Summit Impact IM31 Operating Instructions Download Page 1

Chair Height Adjustment. 

The overall height of the chair is adjusted by lifting the 

lever located below the front of the seat on the right hand side. Lift your weight 
off the chair allowing it to rise and release the lever at the desired height. To lower 
simply lift the lever.

Back Angle Adjustment. 

The back angle is adjusted by pushing down the lever 

located below the seat on the left-hand side. Please be aware that there is a safety 
feature that requires you to lean gently into the back before it will release. The 
back can be locked at the required angle by lifting the lever or left unlocked to 
follow the user’s movements. The tension of the recline is adjusted by turning the 
knob located under the front of the seat.. 

Seat Angle Adjustment.

 The angle of the seat can be adjusted by lifting the lever 

located under the right hand side of the seat, towards the back. Lift the lever to set 
seat angle and push down to lock. 

Seat depth Adjustment. 

The seat depth is adjusted by pushing in the button 

located in the middle of the right hand side of the seat. Slide the seat forwards and 
release the button to lock in desired position.

Back height adjustment. 

The back height is adjusted by lifting it up a step at a time 

for correct positioning of the lumbar support. When the back reaches the top of its 
travel it will then drop back to the start position.

Inflatable Lumbar Support. 

The inflatable lumbar support is adjusted using the 

hand bulb hanging under the left-hand side of the seat. Squeeze the bulb to inflate 
and press the button on the bulb to deflate.

Need any help?  

  /    

01225 777 844  

  /    

[email protected] 

   /   

 summitchairs.co.uk  

  /   

Operating instructions
Impact IM21 & IM31 Executive Task Chairs

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