Flushing - Graco GM 3000 Instructions-Parts List Manual

Pressure Relief Procedure
INJECTION HAZARD
The system pressure must be manually
under high pressure can be injected through the
starting or spraying accidentally. Fluid
skin and cause serious injury. To reduce the risk of
an injury from injection, splashing fluid, or moving
parts, follow the Pressure
Relief
Procedure
whenever you:
are instructed to relieve the pressure,
0
stop spraying,
check or service any of the system equipment,
0
or install or clean the spray tip.
.
relieved to prevent the system from
1 . Engage the gun safety latch.
2.
Turn the engine switch to OFF.
3. Move the pressure control ON/OFF switch to OFF.
4. Disengage the gun safety latch. Hold a metal part
of the gun firmly to a grounded metal pail. Trigger
the gun to relieve pressure.
5. Engage the gun safety latch.
6. Open the pressure drain valve. Leave the pressure
drain valve open until you are ready to spray
again.
7. Disconnect the spark plug cable.
clogged, or that pressure has not been fully relieved
If you suspect that the spray tip or hose is completely
after following the steps above, VERY SLOWLY
loosen the tip guard retaining nut or hose end coupling
to Relieve the pressure gradually, then loosen com-
pletely. Now clear the tip or hose.
When
to
Flush
1.
New SDraver. This sprayer was factory tested in
lightweight oil,which was left in to protect the pump
parts.
Before using wafer-base paint, flush with mineral
spirits, followed by a soapy water flush, and then a
clean water flush.
spirits.
Before using oil-base paint, flush with mineral
2. Cha naino Colors, Flush with a compatible solvent
such as mineral spirits or water.
3.
Chanaina from water-base to oil-base oaint. Flush
with warm, soapy water, then mineral spirits.
Flushing
5. Storaae.
Wafer base paint: flush with water, then mineral
spirits and leave the pump, hose and gun filled
with mineral spirits. Shut off the sprayer, remove
the spark plug cable, and open the pressure drain
valve to Relieve the pressure. Leave the drain
valve open.
Oil
base
paint: flush with mineral spirits and leave
the pump, hose and gun fiiied with mineral spirits.
Shut off the sprayer, remove the spark plug cable,
and open the pressure drain valve to Relieve the
pressure. Leave the drain valve open.
4.
Chanoina from oil-base to water-base Daint.~Flush
with mineral spirits, followed by warm, soapy
water, and then a clean water flush.
6. StartuD after storaae.
A
CAUTION
1
To prevent pump corrosion or damage to pump
components, never leave water or any type of paint
in the sprayer when
it
is not in use. Pump the water
or the Daint out with mineral soirits.
mineral spirits with soapy water, and then with
Before using wafer-base paint, flush out the
clean water.
spirits with the paint to be sprayed.
When using oil-basedpainf, flush out the mineral
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