User's Manual

Pressure Relief Procedure
3A0294G 51
Pressure Relief Procedure
1. Lock the gun/valve trigger.
2. Change to manual mode in the run screen. See
Change Operation Mode, page 62.
3. Shut off the air supply to the system.
4. Shut off the air valve by pressing the Air On/Off soft
key on the display module.
5. Close the manual air valve.
6. Unlock the gun/valve trigger.
7. Hold a metal part of the gun/valve firmly to the side
of a grounded metal pail, and press or step
on the foot switch.
8. Lock the gun/valve trigger.
9. Open the material line drain valve and the pump
bleeder valve. Have a container ready to catch the
drainage.
10. Leave the pump bleeder valve open until you are
ready to spray/dispense again.
11. If you suspect that the spray tip/nozzle or hose is
completely clogged, or that pressure has not been
fully relieved after following the previous steps, very
slowly loosen the tip guard retaining nut hose end
coupling and relieve pressure gradually; then loosen
completely. Now clear the tip/nozzle or hose.
Trapped air can cause the pump to cycle
unexpectedly, which could result in serious injury
from splashing or moving parts
FIG. 102: Drain Material
Drain/Purge
+
Valve