Graco GM 3000 Instructions-Parts List Manual page 13

Flushing
How
to
Flush
A
CAUTION
1
When changing fluids', do not drain all of the first fluid
from the suction tube before inserting the suction tube
into the anotherfluid. Not doing so may introduce
excessive air into the pump and cause the pump to
lose prime.
After moving the suction tube to a new fluid, pump the
first fluid and any trapped air, out through the drain
valve before beginning to pump the new fluid to the
guns.
J
NOTE: The word solvent refers to water or oil-based
solvent.
1. Follow the Pressure Relief Procedure, page 12.
2.
Remove the filter bowl and screen: see instruction
support, without the screen, to flush. Clean the
manual
308-249,
supplied. Install the bowl and
screen separately.
3. Close the pressure drain valve.
4.
Put the suction tube in a grounded pail of solvent.
5.
Remove
the
spray tip from the gun.
FIRE
AND EXPLOSION HAZARD
To reduce static sparking and splashing,
gun, and hold a metal part of the gun
always remove the spray tip from the
flushing.
firmly to the side of a grounded metal pail when
6.
Follow Startup on page
9.
Keep the gun trig-
gered until clean solvent comes from the nozzle.
Release the trigger and lock the gun trigger safety.
,-.
A
CAUTION
Operation with the pump not primed can lead to
premature packing wear and damage to the pump.
7. Check all fluid connections for leaks. Relieve the
the sprayer. Recheck the connections for leaks.
pressure before tightening any connections. Start
8.
Remove the suction tube from the solvent pail;
force solvent from the hose. Do not let the pump
Unlock the gun trigger safety. Trigger the gun to
ing the pump packings. Relieve the pressure.
run dry for more than
30
seconds, to avoid damag-
9.
Unscrew the filter bowl and reinstall the clean
screen. Reinstall the bowl, hand tight only.
10.
Follow Storage or Changing Colors, on page
12
Relieve the pressure.
308-620
13