MANUAL - SPRAY GUN CLEANERS - UG5000 SERIES
Revision 2008-02
10
TROUBLESHOOTING CHART
SYMPTOM
REASON CORRECTIVE ACTION
WASH SOLVENT OR WATER
DOES NOT FLOW AND
PUMP MAKES A NORMAL
PUMPING SOUND
• Drain valve closed
• Solvent or water level too
low
• Paint debris in pump
• Blockage in solvent line
After Each Step Below, Turn
Timer(Solvent) or Foot pedal(
Water). If solvent does not flow,
carry out next step.
• Open drain valve(UG4000) (put
in verticle position), if not
already open
• Check wash solvent level. Add
solvent if less than 1/2 full.
• Follow Procedure 1, Blocked
Fluid Passage in Diaphragm
Pump.
• Follow Procedure 4, Blocked
Passage in Solvent Line
WASH SOLVENT OR WATER
DOES NOT FLOW AND
PUMP MAKES A HISSING
SOUND
• Water in air line causes
pump to stall
• Follow Procedure 2, Blockage
in Air Passage in Diaphragm
Pump
WASH SOLVENT OR WATER
DOES NOT FLOW AND
PUMP DOES NOT MAKE A
SOUND
• Pump leaks
• Blockage in air passage
• Replace pump
• 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
(UG4000VM)
• Replace timer
TIMER KNOB SPINS BACK
WHEN TURNED
• Defective timer
• Replace timer
INSIDE WALL OF TANK IS
COATED WITH PAINT EVEN
THOUGH OPERATOR MAIN-
TAINS 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
