JLG G12-55A Service Manual - Manual (Page 179)

9-37 G10-55A, G12-55A
Electrical System
9.10.10 Front and Rear Axle Proximity
Sensors
The sensors used on each axle allow the steering to be
changed to one of three different settings. The sensors
will not allow the change to be completed unless both
axles are in the central location.
Each sensor is mounted in the center of each steer
cylinder.
a. Removal
1. Open engine cover. Allow system fluids to cool.
2. Properly disconnect the battery.
3. Unplug the axle proximity sensor from the wiring
harness.
4. Remove the bolts holding the sensor to the steering
cylinder barrel.
b. Disassembly
1. Inspect the sensor and the wiring harness connector
terminals for continuity. Replace a defective or faulty
sensor with a new sensor.
c. Installation and Testing
1. Install the bolts holding the sensor to the steering
cylinder barrel.
2. Connect the axle proximity sensor to the wiring
harness.
3. Properly connect the battery.
4. Close and secure engine cover.
5. Start the machine, select a steering mode, turn the
steering wheel until the display unit shows the
steering has been "locked" into the selected mode.
9.11 DISPLAY MONITOR AND GAUGES
9.11.1 Analog Gauges
a. Gauge 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 wheel, stating that the
machine should not be operated.
3. Open the engine cover. Allow the system fluids to
cool.
4. Properly disconnect the battery.
5. Remove the screws (11) securing the dash panel.
6. Label and disconnect the wires from the gauge,
remove the gauge bracket.
7. Pull the gauge (12) out from the dash.
MY1840
11
11
JOHN DEERE
PERKINS
BEFORE S/N 0160037186
12
12
MY5060
11
12
CUMMINS
S/N 0160039451 & AFTER INCLUDING
0160039394 & 0160039397
PERKINS
S/N 0160037186 THRU 0160039451
EXCLUDUING 0160039394 & 0160039397