Empty and Flush Entire System (new system or end of job)
3A0420V 31
Empty and Flush Entire System
(new system or end of job)
NOTE:
• If the system includes heaters and heated hose,
turn them off and allow to cool before flushing.
Do not turn on the heaters until the fluid lines
are clear of solvent.
• Cover fluid containers and use the lowest possi-
ble pressure when flushing to avoid splashing.
• Before color change or shutdown for storage,
circulate the solvent at a higher flow rate and for
a longer time. Change the solvent when it gets
dirty.
• To only flush the fluid manifold, see Flush Mix
Manifold, Hose, and Spray Gun, page 30.
• If the machine is inoperable, use drain plugs on
the pump inlet fittings.
Guidelines
Flush new systems if the coating materials will be con-
taminated by mineral oil.
Flushing will help prevent materials from settling or gell-
ing in the pumps, lines, and valves. Flush the system
when any of the following situations occur.
• anytime the system will not be used for more
than one week (depending on materials used)
• if the materials used have fillers that will settle
• if using materials that are moisture sensitive
• before servicing
• if the machine is going into storage, replace the
flush solvent with light oil. Never leave the
equipment empty of any fluid.
Procedure
1. Follow Prime Empty System, page 25 and Flush
Mix Manifold, Hose, and Spray Gun, page 30, as
required.
2. Engage the trigger lock.
3. XP Systems: Turn the main pump air regulator
(CB) fully counter-clockwise to shut off.
XP-h Systems: Set pump valve on.
4. Move the recirculation lines (U) to separate fluid
containers to pump remaining fluid out of the sys-
tem.
5. Open the circulation handle (AC). See F
IG. 3 on
page 17.
6. Increase the main pump air regulator (CB) pressure
to 20 psi (138 kPa, 1.38 bar).
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