Table of Contents
Advertisement
VERSION 11/2015
OPERATING MANUAL
9
TROUBLESHOOTING AND RECTIFICATION
Problem
The pump does not
work
Poor spray pattern
Irregular operation of
the pump: spray jet
collapses (pulsation)
The pump runs
smoothly but does not
suck up any product
Pump runs when the
gun is closed
The air motor is iced
up
If none of the causes of malfunction mentioned are present, the defect can be remedied by a WAGNER Service
Center.
ORDER NUMBER DOC2333553
Cause
Air motor does not work or stops.
No pressure indication on the
pressure gage (air pressure regulator
defective).
Spray nozzle is clogged.
Insuffi cient compressed air supply.
Filter insert in spray gun is clogged.
Fluid section or high-pressure
hose are blocked (e.g., 2K product
hardened).
Sometimes, the pump stops at a
switching point.
See the gun instructions.
Viscosity is too high.
Spraying pressure is too low.
Valves are clogged.
Foreign body in suction valve.
Diameter of compressed air line too
small.
Valves, packings, or pistons are worn
out.
Pressure regulator fi lter is clogged.
The suction system's union nut is
loose; the pump is taking in air.
Suction fi lter is clogged.
Ball in suction or piston valve is stuck. Clean balls and valve seats.
Packings, valves, or pistons are worn
out.
There is a lot of condensation water
in the air supply.
Remedy
Open and close ball valve on the pressure
regulator unit or briefl y disconnect
compressed air supply.
Disconnect compressed air supply briefl y or
repair or change pressure regulator.
Clean the nozzle according to the
instructions.
Check compressed air supply.
Clean the parts and use a suitable working
material.
Dismount and clean fl uid section, replace
high-pressure hose.
Press the starter on the reverse valve and
restart the pump.
Clean the slide on the reversing valve
carefully and if necessary lubricate it with a
light layer of oil.
Thin spraying product.
Increase incoming air pressure.
Use a smaller nozzle.
Clean pump, if necessary leave it to soak in
solvent.
Dismantle suction valve housing, clean and
check valve seat.
Assemble a larger incoming line ->
Technical Data, Chapter 5.5.2.
Replace the parts.
Check fi lter and clean it if necessary.
Tighten union nut.
Clean fi lter.
Replace the parts.
Install a water separator.
51
Advertisement
Table of Contents
