MANUAL - SPRAY GUN CLEANERS - UG7500 SERIES
REVISION 2011-05
10
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SYMPTOM
REASON
CORRECTIVE ACTION
• Drain valve closed
•
Open drain valve (put in verticle
position), if not already open
Check wash solvent level. Add
solvent if less than 1/2 full.
• Solvent level too low
•
Check wash solvent level. Add
solvent if less than 1/2 full
•
Paint debris in pump or
blockage in solvent line
•
Follow Procedure 1, "Blocked
Fluid Passage in Diaphragm
Pump"
WASH SOLVENT DOES NOT
FLOW AND PUMP MAKES A
HISSING NOISE
•
Water in air line causes
pump to stall
•
Follow Procedure 2, "Blockage in
Air Passage in Diaphragm Pump"
• Pump leaks
• Replace pump
• Blockage in air passage
•
Follow Procedure 3, "Blocked
Passage in Air Line".
PUMP DOES NOT STOP
UNLESS TIMER IS TURNED BY
HAND OR AIR IS SHUT OFF
• Defective Timer
• Replace timer
TIMER KNOB SPINS BACK
WHEN TURNED
• Defective Timer
• Replace timer
INSIDE WALL OF TANK IS
COATED WITH PAINT EVEN
THOUGH OPERATOR
MAINTAINS TANK
•
Solvent lacks cleaning
strength
•
Replace solvent with solvent that
is formulated for type of paint used
and for use with automatic spray
gun cleaning
GUNS NOT CLEAN, PUMP
WORKING, SOLVENT FLOW
NORMAL
•
Trigger not locked in open
position
• Use Trigger Lock Spring
•
Spray gun is not properly
installed onto nozzle
• Re-install with proper adapter
• Incompatible solvent
•
Replace incompatible solvent with
solvent formulated for the type of
paint used and for Automatic
Spray Gun Cleaners.
• Low pressure in air supply •
Increase air pressure to a
minimum of 85 PSI
• Plugged jets
•
Remove and clean by blowing air
through the jets. If not successful,
replace.
GUNS NOT CLEAN, WASH
SOLVENT IS MILKY WHITE
•
Wash solvent is
contaminated with water
• Replace or recycle wash solvent
GUNS NOT CLEAN, WASH
SOLVENT IS MILKY WHITE
WASH SOLVENT DOES NOT
FLOW AND PUMP MAKES A
PUMPING NOISE
WASH SOLVENT DOES NOT
FLOW AND PUMP DOES NOT
MAKE A NOISE
TROUBLESHOOTING CHART - UG7500 SERIES
