Graco Inc. 313872n Webcam User Manual


 
Pressure Relief Procedure
22 313872N
Pressure Relief Procedure
1. Engage piston safety lock. See page 13.
NOTE: Air supply is required for purge rod actuation. Do
not disconnect gun air supply until fluid pressure is
relieved.
2. Close fluid valves A and B. Leave air valve (AB)
open.
3. Disengage piston safety lock. See page 13.
4. Trigger gun onto cardboard or into waste container
to relieve pressure.
5. Disconnect air quick coupler (AC). See F
IG. 12.
6. Engage piston safety lock. See page 13.
7. Relieve system pressure. See Pressure Relief Pro-
cedure in proportioner manual.
8. Ensure fluid valves are closed then remove fluid
manifold.
9. Place the fluid manifold over waste containers, fac-
ing away from you.
10. Very slowly open the fluid valves. Under high pres-
sure, fluid will spray sideways from the fluid ports.
FIG. 12
F
IG. 13
ti19549a
AB
AC
ti19563a
TI2484a