Lull 944E-42 Service Manual - Manual (Page 175)

9-17 944E-42
Electrical System
8. Install wiper arm assembly to the wiper motor shaft.
The blade should be parallel with the left side of the
windshield. Install the wiper washer hose onto the
hose adapter.
9. Turn the ignition key to the RUN position and turn
front wiper switch to the ON position. Ensure wiper
stays on the window through a full stroke. Turn the
front wiper switch to the OFF position
10. If previously removed, install hydraulic hoses under
the dash. (Refer to Section 4.3.1, “Steering Column
and Steering Valve.”)
11. Close and secure the engine cover.
9.9.2 Skylight Wiper Motor
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. Remove the skylight wiper arm from the wiper motor
shaft.
6. Disconnect the washer hose from the top hose
fitting.
7. From inside the cab, remove the screw (12) and
acorn nut (13) from the plastic case of the wiper
motor.
8. From the top of the cab, remove the nut (14) from the
wiper motor shaft.
9. From inside the cab, pull the wiper motor down and
away from the roof.
10. Label and disconnect the cab harness connectors
from the wiper motor.
b. Disassembly
DO NOT disassemble the motor. The motor is not
serviceable. Replace motor if found to be defective.
c. Inspection and Replacement
Inspect the motor terminals for continuity. Replace motor
if continuity is not found.
d. Installation and Testing
Note: An assistant will be required for the installation of
the skylight wiper motor.
1. Reconnect the previously labeled electrical
connections (15).
2. Assemble the plastic case (16) onto the wiper motor.
MU6121
12
13
14
FRONT
MU6141
15
FRONT
16
16