Table of Contents
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8 Faults
Personnel:
n
Qualified personnel
Fault table
Spray pattern
GB–30
Operating instructions
Fault
Normal flat jet spray pattern
Spray pattern too
heavy towards the top
and towards the
bottom
Spray pattern concen-
trated on the left or
right side
Heavy application in
the centre of the spray
pattern
Split spray pattern
Spray pattern too thin
Fluid jet comes out in
spurts or flittering
Cause
n
Dirty air nozzle
n
Dirty fluid nozzle
n
Dirty air nozzle
n
Dirty fluid nozzle
Too much fluid
n
Fluid too thick
n
Too little fluid
n
Flat jet air pres-
n
sure too high
Union nut loose
n
Insufficient fluid
n
supply
n
Blocked fluid path
Loose or dam-
n
aged fluid nozzle
n
Worn needle seal
mail@krautzberger.com, www.krautzberger.com
T-Dok-040-GB-Rev.1
Remedy
n
Clean nozzles
Ä Chapter 7.2
(
'Cleaning spray
guns' on page 24)
n
Clean nozzles
Ä Chapter 7.2
(
'Cleaning spray
guns' on page 24)
Throttle fluid
n
supply
Thin fluid
n
Increase fluid
n
supply
Reduce flat jet air
n
pressure
Tighten union nut
n
Increase fluid
n
supply
n
Clean
Tighten or replace
n
Ä Chapter 7.3
(
'Changing the air
and fluid nozzles'
on page 25)
n
Change needle
seal
Ä Chapter 7.5
(
'Changing needle
packing'
on page 28)
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