Specifications

SB-2-168-K Page 3
GTI-33 Baffle Seal Replacement
1. Remove Fluid Tip (5).
2. Remove Baffle (6).
3. Remove Seal (7) from baffle.
NOTE
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.
4. Assemble seal to baffle with angled side
up as shown above. 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
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 increments
– 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 adjust-
ing 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 packing
nut for looseness.
To clean fluid passages, remove excess
material from cup, then flush with a suitable
solvent. Wipe gun exterior with a solvent
dampened cloth. Never completely immerse
in solvent as this is detrimental to the lubri-
cants 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 1. Also,
replace the needle packing at this
time. Lightly lubricate the threads
of the fluid tip before reassembling.
Torque to 15-20 ft. lbs. Do not over-
tighten the fluid tip.
To prevent damage to fluid tip (5)
or fluid needle (11), be sure to
either 1) pull the trigger and hold
while tightening or loosening the
fluid tip, or 2) remove fluid needle
adjusting screw (17) to relieve
spring pressure against needle
collar.
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, lubri-
cate 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
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.
PARTS REPLACEMENT
Figure 1 Air Cap
Air Cap No.
HVLP: 30 PSI
MAX. INLET
No. 2000
A
B
C
E
D
Chart 1
Packing
(3 pieces)
Packing
Nut
Needle
Gun Body
Air cap covered by U.S.A. Patent
No. 6,293,476.
Fluid Tip Size I.D.
Tip No.
In. mm
GTI-213-12 0.047 1.2
GTI-213-13 0.051 1.3
GTI-213-14 0.055 1.4
GTI-213-15 0.059 1.5
GTI-213-16 0.063 1.6
GTI-213-18 0.070 1.8
ANGLED SIDE
THICK SIDE
SEAL
BAFFLE
Pry here if
necessary