C-6

ADJUSTMENTS

The only adjustments on the transmission are the intermediate band and the NEUTRAL START switch (and the Vacuum Regulator Valve on vehicles equipped with 6.9Ldiesel engines).

On vehicles equipped with 6.9L Diesel Engines, the Vacuum Regulator Valve (VRV), which is located on the fuel injector pump must be properly adjusted to regulate vacuum to the transmission vacuum diaphragm.

To prevent damage to the transmission and to assure proper band adjustment, it is essential that the tools and procedures described here are used whenever the band is adjusted.

Intermediate Band Adjustment

1. Raise the vehicle on a hoist or jack stands.
2. Clean all the dirt from the band adjusting screw. Remove and discard locknut.
3. Install a new locknut and tighten the adjusting screw to 14 N.m (10 ft-lbs) torque (Fig. 5).
4. Back oft the adjusting screw exactly 1-1/2 turns.
5. Hold the adjusting screw from turning and tighten the locknut to 48-61 N.m (35-40 ft-lbs).
6. Lower the vehicle.

Align Neutral Start Switch

1. Apply the parking brake.
2. With the manual linkage properly adjusted, loosen the two switch attaching bolts (Fig. 6).
3. Place the transmission manual lever in NEUTRAL. Rotate the switch and insert the gauge pin (No.43 drill shank end) into the gauge pin holes of the switch. The gauge pin has to be inserted a full 12.303 mm 31/64 inch into the three holes of the switch (Fig. 6).
4. Tighten the two neutral start switch attaching bolts to 6.5-8.0 N.m (55-75 in-lbs). Remove the gauge pin from the switch.
5. Check the operation of the switch. The back up lamps should operate only with the transmission selector lever in REVERSE. The vehicle should start only with the transmission selector lever in PARK and NEUTRAL.