When to Shut Down the System

Operation

When to Shut Down the System

Shut down the system at the end of the work shift and before checking, adjusting, cleaning, or repairing the system. Always relieve the pressure.

Flushing the System WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 6.

Flushing the System

Flush the system at the following times:

DBefore the first-time use

DWhen changing colors

DBefore fluid can dry or settle out in a dormant system.

DBefore storing the system

Flush the system as follows (See Fig. 1):

1.Relieve the pressure.

1.Relieve the pressure. WARNING

To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 6.

2.Remove the gun air cap before flushing, and clean it separately.

3.Place the suction tube into a grounded metal pail of compatible solvent.

4.Make sure the air regulators (E and F) are closed.

NOTE: The gun air regulator (F) always stays closed during flushing.

5.Open the bleed-type master air valve (K).

6.Slowly open the pump air regulator (E) until the pump starts.

7.Hold the gun against a grounded metal waste pail, and fully trigger the gun. If your system has a fluid pressure regulator (G), slowly open it until the fluid flows smoothly.

8.When solvent appears, release the gun trigger.

9.For a first-time flush: trigger the gun and flush with solvent for 30 seconds.

For flushing after spraying fluid: trigger the gun and flush with solvent until the system is thoroughly cleaned.

10.Repeat the procedure with clean solvent, if needed.

11.Lift the fluid intake tube from the fluid supply, and trigger the gun and run the pump until air comes from the gun.

12.Relieve the pressure.

The system is now ready to be stored or primed with another fluid. See Priming the System on page 7.

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Graco Inc 240-349, 240-351, 240-352 manual When to Shut Down the System, Flushing the System, Operation, Relieve the pressure