F 350 4WD Pickup V8-7.3L DSL (1988)
6. Using a 9.8 mm (3/8 inch) diameter drill, drill down the MIDDLE of the ignition lock key slot approximately 45 mm (1-3/4 inch) until the lock
cylinder breaks loose from the steering column cover casting. Remove the lock cylinder, and the drill shavings from the base of the cover cast
housing.
7. Remove the steering wheel and pad. Refer to Steering Wheel: Service and Repair.
8. Remove the turn signal lever from the column and then remove the two attaching screws from the turn signal switch and one attaching screw from
the key warning buzzer terminal. Lift the turn signal switch up and over the end of the steering shaft but do not disconnect it from the wiring
harness.
9. Remove the four attaching screws from the cover casting and lift the casting over the end of the steering shaft allowing the turn signal switch to
pass through the cover casting. The removal of the cover casting will expose the upper actuator. Remove the upper actuator.
10. Remove the drive gear, snap ring and washer from the cover casting along with the upper actuator mentioned above. Thoroughly clean the
components in an acceptable cleaning solution. Carefully inspect all components for any damage resulting from the drilling operation. If any of the
components show signs of damage, they must be replaced. Clean the removed cover casting with compressed air to remove any drill shavings or
foreign particles and carefully inspect it for damage. If the cover casting is damaged, replace it with a new one primed and painted to match the
existing column.
Installation
1. Lubricate the tang of the lock cylinder with grease.
2. Attach the upper actuator to the lower actuator and lubricate the upper actuator. Reassemble the cover casting, upper actuator, turn signal switch
and lever, lock drive gear, lock cylinder, steering wheel and pad, and the steering column trim shrouds. Refer to Steering Wheel: Service and
Repair, also Refer to Steering Column: Service and Repair: Removal/Installation.
3. Using the ignition key, rotate the lock cylinder to insure correct mechanical operation in all positions.
4. Connect the battery ground cable.
5. Check for proper start in Park or Neutral. Also check to make certain that the start circuit CANNOT be actuated in the Drive and Reverse
positions.
