenoid Valve Gp	Torque to 27.2 ± 1.4 N·m (240.7 ± 12.4 lb in). Torque the coil nut (10) to 6.5 ± 1.5 N·m (57.5 ± 13.3 lb in). Supply voltage is 24 V. Coil resistance at 20 °C (68 °F) is 33.8 ohms.
9	1	373-6990 Orifice Plug	Torque to 5 ± 1 N·m (44 ± 9 lb in).
11	1	373-6989 Relief Valve Gp	Torque to 12.5 ± 2.5 N·m (110.6 ± 22.1 lb in).
12	4	-	Torque the plug to 50 ± 5 N·m (37 ± 4 lb ft).
13	3	-	Torque the plug to 24.5 ± 3.5 N·m (216.8 ± 31.0 lb in).

373-6984 Manifold and Relief Valve Gp (2)

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Illustration 5	g02777776

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Table 5
Specification for 373-6984 Manifold and Relief Valve Gp
Item	Qty	Part	Specification Description
14	4	-	Torque the plug to 24.5 ± 3.5 N·m (216.8 ± 31.0 lb in).
15	1	359-7245 Relief Valve Gp	Torque to 40.0 ± 2.7 N·m (29.5 ± 2.0 lb ft).

Caterpillar Information System:

924K, 930K and 938K Wheel Loaders Electrohydraulic System Main Control Valve

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