TROUBLESHOOTING CHART.
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To reduce the risk of serious bodily injury, including fluid injection,splashing in theeyes or on theskin, or injury from movingparts, always follow thePressure Relief Procedure Warning pageon 7before proceeding.
PROBLEM
Low Pressure
CAUSE | SOLUTION |
Worn noale. | Replace with noaleof propersize. |
Coupling slippage. | Tighten orreplace. |
Air leak in inlet plumbing. | Disassemble, reseal, replace bad parts, |
Inlet filter clogged. | and reassemble. |
Clean. Use adequate size. Checkmore | |
| frequently. |
Worn packing. Abrasivesin | Install proper filter.Check flow available to |
pumped fluid or severe cavita- | pump. Replace packings. |
tion. Inadequate water supply. | Clean inlet and discharge valve assemblies. |
Fouled ordirty inlet or dis- | |
charge valves. |
|
Worn inlet or discharge valves. | Replace worn valves, valve seats and/or |
Leaky discharge hose. | discharge hose. |
Pressure adjustment set down. Turn adjustment knobin to increase pressure.
Pump runs exiremely rough, pressurelow.
Water leakage from under the manifold.
Water in pump crankcase.
Frequent or premature failure of the packing.
Strong surging atthe inlet and low pressure on the discharge side.
Unit will not start.
Chemical injection system doesn't work.
Restricted inlet or air entering the inlet plumbing. Inlet restrictions and/orair eaks. Stuckinlet or discharge ilalve.
Leaking high pressure seals. nadeouate water'suoolv.
aorn packings.
Norn packings. 3il seal leaking.
May be caused byhumid air :ondensing into water inside he crankcase.
scored, damaged, orworn hngers.
Urasive material in the water )eing pumped.
nlet water temperature too ligh.
Iver pressurizing pump.
ixcessive pressure dueto lartially pluggedor damagedtip
'ump running too long vithout spraying or cleaning. iunning pump dry.
breign particles in the inlet or ,ischarge valve, orworn inlet nd/or discharge valves.
hit not plugged in. 'lectric motor overheated
lectric serviceoff. :hemica1injector clogged.
>djustablenoale completely Iosed.
3w chemical level.
Proper size inlet plumbing; checkfor air tight seal.
Clean out foreign material, replaceworn valves.
Replace seals.
Check flow available to oumo.
Replace packings
Replace packings. Replace oil seals.
Change oil at 3 month or 500 hour intervals.
Xeplace plungers.
nstall proper inletfilter.
:heck inlet water temperature;be iure not to exceed 16OoF.
Jo not modify any
:lean or replace tip.
Uever run pump morethan 10 ninutes without spraying or cleaning. 10 not run pump without water.
leplace or cleanvalves.
:heck power cord.
.et motor cool andpush reset bunon In motor.
:heck fuse/circuit breaker panel.
)isassemble chemical valveand clean. :heck and clean chemical hose andfilter. 'urn controlring on noale clockwise
1 cause dropin pressure: :heck level of chemical.
8802-777
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