Safety Warnings - Össur BALANCE KNEE OFM2 Manual Del Usuario

Mechanical ▸ locking
• Conversion to a fixed knee is performed in the reverse order by turning the two release screws to the left with a
2.5 mm Allen key until the release lever (24) moves freely.
• Secure the release screws (27) again with Loctite and then check that the release lever is freely and completely
movable (24).
Note: After every conversion test the function before carrying out the dynamic trial fitting.
Important additional information:
When using the optional lock on the Balance Knee OFM2, a certain amount of play can be felt. This play can be
eliminated with the help of the screw (28) which is turned right with a 2.5 mm Allen key. This moves a buffer which
compensates for the play. If the release lever (24) does not click into place easily, correct the position of the buffer
with the help of the screw (28) which you turn to the left.
MOUNTING THE DUAL FUNCTION LEVER
For laminated sockets
• Laminate the threaded couple in the desired position.
• Fix the lamination tube in the laminate.
• Mount the dual function lever on the threaded couple. Secure the screw with Loctite.
• Guide the nylon lanyard through the lamination channel.
• Set the dual function lever in the lower position.
• Snap the release lever (27) into the knee joint.
• Fix the nylon lanyard to the release lever (27) on the joint.
• Secure the retaining screw (28) with
• Loctite and tighten by hand. Use a 2 mm Allen key.
For plastic sockets
• Drill a hole in the socket in the desired position and fix the threaded couple from the inside of the socket.
• Mount the dual function lever. Secure the screw with Loctite.
• Use the guide clips to determine where the protective duct will run.
• Fix the protective duct in the guide clips.
• Pass the nylon lanyard through the protective duct.
• Set the dual function lever in the lower position.
• Snap the release lever (27) into the knee joint.
• Fix the nylon lanyard to the release lever (27) on the joint.
• Secure the retaining screw (28) with Loctite and tighten by hand. Use a 2 mm Allen key.
Note: If the user only wants to use the dual function lever for releasing the knee joint in certain situations (e.g.
sitting down), the enclosed M4 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. 6).

SAFETY WARNINGS

• The adapters used for the upper connection must always be tightened to the torque prescribed for the
respective modular component. Use a torque wrench.
• The adapters used for the lower connection (e.g. tube adapter) must be inserted down to the end stop in the
tube receiver of the knee joint.
• The screw (5) on the tube receiver must be tightened to 16 Nm and secured with Loctite. Use a torque wrench
(5 mm Allen key).
• If the joint is being used with the locking function the release screw (27) must not impede the function of the
release lever (24) and must be secured with Loctite to rule out inadvertent loosening and incorrect function.
• If the joint is being used with the freely moving function the release screw (27) must be tightened to 5 Nm and
secured with Loctite. Use a torque wrench (2.5 mm Allen key).
• If the joint is being used with the dual lever function the retaining screw (23) must always be tightened
handthight and secured with Loctite. Use a 2 mm Allen key.
• If the joint is being used with the locking function neither the release lever (24) nor the nylon cord of the dual
function lever (33) must be impeded by the cosmesis. The cord must run freely.
7