Graco XP-h, Instructions Manual

Page: 30 / 70

Flush Mixed Material
30 3A0420V
Flush Mixed Material
Flush the mix manifold when any of the following situa-
tions occur.
• breaks in spraying
• overnight shutdown
• mixed material in system approaching end of potlife
To flush the entire system, see Empty and Flush
Entire System (new system or end of job) , page 31.
Flush Mix Manifold, Hose, and
Spray Gun
If your system doesn’t include a solvent flush pump, see
step 2 of
Empty and Flush Entire System (new sys-
tem or end of job) , page 31.
Turn off heaters. Allow heater and heated hoses to cool.
Use Optional Solvent Pump
1. Close the main air shutoff valve (CA) to turn off the
system. Engage trigger lock. Remove the spray tip
and soak in solvent.
2. Close the dual shutoff handle (AE).
3. Open the solvent pump air valve (DA). Slowly turn
the solvent pump air regulator (DB) clockwise to
increase air pressure.
4. Open the solvent flush valve (AD).
5. Disengage the trigger lock and trigger gun into a
grounded pail. Use a pail lid with a hole to dispense
through. Seal around the hole and gun with a rag to
prevent splash back. Be careful to keep fingers
away from the front of the gun. Continue flushing
until clean solvent dispenses.
6. Close the solvent pump air valve (DA). Trigger the
gun to relieve pressure. Close the solvent flush
valve (AD) after relieving the pressure.
7. Follow Pressure Relief Procedure , page 24.
8. Engage the trigger lock. Disassemble and clean the
spray tip with solvent by hand. Reinstall on the gun.
TI1949a
CA
r_571100_3A0420A_11a-1
DA
DB
r_571101_3A0420A_5a-2
AD
AB
TI1950a
TI1953a
AD
DA
r_571101_3A0420A_12a-2
r_571101_3A0420A_12a
TI1949a
4)!
TI1948a