JLG G5-18A Service Manual - Manual (Page 145)

9-25 G5-18A, 2505H, 25.5
Electrical System
9.10.6 Oil Pressure Sender
The oil pressure sender (3) is located on the engine near
the oil filter.
a. Oil Pressure Sender 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 battery and engine covers. Allow the
engine to cool.
4. Properly disconnect the battery.
5. Disconnect the wiring connector at the oil pressure
sender lead.
6. 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.
2. Properly connect the battery.
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.
6. Remove the Do Not Operate Tags from both the
ignition key and the steering wheel.
MY8820
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