Pressure Relief Procedure - Graco GM 3000 Instructions-Parts List Manual

Pressure Relief Proc,edure
INJECTION HAZARD
The system pressure must be manually
relieved to prevent ihe system from
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,
stop spraying,
check or service.any of the system equipment,
install or clean the spray tip.
When
to
Flush
1. New Soraver, This sprayer was factory tested in
lightweight oil,which was left in to protect the pump
parts.
Before using water-base paint, flush with mineral
spirits, followed by a soapy water flush, and then a
clean water flush.
Before using &base paint, flush with mineral
spirits.
2. Chanaino Colors. Flush with a compatible solvent
such as mineral spirits or water.
3. C - n t . , Flush
with warm, soapy water, then mineral spirits.
4. Chanaino from oil-base to water-base aaint Flush
with mineral spirits, followed by warm, soapy
water, and then a clean water flush.
~
A
CAUTION
T o
prevent pump corrosion or damage to pu,mp
components, never leave water or any type of paint
in the sprayer when it is not in use. Pump the water
or the paint out with mineral spirits.
1. Engage the gun safety latch.
2. Turn the engine switch to OFF.
3. Move the pressure control ONIOFF switch to OFF. (
4. Disengage the gun safety latch. Hold a metal part
the gun to relieve pressure.
of the gun firmly to a grounded metal pail. Trigger
5 .
Engage the gun safely 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.
If you suspect that the spray tip or hose is completely
clogged, or that pressure has not been fully relieved
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.
Flushing
5. Storaae,
Waterbase 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 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.
6.
Startuo after s t o w
mineral spirits with soapy water, and then with
Before using water-base paint, flush out the
clean water.
spirits with the paint to be sprayed.
When using oil-basedpaint, flush out the mineral