Graco SaniSpray HP 65, Операция - Ремонт - Запчасти, Страница: 28 / 40

Troubleshooting
28 3A7653D
Sprayer runs, but pump does
not prime or loses prime while
in use (pump cycles but does
not pump material or build
pressure).
Inlet valve check ball is stuck. Press PushPrime Button to
dislodge the ball allowing
pump to prime properly.
Prime/Spray Valve is in
SPRAY position.
Turn Prime/Spray Valve down
to PRIME position until
material exits Drain Tube. The
pump is now primed.
Inlet strainer is clogged or
Hopper is empty.
Clean debris off inlet strainer
and make sure there is fluid in
Hopper.
Inlet valve check ball or seat is
dirty.
Remove Inlet Valve. Clean ball
and seat. See Inlet Valve
Removal , page 26.
Outlet valve check ball is
stuck.
Unscrew outlet valve, remove,
and clean assembly.
Prime/Spray Valve is worn or
obstructed with debris.
Replace Prime/Spray Valve or
replace pump assembly. See
Parts , pages 30-33.
Pump is primed, but can not
achieve good spray pattern.
Spray Tip is in UNCLOG
position.
Rotate arrow-shaped handle
on Spray Tip so it points
forward to SPRAY position.
Pressure is set too low. Increase pressure setting of
Pressure Control Knob.
Spray Tip gasket and seal
worn or missing.
Replace gasket and seal. See
page 17.
Inlet strainer is clogged or
Hopper is empty.
Clean debris off inlet strainer
and make sure there is fluid in
Hopper.
Extension cord is too long or
not heavy enough gauge.
Replace extension cord. See
page 10.
Inlet Valve or outlet pump
valve is worn or clogged with
debris.
Check for worn or
contaminated inlet valve or
outlet valve.
•
Prime sprayer.
•
Trigger Spray Gun
momentarily.
•
When trigger is released,
pump should cycle
momentarily and stop.
•
If pump continues to cycle,
pump valves may be worn
or contaminated with
debris.
•
Replace Inlet Valve or
Pump Assembly. See
Parts , pages 30-33.
Airless Hose is too long (if
extra section was added).
Remove section of Airless
Hose.
Problem Cause Solution