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GA 250AL_GA 400AL.
25
OPERATING MANUAL
EDITION 07 /2005 PART NO. DOC0350941
7 TROUBLESHOOTING AND SOLUTIONS
Problem Cause Solution
Paint output too low • Nozzle too small •Select larger nozzle (see
chapter. 8.1)
• Paint pressure too
low
• Adjust material pressure
required.
• Nozzle blocked •Clean nozzle (see chapter 5.0)
•High-pressure fi lter of
pump blocked
•Clean or replace fi lter
Poor quality spray pattern • Nozzle damaged • Replace the nozzle
• Nozzle too large •Select smaller nozzle (see
chapter 8.1)
• Paint pressure too
low
• Increase pressure
•Material viscosity too
high
• Thin material acc. to
manufacturer‘s instruction.
• Nozzle partially
blocked
•Clean the nozzle (see chapter
5.4.3)
Valve stem leaks •Packing worn • Sealing-screw retighten
• Replace the packing on the
valve stem (see chapter 6.2)
• Valve stem demaged • Replace valve stem
Spaygun will not shut-off
correctly, dripping
•Valve seat or valve ball
is worn out
• Check valve stem and fl at
jet nozzle and replace the
wornpart.
•Packingscrew too
tight
•Check tightness, if required
loosen, then re-tigthen ac-
cording to chapter 6.2.2