Pitman Arm - Installation

INSTALLATION






NOTE: Care is to be taken to assure the steering gear does not travel more than 25 degrees off center, at the output shaft in either direction, prior to setting of the poppet valves. This is critical during the installation of the pitman arm. Failure to do this will result in the improper setting of the poppet valves. If set improperly the gear will not go into relief bypass and there is potential for heat build up and damage to the steering system. Once set, the poppet valves can not be reset.

1. Align reference marks and install pitman arm (3).
2. Install the retaining nut (2) on the pitman shaft and tighten nut to 300 Nm (225 ft. lbs.).
3. Install the drag link (6) to the pitman arm (3). Install the nut (1) and tighten to 54 Nm (40 ft. lbs.). Then an additional 90°.
4. Install the track bar (5) and tighten the bolt (4) to 54 Nm (40 ft. lbs.)
5. Remove the supports and lower the vehicle to the surface. Center steering wheel and adjust toe, Service and Repair.
6. After adjustment tighten tie rod adjustment sleeve clamp bolts to 61 Nm (45 ft. lbs.).

"SETTING THE POPPET VALVES IN THE STEERING GEAR BOX AFTER ALIGNMENT HAS BEEN PERFORMED"

1. With the engine at idle and the vehicle still on the turn angle plates or with weight off tires, steer the wheels to full travel in one direction until axle stop contact is made (approximately 2 1/8 turns). Maximum input torque to the steering wheel to be applied during this procedure.

NOTE: Prior to reaching full turn, approximately 1 3/4 turns, a slight increase in turning effort will be experienced and will remain until the steering stop is reached.

2. Follow the same procedure while turning the steering wheel in the opposite direction. The poppets are now positioned to trip and reduce pressure as the steered wheels approach the axle stops in either direction.