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4. AIR SUPPLY
4.1.
For recommended hook-up, see diagram (fig.1). Ensure the air valve is in the "off" position before connecting to the air supply.
4.2.
You will require an air supply capable of providing a pressure 29 to 32psi and an air volume of 10.1cfm to operate the gun.
WARNING! Ensure the air supply is clean and is regulated to a maximum of 32psi. Too high an air pressure and unclean
ˆ
air will shorten the life of the gun due to excessive wear and may be dangerous, causing damage and/or personal injury.
4.3.
Drain the air supply tank and pressure regulator daily. Water in the air line will damage the gun and contaminate the paint.
4.4.
Clean the compressor air inlet filter weekly.
4.5.
Line pressure should be increased to compensate for unusually long air hoses (over 8 metres). The minimum hose diameter
should be 10mm (3/8") I.D. and fittings must have the same inside dimensions.
4.6.
Keep hose away from heat, oil and sharp edges. Check hoses for wear, and make certain that all connections are secure.
4.7.
Couplings
Vibration may cause failure if a quick change coupling is connected directly to the spray gun. To overcome this, connect a leader
hose to the spray gun (Sealey ref: AH2R or AH2R/38). A quick change coupling may then be used to connect the leader hose to the
air line recoil hose. See fig.1 & fig.2.
fig.1
5. OPERATION
5.1.
For best results, the gun should be held perpendicular to the surface being sprayed and moved parallel to it. Start the stroke before
squeezing the trigger and release the trigger before finishing the stroke. This will enable you to accurately control the gun and material (fig.3).
5.2.
Spray from a distance of about 150mm to 250mm depending on the material and the atomizing pressure. The material deposited
should always be even and wet. Each stroke must overlap the preceding stroke to obtain a uniform finish. To reduce over-spray and
obtain maximum efficiency, spray with the lowest possible atomising air pressure.
5.3.
Controlling the fan spray and the fluid.
a) Use the needle (paint) adjustment knob (fig.4.2) to increase or decrease the amount of paint flow.
b) The atomizing air flow is controlled by knob (4.1). The volume of air input is controlled by knob (4.3).
c) As width of spray is increased more material must pass through the gun to obtain the same coverage on the increased area.
d) Turn the air nozzle (4.4) to achieve a horizontal or vertical fan spray. Lock the nozzle with retaining ring (4.5).
5.4.
The spray pattern of the gun is variable from round to flat with all patterns in between. In normal operation, the wings on the nozzle
are horizontal. See fig.5 This provides a vertical fan-shaped pattern which gives maximum uniform and even coverage when
moving the gun back and forth, parallel to the work surface.
fig.3
© Jack Sealey Limited
Original Language Version
fig.4
HP01 Issue No:1 04/11/15
fig.2
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