Model 800-808 Bench Adjustments

Fig. 29 Thrust bearing preload adjustment:

THRUST BEARING PRELOAD
1. Tighten adjuster plug until bottomed and torque to 20 ft. lbs.
2. Draw a line on gear housing and adjuster plug, and a second line {1/2} inch counter clockwise on housing only, Fig. 29.
3. Turn adjuster plug counterclockwise until mark on adjuster aligns with second mark on housing. Tighten locknut while holding plug securely to prevent rotation.

Fig. 31 On-bench over-center preload specification chart:

Fig. 32 Adjusting over-center preload:

OVER-CENTER PRELOAD
1. Rotate stub shaft from stop to stop, counting number of turns, then turn back exactly {1/2} number of turns to locate center of travel.
2. Measure combined ball and thrust bearing preload using an inch pound torque wrench to rotate stub shaft through the over center position.
3. Referring to Fig. 31, tighten adjusting screw while rotating stub shaft with torque wrench until torque reading obtained is specified inch pounds greater than combined ball and thrust bearing preload, Fig. 32. Note that total steering gear preload must not exceed specifications.