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To clean fluid passages, remove excess
material from cup, then flush with a suit-
able solvent. Wipe gun exterior with a
solvent dampened cloth. Never completely
immerse in solvent as this is detrimental to
the lubricants and packings.
NOTE
When replacing the fluid tip or
fluid needle, replace both at the
same time. Using worn parts can
cause fluid leakage. See Chart 2.
Also, replace the needle packing
at this time. Lightly lubricate the
threads of the fluid tip before
reassembling. Torque to 12-15 ft.
lbs. Do not overtighten the fluid
tip.
To prevent damage to fluid tip (5)
or fluid needle (10), be sure to
either 1) pull the trigger and hold
while tightening or loosening the
fluid tip, or 2) remove fluid needle
adjusting screw (16) to relieve
spring pressure against needle
collar.
SPRAY GUN LUBRICATION
Daily, apply a drop of SSL-10* spray gun
lube at trigger bearing stud (27) and the
stem of air valve (19) where it enters air
valve assembly. The shank of fluid needle
(10) where it enters packing nut (8) should
also be oiled.
Fluid needle packing (7)
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 (13) and air valve spring (18)
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
A
D
PARTS REPLACEMENT
Figure 1 Air Cap
No. XXX
HVLP: 30 PSI
MAX. INLET
Maximum air pressure required to
assure compliance of 10 PSI Max.
Cap Pressure - this reading must be
taken at the spray gun handle inlet
fitting.
JGA-4035 Packing Replacement Instruc-
tions
Gun Body
(3 pieces)
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.
1 0 . Tighten packing nut in equal
increments - no more than
1/6 turn at a time.
1 1 . After each adjustment, pull needle
open and observe needle closure.
C
1 2 . In needle snaps shut, continue
adjusting nut until there is evidence
of needle bind or slow closing.
1 3 . Back off packing nut 1/12 turn to
the point where needle snaps shut.
Packing nut must remain tight
E
enough to prevent loosening by
hand.
B
1 4 . Pull needle several times to verify
needle snaps shut and check packing
nut for looseness.
Chart 1
Air Cap No.
Chart 2
Needle
Packing
Packing
Nut
SB-2-168-E
No. on Air Cap
Air Cap With Ring
Order
(Ref. No. 4)
100
GTI-407-100
2000
GTI-407-2000
Fluid
Tip Size I.D.
Tip No.
In.
mm
GTI-213-12
0 . 0 4 7
1 . 2
GTI-213-13
0 . 0 5 1
1 . 3
GTI-213-14
0 . 0 5 5
1 . 4
GTI-213-15
0 . 0 5 9
1 . 5
GTI-213-16
0 . 0 6 3
1 . 6
GTI-213-18
0 . 0 7 0
1 . 8
Page 3
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