
7
. Fix the Nylon Cord to the Release Lever on the device.
Caution: If the device is being used with the locking function, neither the
Release Lever (Fig. : C) nor the Nylon Cord may be impeded by the
cosmesis and they must be able to move freely.
Warning: If readjustment work is required, secure the Nylon Cord so that
it cannot catch in grinding tools.
Note: If the patient only wants to use the Dual Function Lever for releasing
the knee joint in certain situations (e. g., sitting down), the enclosed M
Allen Screws can be screwed into the slots in the Dual Function Lever. This
stops the lever from slipping up beyond the taper and thus permanently
inactivating the Release Lever (Fig. : C).
Converting the Joint (Fig. )
From Locking to Mechanical
Push the Release Lever (C) upwards and hold it in this position.
Turn the Release Screw (D) adjacent to the Release Lever (C) finger-tight
to the right to secure it in this position.
Tighten the Release Screw (D) to Nm and always secure it with
a medium strength threadlocker when finishing the prosthesis.
Caution: Failure in above mentioned conversion when tightening the
Release Screw (D) results in loss of function of the device and/or makes
it impossible to release the joint.
Caution: If the device is being used with the freely moving function, the
Release Screw (D) must be tightened to Nm and secured with
a medium strength threadlocker.
From Mechanical to Locking
• Conversion to a fixed knee is performed in the reverse order by
turning the Release Screw (D) to the left until the Release Lever (C)
moves freely.
• Secure the Release Screw (D) again with a medium strength
threadlocker and check that the Release Lever (C) is freely movable.
Caution: After every conversion, carry out a functional check before the
dynamic alignment.
Caution: If the device is being used with the locking function, the Release
Screw (D) must not impede the function of the Release Lever (C) and
must be secured with a medium strength threadlocker to rule out any
inadvertent loosening and incorrect function.
Note: If the device is being used with the locking function, a certain
amount of play may develop. This play can be eliminated with the help of
the Extension Stop Adjustment Screw (E) which is turned right. This
moves the Extension Stop, which compensates for the play.
If the Release Lever (C) does not click into place easily, correct the
position of the Extension Stop with the help of the Extension Stop
Adjustment Screw (E), which you turn to the left.
Caution: When readjusting the Extension Stop with the Extension Stop
Adjustment Screw (E), make sure that the device functions or locks
properly and carry out a functional check before the dynamic alignment.