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ADJUSTMENTS
All adjustments can be made using a 4mm Allen wrench.
EN
STANCE PHASE
Load Dependence
Controls the brake sensitivity. When load is applied, the knee will not bend until the
load is displaced. Turning the load adjustment clockwise will increase the amount of
load required to initiate braking.
Factory setting = Screw is at minimum (most brake sensitivity).
Note: The factory setting for load dependence should generally not require adjustment.
However, it may be necessary in cases such as patients with higher body weights, more
aggressive gait, or alignment differences.
Stance Adjustment
Controls the amount of stance flexion. Adjustments can be made to alter the amount
of stance flexion during loading response.
Factory setting = Turn screw clockwise to the point where resistance is felt, then back
out about 1/8 turn (counterclockwise).
Readjustment after continued use – The screw should generally not require adjustment;
however, play may develop over time. Turn screw 1/8 clockwise to reduce play.
Note: Stance adjustment works together with load dependence to control the brake
function. If decreasing the stance adjustment, it may be necessary to also increase the
load dependence adjustment.
Caution: Do not over tighten. May lead to brake sticking which can cause unstable gait.
SWING PHASE
Flexion Resistance
Controls the rate of flexion.
Extension Resistance
Controls the rate of extension.
Factory setting = both screws at minimum (counterclockwise).
Begin by adjusting the flexion resistance or heel rise first, then the extension resistance
to control terminal impact.
Note: After adjusting the swing phase resistance, it may be necessary to readjust the brake.
Caution: Flexion and extension must be possible at all settings.
DYNAMIC ADJUSTMENTS
Note: The effect of a dynamic adjustment can be felt with as little as 1/8 - 1/4 turn.
STANCE PHASE
Load Dependence
SYMPTOM
Brake function too
strong; Swing too
difficult to initiate
Brake function not
sufficient; Knee too
unstable during stance
(Figure 4)
(Figure 4A)
(Figure 4B)
(Figure 4C)
(Figure 4D)
DESIRED RESULT
Increase Load
Dependence (brake
less sensitive)
Decrease Load
Dependence (brake
more sensitive)
SCREW
ADJUSTMENT
L
Turn
clockwise
L
Turn
counterclockwise
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