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SB-2-779-A
FLG4 GRAVITY FEED SPRAY GUN AND DeKUPS
CLEANING
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 at source, 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.
PREVENTIVE MAINTENANCE
Spray Gun Lubrication
Daily, apply a drop of SSL-10 spray gun lube
at trigger bearing stud (10) and the stem
of the air valve (8). The shank of the fluid
needle (7) where it enters the packing nut
(7) should also be oiled. The fluid needle
packing (7) should be kept soft and pliable by
periodic lubrication. Make sure the baffle (4)
and retaining ring (1) threads are clean and
Chart 1 – FLG4 HVLP and Conventional Models, Gravity Feed
Spray Gun
Model Number
FLG-CNG-115
FLG-HVG-315
Chart 2 – Fluid Tips
Fluid Tip & Seal
Fluid Tip
(Ref. No. 2)
Size
Part No.
(in.)
FLG-332-13K
0.051
FLG-332-15K
0.059
FLG-332-22K
0.086
Chart 3 – HVLP Air Flows (#3 Cap)
Inlet Pressure
Air Flow
(PSI)
(SCFM)
15
10
19
11.5
23
13.5
DISPOSABLE CUP SYSTEM
®
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. The fluid needle
spring (6) and air valve spring (8) should
be coated with a very light grease, making
sure that any excess grease will not clog
the air passages.
PARTS REPLACEMENT
When replacing the fluid tip or
fluid needle, replace both at the
same time. Using worn parts can
cause fluid leakage. Also, replace
the needle packing and fluid tip
seal at this time. Lightly lubricate
the threads of the fluid tip before
reassembling. Torque to 15-20 ft-
lbs. Do not overtighten the fluid tip.
The fluid tip part number and tip size are
stamped around the outside of the fluid tip.
Application Type
Gravity – Conventional
Gravity – HVLP
Fluid Tip
Size
Applications
(mm)
1.3
Stains, lacquers, basecoats, clears.
1.5
General purpose, light to medium viscosity material.
2.2
Medium viscosity materials.
Cap Presure
(PSI)
6
8
10
Note
Number
Air Cap Kit
on
(Ref. No. 1)
Air Cap
1
FLG4-1-1-k
3
FLG4-1-3-K
See Chart 1 for selecting the proper size
fluid tip for the material you are spraying.
To prevent damage to the fluid
tip (2) or fluid needle (7), be sure
to either:
1. Pull the trigger and hold while
tightening or loosening the
fluid tip; or
2. Remove fluid needle adjusting
screw (6) to relieve spring pres-
sure against needle collar.
Fluid Tip
Fluid Tip Size
(Ref. No. 2)
Supplied With Gun
FLG-332-15K
1.5 mm
FLG-332-15K
1.5 mm
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