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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
tom
moving
palls,
always
follow
the
Pressure
Relief
Procedure
Warnlng
before proceeding.
1
PROBLEM
Engine
will
not
stail
or
is
hard
to
start
Engine misses or
lacks power
Low pressure and101
pump runs rough
Water leakage from
under pump manifol
Water In pump
Frequent or
the packings
premature failure of
Strong surging at
thc
inlet and low
pressure on the
CAUSE
No gasoline in
fuel
tank
M
carburetor.
Low oil.
WSlop switch in
Slop
position.
Water In gasoline or old
fuel.
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.
Worn
or
wrong
size
tip.
inlet filter dogged.
Worn packings. abrasivs in water or
natural wear.
Inadequate water supply.
Belt slippage.
Fouled
or
dirty inlet or discharge valves.
Even a small particle
can
cause the valve
lo
stick.
Restricted inlet.
Worn
inlet or discharge valves.
Leaking high pressure hose.
Worn
packings.
Humid air condensing inside crankcase.
Nom
pkings.
Oil
seals leakino.
bred.
damaged or
worn
plungers.
ruKaslve material in
the
fluid being pump
Inlet water temperature
too
high.
3verpressurizing pump.
3cessive pressure due
to
partially pluggec
3r
damaged tip.
'ump running
too
long without spraying.
3unning pump dry.
=oreign particles in
the
inlet or discha
e
lake or wom inlet and/or discharge
va
'B
yes.
SOWTION
Check fuel line and carburetor.
Fill
the tank with gasoline, open
fuel
shut
off
valve.
Add
to
proper level.
Move switch
to
Start position.
spak
Plug.
Drain
fuel
tank and carburetor. Use new
fuel
and dry
out gas.
Open choke and crank engine several times to clear
Remove and clean.
Clean, adjust the gap or replace.
Trigger spray gun.
Remove and clean.
Clean, adjust the gap or replace.
Replace
with
tip
of
piopsr size.
Clean. Check more frequently.
Check filter. Replace packings.
See
PUMP SERVICE.
Check water flow rate
to
pump.
Tighten or replace;
use
correct
beits and replace both
at same time.
filter.
Clean inlet and discharge
valve
assemblies. Check
Check garden hose, may
be
collapsed or kinked.
Replace worn valves.
Replace high pressure hose.
Install new packings.
See
PUMP SERVICE.
Change oil
as
specified in MAINTENANCE.
Install new packings.
See
PUMP SERVICE.
Install new oil seals.
See
PUMP SERVICE.
Install new plungers.
See
PUMP SERVICE.
Install proper filtration on pump inlet plumbing.
Check
water temprature; may not
exceed
160°F.
EQUIPMENT MISUSE
HAZARD.
Do
not modify any factory-set adjustments.
See
Clean or replace tip.
See
Installing and Changing Spray
lips.
Never run pump more than
10
minutes without spraying,
Do
not run pump wlthoul water.
Clean or replace valves.
See
PUMP SERVICE.
308-531
Q