Graco XM Series Operation page 49

5. Open recirculation valves (AC, AD) for respective
pump dispense side. Run pumps until the A and B
hoppers are empty. Salvage the material in
separate, clean containers.
AC
NOTE: When priming or flushing the pumps, it is normal
to get cavitation or pump runaway alarms. Clear the
alarms , and press
These alarms prevent excessive pump speeds that can
damage pump packings.
6. Wipe hoppers clean, then add solvent to each.
Move circulation lines to waste containers.
7. Repeat Step 4, page 48, to flush through each side
until clean solvent exits recirculation hose.
8. Press . Move recirculation hoses back to
hoppers. Continue recirculating until system is
thoroughly flushed.
312359R
AD
again as necessary.
9. Close recirculation valves (AC, AD) and open mix
manifold valves (AH, AJ). Dispense fresh solvent
through mix manifold valves and out gun.
AC
AE
AH
10. Close mix manifold valves (AH, AJ).
11. Slowly open sampling valves (AE, AF) to flush
solvent through until clean. Close sampling valves.
Press .
12. Follow Park Fluid Pump Rods, page 50.
13. Remove pump fluid filters, if installed, and soak in
solvent. Clean and replace filter cap. Clean filter
o-rings and leave out to dry. Do not leave o-rings in
solvent.
14. Close main air valve (E).
NOTE: Fill A and B pump packing nuts with TSL. Also,
always leave some type of fluid, such as solvent or oil, in
the system to prevent scale build up. This build up can
flake off later. Do not use water.
Flush
AD
AF
AJ
49