Ottobock Varos 5A60-Serie Gebrauchsanweisung Seite 39

6.3.6 Screwing together the side rails and socket shells
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Complete the following steps to install the side rails:
1) Slide the two side rails simultaneously into the side rail guides on the socket shell.
2) The medial side rail has to extend at least 2 cm into the pocket of the medial side rail guide.
3) Screw the side rails to the side rail guide on the socket shell with slot nuts, clamping pieces
and countersunk head screws (M4x8).
4) Tighten the countersunk screws to a tightening torque of 1.5 Nm and 2 Nm (see see fig. 28
and see fig. 27).
5) Re-tighten all screws after 30 minutes and secure with 636K13 adhesive.
INFORMATION: When securing the screws, loosen only one screw at a time, apply the
adhesive to the thread and tighten the screw again to the specified tightening torque.
The following conditions have to be met to ensure the proper strength of the connection between
the side rail and socket shells:
• The socket may be lengthened by "extending" it from the stop of the side rails by no more
than 2 cm.
• The minimum overlap length between the side rail guides and side rails has to be maintained:
10 cm medial, and 8 cm lateral (sum of the length of the clamping pieces).
• Two clamping pieces have to be installed on the lateral socket shell.
The first clamping piece must be located at the lowest possible position of the over­
lap. The second clamping piece must be located at the highest possible position of
the overlap.
• At least one clamping piece has to be installed on the medial socket shell.
The clamping piece must be located at the lowest possible position of the overlap.
The medial side rail has to extend at least 2 cm into the pocket of the medial side rail guide.
The top countersunk screw has to be installed (the countersink for this screw is directly in the
medial shell).
• The screws are re-tightened after 30 minutes and secured with 636K13 adhesive as
described above.
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