Lull 944E-42 Service Manual - Manual (Page 182)

Electrical System
9-24 944E-42
c. Inspection and Replacement
Inspect switch wiring for continuity and shorting in both
the ENGAGED and DISENGAGED positions. Replace a
defective or faulty switch with a new part.
d. Installation and Testing
1. Connect the previously labeled wires to the switch.
2. Make sure the symbol is at the bottom of the switch,
then press the switch into place in the benzel.
3. Properly connect the batteries.
4. Start the engine, engage the park lock switch, place
the travel select lever in FORWARD or REVERSE
and in second gear apply full throttle. The machine
should remain motionless in both FORWARD and
REVERSE positions.
5. To test for proper parking brake switch
disengagement, 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 parking brake
should release and the machine should travel freely.
6. Close and secure the engine cover.
9.11.6 Transmission Disconnect Switch
The transmission disconnect switch (3) is located on the
dash to the left of the steering column and is pressed into
a rectangular switch benzel.
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. Carefully pry the park brake switch and wiring out of
the mounting hole.
6. Label and disconnect the wiring from the switch.
Remove the switch from the machine.
b. Disassembly
DO NOT disassemble the switch. The switch is not
serviceable. Replace switch if found to be defective.
c. Inspection and Replacement
Inspect switch wiring for continuity and shorting in both
the ENGAGED and DISENGAGED positions. Replace a
defective or faulty switch with a new part.
d. Installation and Testing
1. Connect the previously labeled wires to the switch.
2. Make sure the symbol is at the bottom of the switch,
then press the switch into place in the benzel.
3. Properly connect the batteries.
4. Close and secure the engine cover.
5. Start the engine, activate the transmission
disconnect switch, firmly depress the service brake
pedal, place the travel select lever in either
FORWARD or REVERSE and in second gear, and
apply full throttle. The machine should remain
motionless in both FORWARD and REVERSE
positions and the hydraulic system has full engine
power.
Note: With the disconnect feature active and the service
brake pedal being released, the transmission will be
reconnected in the same gear and direction of travel as
when it was originally disconnected. The service brakes
must remain fully applied for this feature to be functional.
MU5701
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