Lull 944E-42 Service Manual - Manual (Page 183)

9-25 944E-42
Electrical System
9.11.7 Transmission Shift Control Switch
The transmission control switch and travel select lever (4)
is located on the left side of the steering column.
a. 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, stating that the
machine should not be operated.
3. Open the engine cover. Allow the system fluids to
cool.
4. Properly disconnect the batteries.
5. Disconnect the wiring connector on the underside of
the transmission travel and gear selector lever.
6. Remove the two screws securing the lever assembly
to the steering column.
7. Remove the lever and the collar.
b. Disassembly
DO NOT disassemble the switch or lever. The switch and
lever are not serviceable. Replace switch or lever if found
to be defective.
c. Inspection and Replacement
Inspect switch wiring for continuity and shorting in each
gear selection. Replace a defective or faulty switch with a
new part.
Inspect lever wiring for continuity and shorting in
FORWARD and REVERSE positions. Replace a
defective or faulty lever with a new part.
d. Installation and Testing
1. Position the lever onto the steering column, aligning
the pin with the hole in the steering column.
2. Install both screws through the lever and into the
collar. Tighten the screws securely, but DO NOT
overtighten. Overtightening will cause the lever to
break.
3. Connect the wiring connector on the underside of
the transmission travel and gear selector lever.
4. Properly connect the batteries.
5. Close and secure the engine cover.
6. To test for proper travel lever function, firmly depress
the service brake pedal, disengage the park lock
switch, place the travel select lever in either
FORWARD or REVERSE and in first gear, and
slowly press the throttle while releasing the service
brake pedal. The machine should travel freely.
Repeat the above procedure in each of the four
forward speeds and the three reverse speeds.
9.11.8 Transmission Solenoid Valves
The Transmission is shifted via six solenoids. Three
solenoids valves, Y1 (5), Y2 (6) and Y3 (7) are located on
the right front corner of the transmission. The remaining
three solenoid valves, Y4 (8), Y5 (9) and Y6 (10) are
located at the left front corner of the transmission.
MU3841
4
MU3851
5
7
8
9
10
6