HWS Zenki Series User manual

User Guide
Zenki
®
Good ergonomics at work
Congratulations on
the purchase of your new
Zenki Chair.
All Zenki products are designed to help
users achieve stress free working postures
but even the best ergonomic chair in the world
can’t do everything for you.
Spending just a few minutes getting to know your
new chair and thinking about the way you sit
will make a huge difference to how much
you will enjoy this product.
That’s why we’ve written this
short guide to help you achieve
the very best experience.
®

Setting your chair up …
In order to achieve the very best performance from your Zenki Chair
please follow the Set Up instructions in the order published.
1. Seat Height
2. Seat Depth
3. Back Angle
4. Back Height
5. Seat Pivot / Free-Float
6. Body Weight Tensioner
7. Reactive Lumbar Support
Options:
8. Multiway Arms
9. Neck Support
If you have any questions please do not hesitate to contact your supplier or contact us
direct at [email protected]

1. Seat Height
Ideally your hips should be
slightly higher than your knees in
order to promote good posture.
When your shoulders are relaxed
and elbows are at right angles,
your forearms should be just
above the surface of the desktop,
parallel to the floor.
To alter the seat height lift the
lever at the front right side as
shown and release when at
desired height.
LIFT

2. Seat Depth
Your bottom should be at the
back of the seat with roughly
three fingers’ gap between the
front of the seat and the back of
your knees.
This will ensure adequate thigh
support without obstructing leg
movement or lower leg
circulation.
To alter the depth, lift the lever at
the rear left side as shown and
slide seat to desired position.
Release lever to lock in position.
LIFT

TURN (Please note the knob rotates in both
directions and alternates the
lock/unlock function).
3. Backrest Angle Adjustment
To fix the back rest angle, rotate
the knob by one click to unlock
then move the backrest to your
desired angle.
You can lock the back position by
rotating the knob one more click.
If you require the chair to operate
in Free-Float mode leave the back
rest unlocked (in the first
position).
The tension is automatically set
by the weight of the user.
For the very best effect, use
together with the seat tilt also in
Free-Float mode. (see opposite)

PULL UP
4. Back Height
Lock the back rest in a vertical
position. When seated, grasp the
sides of the backrest and raise
one click at a time until
comfortable.
The Zenki Chair features a 7-
position ratchet system.
To reposition the back, lift fully to
the top, lower to the bottom to
re-engage ratchet and raise again
to the desired height.
The lumbar curve of the back rest
should fit into the small of your
back to help maintain the natural
‘S’ shape of the spine.

(Please note the knob rotates in both
directions and alternates the
lock/unlock function).
5. Seat Pivot (& Free Float)
The seat is locked/unlocked by
rotating the knob as with the back
rest (step 3).
Having both the seat and back rest
unlocked together will provide the
full Free-Float experience.
The chair reacts to your centre of
gravity and helps promote stress-
free posture with continuous
movement.
If you prefer you may lock the
seat when the desired angle is
achieved.
Seat only unlocked
Seat & back rest unlocked together
TURN

TURN
Kg
+/-
6. Body Weight Tension
In the Free-Float mode the
resistance of the mechanism is
set automatically by the weight
of the user.
This resistance can be increased
to give a more controlled feel if
desired.
The tension adjustment handle is
located at the front right side of
the seat.
Twist clockwise to increase
tension and anti-clockwise to
reduce.

PRESS
7. Reactive Lumbar Support
You can adjust the level of support
for the sacral,lumbar and lower
thoracic areas of the spine by
pumping the inflator bulb located
on the outer back rest.
The triple air cell automatically
balances out to mirror your
natural spinal curve.
If necessary reposition the
backrest height to maximise
comfort.
To deflate the air cell press the
valve button on the neck of the
the pump bulb. Twist button to
lock.

LOOSEN
PRESS
8. Multiway Armrests (Optional)
The armrests should touch the
underside of your forearms when
your shoulders are relaxed and
elbows are at right angles.
This will avoid stress in the neck,
shoulders and upper limbs.
To adjust the height, press the
trigger on the underside of the arm.
For width adjustment loosen the
handle, slide arm to the desired
width then re-tighten the handle to
set.
The arm pads are free float and can
be moved in/out to/fro and also
turned inwards (see graphic)
Height Adjustable Arms
Width Adjustable Arms
Depth Adjustable Pad
Width Adjustable Pad
Twist Top Pad

9. Neck Support (Optional)
Alter the height by grasping the
pad and raising or lowering to
desired height.
Next, move the articulated
bracket so that the pad is in
contact with the back of the
head.
Finally, rotate the angle of the
pad so that the bottom of the
pad nestles into the nape of the
neck and the desired level of
support is achieved.
ROTATE

01639 844500
[email protected]
www.healthyworkstations.co.uk
Zenki
®
Good ergonomics at work