Over-Center Rotating Torque
- Mount the gear carefully into a vise.CAUTION: Do not overtighten the vise on the gear case. This may affect the adjustment
- Rotate the input shaft with a crows foot socket from stop to stop and count the number of turns.
- Starting at either stop, turn the input shaft back 1/2 the total number of turns. This is the center of the gear travel.
- Loosen the adjuster plug locknut.
- Place the torque wrench in the vertical position on the input shaft. Rotate the wrench 50 degrees each side of the center and record the highest rotational torque in this range. This is the Over-Center Rotating Torque. See Fig 1.NOTE: The input shaft must rotate smoothly without sticking or binding.
- The Over-Center Rotating Torque should be 0.53-0.93 N.m (4.5 - 8 in. lbs.) higher
in addition to the off center torque from above than the Preload Rotating Torque. See Fig 1.
1 - CROWSFOOT WRENCH 2 - INCH POUND TORQUE WRENCH 3 - STEERING GEAR - If an adjustment to the Over-Center Rotating Torque is necessary, first loosen the adjuster lock nut. Then turn the pitman shaft adjuster screw back (COUNTERCLOCKWISE) increases torque, (CLOCKWISE) reduces torque. See Fig 2.
- Remeasure Over-Center Rotating Torque. If necessary turn the adjuster screw and repeat measurement until correct Over-Center Rotating Torque is reached. See Fig 2.NOTE: To increase the Over-Center Rotating Torque turn the screw COUNTERCLOCKWISE.
- Prevent the adjuster screw from turning while tightening adjuster lock nut. Tighten the adjuster lock nut to 65 N.m (48 ft. lbs.). See Fig 2.
| 1 - RATCHET WITH ADAPTER |
| 2 - WRENCH |
| 3 - CROWSFOOT WRENCH |
| 4 - INCH POUND TORQUE WRENCH |
| 5 - STEERING GEAR |
| 6 - ALLEN HEAD SOCKET |