1. SEAT HEIGHT
To Raise the chair in height lift this lever whilst unseated. To Lower the chair in height lift this
lever whilst seated.
2. BACK RAKE ADJUSTMENT
By raising this lever up the chair back rest will be in free float. When in free float you can
then lean against the back rest to alter the angle of the back. Once you have found a
position you are comfortable with, push down on the lever to lock it off.
3. ASYNCHRONOUS SEAT ANGLE ADJUSTMENT (MM-Line B Only)
By raising this lever up the chair mechanism will be in free float. To lock the synchronous
mechanism simply find a position you are comfortable with and push down on the lever to lock it off.
4. ERGOLAST® WEIGHT TENSION CONTROL (Optional Feature on MM-Line B Only)
By turning the knob anti-clockwise when seated you will increase the level of resistance to the
asynchronous action of the chair and by rotating it clockwise, the resistance is reduced.
Adjust to suit your body weight.
5. SLIDING SEAT MECHANISM (Optional Feature)
Using either hand release the mechanism by gently lifting the fron under seat bar.
This will enable you to slide the seat forwards and backwards to suit your upper leg length.
By releasing the bar this will lock the seat pan in your chosen postion.
6. BACK REST HEIGHT ADJUSTMENT
Turn this wheel (1/2 to 1 turn) in anti-clockwise direction to loosen the back rest, then with
your free hand raise or lower the back rest to the desired height and lock it in place by
turning this wheel in a clockwise direction.
7. ARMREST HEIGHT ADJUSTMENT *
Press and hold this button, raise or lower the arm rest to the desired and release the button.
8. ARMREST WIDTH AND DEPTH ADJUSTMENT **
Loosening these locking levers (½-1 turn) will enable you to adjust the armrest width by swiveling
the pad inor out and in depth by sliding the pad back and forth. Re-tighten the locking lever
when you have found a position that you find supportive and comfortable.
GRAHL MM-LINE & MM-LINE 'B' - USER INSTRUCTIONS
