Filter
Top Products
35
OPERATING MANUAL
VERSION 10/2013
ORDER NUMBER DOC 2303675
8 TROUBLESHOOTING, MAINTENANCE, AND REPAIR
Problem Cause Remedy
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 is
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 body.
Poor spray pattern. See gun instructions.
Irregular operation of product
pump: spray jet collapses
(pulsation)
Viscosity is too high. Thin spraying product.
Spraying pressure is too low. Increase air inlet pressure.
Use a smaller nozzle.
Valves are clogged. Press valve depressor.
Clean product pump and leave to soak
in cleaning agent if necessary.
Foreign body in suction valve. Dismount suction valve housing, clean,
and check valve seat.
Diameter of compressed air line too
small.
Assemble a larger supply line
-> Technical data, see Chapter 5.2.2.
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.
Strongly irregular operation
of material pump.
Diaphragms "blocked" because
suction is too fast.
Operate pump with ball valve opened
a minimal amount for a while.
The pump runs evenly, does
not however, suck up product.
The suction system's union nut is
loose; the pump is taking in air.
Tighten.
Suction lter is clogged. Clean lter.
Valves are clogged. Press valve depressor.
Clean product pump and leave to soak
in cleaning agent if necessary.
8.1 TROUBLESHOOTING AND RECTIFICATION