JLG G6-42A Service Manual - Manual (Page 221)

9-57 G6-42A, G9-43A, G10-43A
Electrical System
b. Disassembly
DO NOT disassemble the ignition switch. Replace a
defective switch with a new part.
c. Inspection and Replacement
To determine the proper operation of the ignition key
switch, test the terminals on the back of the switch for
continuity with an ohmmeter.
Test the ignition key switch for continuity, by checking
from the BAT terminal (13) to each of the remaining
terminals in their corresponding switch position.
If all terminals do not show proper continuity, replace the
ignition switch.
d. Ignition Switch Installation
1. Connect the ignition key switch to the previously
labeled wires.
2. Align the ignition switch in the dash so that when it is
in the OFF position, the key slot is positioned vertically
(straight up and down). Install the hex nut securing
the ignition switch to the dash. DO NOT overtighten.
3. Install the dash panel with the previously used
hardware.
4. Properly connect the battery.
5. Close and secure the engine cover.
6. Remove the Do Not Operate Tags from both the
ignition key switch and the steering wheel.
Note: If further information is needed, refer to Section
9.5, “Electrical System Schematics.”
9.13.2 Dash Switches
a. Switch Removal
1. Park the machine on a firm, level surface, level the
machine, fully retract the boom, lower the boom,
place the transmission control lever in
(N) NEUTRAL, engage the park brake and shut the
engine OFF.
2. Place a Do Not Operate Tag on both the ignition key
switch and the steering.
3. Open the engine cover. Allow the system fluids to
cool.
4. Properly disconnect the battery.
5. There are three frames with three switches in each
frame.
6. Pull the frame out of the dash, disconnect the
harness connector to the switch in question and
push the switch out of the frame.
b. Disassembly
DO NOT disassemble the dash switch. Replace a
defective switch with a new part.
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 switch bezel
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.
MY0830
BAT
BA
T
AC
C
AC
C
IGN
IGN
ST
13