Lull 944E-42 Service Manual User Manual
Page 705

9.195
Model 644E-42/944E-42
Rev. 6/04
Electrical System
3. Carefully pry the windshield wiper switch and wire
connector out of the mounting hole.
4. Disconnect the windshield wiper switch with bezel
from the cab wiring harness connector.
b. Disassembly
DO NOT disassemble the switch. The switch is not 
serviceable. Replace the 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, ON and WASH positions. (Refer 
to Section 9.8.38, “Front Wiper/Washer Circuit & 
Troubleshooting.”)
2. Replace the switch if it fails any of the tests in step 1.
e. Installation and Testing
1. Connect the windshield 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. 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.
5. Turn the ignition switch (2) to the RUN position (3)
and press and hold the bottom of the switch to test 
the windshield washer function. Turn the ignition 
switch (2) to the OFF (4) position.
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