Knee Levers

Knee levers are used to lower or raise various strings. A knee lever can used in several ways, including:

• By themselves
• In combination with another knee lever
• More typically, in combination with 1 or 2 pedals

There are 3 basic knee lever configurations:

Non-Reversing (moves to the left)
This configuration typically uses a knee lever mounted directly on the cross-shaft to be activated.

 

Reversing (moves to the right)
Reversing Knee Levers come in 3 basic configurations:

• Center-pivot Reversing Knee Lever
 
• Bell-crank and linkage Reversing Knee Lever
 
• Compound Reversing Knee Lever
 

Vertical (moves up)
Vertical knee levers typically are located above the left knee between the 2 left knee levers.

 

All together now...
The drawing below shows both reversing and non-reversing knee levers: