38
OPERATING MANUAL
VERSION 09/2016
ORDER NUMBER DOC 2366672
Problem
Cause
Remedy
The pump does not work.
The pump does not start or stops.
Open and close ball valve on the
pressure regulator unit or briefl y
disconnect compressed air supply.
No pressure indication on the
pressure gauge (air pressure
regulator defective).
Disconnect compressed air supply
briefl y or repair or change pressure
regulator.
Spray nozzle is clogged.
Clean the nozzle according to the
instructions.
Insuffi
cient compressed air supply.
Check compressed air supply.
Filter insert in spray gun is clogged. Clean the parts and use a suitable
working material.
The fl uid section or high-pressure
hose is blocked (e.g., the 2K
product has hardened).
Dismount and clean fl 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 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.
Press valve depressor.
Clean product pump and leave to
soak in cleaning agent if necessary.
Foreign body in suction valve.
Dismantle suction valve housing,
clean and check valve seat.
Diameter of compressed air line
too small.
Assemble a larger supply line
-> Technical data, see Chapter 5.4.2.
Valves or packings are worn out.
Replace the parts.
Control air fi lter or work air fi lter is
clogged.
Check fi lter and clean it if necessary.
Strongly irregular operation
of product 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 fi lter is clogged.
Clean fi lter.
Valves are clogged.
Press valve depressor.
Clean product pump and leave to
soak in cleaning agent if necessary.
9
TROUBLESHOOTING, MAINTENANCE AND REPAIR
9.1
TROUBLESHOOTING AND RECTIFICATION
