Graco MAGNUM 309225W - Sprayer Priming Procedures

Priming
10 309225W
Priming
Oil- or Water-based Materials
• When spraying with solvents, ground gun.
Read Grounding and Electric Require-
ments, Maintaining grounding continuity,
page 5.
• To avoid fluid splashing back on your skin
or into your eyes, always aim gun at inside
wall of pail.
1. Turn Spray-Prime/Drain
valve to PRIME.
2. Separate prime tube
(smaller) from suction
tube (larger).
3. Place prime tube in waste pail.
4. If spraying oil-based materials, submerge
suction tube in mineral spirits or compatible
oil-based cleaning solvent.
If spraying water-based materials, sub-
merge suction tube in water.
5. Plug sprayer in to grounded outlet.
6. Point gun into waste pail.
7. Turn power switch ON.
8. Increase pressure, by turn-
ing Pressure Control knob
clockwise, until pump starts.
9. Allow fluid to flow out of
prime tube, into waste pail for 30 to 60 sec-
onds.
10.Turn power switch OFF.
To spray lacquers, purchase Lacquer
Conversion Kit 248202, and follow Prim-
ing procedure for oil-based materials.
To spray water-based materials after
spraying oil-based materials, flush the
system thoroughly with water first. The
water flowing out of prime tube should be
clear and solvent-free before you begin
spraying the water-based material.
To spray oil-based materials after spray-
ing water-based materials, flush the sys-
tem thoroughly with mineral spirits or a
compatible oil-based flushing solvent first.
The solvent flowing out of the prime tube
should not contain any water.
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