Steering Gear Valve Replacement - Off Vehicle (700 Gear)

Steering Gear Valve Replacement - Off Vehicle (700 Gear)

Disassembly Procedure





1. Remove the thrust support assembly.
2. Remove the stub shaft (1) and the valve assembly (2) from the steering gear housing.
3. If necessary, remove the stub shaft (1) from the valve assembly (2) in the following manner:
3.1. Tap the stub shaft (1) lightly on a wood block in order to loosen the cap.
3.2. Pull the cap and the valve spool out from valve body (2) 6 mm (1/- inch).
3.3. Disengage the stub shaft pin (3) from the hole in the valve spool (4).





4. If the valve assembly needs repair, disassemble the valve in the following manner:
4.1. Simultaneously pull and rotate the valve spool (1) from the valve body (3).
4.2. Remove the valve spool O-ring seal (2).
4.3. Alternately remove the valve body teflon rings (5) and the O-ring seals (4).

Assembly Procedure





1. If disassembled, reassemble the valve assembly in the following manner:
1.1. Alternately install the valve body teflon rings (5) and the O-ring seals (4).
1.2. Install the valve spool O-ring seal (2) to the valve spool (1).
1.3. Lubricate the valve spool (1) and O-ring seal (2) with power steering fluid.





2. Simultaneously push and rotate the valve spool (2) into the valve body (1) until the hole (3) in the valve spool (2) for the stub shaft pin is accessible from the opposite end of the valve body (1).





3. If necessary, install the stub shaft to the valve spool in the following manner:
Lubricate the stub shaft assembly (3).
3.1. Insert the stub shaft (3) into the valve spool.
3.2. Insert the pin.

Important: Make sure that the shaft cap notch (1) is mated with the valve body pin before installing the valve body into the steering gear assembly.

3.3. The notch in the cap (1) must fully engage the valve body pin (2). Seat the cap against the valve body shoulder.





4. Install the stub shaft (7) and valve assembly (6) to the worm shaft (5). Ensure the pin fits in the worm shaft to the slot in the valve assembly.
5. Install the thrust support assembly.