JLG 534D-10 - Manual (Page 161)

9.13 534D-9, 534D-10 & 544D
Electrical System
b. Solenoid Disassembly
DO NOT disassemble a solenoid. Replace a defective
solenoid with a new part.
c. Solenoid Installation
1. Install the solenoid using new o-rings and tighten.
Install coil and tighten mounting nut. Do Not Over
Tighten.
2. Connect the wire connector to the solenoid
3. Start the machine and slowly move joystick to
engage function. If further trouble shooting is
required, refer to Section 9.5, “Electrical System
Schematics,” or Section 8.4, “Hydraulic Circuits.”
9.10.2 Stabilizer Proximity Sensor
The Stabilizer Proximity Sensor activates when the boom
raises above 45° (light on switch will light).
a. Stabilizer Sensor Removal
1. The stabilizer sensor (1) is located at the left rear
corner of the first boom section pivot pin.
2. Remove the battery negative (-) cable at the negative
battery (-) terminal.
3. Unplug the stabilizer sensor connector from the
wiring harness connector.
4. Measure and record distance from end of sensor to
the sensor bracket.
5. Loosen and remove jam nut and sensor.
b. Stabilizer Sensor 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. Stabilizer Sensor Installation and Testing
1. Install stabilizer sensor and tighten jam nut to
recorded measurement.
2. Connect the stabilizer sensor connector.
3. Install the battery negative (-) cable at the negative
battery (-) terminal.
4. Place an angle finder gauge on the top rear of the
first boom section.
5. Start machine, retract the boom and raise the boom
until the angle gauge reads 45°.
6. The red LED light in the stabilizer sensor should be
illuminated.
7. If stabilizer sensor is not activated, adjust the sensor
and/or sensor bracket to illuminate sensor.
9.10.3 Engine Senders
Engine Coolant Temperature Sender
a. Engine Coolant Temperature Sender Removal
1. The engine coolant sender is located by the
alternator.
2. Remove the battery negative (-) cable at the negative
battery (-) terminal.
3. Remove the engine coolant temperature sender wire
from the sender.
4. The sender is threaded into the engine block.
Remove the sender.
b. Engine Coolant Temperature Sender Inspection
and Replacement
Inspect the sender and the wiring harness terminals for
continuity. Replace a defective or faulty sender with a
new part.
c. Engine Coolant Temperature Sender Installation
and Testing
1. Thread the engine coolant temperature sender into
the engine block snugly, then connect the sender wire
to the sender.
2. Connect the battery negative (-) cable at the negative
battery (-) terminal.
3. Check for proper coolant level.
MX1220
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