Oil Pressure Sender - JLG G5-18A Service Manual

Electrical System
5. Start the engine. If the engine starts, the fuel shutoff
solenoid is functioning. If the engine fails to start, the
fuel shut-off solenoid may have a poor ground
connection. Visually check the wiring at the fuel
shutoff solenoid leads and/or check for continuity
with a voltmeter as required.
6. Check for fuel and/or oil leakage around the solenoid.
7. Close and secure the battery and engine covers.
2
9.11.7

Oil Pressure Sender

The oil pressure sender (2) is located on the engine near
the oil filter.
a. Oil Pressure Sender Removal
1. Open the battery and engine covers. Allow the
engine to cool.
2. Disconnect the battery negative (-) cable from the
battery negative (-) terminal.
3. Disconnect the wiring connector at the oil pressure
sender lead.
4. The oil pressure sender is threaded into the engine.
Remove the sender.
b. Oil Pressure Sender Inspection and Replacement
Inspect the sender and the wiring harness connector
terminals for continuity. Replace a defective or faulty
sender with a new part.
c. Oil Pressure Sender Installation and Testing
1. Thread the oil pressure sender into the engine
housing snugly, then connect the sender connector
to the wiring harness connector.
9-24
2. Connect the battery negative (-) cable to the battery
negative (-) terminal.
3. Check for proper fluid level.
4. Start the engine, and observe the operator's display
for warning indication. If the sender is not defective,
the problem could be elsewhere; possibly in a
shorted wire, improper-running engine, low oil,
obstructed or faulty oil pump, defective instrument
display.
5. Close and secure the battery and engine covers.
1
9.11.8
The Load Stability Indicator (3) provides a visual
indication for stability limitations. If the LSI senses that
the machine is becoming unstable, an audible and visual
alarm will begin to sound and the boom lower, boom
extension and outriggers functions will be prohibited.
Depending on the circumstance, the LSI can be
overridden by pressing the "overload shut-off" button on
the display panel.
MY1890
Note: The Load Stability Indicator is NOT a serviceable
item. The Load Stability Indicator must be inspected and/
or replaced by a qualified dealer or JLG technician
9.11.9
The Load Stability Sensor (4) is bolted on the top right of
the rear axle.
Load Stability Indicator (CE)
Load Stability Sensor
3
MY2500
G5-18A, 2505