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Page 6 88·2·230-E
OPERATION~
DESCRIPTION AND
USAGE~
For Paint Company SetAJp Recommendations,
refer to the enclosed paint recommendation chart for inlet pressure
&
tip size guidelines.
Upper Trigger
allows the gun to be
positioned to spray
horizontal surfaces
Fan Air Control Knob
changes the spray pattern
size from "full round" to
"full tan"
~--1.-U
\
Fluid Control Knob
controls the amount
of paint flow
-----
Inlet Air Pressure
Gaugeii
Air Adjusting Valve
and Gauge*
controls the air inlet
pressure to gun
WhlriwintP1,1
Disposable
Air Filtar*
OPERATIOIII
!DeVIlbiss Whlrlwinc!l
11
Disposable Air FUterr'
This high performance disposal air filter is
used to
remove
water and oil which has
passed through a waH mounted filter. (Sepa·
rator type wall
filters
do not remove water
vapor
which can condense in the
hose to
the gun and cause
paint
defects.) It also
filters dirt, rust and other debris. Replace
filter everv
10
days.
Replace more
often if
a wall·mounted filter
is
not used.
WARIN!N"G
Risk of bursting.
Risk of
pefo
sona! inJury
Ill
Do
no~
exceed 125 PS!G
(8.5 bov)
til
Do not us® b®low 50
°
F
(10°C) orabov•110° F
(43° Ci
~ DlscB~n~
filtsc·
SmmsdiSJtely If
damagerdl.
"' Customer
supplied
parts. See page 35
removes water,
dirt
and oil
DeVilbiss Air Adjusting Valve and Gauge*
This controls
the air intet pressure to the
gun and directly
affects paint
f!uw and
atomization. The most common
cause
of
poor gun performance is improper
inlet
pressure.
Always
~djus'l:
the inlet pressure
with the gun fuliy triggered.
Note
Local
air quality regulations
may
limit
air
cap pressure to 1 0 PSJG
\0,7 bar). (Use
optional
air cap
test
kH,
see Pg. 35, to confirm cap
pressure.)
When the
gun is
not
triggered,
the
gauge
will
read line pressure. If there are many
sources of pressure drop (small diameter
and long air hoses, restrictive quick con*
nects, etc.)
there
may be a large difference
in pressure between
triggered mode
and
non-triggered
mode. For
optimum
gun per·
formance,
always try to eliminate sources
of extreme pressure drop.
#97 Air Cap - Inlet pressure guidelines
Pr'lmer
Base Coat
Ciear Coat
Single Stage
35 to 45 PSIG (2.4 to 3. I bar)
30to
40
PSIG
(2
to 2.
7 bar)
40
to
50
PSIG
12.7
to
3.4 bar)
30
to
50
PSIG
12
to 3.4 bar)
#98 Air Cap - inlet pressure gu!delines
Base
&Clear
14to18PSlG(0.9to1.3bar)
Note
For
the
highest
paint
transfer
efficiency and least overspray
(spray
mis,t), always
spray at
the
lowest
inlet pressure that
gives
the
desired finish quality.
Fluid Cuntrol Knob
This knob,
as
well as the gun inlet air
pressure, controls the amount (flow rate)
of paint sprayed.
1.4
1.6
0.8
1.8
Paint flow can be
adjusted equal
to tip sizes
in the range from 0.8 mm (0.032") to 1.8
mm (0.070")
diameters.
Equivalent metric
tip sized are
marked
on
the bottom
of the
knob. Test spray on a scrap surface while
turning
the
knob to obtain optimum flow.
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