9.4 Troubleshooting table
Troubleshooting table
Spray pattern
Error
Cause
Remedy
Normal flat jet spray pattern
Spray pattern too
heavy towards the top
and towards the
bottom
n
Dirty air nozzle
n
Dirty fluid nozzle
Clean nozzles
Spray pattern concen-
trated on the left or
right side
n
Dirty air nozzle
n
Dirty fluid nozzle
Clean nozzles
Heavy application in
the centre of the spray
pattern
n
Too much material
n
Reduce material supply
n
Material too thick
n
Thin material
Split spray pattern
n
Insufficient mate-
rial
n
Increase material
supply
n
Flat jet air pres-
sure too high
n
Reduce flat jet air pres-
sure
Fluid jet comes out in
spurts or rapid bursts
n
Insufficient mate-
rial supply
n
Increase material
supply
n
Blocked fluid path
n
Clean
n
Loose or dam-
aged fluid nozzle
n
Tighten or replace
n
Worn needle seal
n
Replace needle seal
Fluid leak at the
sealing nut
n
Needle seal
defective
n
Replace needle seal
Fluid nozzle drips
n
Worn or damaged
fluid needle
n
Replace fluid needle
n
Dirty or damaged
fluid nozzle
n
Clean or replace fluid
nozzle
Hand-held spray gun HS-25/2K
ENGLISH
200-0358
GB–47
Summary of Contents for HS-25/2K
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