EN
77-3026-R2.5 (9/2016)
9 / 16
INSTALLATION INSTRUCTIONS
For maximum transfer efficiency, do not use more pressure
than is necessary to atomize the material being applied.
NOTE
When using HVLP do not exceed inlet pressures
listed on page 7.
1. Connect the gun to a clean, moisture and oil free air
supply using a conductive hose of at least 5/16 in I.D.
NOTE
Depending on hose length, larger I.D. hose may be required. Install
an air gauge at the gun handle. See page 7 for operating pressures.
Do not use more pressure than is necessary to atomize the material
being applied. Excess pressure will create additional overspray and
reduce transfer efficiency.
NOTE
If quick connect couplings are required, use only high flow quick
connects approved for HVLP use. Other types will not flow
enough air for correct gun operation.
NOTE
If an air adjusting valve is used at the gun inlet, use HAV-501
adjusting valve.
2.
SIPHON MODELS ONLY.
Attach the cup lid assembly to
the fluid inlet connector. Position cup yoke at right angles
to the gun.
3.
PRESSURE FEED MODELS.
Connect the fluid supply
hose to fluid inlet connector.
OPERATION
SIPHON MODELS
1. Mix coating material to manufacturer’s instructions and
strain material.
2. Fill the cup to no more than 3/4 inch from the top of the
cup. DO NOT OVERFILL.
3. Attach to cup lid.
ALL MODELS
4. Turn fluid adjusting knob (24) clockwise to prevent fluid
needle movement.
5. Turn sideport control (9) counter clockwise to fully open.
6. Adjust inlet air pressure if required.
7. Turn fluid adjusting knob counter clockwise until first
thread shows.
8. Test spray. If the finish is too dry, reduce airflow by
reducing air inlet pressure.
9. If finish is too wet, reduce fluid flow by turning fluid
adjusting knob (24) clockwise. If atomization is too
coarse, increase inlet air pressure. If too fine, reduce inlet
pressure.
10. The pattern size can be reduced by turning sideport
control (9) clockwise.
11. Hold gun perpendicular to surface being sprayed. Arcing
or tilting may result in uneven coating.
12. The recommended spray distance is 8 inches.
13. Spray edges first. Overlap each stroke a minimum of
75%. Move gun at a constant speed.
14. Always turn off air supply and relieve pressure when gun
is not in use.
PREVENTIVE MAINTENANCE
AND CLEANING
To clean air cap and fluid nozzle, brush exterior with a stiff
bristle brush. If necessary to clean cap holes, use a broom
straw or toothpick if possible. If a wire or hard instrument is
used, extreme care must be used to prevent scratching or
burring of the holes which will cause a distorted spray pattern.
To clean fluid passages, remove excess material from gun,
then flush with gun wash solution. Wipe the gun exterior with
a dampened cloth. Never completely immerse in any solvent
or cleaning solutions as this is detrimental to the lubricants
and life of the spray gun.
NOTE
When replacing the fluid nozzle (7) or fluid needle (22), replace
both at the same time. Using worn parts can cause fluid leakage.
See page 4. Also, replace the needle packing at this time. Torque
the fluid nozzle to 230–240 inch-lbs. Do not over tighten.
!
CAUTION
To prevent damage to fluid nozzle (7) or fluid needle (22), be sure
to either 1) pull the trigger and hold while tightening or loosening
the fluid nozzle, or 2) remove fluid adjusting knob (24) to relieve
spring pressure against needle collar.
SIPHON CUP.
Empty excess material and clean the cup.
Make sure the vent hole in the lid is clear.
NOTE
Before using the spray gun, flush it with solvent to ensure that
the fluid passages are clean.
