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,
Dcheck or service any of the system equipment,
Dor install or clean the spray tip.
1.Lock the gun trigger safety.
2.Close the
3.Unlock the gun trigger safety.
4.Hold a metal part of the gun firmly to the side of a grounded metal pail, and trigger the gun to relieve pressure.
5.Lock the gun trigger safety.
6.Open the drain valve (required in your system), having a container ready to catch the drainage.
7.Leave the 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 loosen the tip guard retaining nut or hose end coupling and relieve pressure gradually, then loosen completely. Now clear the tip or hose.
Adjusting the Regulator
The fluid pressure regulator controls pressure down- stream from its outlet.
To adjust the fluid regulator, first, back the knob out until there is no spring pressure. Then, turn the knob clockwise to increase pressure.
NOTE: If you are using an accessory fluid pressure gauge, relieve the spray gun line when reducing pres- sure to ensure a correct gauge reading.
Adjust the pump air pressure and the fluid regulator for the best spraying combination. In a circulating system, also adjust the back pressure valve.
Record all the settings for future reference. The valve cylinder (7) has exterior markings (set points 1 to 8) for repeat settings.
306878 7
