Ottobock 3R93 Instrucciones De Uso página 27

16. Push the pull cable through the bore in the lock slide. Determine the length of the pull cable
and cut it to length (Figure 22).
17. Thread the screw bushing onto the end of the pull cable (Figure 23).
The lock slide is mounted correctly if the two ends of the pull cable point to the connecting points
on the lock slide and on the knee joint pull strap in a straight line (Figure 24).
Verification of functionality
CAUTION
Risk of falling if the lock does not engage properly. If the pull cable has been mounted incor-
rectly (lock opens unintentionally at knee flexion moment, lock does not engage at full extension),
the knee joint may flex unintentionally and cause the patient to fall.
Verify the locking function after all adjustments.
18. Check whether the joint reaches full extension with the pretension of the pull cable (Figure 25).
19. Check whether the lock release is easy to operate.
Deactivating the locking function
CAUTION
Risk of falling. It is essential to advise the patient that temporarily deactivating the locking func-
tion with the lock slide can result in unsafe situations (intervention in the functionality).
INFORMATION
To permanently deactivate the locking function in the course of rehabilitation, proceed as de-
scribed in Section 4.2.1.
The locking function can be temporarily deactivated with the help of the lock slide. A modification
of the lock slide is required in order to do so.
20. Unscrew the lock slide from the socket.
21. Open the supplementary guide on the lock slide by trimming the plastic lugs (Fig. 26).
22. Mount the lock slide on the socket.
> Now the joint can be temporarily unlocked and locked by engaging the lock slide (Figure 27).
4.2.3 Adjusting the braking function
CAUTION
Risk of falling due to incorrect brake function setting. In case of incorrect brake function
setting, the knee joint might flex unintentionally or the brake may get stuck, which may cause
the patient to fall.
The sensitivity of the brake must be set such that a sufficient braking effect is guaranteed and
the brake does not get stuck when the prosthesis is unloaded.
Observe the following adjustment instructions.
Factory setting of the sensitivity of the brake is such that in general it does not have to be adapted
to the patient. If required, however (e.g. in case of higher body weight), the sensitivity of the brake
can be adjusted by turning the adjustment screw (Fig. 6, item A) using an Allen wrench (size 4 mm).
3R93 Ottobock | 27