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Pneumatic Shutter Mechanism
To test the function of the shutter mechanism on a pneumatic shutter, complete
the following steps:
1. Remove the padlock.
2. Pull out the safety bolt.
3. Using compressed air, move the shutter from "OFF" position to the "ON"
position. The shutter should move easily to the "ON" position.
4. Reduce the pressure below 4 bar (58 psi). The shutter must move back to
the "OFF" position.
Leak Test
A leak test is required at regular intervals or after an incident that could impair
the source holder shielding, as noted by the specifications of the handling permit.
Specifically, you must perform a leak test for the following reasons:
• Regular testing during operation
• When the source holder is stored for longer periods
• When the source holder is placed into operation after an extended
storage period
The shutter should move easily and have no traces of corrosion.
If the shutter is not movable or difficult to move, contact your
radiation safety officer.
Do not grasp any mechanical parts of the pneumatic drive while the
pneumatic actuator is switching over.
The shutter should move easily and have no traces of corrosion.
If the shutter is not movable or difficult to move, contact your
radiation safety officer.
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