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Seat Height

Lift right hand lever. Use body weight 

to raise or lower the seat (sit on the 

seat to move down, take weight off  

to move up). The seat will lock at the 

height the lever is released.

Calculus

Operating Instructions

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Back Height

Place hand below back and slowly 

lift to desired height using 8-point 

ratchet system. When the highest 

point is reached the back will drop to 

the starting position.

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Height Adjustable Arm

Pull up button on the inside of the 

arm to raise or lower. Release when at 

desired position.

Freefl oat Mechanism

Pull up rear lever to right and side 

of seat. The chair back will remain in 
permanent contact with the user as 

they move throughout the day. To 

secure the back at any desired angle 

push lever down.

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Please note all instructions are assuming the user is sat in the chair.

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