Graco Inc. 234032 - Manual (Page 6)

Pressure Relief Procedure
6 309523D
Pressure Relief Procedure
7.
If you suspect that pressure is not fully relieved
because:
• Spray tip is clogged
SwitchTip: Follow procedure on page 10.
Flat Tip: Very slowly loosen tip guard retaining
nut and relieve pressure gradually then loosen
completely. Clear tip.
• Hose is clogged
Slowly loosen hose end coupling and relieve
pressure gradually. Clean hose obstruction.
WARNING
Read warnings, page 3.
1.
Engage trigger lock.
2.
Shut off pump. Close bleed-type master air valve
(pneumatic pumps only).
3.
Disengage trigger lock.
4.
Hold a metal part of the gun firmly to a grounded
metal pail. Trigger gun to relieve pressure.
T12178A
5.
Engage trigger lock.
6.
Open fluid drain valve; have a container ready to
catch drainage. Leave drain valve open until you
start spraying again.