JLG G6-42A Service Manual - Manual (Page 177)

9-21 G6-42A, G9-43A, G10-43A
Electrical System
9.10.2 Transmission Solenoid Valve
Note: If the transmission is not shifting properly, the
transmission shift control switch (transmission control
lever), wiring harness or transmission shift solenoids (9)
should be checked in order to determine which
component is defective. Specific information to
determine which travel position and corresponding
component is not responding can be found in the
detailed transmission service instructions (covering
repair, disassembly, reassembly and adjustment
information) are provided in the ZF Powershift
Transmission 4WG-92/98 TSC Repair Manual, (JLG P/N
31200241) and can be obtained by calling your local JLG
dealer or ZF Service Center.
The transmission should be checked, serviced and
repaired only by experienced service technicians who
are aware of all safety instructions and particular
component features.
Note: Contact the JLG Service Department if internal
transmission repair is required during warranty period.
9.10.3 Transmission Temperature Sender
a. Transmission Temperature Sender 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. Unplug transmission temperature sender
connector (10) from the wiring harness connector.
6. The sender is threaded into the transmission
housing. Remove the sender.
b. Transmission Temperature 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. Transmission Temperature Sender Installation
and Testing
1. Thread transmission temperature sender into
transmission housing snugly, then connect sender
connector to wiring harness connector.
2. Properly connect the battery.
3. Check for proper fluid level.
4. Start engine, allow it to reach operating temperature
and observe the operator’s display cluster for
warning indication. If sender is not defective,
problem could be elsewhere; possibly in a
shorted wire, damaged transmission, improper
or low fluid, etc.
5. Close and secure the engine cover.
6. Remove the Do Not Operate Tags from both ignition
key switch and steering wheel.
MY7330
9 (Y4)
9 (Y5)
9 (Y2)
9 (Y3)
9 (Y1)
9 (Y6)
10