Setup/Operation
General Information
NOTE: Reference numbers and letters in parentheses in the text refer to the callouts in the figures and the parts drawing.
NOTE: Always use Genuine Graco Parts and Acces- sories, available from your Graco distributor.
Grounding
WARNING
FIRE AND EXPLOSION HAZARD Before operating the pump, ground the system as explained below. Also read the section FIRE OR EXPLOSION HAZ- ARD on page 4.
1.Pump: Ground the complete pump as indicated in your separate pump instruction manual.
2.Air hoses: use only electrically conductive air hoses
3.Fluid hoses: use only electrically conductive fluid hoses.
4.Air compressor or hydraulic power supply: follow manufacturer’s recommendations.
5.Spray gun or dispensing valve: ground through connection to a properly grounded fluid hose and pump.
6.Fluid supply container: follow your local code.
7.Object being sprayed: follow your local code.
8.Solvent pails used when flushing: follow your local code. Use only metal pails, which are conductive, placed on a grounded surface. Do not place the pail on a nonconductive surface, such as paper or cardboard, which interrupts the grounding continu- ity.
9.To maintain grounding continuity when flushing or relieving pressure, hold a metal part of the spray gun firmly to the side of a grounded metal pail, then trigger the gun.
Operation
Pressure Relief Procedure
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:
Dare instructed to relieve the pressure,
Dstop spraying/dispensing,
Dcheck or service any of the system equipment,
Dor install or clean the spray tips/nozzles.
1.Lock the spray gun/dispensing valve safety latch.
2.Shut off the air or hydraulic supply to the pump.
3.In
4.Unlock the gun/valve trigger safety.
5.Hold a metal part of the gun/valve firmly to the side of a grounded metal pail, and trigger the gun/valve to relieve pressure.
6.Lock the gun/valve trigger safety latch.
7.Open the drain valve (required in your system), having a container ready to catch the drainage.
8.Leave the drain valve open until you are ready to spray/dispense 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 loosen the tip guard retaining nut or hose end coupling and relieve pressure gradually, then loosen completely. Now clear the tip or hose.
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