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Page 4
SB-2-605-F
CLEANING
Note
For routine cleaning,
it
is not nee¥
essary to remove cup from gun.
Do not remove washer (26) from
gun.
If
washer (26) is removed,
it
must be replaced.
The cup lid is designed to be disposable
but may be cleaned and reused if slightly
contaminated with -overspray. If lid
becomes tight, or does not
fit,
it
is due
to extended soaking in solvent, Let lid air
dry overnight and the lid should return to
its original size and fit.
some solvent to be flushed through gun.
Remove lid and pour out dirty solvent. Add
a small amount of clean solvent and repeat
procedure. Wipe exterior of lid with a clean
doth and clean solvent.
[~~~T!?:~:J
Remove lid and properly dispose of any
excess paint. Pour in a small amount of
clean solvent. The amount will vary with
different coatings and solvents. Reinstall
lid.
Shake cup to wash down the inside
surfaces. Hold lid while shaking to prevent
lid
from coming off. Pull trigger to allow
If a paint filter was used in the bottom of
the cup outlet, it should be removed and
cleaned or replaced at thfs time. Dispose
of used cup lid if contaminated and
replace with new.
Do not soak the lid in solvent for
extended periods of time. Doing
so could cause cup/lid sealing
problems and leakage.
Chart 1 For Model Numbers FLG-615 and FLG-635 Gravity Feed Spray Guns
Spray Gun
Spray
Gun
No. on
Ref. No.2
Ref. No.3
Fluid
Model
Computer
Air
Air Cap
Fluid Tip
Tip
Number
Number
Cap
Part
No.
Computer No.
Part
No.
Computer No.
Size
FLG-615-114
611101
1
FLG-1-1
690000
FLG-102-141<
690003
1.4 (Std.)
FLG-635-316
611103
3
FLG-1-3
690001
FLG-102-16K
690004
1.6 !Std.)
FLG-1 02-14K
690003
1.4 (Std.)
FLG-102-18K
690005
1.8 (Opt.)
FLG-102-22K
690006
2.2 (Opt.)
TROUBLESHOOTING
CONDITION
CAUSE
CORRECTION
Heavy top or
' •
·Horn holes plugged.
Clean . .Ream with non-metaHic point.
bottom pattern
Obstruction on top or bottom of fluid tip.
Clean.
Cap and/or tip seat dirty.
Clean.
Heavy right or left
Left or right side horn holes plugged.
Clean. Ream with non-metallic point.
side pattern
Dirt on left or right side of fluid tip.
Clean.
)(
Remedies for the top-heavy, bottom-heavy, right-heavy, and left-heavy patterns:
1. Determine if the obstruction is on the air cap or the fluid tip. Do this by making a test spray
pattern. Then, rotate the cap one-half turn and spray another pattern. If the defect is inverted,
obstruction is on the air cap. Clean the air cap as previously instructed.
2. If the defect is not inverted, it is on the fluid tip. Check for a fine burr on the edge of the fluid
tip. Remove with #600 wet or dry sand paper.
3. Check for dried paint just inside the opening; remove by washing with solvent.
Heavy center pattern
Fluid flow too high for atomization air.
Balance air pressure and fluid flow. increase spray
t
pattern width with spreader adjustment valve.
Material flow exceeds air cap's capacity.
Thin or lower fluid flow.
Spreader adjustment valve set too low.
Adjust
Atomizing pressure too low.
Increase pressure.
Material too thick.
Thin to proper consistency.
Split spray pattern
Atomization air pressure too high.
Reduce at transformer or gun.
Fluid flow too low.
Increase fluid flow {increases gun handling speed).
Spreader adjusting valve set too high.
Adjust.
Jerky or fluttering spray
*Loose or damaged fluid tip/seat.
Tighten or replace.
~~~~~~~~
Material level too low.
Refill.
Container tipped too far.
Hold more upright.
Obstruction in fluid passage.
Backflush with solvent.
Dry or loose fluid needle packing nut.
lubricate or tighten.
I
Unable to get round spray
Spreader adjustment screw not seating
Clean or replace.
properly.
Air cap retaining ring loose.
Tighten.
Will not spray
No air pressure at gun.
Check air supply and air lines, blow out gun air
passages.
Fluid needle adjusting screw not open enough.
Open fluid needle adjusting screw.
Fluid too heavy for gravity feed.
Thin material and/or change to larger tip size.
*Most common problem.
I
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