Operating instructions

MAINTENANCE
980076 08/26/03
4-13
PROBLEM CAUSE SOLUTION
Water supply is turned off or
the float valve is stuck or
improperly adjusted.
Turn the water supply on or up. Check
for kinks in the water supply hose.
Examine the float valve and adjust or
replace.
Water pump inlet supply line is
plugged or drawing air.
Examine the water inlet filter inside the
water box. Remove accumulated
debris and replace if required. Check
for suction leaks and loose clamps or
fittings. Tighten any loose fittings or
clamps. Replace any ruptured hose(s).
Improper engine speed. Using a tachometer, check the engine
speed. Full throttle engine speed is 27
RPM. Re-adjust in accordance with
the Briggs & Stratton Engine Operation
and Service Manual.
Pressure regulator o-rings are
dry.
Lubricate o-rings using o-ring lubricant
Part #05-008035.
Pressure regulator has worn
o-rings.
Check o-rings. If necessary, replace.
Pressure regulator is dirty,
stuck open, or improperly
adjusted.
Clean or repair pressure regulator.
Adjust to working pressure. Lubricate
o-rings, using o-ring lubricant
Part #05-008035.
Low pump volume. (Measure
the amount of water being
returned to the water box from
pressure regulator. It should
fill a gallon container about
every 20.0 seconds.)
Examine the check valves, plunger
cups, and cylinder head on the water
pump. Repair, whenever required.
(Refer to the water pump service
manual.)
Defective water pump
pressure gauge.
Replace gauge.
Orifice (spray nozzle) in the
cleaning tool is worn,
defective, or the wrong size.
Replace nozzle or change nozzle size.
Debris clogging water lines or
water inlet disconnect.
Clean or replace as needed.
Loss of water pump pressure
With the cleaning tool open, the water
pressure gauge reads below the
normal operating pressure.
Belt loose or broken. Re-tension or replace as needed.
Plugged orifice and/or screen
in the cleaning tool.
plug or replace orifice and/or screen.
Internal block between the
pressure regulator manifold
and the outlet Y-strainer, or
the Y-strainer screen is
clogged.
Inspect all lines, remove accumulated
debris which is blocking proper flow.
Replace any defective hoses. Remove,
inspect and clean the Y-strainer
screen. De-scale the unit and in stall a
water softener if necessary.
Outlet check valve is plugged. Examine the check valve, remove any
debris.
Defective quick-connect on
one or more of the high
pressure hoses.
Replace defective quick –connect(s) on
high pressure hose(s).
Cleaning tool valve is
malfunctioning.
Repair or replace valve.
Loss of solution volume at cleaning
tool orifice.
Water pressure gauge reads normal.
Hose inner lining is
constricted.
Remove restriction or replace.