43
OPERATING MANUAL
VERSION 01/2013
ORDER NUMBER DOC 2333538
8
TROUBLE SHOOTING 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 disconnect
compressed air supply shortly.
No pressure indication on pressure
gauge (pressure regulator defect).
Disconnect compressed air supply
shortly or repair or replace pressure
regulator
Spray nozzle is clogged.
Clean nozzle according to the
instructions.
Insuffi
cient compressed air supply.
Check compressed air supply.
Filter insert in spray gun or high
pressure fi lter is clogged.
Clean the parts and use a suitable
working material.
Fluid section or high pressure hose
are blocked (e.g., two-component
material hardened).
Dismount the fl uid section and clean,
replace high pressure hose
Grease in spool and sleeve
assembly.
Degrease spool and sleeve assembly.
Pump stops at the stroke end.
Check detent element
(see service manual).
Poor spray pattern
See gun operating manual.
Irregular operation of
fl uid section: spray jet
collapses (pulsation)
Viscosity too high.
Thin spraying material.
Spraying pressure too low.
Increase incoming air pressure. Use
smaller nozzle.
Valves are clogged.
Clean fl uid section, if necessary leave to
soak in fl ushing agent.
Foreign body in suction valve.
Dismount suction valve housing, clean
and check valve seat.
Diameter of the compressed air line
too small.
Assemble a larger incoming line ->
Technical data, Chapter 5.3.3
Valves, packings or pistons worn
out..
Replace parts.
Control air fi lter or work air fi lter is
clogged.
Check fi lter and clean it.
Pump runs evenly,
however does not suck up
material
Union nut of the suction system is
loose, pump is taking in air.
Tighten the union nut.
Suction fi lter clogged.
Clean fi lter.
Ball in suction or piston valve is
sticking.
Clean with fl ushing agent
(if necessary vent device).
If none of the causes of malfunction mentioned is present, consult your WAGNER Service Center.
