Siemens 8BT2 Installation And Operating Instructions Manual page 60

Precondition
Procedure
60
Fig63. Slots at the left and right hand sides of shutter mechanism
Lower the right end of the lower shutter opening tool to horizontal position.
Release the knob to meet the two slots in the right lower shutter arm with the spring
powered lugs.
Push the knob to the right that surely the lugs meet the holes.
Lock the spring mechanism by screwing the knob clockwise (fig64).
Fig64. Knob mechanism of lower shutter opening tool
The lower shutter opening tool is functionally inserted.
Now, the lower shutter can be operated manually while busbars are energized.
Operating lower shutter manually
• Lower shutter opening tool inserted and locked.
Push the lower shutter opening tool at the two handles inside the panel until the lower
shutter is fully open (fig65 – 67).
Revision 04 * INSTALLATION AND OPERATING INSTRUCTIONS 8BT2 * 881-4027.9