Spray Adjustments (Pole Spray Applicator)
Spray
Spray
Spray Adjustments
Adjustments
Adjustments (Pole
(Pole
(Pole Spray
Spray
Spray Applicator)
Applicator)
Applicator)
Key:
Key:
Key:
CA
Air Assist Air Line
CB
Air Assist Shutoff Ball Valve
CC
Rubber Tip Retainer
CD
Air Needle (adjustable position)
CE
Air Needle Retaining Screw
CF
Fluid Housing
CG
Tip (Nozzle)
NOTE:
NOTE:
NOTE: See the Pole Spray Applicator manual for
model information.
General
General
General Adjustments
Adjustments
Adjustments
The spray pattern can be adjusted by changing:
• Tip (CG) size
• Fluid and/or air flow
• Air Needle (CD) position
The standard applicator adjustment is to adjust the air
needle (CD) slightly behind the fluid tip. Fully open the
air ball valve (CB) for the minimum air flow necessary for
a good pattern. NOTE:
NOTE:
NOTE: Installing the needle (CD) too far
forward can reduce the orifice size, stopping material flow.
Air bleeds from the applicator nozzle whenever the
applicator air ball valve (CB) is open. Close the valve to
stop the air if desired. Otherwise, the air valve can stay
open during priming.
Adjusting the spray pattern requires testing to balance the
fluid flow and the air to the applicator, and requires the
correct tip size.
Spraying
Spraying
Spraying Techniques
Techniques
Techniques
1.
Test the spray pattern on cardboard. Hold the
applicator 18 – 30 in. (45 – 76 cm) away from
the surface. Use this spraying distance for most
applications.
2.
Adjust fluid flow until material flow is adequate.
3.
Adjust the applicator air ball valve (CB) to achieve a
uniform round spray pattern.
4.
Consider the size of aggregate in the material and the
coarseness of the spray pattern. Larger nozzles allow
heavier patterns.
5.
Overlap each stroke 50%. A circular overlapping
pattern may give the best results.
When spraying small confined areas use the air ball valve
(CB) and air needle (CD) to make fine adjustments without
adjusting the pump.
Material
Material
Material Flow
Flow
Flow Adjustment
Adjustment
Adjustment
For a lighter spray pattern, adjust the air needle (CD)
closer to the fluid nozzle and/or reduce the fluid flow. For
a heavier spray pattern, adjust the air needle (CD) farther
back from the fluid tip and/or increase the fluid flow.
NOTE:
NOTE:
NOTE: Withdrawing the needle (CD) too far can force air
pressure back into the fluid hose, which can slow material
flow.
Air
Air
Air Flow
Flow
Flow Valve
Valve
Valve Adjustment
Adjustment
Adjustment
To decrease air flow, turn the air ball valve (CB)
clockwise. To increase air flow, turn the air ball valve (CB)
counterclockwise.
Check the material and thin it as needed to maintain the
proper consistency. The material may thicken as it sits and
could slow down application or affect the spray pattern.
Flush and dry the applicator thoroughly at the end of each
use. Blow air through the needle after the applicator is
clean to ensure that no material is blocking air flow.
Installing
Installing
Installing Nozzle
Nozzle
Nozzle Retaining
Retaining
Retaining Cap
Cap
Cap
1.
Place the nozzle retaining cap (CC) over the top lip
of the applicator housing.
2.
Turn the rubber retainer back and forth to make sure it
is fully seated.
3.
Turn the rubber retainer back and forth to be sure it
is fully seated.
NOTE:
NOTE:
NOTE: The rubber gasket in the cam and groove inlet fitting
and the rubber nozzle retainer should be hand-cleaned and
dried after each use.
3A3437F
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