JLG 4017RS Service Manual - Manual (Page 171)

9-19 3614RS, 4017RS
Electrical System
9.8 SOLENOIDS, SENSORS AND SENDERS
9.8.1 Transmission Solenoid Valves
Note: If the transmission is not shifting properly, the
transmission shifter, wiring harness or transmission shift
solenoids (6) 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
following publications:
Detailed transmission parts and service information can be
found in appropriate parts and/or service manuals.
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 local JLG dealer if internal transmission repair is
required during the warranty period.
9.8.2 Transmission Oil Temperature Switch
a. Transmission Oil Temperature Switch Removal
The transmission oil temperature switch (7) is located next to
transfer case below converter housing.
1. Park machine on a firm, level surface, level machine,
fully retract boom, lower boom, place transmission in
(N) NEUTRAL, engage park brake and shut engine OFF.
2. Place a Do Not Operate Tag on both the ignition key
switch and steering wheel.
3. Open engine cover. Allow system fluids to cool.
4. Properly disconnect battery.
5. Unplug transmission oil temperature switch connector
from wiring harness connector.
6. The switch is threaded into transmission housing.
Remove the switch.
b. Transmission Oil Temperature Switch Inspection and
Replacement
Inspect switch and wiring harness connector terminals
for continuity. Replace a defective or faulty switch with a new
part.
c. Transmission Oil Temperature Switch Installation and
Testing
1. Thread transmission oil temperature switch into
transmission housing snugly, then connect switch
connector to wiring harness connector.
2. Properly connect battery.
3. Check for proper fluid level.
4. Start engine, allow it to reach operating temperature
and observe operator display cluster for warning
indication. If switch 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 Do Not Operate Tag from ignition key switch
and steering wheel.
MZ8180
6
MZ8190
7