TM 10-3930-669-20 7-14.  ENGINE SWITCH REPLACEMENT. This task covers: a.  Removal b.  Installation INITIAL SETUP Tools and Special Tools Tool Kit, General Mechanic's: Automotive (Item 1, Appendix B) Materials/Parts Tags, Identification ( Item 21, Appendix C) Washer, Lock Equipment Condition Engine OFF (TM 10-3930-669-10) Parking brake applied (TM 10-3930-669-10) Wheels chocked (TM 10-3930-669-10) Cab door opened (TM 10-3930-669-10) Batteries disconnected (Para 7-48) a.  Removal (1) Remove screw (1), lock washer (2), and knob (3) from engine switch (4).  Discard lock washer. (2) Remove four screws (5) and lower cover (6) from upper cover (7) and steering column (8). 7-31