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Page 4-6
4.4 Maintenance
Item
Procedure
Spray Gun
Check spray pattern. IF spray pattern will not pinpoint, clean orifice by removing it
with an Allen wrench and flushing. Replace if not pinpointing.
If nozzle becomes difficult to move from high to low pressure, lubricate the nozzle
with lithium grease.
Pressure Hose
Wipe clean after each use.
Check for cuts or frays in the hose jacket, particularly at the end of the fittings. Re-
place hose if cuts are found.
Chemical System
Weekly flush the chemical system. With the Chemical Valve in the ON position, de-
tach chemical line from chemical bottle and place into cup or bottle of fresh water,
spray in low pressure setting for 30 seconds.
Leaks
Be alert for leaks around hoses, fittings, spray gun, or elsewhere.
Discontinue use until leaks are repaired.
Electrical System
The GFCI (ground fault circuit interrupter) must be tested before each use.
Electric cord must be regularly inspected for tears or cuts in the insulation. If tears
or cuts are found repair immediately.
Area
Problem
Possible Cause
Solution
Electrical
No power to
pump motor
Machine not plugged in
Plug machine in to outlet
Switch not “ON”
Check if switch is “ON”
GFCI on Pump Box tripped
Test or reset GFCI
Building circuit overloaded
Plug vacuum into different circuit and reset
the building circuit breaker
Switch wires or connections loose
on Pump Box (only if connected to
Pump Box)
Disconnect power and check for loose wires
under control panel of Pump Box
Electrical burn-
ing smell
Pump motor brushes worn or motor
jammed
Release pressure on spray line and jog pump
switch, if problem persists, remove pump mo-
tor and repair or replace.
High Pressure
System
Out of water
Fill water tank
No water from
pump or low
pressure
Gun nozzle clogged
Remove orifice with Allen wrench and clean
Air in pump (vapor lock)
Power Prime Technique:
Remove spray
gun from spray line, turn ON pump and vac-
uum, turn on mini-ball valve on spray line,
hold spray line end in the vacuum hose to
suck water through the spray line.
Gun orifice missing
Replace orifice
Pump box Filter clogged
Clean filter
4.5 Troubleshooting
4.0 OMNIFLEX PUMP SYSTEM
