JLG G6-42A Service Manual - Manual (Page 182)

Electrical System
9-26 G6-42A, G9-43A, G10-43A
c. Inspection and Replacement
Inspect the switch terminals for continuity and shorting in
both the engaged and disengaged positions. Replace a
defective or faulty switch with a new switch.
d. Switch Installation
1. Connect the switch to the cab harness connector.
2. Position the switch over the rectangular opening in
the dash and snap into position.
3. Properly connect the battery.
4. Start the machine and check the replaced switch for
proper function.
5. Close and secure the engine cover.
6. Remove the Do Not Operate Tags from both the
ignition key switch and the steering wheel.