SECTION 11
WATER SPRAY SYSTEM
11-10. WATER PRESSURE.
11-11. Water pressure and flow can be varied by turning
the (spray) control valve located in the operator's
compartment directly below the steering wheel. If
greater pressure is desired on the drive drum the front
(guide roll) spray can be restricted by turning the shut-
off valve located under the unit steering wheel.
11-12. CHECKING MOTOR BRUSHES (see
WARNING: Be sure ignition key switch and water spray
switch are in the OFF position before
inspecting brushes.
11-13. To inspect the brushes, unscrew the brush
retainers. Blow out any brush "dust" with compressed
air. Check for at least 3/8 inch (9.5 mm) of brush length
at the shortest point.
11-14. Examine the commutator for burns, pits or wear.
The space between the segments should be clean and
FIGURE 11-2.
free of deposits. Replace motor if commutator is
strikes drum at upper edge of coco mat. Adjust as
damaged.
follows:
11-15. REMOVAL OF PUMP AND MOTOR
a. Loosen the manifold mounting U-bolts.
ASSEMBLY.
a. Turn the shut-off valve located at the pump under the
b. Rotate the manifold to give desired spray pattern.
unit (see figure 11-4).
c. Re-tighten the U-bolts when desired pattern
b. Disconnect electrical wiring, pressure and suction
adjustment is completed.
lines (see figure 11-4).
FIGURE 11-3.
11-2.
