Wagner SprayTech GA 400AL - Manual (Page 25)

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