SPRAY GUN LUBRICATION
Daily, apply a drop of spray gun lube at
trigger bearing stud (A) and the stem of air
valve (E) where it enters air valve assembly.
The shank of fluid needle where it enters
packing nut (B) should also be oiled. Fluid
needle packing should be lubricated periodi-
cally. Make sure baffle and retaining ring (D)
threads are clean and free of foreign matter.
Before assembling retaining ring to baffle,
clean the threads thoroughly, then add two
drops of spray gun lube to threads. Fluid
needle spring and air valve spring 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.
A. Trigger Points
B. Packing
C. Adjusting Knobs
D. Baffle Threads
E. Air Valve Cartridge
A
B
C
E
D
JGA-4035 PACKING REPLACEMENT
INSTRUCTIONS
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 adjusting
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. Pack-
ing 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.
Packing
(3 pieces)
Packing
Nut
Needle
Gun Body
GTI-33 BAFFLE SEAL REPLACEMENT
1. Remove Fluid Tip.
2. Remove Baffle (6).
3. Remove Seal (5) 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 remove
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 and tighten to
15-20 ft-lbs.
ANGLED SIDE
THICK SIDE
SEAL
BAFFLE
Pry here
if
necessary
CA PROP
65
PROP 65 WARNING
WARNING: This product contains
chemicals known to the State of
California to cause cancer and birth
defects or other reproductive harm.
EN
SI-2-25-33-R1 (6/2018)
3 / 4
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