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Inserting Batteries

1. To Open: Press down latch. The cap will spring open. 
2.

 Insert the battery, aligning the

 

red

 dots.  Be sure to properly fold 

down the top portion of the battery label to ensure water
tightness.  Also, be sure the gasket on the bottom side of the cap 
is clean and free from dirt and debris.

3.

 Close the battery compartment by 

pressing firmly on the entire 

cap

 

until latch engages.

FREEDOM INNOVATIONS

 

Charging Batteries

For optimal performance, alternate batteries every day. To charge, align 
the 

red

 dot on the battery with the

 

red

 dot on the charger.  A 12V car 

charger is also included.

The Status LED will illuminate 

red

 if the charger has power.  The Charge

 

LED 

wil

l illuminate 

red

 

, indicating the battery is charging.  When the 

battery is completely charged, the LED will illuminate 

green

 

. If the Charge 

LED stays 

red

 for more than four hours, this indicates that the battery is 

either damaged or worn out.  The temperature of the battery should be 
kept between 8 °C and 38 °C (46 °F to 100 °F) while charging.   If the 
temperature goes outside this range, the Charge L

ED  will  shutoff 

indicating  that  charging  was  stopped  before  the  battery  was  fully 
charged. 

Battery Cap Closed

Adjustment of Swing Flexion Resistance

heel rise during walking.  Excessive heel rise limits your ability 

be increased or decreased by changing the air pressure in the 
hydraulic cylinder. A higher air pressure provides more swing 

Over time, the air pressure in the hydraulic cylinder will decrease, 
resulting in a performance change.  To ensure the knee provides 

pressure and add as needed.

To check the air pressure in the hydraulic cylinder, remove the 
plug by pushing in the white release ring and pulling on the soft 
plastic tab on the side of the plug.  Attach the air pump by gently 
inserting the tip of the adapter into the port. Push the pump 

inserted. Using the air pump, increase the air pressure to the 
value recommended by your prosthetist.  If you add too much air 

pressure, it can be decreased by pressing the air pump relief valve under the gauge 
on the pump.  The knee should be used with the air pressure between 20 and 100 psi 
(140 to 690 kPa).  Remove the air pump by pushing in the release ring and gently 

it bottoms out.

The pump’s pressure gauge always indicates the air pressure inside the knee. However, 

the pump, and the pump gauge will read ½ of what was in the knee.  For example, 
if the pump’s gauge indicates 15 psi at the time it is connected to the knee, the knee 
had about 30 psi of air pressure before connecting the pump.  Air pressure in the knee 
does not drop when the air pump is disconnected.  For example, if the pump’s gauge 
indicates 30 psi before it is disconnected, the knee will still have 30 psi of air pressure 
after disconnecting the pump.  When the air pump is removed from the knee, a sound 
of air leaking may be heard. This sound is air expelling from the pump hose to the 
atmosphere.

Except when adjusting the air pressure, the air cap should remain inserted. The air 
cap prevents lint and other debris from contaminating the air valve.  Additionally, the 
air cap acts as a second seal to minimize air pressure loss.

Plié3 Owner’s

Guide

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