PLATE-ARABIC 8T3469 - Caterpillar

Make sure all of the pressure in the brake system is released before any lines are disconnected.
2. Put identification on wires and oil lines for correct installation. 3. Disconnect wires (1) and (3). Disconnect oil line (2) from the brake control valve. 4. Remove tube assemblies (5) and (6). Disconnect tube assembly (4). 5. Remove tube assembly (7). Remove four bolts (8) that hold the manifold to the brake control valve. 6. Disconnect rod end (9) from the brake control valve.7. Remove two bolts (10) and remove brake control valve (11).Install Brake Control Valve
1. Put brake control valve (1) in position on the plate and install the two bolts that hold it. 2. Connect rod end (2) to the brake control valve. 3. Install four bolts (3) that hold the manifold to the brake control valve.4. Install tube assembly (4). 5. Connect tube assembly (5) to the brake control valve. Install tube assemblies (6) and (7) to the brake control valve. 6. Connect oil line (8) to the brake control valve. Connect wires (9) and (10).7. Install cover plates behind the operator's station.Disassemble Brake Control Valve
start by:a) remove brake control valve 1. Remove manifold (1) from the brake control valve. 2. Remove four bolts (2) and retainer (3) from the valve. 3. Remove shims (6) from the retainer.4. Remove nut (7), retainer (5) and valve stem (4) from the retainer.5. Remove seal (8) from the retainer. 6. Remove seal (9) from retainer (3). 7. Remove springs (11) and (12) from the valve body. Remove retainer (10) from the valve body.8. Remove cover (13) from the valve body. 9. Remove piston (14) from the cover.10. Remove spring (16) and orifice (15) from the cover. 11. Remove spring (19), retainer (18) and stem (17).Assemble Brake Control Valve
1. Make sure all of the parts of the brake control are clean. Inspect all seals for damage and make replacements if needed.2. Put clean hydraulic oil on all of the parts of the valve. 3. Install stem (1), retainer (2) and spring (3) in the valve body. 4. Install piston (4) in the cover.5. Install spring (5) and orifice (6) in the cover as shown. 6. Put cover (7) in position on the valve body and install the four bolts that hold it. 7. Install retainer (8), large spring (9) and small spring (10) in the valve body. 8. Install the lip-type seal in the retainer with tooling (A). Install the seal with the lip toward the inside of the retainer. 9. Install valve stem (11) in the retainer. Install retainer (12) as shown. Install nut (14) on the valve stem and tighten it to a torque of 35 3 lb.ft. (45 4 N m). Install shims (13).10. Install a new seal in the retainer. 11. Install retainer (15) on the valve body. Install the bolts and nuts that hold it. 12. Install manifold (16) on the brake control valve.end by:a) install brake control valve