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SPRAY GUN LUBRICATION
Daily, apply a drop of SSL-10* spray gun
lube at trigger bearing stud (28) and the
stem of air valve (20) where it enters air valve
assembly. The shank of fluid needle (11)
where it enters packing nut (9) should also
be oiled. Fluid needle packing (8) should be
lubricated periodically. Make sure baffle (6)
and retaining ring (3) threads are clean and
free of foreign matter. Before assembling
retaining ring to baffle, clean the threads
thoroughly, then add two drops of SSL-10
spray gun lube to threads. Fluid needle
spring (14) and air valve spring (19) should
be coated with a very light grease, making
sure that any excess grease will not clog the
air passages. For best results, lubricate the
points indicated, daily.
* Not for air tools or high RPM equipment.
A.
Trigger Points
B.
Packing
C.
Adjusting Knobs
D.
Baffle Threads
E.
Air Valve Cartridge
D
B
E
PARTS REPLACEMENT
FLUID INLET GASKET (32) REPLACEMENT
INSTUCTIONS
1.
Remove fluid inlet adapter (34) with
appropriate wrench.
2.
Clean Loctite from gun body inlet
threads and seal area.
3.
Place gasket (32) squarely onto the fluid
inlet adapter and push it down until it
is flat against the shoulder.
4.
Use medium strength thread sealant
(i.e. Devcon 2242 blue, or equal) on
threads before installing fluid inlet
adapter.
5.
Torque fluid inlet adapter to 20-25 ft.
lbs. and tighten locknut.
PARTS REPLACEMENT
Figure 1 Air Cap
Chart 1
Air Caps, Air Flows and Applications
No. on
Air Cap
Air
Cap
Order
(Ref. No. 4)
410
AV-440-410
414
AV-440-414
Chart 2
Fluid Tips and Needles
A
Tip Size
In.
mm
0.039
1.0
C
0.047
1.2
0.055
1.4
0.063
1.6
0.070
1.8
NR = Not Recommended
GTI-33 Baffle Seal Replacement
1. Remove Fluid Tip (5).
2. Remove Baffle (6).
3. Remove Seal (7) from baffle.
The seal is designed to be a tight
fit on the baffle. The seal should
be able to be removed using your
fingers. If you are unable to re-
move the seal using your fingers,
insert a small screwdriver between
the outer lip and the back of the
baffle and pry the seal off.
Pry here if
necessary
Air Cap No.
XXX
DeVilbiss
Type of
Fluid
Air Flow (CFM)
With
Delivery
Ring
S=
Suction
@30
@40
@50
P=
psi
psi
psi
Pressure
S, P
9
11
13
14
16.5 19
P
Suction Feed
Pressure Feed
Fluid
Fluid
Fluid
Tip
Needle
Needle
(#5)
(#11)
(#11)
NR
AV-213-10
GTI-449-12
NR
AV-213-12
GTI-449-12
AV-213-14
GTI-413
GTI-449-12
NR
AV-213-16
GTI-413
NR
AV-213-18
GTI-413
NOTE
ANGLED SIDE
SEAL
THICK SIDE
BAFFLE
SB-2-475-H Page 3
4. Assemble seal to baffle with angled
side up as shown in diagram. NOTE:
The seal should be a tight fit on the
baffle. If it is a loose fit on the baffle,
assure that it is assembled with the
angled side up.
5. Install baffle on gun.
6. Install fluid tip (5) and tighten to
15-20 ft-lbs.
JGA-4035 Packing Replacement Instruc-
tions
Gun Body
Packing
(3 pieces)
@60
psi
1. Remove adjusting knob and needle
spring from gun.
2. Partially withdraw needle from gun
body.
3. Loosen packing nut and remove.
4. Remove old packing.
5. Assemble packing nut to needle.
6. Assemble packing in order shown to
needle.
7. Insert needle all the way into gun
body seating in tip.
8. Install needle spring and adjusting
knob.
9. Thread packing nut into gun body.
10. Tighten packing nut in equal incre-
ments - no more than
1/6 turn at a time.
11. After each adjustment, pull needle
open and observe needle closure.
12. If needle snaps shut, continue ad-
justing nut until there is evidence of
needle bind or slow closing.
13. Back off packing nut 1/12 turn to
the point where needle snaps shut.
Packing nut must remain tight
enough to prevent loosening by
hand.
14. Pull needle several times to verify
needle snaps shut and check pack-
ing nut for looseness.
Needle
Packing
Nut
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