JLG 4017RS Service Manual - Manual (Page 175)

9-23 3614RS, 4017RS
Electrical System
9. If necessary, remove the sensor bracket.
b. Boom Angle Sensor Inspection and Replacement
Inspect the sensor and the wiring harness connector
terminals for continuity. Replace a defective or faulty sensor
with a new sensor.
c. Boom Angle Sensor Installation
1. If necessary, install the sensor bracket.
2. Install the sensor assembly to the sensor seat and
tighten both bolts.
3. Install the rod end to the sensor arm and tighten nut.
4. If necessary, measure and set the rod length (3) as
required.
5. Plug the electrical connector into the sensor assembly.
6. Properly connect the battery.
7. Close and secure the engine cover.
8. Remove the Do Not Operate Tag from the ignition key
switch and the steering wheel.
d. Boom Angle Sensor Adjustment
1. Access Level 2 can be reached by pressing buttons C
and OK at the same time.
2. Enter Access Level 2 password 33271.
3. Choose Calibration menu and select “Boom Angle”.
4. Press OK button when asked “Calibrate Boom Angle
Sensor?”.
5. Follow prompts. First move boom to lowest position,
press OK button.
6. Follow prompts. Move boom to highest position, press
OK button.
7. If calibration is successful, Analyzer will indicate
“Calibration: Complete”.
If calibration fails, Analyzer will indicate “Calibration
Failed”. The boom angle sensor position may need to be
adjusted or the boom sensor rod may need adjusted.
9.8.8 Back-up Alarm
The back-up alarm is located at the rear of the machine.
When the transmission shift lever is shifted to the (R)
REVERSE position, the back-up alarm will automatically
sound.
Place the transmission control lever in (R) REVERSE to test the
back-up alarm. The back-up alarm must not sound when the
transmission control lever is in
(N) NEUTRAL or (F) FORWARD. Also, with the ignition key
switch in the RUN position, the back-up alarm will sound
when the transmission control lever is shifted into the (R)
REVERSE position.
a. Disassembly
DO NOT disassemble the back-up alarm. Replace a defective
or faulty alarm with a new part.
9.9 DASH SWITCHES
Note: For information on the front windshield wiper, rear
window wiper and washer systems, refer to Section 9.7, “Wiper/
Washer Wiper Motor.”
9.9.1 Ignition Key Switch
a. Ignition Key Switch Removal
1. Park the machine on a firm, level surface, level the
machine, fully retract the boom, lower the boom, place
the transmission 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 engine to cool.
4. Properly disconnect the battery
5. Remove the screws securing the lower dash panel.
6. Remove the hex nut securing the ignition key switch to
the dash.
7. Lower the dash panel to gain access to the rear of the
ignition switch. Push the switch through the panel.
8. Label and disconnect the electrical connections
attached to the switch.
9. Remove the switch from the machine.
Machine Rod Length
3614RS (A) 375 mm (14.75 in)
4017RS (B) 230 mm (9.05 in)