10.4.2 Replacing the scissor arm on mobile stand
WARNING:
Before to remove the tubehead, close and tie the two sections of the
scissors arm together.
Failure to follow these instruction may harm both the technician and
damage the arm itself.
NOTE:
Before carrying out the following operations, disconnect the equipment
from the line.
1.
Remove the tubehead as described in paragraph 10.1.1, steps from 1
to 3.
2.
Remove the plastic timer cover loosening the two sealing screws
placed on the top part. Pull the cover to release the locking pins.
To make the operation easier, disconnect all wires between wall plate
and cover.
3.
Disconnect cables from connectors X2 and X4 (including shield W2).
Disconnect the main power supply cable from the main power supply
terminal strip (Figure 6-19).
4.
Remove the timer from the support plate.
5.
Remove the scissor arm.
6.
Assemble the new arm as described in paragraph 6.3.3.
7.
Fix the support plate and the timer as described in paragraph 6.2,
steps 5 and following.
8.
Connect the cables as described in paragraph 6.5.1.
9.
Reassemble the tubehead as described in paragraph 10.1.1, steps
from 4 to 6.
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