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TROUBLESHOOTING
CHART
WARNING
To
reduce the riskof
serious
bodily
injury,
includingfluid injection,
splashing
inthe
eyes
or
on
the skin
or
injury
from
moving
parts,
always
follow the
Pressure Relief Procedure Warnlng
before
proceeding.
Problem
Engine will
not
start
M
IS
hard to start
Engine misses or
lacks power
COW
pessure andlor
pump runs rough
Water leakage
from
under pump manifold
Water in pump
premature failure of
Frequent or
the packings
Strong
surging
at
the
inlet and low pressure
3n
the discharge side
Cause
No gasoline
in
fuel
tank or carburetor.
Low oil level.
StarVStop switch in Stop position.
Water
in
gasoline or old fuel.
Lwse
or wrong battery connection.
Battery not properly charged.
Choked improperly. Flooded engine.
Dirty air cleaner filter.
Spark
plug
dirty, wrong gap or wrong type.
Spray gun closed.
Partially plugged air cleaner filter.
Spark plug dirty, wrong gap or wrong type.
lnconecl
ignition timing.
Worn
or
wrong
size
tip.
Inlet filter Clogged.
Worn packings, abrasives
in
water or natural
wear.
Inadequate water suppiy.
Belt slippage.
Fouled or dirty inlet
or
discharge valves. Even
a smaii particle can
cause
the valve to stick.
Restricted inlet.
Worn inlet
or discharge vaives.
Leaking
high
pressure
hose.
Wom packings.
Humid air condensing inside crankcase.
Worn
packings.
Oil seals leaking.
Scored, damaged or wom plungers.
Abrasive material in the fluid being pumped.
Inlet water temperature
too
high.
Overpressurizing pump.
Excessive pressure due
to partially plugged or
damaged
tip.
Pump running too long without spraying.
Running pump dry.
Foreign
particles
in the inlet or discharge
valve or wom inlet and/or discharge valves.
Solution
Fill the tank with gasoline, open fuel shut
off
valve.
Check fuel line and carburetor.
Add
to proper level.
Move switch
to
start position.
dry spark plug.
Drain fuel tank
and
carburetor. Use new fuel and
Check and tighten battery connections.
Check electrolyte level of cells, recharge battery.
Open choke and crank engine several times to
clear out gas.
Remove and ciean.
Clean, adjust the gap or replace.
Trigger spray gun.
Remove and ciean.
Clean. adjust the gap or replace.
Time engine.
Replace
with tip of proper size.
Clean. Check'more frequently.
Check filter. Replace packings.
See
PUMP
SERVICE.
Check water flow rate
to pump.
Tighten or replace;
USB
wrrect
belts
and replace
both at same time.
filter.
Clean inlet and discharge valve assemblies. Check
Check garden hose. may
be
collapsed or kinked.
Replace wom valves.
Replace'high pressure hose.
Install new packings.
See
PUMP SERVICE.
3hange oil as specified in MAINTENANCE.
nStali new packings.
See
PUMP SERVICE.
nstail new oil seals.
See
PUMP SERVICE.
Install new plungers.
See
PUMP SERVICE.
Install proper filtration on pump Inlet plumbing.
Check watertemperature; may not exceed
16OOF.
Do
not
modify any factory-set adjustments.
See
EQUIPMENT MISUSE HAZARD.
Clean or replace
tip.
See
Installing and Changing
Spray
Tips.
Never
run
pump more than
10
minutes
without
spraying.
Do
not
run
pump without water.
Clean or replace valves.
See
PUMP SERVICE.
308-528
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