Lull 944E-42, Service Manual

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9.197 Model 644E-42/944E-42 Rev. 6/04
Electrical System
3. Carefully pry the skylight wiper switch, bezel and
wiring out of the mounting hole.
4. Disconnect the skylight wiper switch from the cab
harness connector.
b. Disassembly
DO NOT disassemble the switch. The switch is not
serviceable. Replace switch if found to be defective.
c. Cleaning and Drying
Without submerging the switch, clean the switch with an
approved solvent and dry with a clean, lint-free cloth.
d. Inspection and Replacement
1. Inspect the switch terminals for continuity with the
switch in the OFF and ON positions. (Refer to
Section 9.8.39, “Skylight Wiper/Washer, Rear
Washer Circuit & Troubleshooting.”)
2. Replace the switch if it fails any of the tests in step 1.
e. Installation and Testing
1. Connect the skylight wiper/washer rocker and rear
window washer switch to the cab harness connector.
2. Position the switch over the rectangular switch bezel
and snap into position.
3. If the vehicle has dual batteries, connect both
negative battery cables (7 and 8) to both batteries.
Connect the lower negative battery cable (7) to the
negative (-) terminal on the lower battery (9). Swing
the upper battery box (12) in and make sure that the
lip (11) on the upper battery box slides below the
knob (10). Secure in place with the knob.
4. Turn the ignition switch (2) to the RUN position (3)
and test the skylight wiper/washer rocker and rear
window washer functions. Turn the ignition switch (2)
to the OFF (4) position.
5. Lower and lock engine cover. To release and lower
the engine cover (5) from the fully raised position, lift
up slightly on the cover and push the upper part of
the right gas shock (6) (orange tab) to the left. Line
up the upper part of the shock lock tube with the
lower part of the gas shock and pull the cover down
to the closed position.
MU0650
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