Pressure Relief Procedure - Graco A Series Instructions - Parts Manual

Pressure Relief Procedure

Read warnings, page 5. Relieve pressure before
cleaning or repairing gun.
1.
Engage piston safety lock.
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 inlet (W)
open.
B
A
3.
Disengage piston safety lock.
310649C
4.
Actuate gun onto cardboard or into waste con-
tainer to relieve pressure.
5.
TI3850A
Engage piston safety lock.
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.
TI4752A
TI3849A
Pressure Relief Procedure
TI4753a
TI3850A
TI2484A
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