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Page 3-4
3.0 MAINTENANCE
Area Problem Possible Cause Solution
High Pressure
System
No water from pump
or low pressure
Out of Water
Fill water tank
Gun nozzle plugged
Remove orifice with Allen wrench and
clean
Air in pump (vapor lock)
Use power prime technique
Gun orifice missing
Replace orifice
Water tank filter plugged Clean tank and filter
In - line bowl filter
plugged
Remove filter cover and clean
Bowl filter lid loose
Gently tighten bowl cover
Pressure hose damaged Repair or replace
Quick disconnect leaking Tighten or replace
Injector plugged
Remove safety cap from chemical and
blow small amounts of compressed air
into line
Pulse hose damaged
Repair or replace
Regulator failed
Replace
Hose kinked
Unkink and check for damage
Seals in pump need re-
placed
Remove and replace seals
Bad fan pattern or
pinpoint pattern on
gun
Debris in nozzle
Remove orifice with Allen wrench and
clean
Orifice damaged
Remove and replace
No chemical flow
Out of chemical
Refill chemical
Chemical Injection
System
Safety cap not secure
Check safety cap / tighten
Chemical valve “off”
Check on / off valve
Safety cap plugged
Replace cap
Spray gun in wrong
mode
Make sure gun nozzle is pulled out
away from gun chemical mode
Metering tip plugged
Check metering tip for clog
Injector plugged
Remove safety cap from chemical and
blow small amounts of compressed air
into line
Air entering system
Check for air entering system around
chemical lines or injector
Injector installed back-
wards
If fluttering or pulsing sound can be
heard while spraying or when machine
is running it is possible that your injec-
tor is in backwards. Remove and rein-
stall
Kink in Chemical line
Replace Chemical line
