Operation; Pressure Relief Procedure; Trigger Lock - Graco Therm-O-Flow 20 EasyKey NXT 2200 Instructions-Parts List Manual

Operation

Pressure Relief Procedure

Follow Pressure Relief Procedure when you stop
spraying and before cleaning, checking, servicing, or
transporting equipment.
This procedure describes how to relieve pressure for the
supply unit. Use this procedure whenever you shut off
the unit and before checking or adjusting any part of the
system.
1. Engage trigger lock.

Trigger Lock

Engaged
2. Close the system bleed-type master air valve (A).
311976A
TI8049A
A
TI8135A
3. Disengage trigger lock.
4. Hold a metal part of the gun firmly to a grounded
metal pail. Trigger the gun to relieve pressure.
5. Engage trigger lock.
Trigger Lock
Engaged
6. Open all fluid drain valves in the system, having a
waste container ready to catch drainage. Leave
drain valve(s) open until you are ready to spray
again.
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 hose
end coupling to relieve pressure gradually, then
loosen completely. Clear hose or tip obstruction.
7. To relieve pressure in the ram, see page 30.
Trigger Lock
Always engage the trigger lock when you stop spraying
to prevent the gun from being triggered accidentally by
hand or if dropped or bumped.
Operation
Trigger Lock
Disengaged
TI8050A
TI8049A
29