776D, 777D and 777D HAA Off-Highway Trucks Machine Systems Caterpillar

Installation Procedure

Note: Check all of the O-ring seals and the components for wear or for damage. Replace the components, if necessary. Lubricate all of the O-ring seals lightly with the lubricant that is being sealed. Clean all of the components with a cloth that is free of loose material (lint).

Show/hide table



Illustration 1	g00703800

1. Position a suitable lifting sling around hoist control valve (3). Secure the suitable lifting sling to a hoist. Lift hoist control valve (3) into position on the machine, as shown. The weight of the hoist control valve is 108 kg (238 lb). Install three bolts (14) and the hard washers that hold hoist control valve (3) in position.

2. Install block (5) and block (8) on hoist control valve (3) .

Show/hide table



Illustration 2	g00703798

3. Connect hose assembly (11), hose assembly (12), and tube assembly (13) to hoist control valve (3) .

Show/hide table



Illustration 3	g00703796

4. Connect hose assembly (10) to hoist control valve (3) .

Show/hide table



Illustration 4	g00703795

5. Connect hose assembly (4) and hose assembly (6) to block (5). Connect hose assembly (7) and hose assembly (9) to block (8) .

Show/hide table



Illustration 5	g00703794

6. Connect wire harness (1) at the electrical connection. Connect wire harness (2) at the electrical connection.

7. Fill the hoist, torque converter, and brake tank with oil to the correct level. Refer to Operation and Maintenance Manual, "Hoist, Torque Converter and Brake Tank Oil - Change". The capacity of the tank is 250 L (66 US gal).