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should not be used to "blow-off" surfaces as this will also dis-
pense curative. If the air is used to "blow-off" surfaces, the air
adjusting valve assembly (39) serving the curative supply, must
be closed.
Since this procedure changes the setting of the air adjusting
valve, it is suggested that the position of the air adjusting valve
(39) be marked. This will permit returning quickly to the correct
setting for flow of curative previously established.
VaryinG the spray pattern
The fan spray pattern can be changed quickly and easily by
adjusting the side port control (2). Turning the knurled knob (2)
clockwise until it is closed will give a round spray pattern; turn-
ing it counter-clockwise will change the pattern from round to
elliptical, forming a fan-shaped spray. The width of the fan
spray can be varied within the limits of the particular air nozzle
being used. The long dimension (length) of the fan spray can be
oriented either horizontally or vertically, or any other position in
360º, by turning the air nozzle (12) to the desired position and
tightening the retainer ring.
VaryinG the spray rate
If a pressure cup is used, the amount of resin flow can be varied
by regulating the air pressure on the cup. The amount of resin
flow can also be varied by adjusting the control screw (17).
Turning this screw clockwise reduces the flow, counter-clock-
wise increases it.
faulty resin spray pattern
A faulty spray is caused by an obstruction in the flow path,
caused usually by dried material around the resin nozzle tip
(14), or in the air nozzle (12), resulting from incomplete clean-
ing. To remove such obstructions, soak these parts in a solvent
that will soften the dried material, then wipe them clean with a
brush or cloth. do not use metal instruments to clean the air
nozzle or resin nozzle. These parts are precision machined and
any damage to them will cause a faulty spray. If either the air or
resin nozzle is damaged, the part must be replaced before a per-
fect spray can be obtained.
fluid paCKinG replaCement
remove resin control screw (17), spring (16) and needle (15).
remove resin packing nuts (5) and remove old packing (4) with
a small stiff wire. Insert new packing (oiled lightly) and reas-
semble in reverse order. To "set" packing, insert needle (15),
tighten packing nut (5) until needle movement is sluggish (held
too tightly for the spring to move). Then loosen nut 1/2 to 3/6
turn.
CorreCtinG air leaK throuGh the Gun
Air leaking through the gun is caused by the valve stem
assembly (22) not seating properly against the valve body.
remove valve body and valve stem assembly and clean
thoroughly. replace worn or damaged parts and reassemble
in reverse order.
CorreCtinG air leaK around
air ValVe stem
Air leaking around the air valve stem (22) may be caused by
worn packing (25) or damaged air valve stem (22). remove
trigger (6), packing nut (24) and packing (25). clean extended
portion of air valve stem and inspect for damage. If stem is
damaged, remove as described in previous paragraph. replace
stem, insert new packing, and reassemble in reverse order.
6
Binks model 2100 Gw spray Gun
CleaninG the Gun—when used with
"remote" pressure Cup
Shut off the air supply to the pressure cup and release the pres-
sure in the cup. leave the pressure release vent open. Hold a
piece of cloth over the gun nozzle and depress the trigger. The air
will back up through the resin nozzle and force the resin out of
the hose and into the cup. remove resin from cup. clean out cup,
close pressure release vent and pour in enough clean compatible
solvent to clean out the hose and gun thoroughly. Spray this sol-
vent through the fluid hose and gun until it comes through clean.
Separate the gun from the resin hose. Hook up the resin hose to
an air line and blow air through it until it is dry.
flushinG with a siphon Cup
A compatible solvent may be siphoned through gun by
inserting tube from siphon cup in an open container of solvent.
Trigger gun intermittently to flush passageways and internal
parts thoroughly.
preVentatiVe maintenanCe
The 2100 GW gun requires only general preventative mainte-
nance. This includes good housekeeping practices such as:
10. use only a non-metal probe such as a nylon broom straw
General Gun CleaninG
1. Periodic internal inspection and cleaning.
2. lubrication of stud (trigger pivot) (30); exposed portion of
needle (15); and needle valve spring (16).
3. keep exterior of gun clean as possible.
4. replace worn or broken parts. replace seats that continue
to leak after servicing.
5. use wrenches on all hex nuts. do not use pliers or vise
grips.
6. Avoid "mixing" or interchanging nozzle and needle sets.
Paired resin nozzles and needles develop distinctive wear
patterns and should remain mated.
7. Avoid submerging entire gun in solvent as residue may
clog internal air passages.
8. Avoid dropping gun. cracked or broken parts could release
resins or air under pressure.
9. Inspect seals when gun is disassembled for cleaning. Have
a spare set available for replacement if required.
or round wooden toothpick to clear the orifice holes.
1. Submerging the entire gun in solvent will not harm the
metallic parts of the gun. However, the lubricant could be
washed from the leather packings causing them to dry out
and malfunction. In addition, residue from dirty solvent
could clog internal air passages. clean solvent muST be
used, IF IT IS neceSSAry to submerge the gun.
2. remove the air nozzle when flushing solvent through the
resin passages of the gun.
3. Air nozzles may be soaked in clean solvent for washing.
The passageways in the external mix air nozzle are particu-
larly critical. Always final rinse with a clean solvent to
prevent residue from remaining behind in the minute holes.
do not clean the air nozzle with metal instruments.
4. exterior surfaces of gun should be kept clean by wiping
with a solvent-wet cloth.
5. exercise care with the curative container and parts. do not
clean in the same solvent that was used in cleaning the gun
as residual curative could cause gellation of resin fluid
passages of the gun. remove the curative assembly by
separating at swivel nut (35).
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