Ford Motor Co.
When installing switch, both locking mechanisms at top of column and switch itself must be in "LOCK" position. To hold mechanical parts of column in "LOCK" position, place shift lever in "PARK" (automatic transmission) or reverse (manual transmission), turn key to "LOCK position and remove key. Pull switch plunger out as far as it will go then move it in one detent ("LOCK" position). Insert a 3/32" drill bit into locking hole on top of switch. Switch is now pinned in "LOCK" position. Connect switch plunger to actuator rod. Position switch on column and loosely install retaining nuts. Move switch up and down to locate mid-position of rod lash then tighten retaining nuts.