22
5
Troubleshooting
Status
Items to be checked
Countermeasures
Even if hydraulic resistance is
adjusted to a higher level,
yielding strength is not
increased.
Check if the way to apply
body weight is proper.
POINT 1
Practice how to fully apply
body weight to the heel.
J
See (page 14).
In the stance phase during
walking on a level floor, minor
wobbling motions occur on
the knee joint.
Check if the knee joint is
flexed at the heel contact.
Practice how to walk with the
knee fully extended in the
stance phase.
Hydraulic resistance becomes
effective when it is not
supposed to. (Sticking occurs
during transition from stance
to swing phase.)
Check if hydraulic sensitivity is
adjusted too strong.
Loosen the sensitivity
adjusting plug. (DO NOT
make 3 turns or more from
the fully closed position.)
J
See 4-1-3 (page 16).
Check if alignment is proper.
Adjust so that body weight can
be fully applied to the heel.
Check if the foot is
appropriate.
Select a foot with which body
weight can be fully applied to
the heel.
Check if alignment is proper.
Adjust alignment to the
stable side.
Check if the pneumatic
cylinder cushion is adjusted
too strong.
Loosen the cushion valve.
Check if the pneumatic
cylinder cushion is adjusted
too strong.
Loosen the cushion valve.
Check if smooth heel-to-toe
weight shift is achieved while
walking.
Provide gait training so that
body weight is fully applied to
the toe of the prosthetic foot
at time of toeing off.
The above measures can not
resolve the problem.
Insufficient toe load at the
time of push-off is suspected.
Proper alignment, foot
selection, adjustment, and
gait training are essential to
take full advantage of this
knee joint.
The above measures can not
resolve the problem.
Contact your local sales
representative/dealer.
