Startup - Graco ULTRA PLUS+ 750 Instructions-Parts List Manual

Lo-boy airless paint sprayer
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WARNING
INJECTION HAZARD
The system pressure must be manually
relieved to prevent the system from
starting or spraying accidentally. Fluid
under high pressure can be injected through the
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,
or install or clean the spray tip.
Pressure Relief Procedure
1. Engage the gun safety latch.
2. Turn the ON/OFF switch to OFF.
3. Unplug the power supply cord.
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.
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 loos-
en the tip guard retaining nut or hose end coupling to
relieve pressure gradually, then loosen completely.
Now clear the tip or hose obstruction.
Startup Procedure
Use this procedure each time you start the sprayer to
help ensure the sprayer is ready to operate and that
you start it safely.
WARNING
INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow the Pressure Relief
Procedure on page 8.

Startup

NOTE: Flush the sprayer if this is a first-time startup.
See page 11.
NOTE: See Fig. 5 except where noted.
1. Put the suction tube into the paint container.
2. Turn the pressure adjusting knob fully coun-
terclockwise to zero pressure.
3. Plug in the sprayer.
Do not run the sprayer dry for more than 30 seconds
to avoid damaging the pump packings.
FIRE AND EXPLOSION HAZARD
To reduce the risk of static sparking and
splashing when flushing, always remove
the spray tip from the gun and hold a
metal part of the gun firmly to the side of a
grounded metal pail.
4. Prime the pump.
a. Open the pressure drain valve (handle in down-
ward position). If you did not install a secondary
hose, be sure the nipple is tightly plugged with
the cap provided. T urn the ON/OFF switch to
ON. Slowly turn the pressure adjusting knob
clockwise until the sprayer starts. When
comes from the drain hose, close the valve (han-
dle in forward position).
b. Disengage the gun safety latch. See Fig. 4.
Following the warning, above, trigger the gun
until all air is forced out of the system and the
paint flows freely from the gun.
c. Release the trigger. Engage the gun safety latch.
CAUTION
WARNING
fluid

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231-574

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