JLG G12-55A Service Manual - Manual (Page 71)

4-5 G10-55A, G12-55A
Cab and Covers
4.3.3 Throttle Pedal
a. Throttle Pedal Removal
1. Park the machine on a firm, level surface, level the
machine, fully retract the boom, lower the boom,
place the travel select lever in the (N) NEUTRAL
position, engage the parking brake and turn the
engine OFF.
2. Place a Do Not Operate Tag on both the ignition key
switch and steering wheel, stating that the machine
should not be operated.
3. Properly disconnect the battery.
4. Disconnect the electrical harness connector (4).
5. Remove the bolts (5) securing the throttle pedal to
the throttle pedal bracket (6).
6. Remove the throttle pedal assembly from the cab.
b. Throttle Pedal Installation
1. Position the throttle pedal in its mounting location
within the cab.
2. Secure the throttle pedal into position with the pivot
pin.
3. Install the throttle pedal ball joint to the throttle pedal.
4. Connect the battery negative (-) cable to the battery
negative (-) terminal.
5. Close and secure the engine cover.
4.3.4 Boom Joystick Assembly
a. Boom Joystick Assembly Removal
1. Park the machine on a firm, level surface, level the
machine, fully retract the boom, lower the boom,
place the travel select lever in the (N) NEUTRAL
position, engage the parking brake and turn the
engine OFF.
2. Place a Do Not Operate Tag on both the ignition key
switch and steering wheel, stating that the machine
should not be operated.
3. Properly disconnect the battery.
4. Lift the joysticks rubber sleeve, remove the bolts
securing the boom joystick to the cab console (7).
5. Lift the boom joystick from its mounting position.
6. Label, disconnect and cap the hydraulic hoses
attached to the boom joystick.
7. Disconnect the electrical harness connector from the
joystick.
8. Remove the boom joystick assembly.
b. Boom Joystick Assembly Installation
1. Uncap and connect the previously labeled hydraulic
hoses to their appropriate locations.
2. Connect the electrical harness connector to the
joystick.
3. Install the bolts securing the boom joystick to the cab
console.
4. Properly connect the battery.
5. Test the boom extend/retract and boom lift/lower
joystick function:
MY0940
4
5
6
MY0950
7