5
SPRAY TECHNIQUE
The first requirement for a good resultant fin-
ish is the proper handling of the gun. The gun
should be held perpendicular to the surface
being covered and moved parallel with it. The
stroke should be started before the trigger is
pulled and the trigger should be released
before the stroke is ended. This gives accurate
control of the gun and fluid.
The distance between gun and surface should
be 8 to 10 inches depending on fluid and
atomizing pressure. The fluid deposited
should always be even and wet. Lap each
stroke over the preceding stroke to obtain a
uniform finish. Use 50% overlap.
GENERAL SPRAY
INSTRUCTIONS
To reduce overspray and obtain maximum
efficiency, always spray with the lowest possi-
ble fluid/air pressure that produces an accept-
able spray pattern.
Excessive atomizing air pressures can
increase overspray, reduce transfer efficiency,
and with some materials, result in poor finish
quality from dry spray.
For best results, use 3 to 6 psi fluid pressure.
Higher than 6 psi fluid pressure may be
required for heavy-bodied materials. Low fluid
pressures will produce a narrower than normal
spray pattern. Generally use 30-35 psi air at
gun inlet. Unusually heavy, difficult to atomize
fluids may require up to 50 psi air at gun inlet.
CONTROLLING THE FAN SPRAY
The fan spray is controlled by means of the
spray pattern valve. Turning this control
clockwise until it is closed will give a round
spray; turning it counterclockwise will widen
the spray into a fan shape. The fan spray can
be turned anywhere through 360 ° by posi-
tioning the air nozzle relative to the gun. To
accomplish this, loosen retaining ring, posi-
tion nozzle, then tighten retaining ring.
AIR NOZZLE, FLUID NOZZLE,
FLUID NEEDLE
1. All nozzles and needles are precision
made. They should be handled with care.
2. Do not make any alterations in the gun.
To do so could cause finishing difficulties.
3. To clean nozzles, soak them in solvent to
dissolve any dried material, then blow
them clean with air.
4. Do not probe any of the holes in the
nozzles with metal instruments.
If probing is necessary, use only a
tool that is softer than brass.
TROUBLESHOOTING
Faulty Spray
A faulty spray pattern is often caused by
improper cleaning resulting in dried materials
around the fluid nozzle tip or in the air nozzle.
Soak these parts in thinners to soften the dried
material and remove with a brush or cloth.
If either the air nozzle or fluid nozzle are
damaged, these parts must be replaced before
perfect spray can be obtained.
Intermittent Spray
If the spray flutters, it is caused by one of the
following faults:
1. Insufficient fluids available. Check supply
and replenish if necessary.
2. Fluid tip not tightened sufficiently.
3. Packing loose or worn.
NOTE
To reduce overspray and obtain
maximum efficiency always spray
with the lowest possible atomizing
air pressure.
CAUTION
Never use metal instruments to clean
the air or fluid nozzles. These parts
are carefully machined and any dam-
age to them will cause faulty spray.
!
OPERATING THE SV100
SPRAY GUN
BINKS SV100 CONVENTIONAL SUCTION FEED SPRAY GUN
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