PSG Dover Accu-Flo, Инженерия, эксплуатация и обслуживание

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WIL-10070-E-03
Wilden
®
15
Suggested Installation, Operation, Maintenance and Troubleshooting
Troubleshooting
Pump will not run.
1. Check for pressurized air at the inlet.
2. Check air inlet and filter for debris.
3. Connect a test lamp to the two wires which run to pump
and ensure that the lamp cycles on and off.
4. Make sure that the air valve manual override (small red
knob on front of valve) is switched to the “0” position.
5. Check pilot pressure vent at the top of the operator/coil
assembly to ensure that it is not clogged.
6. Check for a worn out air valve. If air continually blows out
the exhaust in very large quantities, the air valve seals
may be worn beyond their ability to function. In this case,
the valve must be replaced.
7. NOTE: Before the valve is scrapped, it is possible that it
may be saved by completely disassembling the valve,
cleaning all components and relubricating the valve.
Pump runs but little or no fluid comes out.
1. Check that the discharge isolation valve is not closed.
2. Check that the electronic signal is slow enough that the
pump is able to complete each physical stroke before it
is signaled to change direction. The time required to
complete the stroke is determined by a variety of factors
which include fluid viscosity and head pressure.
3. Check for pump cavitation; slow pump speed down to
match the thickness of the material being pumped.
4. Check for sticking ball check valves. If the material being pumped is
not compatible with the pump elastomers, swelling may occur.
Replace ball check valves and o-ring with the proper elastomers.
5. Check to make sure that all suction connections are air tight, and
that the clamp bands are properly tightened.
Pump rattles.
1. See E9 Troubleshooting Guide.
2. Create false discharge head or suction lift.
Solenoid buzzes or solenoid burnout.
1. Incorrect voltage, faulty or dirty solenoid.
Solenoid valve fails to shift electrically but shifts
with manual override.
1. Incorrect voltage, defective coil or wiring.
Solenoid valve fails to shift electrically or with
manual override.
1. Inadequate air supply, contamination, inadequate or improper
lubrication, mechanical binding in the valve.
Valve shifts but fails to return.
1. Solenoid buzzes or solenoid burnout. Incorrect voltage, faulty
or dirty solenoid. Solenoid valve fails to shift electrically but shifts
with manual override. Incorrect voltage, defective coil or wiring.
Excessive leaking from air valve vent.
1. Worn seals in air valve.