Spray Adjustments (Pole Spray Applicator); General Adjustments; Spraying Techniques; Material Flow Adjustment - Graco ToughTek S340e Operation, Repair, And Parts

Spray Adjustments Adjustments (Pole
Spray Spray Adjustments
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: See the Pole Spray Applicator manual for
NOTE: NOTE:
model information.

General Adjustments

Adjustments
General General 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: Installing the needle (CD) too far NOTE:
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 Techniques

Spraying Techniques Techniques
3A3437F

Spray Adjustments (Pole Spray Applicator)

(Pole Spray Spray Applicator)
(Pole Spray
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 Flow
Material Material
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: Withdrawing the needle (CD) too far can force air
NOTE: NOTE:
pressure back into the fluid hose, which can slow material
flow.
Air Air Air Flow Flow Valve Flow
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 Nozzle Installing
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.
Applicator)
Applicator)
Flow Adjustment Adjustment
Flow Adjustment
Valve Adjustment Valve Adjustment Adjustment
Nozzle Retaining Nozzle Retaining Cap Retaining Cap Cap
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