JLG G6-42A Service Manual - Manual (Page 215)

9-51 G6-42A, G9-43A, G10-43A
Electrical System
G9-43A/G10-43A - S/N 0160040675 and After including
0160040468 & 016040672
a. Park Brake Solenoid Valve 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.
3. Open the engine cover. Allow the system fluids to
cool.
4. Properly disconnect the battery.
5. Disconnect the wiring connector at the park brake
solenoid lead.
6. Remove the nut on the end of the park brake coil (7).
7. Remove the park brake coil.
8. Remove the park brake solenoid (8). (Remove only if
the electrical coil is found to not be faulty.)
b. Disassembly
DO NOT disassemble the solenoid. The solenoid is not
serviceable. Replace solenoid if found to be defective.
c. Park Brake Solenoid Valve Installation
Note: ALWAYS replace seals, o-rings, gaskets, etc.,
with new parts to help ensure proper sealing and
operation. Lubricate seals and o-rings with clean
hydraulic oil.
1. If necessary, install the park brake solenoid in its
original orientation.
2. Slide the park brake coil over the solenoid. Tighten
the nut to secure the solenoid. DO NOT overtighten.
3. Connect the wiring connector to the park brake coil
lead.
4. Properly connect the battery.
5. Close and secure the engine cover.
6. Remove the Do Not Operate Tags from both the
ignition key switch and the steering wheel.
MY1140
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