Pressure Relief Procedure - Graco A Series Instructions - Parts Manual

Pressure Relief Procedure

WARNING
Read warnings, page 8. Relieve pressure before
cleaning or repairing gun.
1.
Engage safety lock, page 11.
CAUTION
Air supply is required for gun actuation. Do not dis-
connect gun air supply until fluid pressure is relieved.
2.
Close fluid valves A and B. Leave air valve (U)
open.
B
A
3.
Disengage safety lock, page 11.
309856A
TI3850a
U
TI3837a
TI3849a
4.
Trigger gun onto cardboard or into waste container
to relieve pressure.
5.
Engage safety lock, page 11.
WARNING
If fluid in the hose and proportioner is still under pres-
sure, follow the Pressure Relief Procedure in the pro-
portioner manual.
To relieve pressure in the hose after the gun is
removed, place the fluid manifold over containers, fac-
ing away from you. Very carefully open the fluid valves.
Under high pressure, fluid will spray sideways from the
fluid ports.
Pressure Relief Procedure
TI3861a
TI3850a
TI2484A
17