48
150 cm3 - 300 cm3
OPERATING MANUAL
VERSION 05/2015 ORDER NUMBER DOC2340282
9 TROUBLESHOOTING AND RECTIFICATION
Problem Cause Remedy
The pump does not work Air motor does not work or stops. Open and close ball valve on the
pressure regulator unit or brie y
disconnect compressed air supply.
No pressure indication on the
pressure gage (air pressure
regulator defective).
Disconnect compressed air supply
brie y or repair or change pressure
regulator.
Spray nozzle is clogged. Clean the nozzle according to the
instructions.
Insu cient compressed air supply. Check compressed air supply.
Filter insert in spray gun or high-
pressure lter is clogged.
Clean the parts and use a suitable
working material.
Fluid section or high-pressure
hose are blocked (e.g., 2K product
hardened).
Dismount and clean uid section,
replace high pressure hose.
Grease in spool and sleeve
assembly.
Degrease spool and sleeve assembly.
Pump stops at the stroke end
occasionally.
Check detent element (see service
manual).
Poor spray pattern See the gun instructions.
Irregular operation of
product pump: spray jet
collapses (pulsation)
Viscosity is too high. Thin spraying product.
Spraying pressure is too low. Increase incoming air pressure. Use a
smaller nozzle.
Valves are clogged. Clean product pump, if necessary leave
to soak in ushing agent.
Foreign body in suction valve. Dismantle suction valve housing, clean
and check valve seat.
Diameter of compressed air line too
small.
Assemble a larger incoming line
-> Technical Data, Chapter 5.5.3.
Valves, packings, or pistons are
worn out.
Replace the parts.
Control air lter or work air lter is
clogged.
Check lter and clean it if necessary.
The pump runs smoothly
but does not suck up any
product
The suction system's union nut is
loose; the pump is taking in air.
Tighten union nut.
Suction lter is clogged. Clean lter.
Ball in suction or piston valve is
sticking.
Clean with ushing agent (if necessary
vent device).
Pump runs when the gun
is closed
Packings, valves, or pistons are
worn out.
Replace the parts.
The air motor is iced up There is a lot of condensation water
in the air supply.
Install a water separator.
If none of the causes of malfunction mentioned are present, the defect can be remedied by a WAGNER Service
Center.