JLG G6-42A Service Manual - Manual (Page 176)

Electrical System
9-20 G6-42A, G9-43A, G10-43A
9.10 SOLENOIDS, SENSORS
AND SENDERS
9.10.1 Park Brake Solenoid Valve
a. Park Brake Solenoid Valve Removal
1. Park machine on a firm, level surface, level machine,
fully retract boom, lower boom, place transmission
control lever in (N) NEUTRAL, engage park brake
and shut engine OFF.
2. Place a Do Not Operate Tag on both ignition key
switch and steering wheel.
3. Open engine cover. Allow system fluids to cool.
4. Properly disconnect the battery.
5. Disconnect the wiring connector at the park brake
solenoid lead.
6. Remove nut on end of park brake coil (7).
7. Remove park brake coil.
8. Remove park brake solenoid (8). (Remove only if
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 park brake coil over solenoid. Tighten nut to
secure solenoid. DO NOT overtighten.
3. Connect wiring connector to park brake coil lead.
4. Properly connect battery.
5. Close and secure engine cover.
6. Remove the Do Not Operate Tags from both the
ignition key switch and the steering wheel.
MY7320
7
8
IF EQUIPPED FOR ULS
MY8170
8
IF EQUIPPED FOR LS