Graco 311340C Welder User Manual


 
Pressure Relief Procedures
311340C 7
Pressure Relief Procedures
Relieve Fluid Pressure in
Gun
1. Engage safety lock.
2. Close manual valves. Leave air valve open.
3. Disengage safety lock.
4. Trigger gun onto cardboard or into waste
container to relieve pressure.
5. Engage safety lock.
Relieve pressure before cleaning or repairing
gun.
CAUTION
Air supply is required for gun actuation. Do
not disconnect gun air supply until fluid pres-
sure is relieved.
F
IG. 1: Close Manual Valves
Manual Valves
FIG. 2: Trigger Gun to Relieve Pressure
Fluid in hose and proportioner is still under
pressure. Follow Pressure Relief Procedure
in proportioner manual.
!
2