Backrest Tilt Angle Adjustment

Push the backrest angle adjustment lever completely forward and lean against back until the desired angle is achieved ,and then return the lever to the original position to lock at an ideal angle.There are 4 positions with a 25º range.

Backrest angle adjustment can reduce the pressure on the spine. 
Backrest Quick or Slight tilt Tension Adjustment

Pull the lever outwards,open the tilt tension adjustment handle, and turn it forward or backward into a desired tension for quick tilt tension adjustment or close the handle and turn it forward or backward for slight tilt tension adjustment,and then close the handle and push the lever inwards to the original position to fix it.

The synchro mechanism is ergonomically designed to enhance comfort and reduce strain.The back-to-seat adjustment/tilt is 3:1 ratio. 
Backrest support Frame  Angle Change Lumbar Support Height Adjustment

A. While sitting and leaning against the backrest,the angle of backrest support frame will change automatically to offer completely support to one's body. 
B. When tilting,the backrest will alter its angle accordingly, which ensures full touch and support to the body. 

A. Hold the lumbar support upwards or downwards to adjust the height of it.The adjustable distance is 3.54". 
B. Suitable height of the lumbar support would bring more comfort. 
Armrest Height Adjustment

Press the two-sided armrest height adjustment buttons to raise or lower the armrests.There are 8 positions with 3.15" range. 

Recommended armrest positions: Allow arms to rest comfortably on the armrest at a 90º angle with the armrest 1" higher than the elbow. 
Arm Pad Swiveling Angle Adjustment

Swiveling angle adjustment:Three arm pad positions,18º range for each position is achieved by turning the arm pads outwards or inwards. 

The best angle could be reached when the arms can rest naturally on the arm pads while working.
Arm Pad Width Adjustment  Arm Pad Forward and Backward  Adjustment

Width adjustment:hold the arm pads outwards or inwards into desired width of the arms.There is 1.57"range adjustment totally.

Forward and backward adjustment: Push the arm pads forward or backward to a desired depth.The range for it is about 1.38". 
Seat Height Adjustment

Push the height adjustment lever backward and hold it while raising or lowering the seat to change the seat height.When the lever is released,the seat height is fixed.

Since a incorrect seat height contributes to back fatigue,it is recommended that the angle of knees is slightly less than 90º and feet are level with the floor.
Seat Depth Adjustment

Pull the seat depth adjustment pull to adjust the seat depth (The approximate range is 1.97"). when the pull is released,the position will be fixed.

Ideal depth is achieved when the upper legs are on the seat,the lumbar area is in touch with the back of the chair,and the back of knees does not touch the edge of seat. 
Seat Gradient Adjustment

A. The gradient of seat can be adjusted by turning the gradient adjustment lever to change the angle of the seat.The adjustable range is 0.79". 
B. Different gradient would meet
your different needs with full 
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