Graco 24E512, Operation And Repair Manual

Page: 22 / 54

Pressure Relief Procedure
22 3A0232E
Pressure Relief
Procedure
1. Shutdown proportioner.
2. Relieve proportioner pressure. See proportioner
manual.
3. Engage gun trigger lock.
4. Close the bleed-type master air valve.
5. Disengage the trigger lock.
6. Hold a metal part of the gun firmly to a grounded
metal pail. Trigger the gun to relieve pressure.
7. Engage the trigger lock.
8. With a waste container in place, open all fluid drain
valves in the system. Leave drain valve(s) open until
you are ready to spray again.
9. If you suspect the spray tip or hose is clogged or
that pressure has not been fully relieved after follow-
ing the steps above, VERY SLOWLY loosen retain-
ing ring (D) or loosen hose end coupling to relieve
pressure gradually, then loosen completely. Clear
hose or tip obstruction. See F
IG
. 1 on page 10 for
part references.
Shutdown
Daily
1. Perform Pressure Relief Procedure .
2. Perform Clean Gun Front End procedure, see
page 24.
Long-Term
If gun will be unused for at least one week, perform this
long-term shutdown procedure.
1. Perform Daily shutdown procedure.
2. Flush Gun , see page 23.