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 Page 3