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TROUBLESHOOTING CHART
WARNING
To
reduce
the
risk of serious bodily injury,
including
fluid
injection,
splashing
in
the eyes
or
on
the
skin,
or
injury
from
moving
parts,
always fallow
the
Pressure
Relief
Procedure
Warning before proceeding.
PROBLEM
DW
pressure and/or
ump runs rough
rater leakage from
nder pump manifolc
rater
in
pump
'eqequent
or
emature failure of
18
packings
lrong surging at the
let
and low pressurt
1
the
discharoe side
nit
will
nd
start
CAUSE
I
SOWTION
Wom or wrong size
tip.
Inlet filter clogged.
Wom packings, abrasives
in
water or
natural wear.
Inadequate water supply.
Coupling slippage.
Fouled
or
dirty
inlet or discharge valves.
Even a small particle can cause the valve
lo
stick.
Reslricted inlet.
Worn inlet or discharge valves.
Leakina hiah msure hose.
Replace with tip
of
proper size.
Clean. Check more frequently.
Checlc filter. Replace packings.
See
PUMP SERVICE.
Check water flow
rate
to
pump.
Tighten or replace.
filter.
Clean Inlet and discharge valve assemblies. Check
Check
garden
hose. may
be
collapsed or
kinked.
Replace
worn
valves.
Reolace hlah mwre hose.
Wom packings.
Install new packings.
See
PUMP SERVICE.
Humid air condensing inside crankcase. Change oil as specified in MAINTENANCE.
Wom packings.
Install new oil seals.
See
PUMP SERVICE. Oil seals leaking.
Install new packings.
See
PUMP SERVICE.
Scored, damaged or worn plungers. Install new plungers.
See
PUMP SERVICE.
Abrasive material in the
fluid
being
pumped.
Install proper filtration on pump inlet plumbing.
Inlet water temperature
too
high.
Check water temperature; may
not
exceed
160°F.
Overpressurizing pump.
Do
not modify any factory-set adjustments.
See
EQUIPMENT MISUSE
HAZARD.
Excessive pressure due
to
partially plugged or replace
tip.
See
Installing and Changing Spra)
or damaged tip.
Pump running
too
long without spraying.
valve or wom inlet and/or discharge valves.
Running pump dry.
Never run pump more than
10
minutes without spraying
Foreign particles
in
the inlet or discharge
Clean or replace valves.
See
PUMP SERVICE.
Unit not plugged
in.
Check power cord.
Electrical service off/GFCI activated.
Check fuse/circuit breaker. Check for proper
mermai overload has tripped.
Do not
run
pump without water.
grounding.
Press
stop button on
the
motor starter.
308-522
9