325C LCR Excavator Machine Systems Caterpillar

Main Control Valve - Install

Usage:

325C BKW

Installation Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	138-7573	Link Bracket	2

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NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

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NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates.

Note: Cleanliness is an important factor. Before assembly, all parts should be thoroughly cleaned in cleaning fluid. Allow the parts to air dry. Wiping cloths or rags should not be used to dry parts. Lint may be deposited on the parts which may cause later trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement.

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Illustration 1	g01178484

Position main control valve assembly (12) and install bolts (26) .

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Illustration 2	g01178483

Attach Tooling (A) and a suitable lifting device to main control valve assembly (12). The weight of main control valve assembly (12) is approximately 231 kg (510 lb).

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Illustration 3	g01178482

Connect manifolds (22) and (20). Connect hose assemblies (25), (23), and (21). Connect all pilot hose assemblies (24) to the bottom of main control valve assembly (12) .

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Illustration 4	g01178481

Connect manifold (19). Connect hose assemblies (18), (17), and (16) .

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Illustration 5	g01178480

Connect hose assemblies (15), (14), and (13). Connect all pilot line hose assemblies (11) to the top of main control valve assembly (12) .

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Illustration 6	g01178479

Connect harness assembly (10). Install new cable strap (9) .

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Illustration 7	g01178478

Attach Tooling (A) and a suitable lifting device to support assembly (8). The weight of support assembly (8) is approximately 61 kg (135 lb). Install support assembly (8) .

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Illustration 8	g01178477

Reposition harness assembly (7) and install new cable straps (6) .

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Illustration 9	g01178476

Connect harness assembly (5). Install front light (4) .

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Illustration 10	g01178475

Install covers (3) .

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Illustration 11	g01178474

Install bracket (2) and cover (1) .

Turn the battery disconnect switch to the ON position.

Fill the hydraulic system. Refer to Operation and Maintenance Manual, "Hydraulic System Oil Level - Check". Refer to Operation and Maintenance Manual, "Lubricant Viscosities and Refill Capacities".