The vehicle is equipped with variable speed hydraulic
wipers with washers as standard equipment. A single motor powers both blades.
The wiper motor is mounted to a bracket on the left side of the vehicle in front
of the driver's toe board. A lever control on the left side of the instrument
panel varies the speed of the wiper blades. The hydraulic motor is powered by
power steering fluid from the discharge side of the power steering pump.
WINDSHIELD WASHER
ASSEMBLY REPLACEMENT
The windshield washer reservoir and pump are one unit. The 12 volt pump in the windshield washer reservoir must be replaced with the entire washer assembly.
REMOVAL
1. Disconnect battery ground cables and then disconnect
wire leads (2) to washer motor.
2. Disconnect hose at the rear of the washer reservoir.
3. Lift reservoir out of its bracket and remove it from the
vehicle.
INSTALLATION
1. Position resevoir in its
bracket.
3. Connect hose to back of reservoir.
4. Connect battery ground cables and check for proper
operation.
The windshield washer nozzle is located on the end of the wiper arm. The nozzle is retained by the same nut and bolt which attaches the blade to the wiper arm. The nozzle should be parallel with the windshield as shown in Figure 23. Nozzles are adjustable by loosening the attaching bolt, position nozzle as described above and tighten bolt.
Figure 23-Windshield Wiper Nozzle Alignment
REMOVAL
1. To release tension, lift wiper arm off windshield and
insert pin into aligned holes at wiper arm spline shaft. Remove wiper arms from
pivot shafts by removing wiper arm retaining nuts (See figure 24).
2. Remove linkage from wiper motor crank arm by sliding
back clip(s) away from motor (figure 25).
3 . Remove three bolts from transmission pivot shaft
mounting bracket as shown in Figure 26. Remove assembly.
Figure 24-Wiper Arm Removal
INSTALLATION
1 . Position transmission pivot shaft and secure with three
bolts at its mounting bracket.
2 . Install linkage to crank arm on wiper motor.
3 . Install wiper arms on pivot shafts.
The wiper blade is retained by the use of a spring type
retainer clip in the end of the blade element. Figure 25-Removing Linkage
Figure 26-Pivot Shaft Mounting Bracket When the retainer
clip is squeezed together, the blade
can be removed by sliding out of the blade assembly. The blade assembly is
retained to the wiper arm by a nut and bolt at the end of the arm. The removal
of
this nut and bolt will allow removal of the blade assembly and the windshield
washer nozzle. Wiper blades should be installed with the wiper arm in
"park" position and the blade to arm bolt approximately 3.25 inches
above the windshield rubber moulding.
To adjust sweep of blades to provide maximum visibility,
turn on wipers, then note sweep of arms. CAUTION: Do not attempt to manually force wiper arms into position
as damage to linkage or motor may occur. If necessary, remove arms as
follows:
1. Remove nut from end of wiper arm and remove arm.
2. Arm can be reinstalled in any one of several positions
due to serrations on pivot shaft driver head and in wiper arm head.
NOTE: Checking blade sweep should be done with the
windshield wet.
NOTE: The
windshield wiper motor is serviced as an assembly. Do not attempt to repair the
motor.
REMOVAL
1 . Disconnect hoses (2) at motor and tape end to prevent
loss of fluid and entrance of dirt or water into system.
2. Loosen cable retaining screw at bottom of motor and
remove pin from arm on motor assembly. See Figure 24.
3. Remove connector arms by sliding back clips and
disconnecting arms from the motor assembly.
4. Remove three bolts retaining motor assembly to its
bracket.
INSTALLATION
1. Position wiper motor on bracket and install three
retaining bolts.
2. Position connector arms on motor crank arm and secure
with slide clips.
3 . Insert pin at end of cable assembly and secure with
retaining screw on motor assembly.
4. Connect hoses to motor assembly as shown in Figure 27.
5. Check power steering fluid level. Operate wipers on a
wet windshield for several minutes. Then recheck power steering fluid level.
Also check for
fluid leaks. Correct as necessary.
The windshield wiper motor filter may require replacement
particularly in the event of a power steering pump repair . Following is
replacement procedure.
1. Disconnect hose from windshield wiper motor filter shown
in Figure 27.
2. Remove filter from windshield wiper motor and discard. Figure
27-Windshield Wiper Motor
3. Apply pipe joint sealer to filter threads 1/8" from
end of filter as shown in Figure 28.
4. Carefully screw filter into wiper motor. Figure
28-Windshield Wiper Motor Filter
NOTE: Do not get foreign material on motor end
of filter .
5. Torque filter to 25 ft . lbs. using a 5/8-18 nut.
6. Reconnect hose to filter.