Ossur BALANCE KNEE OFM1 Gebrauchsanweisung Seite 9

Note: Swing control is working only when using the device as a freely
movable joint with integrated Extension Spring (refer to the following
section: Converting the Joint - From Locking to Mechanical).
Converting the Joint (Fig. 7)
From Locking to Mechanical
• Push the Release Lever (A) upwards and hold it in this position.
• Turn the two Release Screws (B) adjacent to the Release Lever (A)
finger-tight to the right to secure it in this position.
• Tighten the Release Screws (B) to 5 Nm and always secure them with
a medium strength threadlocker when finishing the prosthesis.
Caution: Failure in above mentioned conversion when tightening the
Release Screws (B) 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 Screws (B) must be tightened to 5 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 two Release Screws (B) to the left until the Release Lever
(A) moves freely.
• Secure the Release Screws (B) again with a medium strength
threadlocker and check that the Release Lever (A) 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
Screws (B) must not impede the function of the Release Lever (A) 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 (D) which is turned right. This
moves the Extension Stop, which compensates for the play. If the Release
Lever (A) does not click into place easily, correct the position of the
Extension Stop with the help of the Extension Stop Adjustment Screw
(D), which you turn to the left.
Caution: When readjusting the Extension Stop with the Extension Stop
Adjustment Screw (D), make sure that the device functions or locks
properly and carry out a functional check before the dynamic alignment.
USAGE
Cleaning and care
Wipe the device with a soft cloth. Do not use solvents.
Environmental Conditions
The device should not come in contact with fresh water, salt water or
chlorinated water.
Caution: Device should not be used in dusty environment. Exposure to
sand, talcum, or similar should be avoided.
The device can be used in temperatures between -10 °C to 40 °C.
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