Pressure Relief Procedure; Trigger Lock - Graco 24M398 Instructions Manual

Pressure Relief Procedure

Follow the Pressure Relief Procedure
whenever you see this symbol.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection, splashing
fluid and moving parts, follow the Pressure Relief
Procedure when you stop spraying and before
cleaning, checking, or servicing the equipment.
1. Engage the trigger lock.
2. Close all air motor supply valves or any source of
fluid pressure.
3. Close the dual shut-off handle (AE), open the
remote recirculation handle (CE), if used. Open the
recirculation handle on the XP proportioner.
4. Shut off fluid heaters, if used.
3A0590R
5. Shut off feed pumps, if used.
6. Disengage the trigger lock.
7. Hold a metal part of the gun firmly to a grounded
metal pail. Trigger the gun to relieve pressure.
8. Engage the trigger lock.
9. Open all fluid drain valves in the system, having a
waste container ready to catch drainage. Leave
drain valves open until you are ready to spray again.
10. If you suspect the spray tip or hose is clogged or
that pressure has not been fully relieved after
following the steps above, VERY SLOWLY loosen
tip guard retaining nut or hose end coupling to
relieve pressure gradually, then loosen completely.
Clear hose or tip obstruction.

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
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