SERVICE MANUAL
DESCRIPTION
The windshield washer (Fig. 1) consists of a
reservoir mounted motor driven displacement type pump
that delivers washer solution to the windshield through
hoses and nozzles in the wiper arms. Pump motor may
be integral with reservoir or detached.
OPERATION
Two types of controls are used with the
windshield washer namely - an integral with wiper control
switch type for electric wipers and an independent
control type for air wipers. (Independent switch is
mounted on instrument panel directly below wiper control
valve.) You can operate windshield washer with either
type control simply by pushing in on control switch for as
long as you want nozzles to spray. Spray will stop as
soon as control is released.
MAINTENANCE
A minimum of service is required to keep
windshield washer operating. Keep reservoir filled with
IH No. 996726-R2 windshield washer solvent and keep
wiper nozzles clean. If dirt enters reservoir, remove
reservoir and flush out with clean water. Refill reservoir
with specified solvent after reinstalling.
REMOVAL AND INSTALLATION
1.
Remove the reservoir-to-cowl mounting bolts
and lift complete pump, motor and reservoir from
cowl.
2.
Separate wiring connector for instrument panel
switch-to-motor wire and motor-to- ground wire
from pump motor.
3.
Disconnect pump-to-wiper nozzle hose from
pump outlet fitting.
4.
Since
two
different
types
of
pump-motor-
reservoir assemblies may be found on S- Series
cabs,
always
check
Parts
Catalog
before
disassembling
pump
motor
from
reservoir.
Figure 2 shows the installation where pump
motor is serviced separately. Installation of
windshield washer is the reverse of removal
procedure. Test the operation of unit and check
for leaks after installing.
IMPORTANT
Be sure an ample supply of IH No.
996726-R2 windshield washer solvent is
maintained
in
reservoir
to
insure
satisfactory
operation
of
windshield
washer.
Fig. 2. Pump, Motor Reservoir Assembly
(Detachable Pump Motor Type)
1.
Cap, Tube
2.
Seal, O-ring
3.
Block, Junction
4.
Block, Junction
5.
Grommet, Hose
6.
Strap, Cable Lock
7.
Bracket, Reservoir
8.
Cap, Reservoir
9.
Gasket, Cap
10.
Filter, Reservoir
11.
Washer, Nylon
12.
Reservoir
13.
Grommet
14.
Pump Motor, Assembly
15.
Hose
16.
Strap, Cable Lock
CTS-4061 - Chapter III
PRINTED IN UNITED STATES OF AMERICA
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