BERTHOLD TECHNOLOGIES Uni-Probe LB 490 - Page 54

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7 Source Replacement Volume 1
away from your body and put it down, if possible, behind an auxil-
iary shielding.
 Unscrew the source holder (3) with the source (4) from the
shielding using a size 12 socket wrench.
Remove source from shielding  Unscrew the source from the source holder using a socket
wrench (size 10mm). Hold the source holder using a second
socket wrench (SW 13).
IMPORTANT
For this work, you should use the shielding housing as an auxiliary
shielding between source and body.
 Take hold of the source using a pair of pliers and immediately
put it into the transport shielding or another shielding.
IMPORTANT
Make sure that no mix-up with the new or other sources can occur.
 If necessary, clean and grease the thread on the source holder
and the shielding.
Install new source  Using a pair of pliers, take the new source out of the transport
shielding and firmly fix it onto the source holder together with
the locking washer.
 Put the source holder with the source again into the shielding
and fix it using the socket wrench.
Assemble shielding again  Attach the brass cover (2) again after you have checked if the
O-ring seal is clean and undamaged.
 Install the head flange (1) again and fix it carefully with
screws.
 Check the proper ON/OFF function.
 Carefully close the transport shielding again, after you have put
the old source into the transport shielding.
Replace type label  Replace the type label on the shielding or attach the new source
number.
IMPORTANT
The special regulations regarding labeling and transport of the
shielding back to the manufacturer have to be observed. If in
doubt, please contact BERTHOLD TECHNOLOGIES' Source Trans-
port Manager.
This completes the source replacement.