Office Chair Backrest Tutorial

The installation and adjustment tutorial for the office chair backrest is as follows:

Installation Tutorial

1. Installation of Chair Wheels and Five-Star Base: Insert each chair wheel into the assembly holes of the five-star base one by one, ensuring that each wheel is firmly connected. Then, flip the five-star base so that its bottom faces upwards.
2. Installation of the Pneumatic Rod: Align the thicker end of the pneumatic rod with the central hole of the five-star base and place it steadily inside, ensuring that the pneumatic rod is perpendicular to the five-star base and the centers are aligned.
3. Installation of the Seat Base and Cushion: Place the seat base on the cushion, align the four screw holes, and then easily screw in the four B screws 3-4 turns one by one. Then, tighten them one by one to ensure a firm connection between the seat base and the cushion.
4. Connection of the Cushion and Pneumatic Rod: Align the cushion with the pneumatic rod and insert it into the hole of the seat base, ensuring a firm connection between the cushion and the pneumatic rod.
5. Installation of the Backrest: Align the two sides at the bottom of the backrest with the armrest installation positions on both sides of the cushion and insert them. First, use two C screws to fix the bottom of the backrest from the bottom of the armrest bracket. Then, align the installation holes at the back of the backrest with those on the cushion bracket, and use two wrenches to lock the backrest and the cushion bracket together with D screws, ensuring that the backrest is firmly installed without any wobbling.

Adjustment Tutorial

1. Angle Adjustment: Adjustable office chairs are generally equipped with an adjustment handle, usually located on the right side of the seat. After sitting on the chair, find the adjustment handle, pull it, lean back slightly with your back, and release the handle to fix the angle. If you want to return to the original position, continue to pull the handle and apply a slight force with your back, and the chair back will spring back.
2. Backrest Reclining: The backrest of some office chairs can be reclined flat. Usually, there is a lever under the right armrest. Pulling the lever will recline the backrest flat.
3. Front-to-Back Rocking Adjustment: By rotating the black cylinder in front of the chair's pneumatic rod, you can adjust the amplitude of the chair back's front-to-back rocking according to your personal needs.
4. Angle Selection Suggestions: Depending on the style and performance of the chair, the reclining angles can be divided into 90°, 100°, 125°, and some can reach 155°. At 90°, the body is upright, which can protect the lumbar and cervical spine; at 100°, it is suitable for surfing the Internet, watching movies, or playing casual games, and can also protect eyesight; at 125°, it is used for taking a nap; at 155°, it is used for deep sleep, but it is not recommended for daily use.