Graco SaniSpray HP 65 Operation - Repair - Parts page 29

Problem
Spray Gun stopped spraying
while trigger is pulled.
Fan pattern varies dramatically
while spraying.
Cannot trigger Spray Gun.
Material is coming out of
pressure control.
Material leaks down outside of
pump.
Motor is hot and runs
intermittently. Motor
automatically shuts off due to
excessive heat. Damage can
occur if cause is not corrected.
3A7653D
Cause
Sprayer lost prime.
Pressure control switch is worn
and causing excessive
pressure variation.
Spray Trigger Lock is
engaged.
Pressure control is worn.
Pump packings are worn.
Vent holes in enclosure are
plugged or sprayer is covered.
Extension cord is too long or
not a heavy enough gauge.
Unregulated electrical
generator being used has
excessive voltage.
Motor needs to be replaced.
Troubleshooting
Solution
See troubleshooting section
"Sprayer runs, but pump does
not prime or loses prime while
in use." on page 28.
Replace Pressure Control or
Pump Assembly. See Parts,
pages 30-33.
Rotate Trigger Lock to
disengage trigger lock. See
page 13.
Replace Pressure Control or
Pump Assembly. See Parts,
pages 30-33.
Replace Pump Cartridge or
Pump Assembly. See Parts,
pages 30-33.
Keep vent holes clear of
obstructions and keep sprayer
open to air.
Replace extension cord. See
page 10.
Use electrical generator with a
proper voltage regulator.
Replace motor assembly. See
Parts - SaniSpray HP 65
(Quick Repair), page 30.
29