Flush Mixed Material - Graco XP-H Series Operation, Repair, And Parts

Flush Mixed Material

To avoid fire and explosion, always ground equipment
and waste container. To avoid static sparking and
injury from splashing, always flush at the lowest
possible pressure. Hot solvent may ignite. To avoid fire
and explosion:
• Flush equipment only in a well-ventilated area
• Ensure main power is off and heater is cool before
flushing
• Do not turn on heater until fluid lines are clear of
solvent
Flush the mix manifold when any of the following
situations occur.
• breaks in spraying
• overnight shutdown
• mixed material in system approaching end of potlife
Flush Mix Manifold, Hose, and Spray Gun
If your system doesn't include a solvent flush pump,
follow Empty and Flush Entire System, page 39.
1. Turn off heaters. Allow heater and heated hoses to
cool.
2. Follow the Pressure Relief Procedure on page 30.
3. Close the motor air shutoff valve (MA) to turn off the
pump air motor and reduce air pressure. Engage
trigger lock. Remove the spray tip and soak in
solvent.
3A0420ZAF
MA
4. Lift to close the dual shutoff handle (FE).
5. Open the solvent pump air valve (DA). Slowly turn
the solvent pump air regulator (DB) clockwise to
increase air pressure.
DB
DA
6. Open the solvent flush valve (FD)
Operation
FE
FD
37