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Troubleshooting
313869B 23
Gun spitting. Air getting into paint stream. Check if fluid source is empty
and fill.
Tighten fluid nozzle (4).
Check fluid nozzle o-ring (3) for
damage.
Check fluid nozzle (4) for dam-
age.
Will not spray. Fluid control valve (11) turned
too far clockwise.
Adjust fluid control valve (11)
counterclockwise.
Fluid source empty. Refill.
Excessive air blowing back. Loose fluid nozzle (4). Tighten fluid nozzle (4).
Damaged fluid nozzle seal (3). Replace seal (3).
Gun fluid pressure is too high
with gun triggered (cannot
achieve desired flow rate).
Using needle/nozzle kit with
too small orifice.
Use needle/nozzle kit with
larger orifice.
Using a low fluid pressure set-
ting, the fluid flow is too high,
making it necessary to restrict
needle travel to reduce fluid
flow.
Using needle/nozzle kit with
too large orifice.
Use needle/nozzle kit with
smaller orifice.
Fluid system will not operate at
low enough pressure [below
10 psi (70 kPa, 0.7 bar)].
There is no fluid regulator, or
air regulator is not sensitive
enough at low pressure.
Add low pressure fluid regula-
tor, or add more sensitive low
pressure air regulator.
Fluid flow is fluttering while
spraying.
Fluid source empty. Refill.
Problem Cause Solution