Trouble Shooting And Problem Solving - WAGNER ZIP52 Operating Manual

VERSION 12/2012
OPERATING MANUAL
8

TROUBLE SHOOTING AND PROBLEM SOLVING

Problem
The pump does not
work.
The unit is working (i.e.:
the pump is moving),
but no fl uid is delivered.
The material fl ow is
suspended.
The pump supply
decreases during work.
The pump supply
decreases during work,
and tends to stop
completely.
ORDER NUMBER DOC 2330426
Cause
The air motor does not work or
stops.
No pressure indication
(pressure regulator defective).
The delivery line is clogged.
Insuffi cient supply of compressed
air.
The fi lter in delivery line is clogged
(if installed).
The suction fi lter is clogged
(if installed).
No fl uid is available at the pump's
inlet.
The suction pipe is clogged or
leaking (possibility of sucking air in
from the atmosphere).
The suction pipe is partially
clogged.
Cavitation
(air bubbles in the liquid).
The material check valve doesn't
completely close.
Partial clogging of the delivery line. Check the delivery line.
Deviations of the material
characteristics (like viscosity).
Ice formation inside the air outlet
pipes.
The delivery manifold valves guides
are worn-out.
Remedy
Close the air cutoff valve, increase the
pressure and open the air cutoff valve
immediately.
Disconnect compressed air supply briefl y or
repair or replace the pressure regulator.
Check the delivery line.
Check the compressed air supply.
Clean or replace the fi lter.
Carefully clean the fi lter.
Check the fl uid level in the tank or
container.
Check the suction pipe. Replace it if
necessary.
Check the suction pipe. Replace it if
necessary.
Check the suction in the tank. Exclude air
intake due to high viscosity.
Check for impurities on the valve seats.
Replace the check valves if necessary.
Check the material characteristics.
Check the compressed air quality.
Install a condensation separator on the air
line.
Install an air dryer if necessary.
Fill one lubricant with special de-icing fl uid.
Replace the delivery manifold (or in the case
of plastic pumps, replace the insert).
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