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CHART 1
No. on Air
Air Cap with Ret. Ring
Cap Order ➞
(Ref. No. 1)
205
SRI-407-205
210
SRI-407-210
*Includes (1) SRI-6 fluid tip seal.
NOTE: The DeVilbiss SRi-628-10 only comes with the 1.0 mm tip and needle installed. The DeVilbiss SRi-628-12 comes with
the 1.2 mm tip and needle installed. The DeVilbiss SRi-G210B-08 only comes with the 0.8 mm tip and needle installed. The
DeVilbiss SRi-G210B-10 only comes with the 1.0 mm tip and needle installed.
PREVENTIVE MAINTENANCE
To clean air cap and fluid tip, brush exterior
with a stiff bristle brush. If necessary to clean
cap holes, use a broom straw or toothpick
if possible. If a wire or hard instrument is
used, extreme care must be used to prevent
scratching or burring of the holes which will
cause a distorted spray pattern.
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 1. It is
recommended that the fluid tip seal
(5) is replaced whenever the fluid
tip is removed. Also, replace the
needle packing at this time. Lightly
lubricate the threads of the fluid
tip before reassembling. Torque
to 80 in-lbs. Do not overtighten
the fluid tip.
To prevent damage to fluid tip
(4) 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 (12) to
relieve spring pressure against
needle collar.
Fluid Needle Used
With Fluid Tip ➞
SRI-37
SRI-3
SRI-3
SRI-37
SRI-3
SRI-3
▲Optional; order separately.
SPRAY GUN LUBRICATION
Daily, apply a drop of SSL-10* spray gun
lube at trigger bearing stud (19) and the
stem of air valve (15) where it enters air
valve assembly. The shank of fluid needle
(10) where it enters packing nut (9) should
also be oiled. Fluid needle packing (9) should
be lubricated periodically. Make sure gun
threads and retaining ring (2) threads are
clean and free of foreign matter. Before
assembling retaining ring to gun, clean the
threads thoroughly, then add two drops of
SSL-10 spray gun lube to threads. Fluid
needle spring (11) and air valve spring (14)
should be coated with a very light grease,
making sure that any excess grease will not
clog the air passages.
*Not for air tools or high RPM equipment.
For best results, lubricate the points indi-
cated, daily.
A. Trigger Points
B. Packing
C. Adjusting Knobs
D. Gun Threads
E. Air Valve Cartridge
A
A
D
Fluid Tip No.
in.
SRI-2-08-K*▲
.031
SRI-2-10-K*
.039
SRI-2-12-K*
.046
SRI-2-08-K*
.031
SRI-2-10-K*
.039
SRI-2-12-K*▲
.046
PARTS REPLACEMENT
SRI-411 Packing Replacement Instructions
Gun Body
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.
C
11. After each adjustment, pull needle
open and observe needle closure.
12. In 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 or
less to the point where needle snaps
E
shut. Packing nut must remain tight
enough to prevent loosening by
B
hand.
14. Pull needle several times to verify
needle snaps shut and check packing
nut for looseness.
SB-2-525-C
Page 3
Tip Size I.D.
mm.
0.8
1.0
1.2
0.8
1.0
1.2
Needle
Packing Packing
Nut
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