Spray Adjustments (Htxtm Applicator) - Graco ToughTek S340e Operation, Repair, And Parts

Spray Adjustments (HTXTM Applicator)

Spray Adjustments Adjustments (HTX
Spray Spray Adjustments
Key:
Key: Key:
DA Air Assist Air Line
DB Fluid and Air Manifold
DC Tip (Nozzle)
DD Tip Retainer
DE Air Assist Needle Valve
DF Air Assist Shut Off Ball Valve
DG Check Valve
NOTE: NOTE: See the HTX Applicator manual for model NOTE:
information.
When When Spraying When Spraying Spraying
1. Set material flow. See applicator instruction
manual for additional information.
2. Spray test pattern.
3. Turn the air knob ON and adjust, and/or select
another air nozzle for desired pattern.
NOTE: Air continues to flow when the handle is in the
NOTE: NOTE:
OFF position to keep material out of air passages.
General Adjustments Adjustments
General General Adjustments
The spray pattern can be adjusted by changing:
• Tip (DC) size
• Fluid flow
• Air flow, use needle valve (DE)
The standard applicator adjustment is to fully open
the air assist valve (DF) while adjusting the needle
valve (DE) for the minimum air flow necessary for
a good pattern.
20
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(HTX T T T M M M Applicator)
(HTX Applicator) Applicator)
Air bleeds from the applicator nozzle whenever the air
assist valve (DF) is open. Close the valve to stop the
air flow if desired. Otherwise, the air valve can stay
open during priming. Air must be on prior to fluid flow.
Adjusting the spray pattern requires testing to
balance the fluid flow and the air to the applicator,
and requires the correct tip size.
Air Flow Air Air
To decrease air flow, turn the valve knob (DE)
clockwise. To increase air flow, turn the valve knob
(DE) counterclockwise.
Check material and thin 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.
Spray Spray Techniques Spray
1. Test the spray pattern on cardboard. Hold the
2. Adjust fluid flow until material flow is adequate.
3. Adjust the applicator air assist needle valve to
4. Consider the size of the aggregate in the material
5. Overlap each stroke 50%. A circular overlapping
When spraying small confined areas use the valve
and knob to make fine adjustments without adjusting
the pump.
Cleanup Cleanup Cleanup
Thoroughly flush applicator after each work session
before fluid begins to cure in the applicator. Remove
the check valve and clean all residue from air
passages. Store in a dry location. Do not leave the
applicator or any parts in water or cleaning solvents.
NOTE: The check valve will be damaged if any object
NOTE: NOTE:
is inserted into the valve.
Flow Valve Flow Valve Adjustment Valve Adjustment Adjustment
Techniques Techniques
applicator 6–18 in. (15–46 cm) from the surface.
Use this spraying distance for most applications.
achieve a uniform round spray pattern.
and the coarseness of the spray pattern. Larger
nozzles allow heavier patterns.
pattern may give the best results, and is obtained
by grasping the flex-head and swinging the head
around as the hose flexes.
3A3437F