994D Wheel Loader Machine System Caterpillar

Screen (Steering Return) - Install

Usage:

994D 3TZ

Installation Procedure

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NOTICE

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

Note: Verify that all of the components of the steering return screen are clean and free of foreign material prior to installation.

Note: Check all of the O-ring seals and the components for wear or damage. Replace the components, if necessary. Lubricate the O-ring seals lightly with the lubricant that is being sealed.

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Illustration 1	g00618123

Position base (4) to the plate. Install three bolts (10) and the washers that secure base (4) to the plate.

Connect hose assembly (9) to base (4). Connect tube assembly (8) to base (4) .

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Illustration 2	g00618121

Position wiring harness (6) to bypass switch (7). Install two hex flange nuts (5) that secure wiring harness (6) to bypass switch (7) .

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Illustration 3	g00618119

Install plug (2) and the O-ring seal to housing assembly (3) .

Install housing assembly (3) to base (4) .

Tighten housing assembly (3) until housing assembly (3) is seated against base (4) .
Note: DO NOT use an air wrench to tighten housing assembly (3) .

Close the door assemblies behind the cab.

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Illustration 4	g00589385

Replace two drain plugs (1). Tighten two drain plugs (1) to a torque of 68 ± 7 N·m (50 ± 5 lb ft).

Fill the two hydraulic tanks for the steering and brake system. Refer to Operation and Maintenance Manual, "Steering and Brake System Oil - Change" for the correct procedure to fill the hydraulic tank. Refer to Operation and Maintenance Manual, "Lubricant Viscosities" for the appropriate oil.

The capacity of the steering and brake hydraulic system is 267 L (70.5 US gal).

End By:

Charge the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System - Pressure Release/Charge".
Separate the frame lock link. Refer to Disassembly and Assembly, "Frame Lock Link - Separate and Connect".
Remove the wheel chocks. Refer to Disassembly and Assembly, "Wheel Chock (Front and Rear) - Remove and Install".