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VERSION 02/2019
9
TROUBLESHOOTING AND RECTIFICATION
Functional fault
Cause
Insufficient product
Nozzle too small
output
Product pressure too low
Filter on product pressure generator
blocked
Nozzle is clogged
Product valve travel set too low
Poor spray pattern
Incorrectly adjusted atomizing air Readjust the atomizing air.
Unfavorable nozzle size
Product pressure too high/too low Adapt product pressure.
Spray product viscosity too high
Damaged nozzle
Needle or needle
Needle packing (seal) on the
packing leaky
needle damaged
Air valve leaks
Air valve damaged
Spray gun will not
Nozzle nut not tightened enough
shut off correctly
Nozzle or needle damaged
ORDER NUMBER DOC 2397374
TOPFINISH GM 1030P
Remedy
Select larger nozzle.
Increase product pressure.
Clean or replace filter.
Clean or replace nozzle.
Increase product valve travel by
turning the adjusting screw.
Select a different nozzle.
Thin product in accordance with
the spray product manufacturer's
instructions.
Attach new nozzle.
Replace needle packing (seal).
Replace air valve.
Tighten nozzle nut.
Replace nozzle or needle.
See Chapter
13
7.5, 10.9
13
10.9
10.4
10.5
10.8
10.9
33
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