Piston
packings
worn
or
damaged
Intake valve
ball
check
nd
seating
Replace packings.
See
page
26.
Clean and service intake valve.
See
page
26.
properly
EngineRPM twlow
Clutch worn or damaged
Replace Clutch.
See
page
34.
~~
Increase thrdtie
wing.
See
Startup,
Steps
5b and
14,
page
14.
I
I
Partially clogged suction
tube
assembly Remove and clean suction
tube.
During normal
flushing
remove and clean
the
suction
tube
as-
sembly separately
to
prevent further ciMging.
I
1
SOLUTION
CAUSE
PROBLEM
Engine
starts
but
dies
upstroke
Clean screen. Pump
Inlet
screen clogged
Displacement pump output low
on
Add
oil.
011
level
drops
below
oil
senw
Piston
ball
check
nd
seating
Replace sleeve gasket.
See
page
26.
Sleeve gasket in displacement pump
Replace paCklngS.
See
page
26.
Piston paCkingS wom or damaged
Service
piston
ball
check. See
page
26.
worn
or
damaged
-
Displacement pump output
low
on
downstroke
or
both
strokes
Pump inlet screen Clogged
Clean scram.
-
I
-
I
-
'aint leaks into wet-cuD
Loose
wet-cup
Replace displacement rod.
See
page
26.
Displacement rod worn or daInaged
Replace packings.
See page
26.
Throat
packings worn or damaged
Tighten Wet-CUP
jUSt
EllOUgh
10
Stop leakage.
IIW
fluid delivery
I
Pump
inlet
screen
clogged.
I
Clean &reen.
I
Pressure setting
too
low
I
Increase pressure.
See
Startup,
step
14,
page
14.
I
Engine RPM
tw
low Increase throttle setting.
See
Startup,
.-
Steps
5b and
14,
page
14.
Dirty
outlet
filter,
tip
filter or tip
I
Clean filterS and/or
tips.
I
Large pressure drop in hose
I
Use
larger diameter
hwe.
Spitting from
gun
Air
in
fluid pump
or
hose Check for
lwse
connections at pump Intake am
tighten. mem prime the pump.
Fluid supply
is
low
or
empty
cleaned
suction
tube
assembly
Dried paint particles from a poorly
Refillandprimethepump.SeeStsrtup,page14,
Check fluid supply ofien
to
prevent running the
fiUShlng remove and clean the suction
tube
as
Remove and clean suciion
tube.
During norma
sembly separately
to
prevent further clwaina.
308-105
25
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