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Troubleshooting7
10
Possible problems and solutions for the Series 9000 Rotospray Pump.
Troubleshooting Guide
Problem Cause Solution
Pump does not dispense product
and the Stroke Adjuster Knob
does not move when the pump
is cycled.
Pump does not dispense product
and the Stroke Adjuster Knob
moves very slowly when the pump
is cycled.
Pump does not dispense product
but the Stroke Adjuster Knob
moves normally when the pump
is cycled.
Product leaks from dispenser.
No air supply.
Low air pressure.
Stroke Adjuster Knob set to zero
stroke.
Pump air actuator defective.
Control valve faulty.
Control logic problem.
Cured product in pump.
Cured product in outlet
tubing or applicator.
Product reservoir empty.
Pump is air bound.
Cured product in inlet tubing
or fittings.
Pump check valve defective.
Pump check valve defective.
Dispenser is located at a lower
level than the pump.
Air in product.
Pump outlet tubing too long.
Pump outlet tubing expands on
pump cycling.
All four (4) Items just above.
Turn on air supply.
Adjust air pressure to at least 60
psi.
Reset Stroke Adjuster Knob.
Replace actuator.
Replace control valve.
Check program and components.
Replace pump.
Replace tubing or applicator.
Refill reservoir.
Reprime pump and check pump
inlet fittings.
Replace tubing or fittings.
Replace pump.
Replace pump.
Reposition pump so that it is
about 4 inches (100 mm) below
the dispenser.
Do not shake product bottle
before filling reservoir.
Mount pump as close as possible
to dispenser.
Change original 1/4-inch OD
polyethylene tubing to 1/4-inch
OD nylon tubing Loctite Part No.
999488.
Modify process to reduce drool.
Change timing on rotospray spin
time to get clean dispense.