Shangcai Office Chair Installation
The installation of office chairs in Shangcai can be carried out according to the following general steps:

Check components and tools Before installation, ensure that all components are complete, including the backrest, armrests, seat cushion, bottom bracket, screws, chair legs, casters, gas lift, base, headrest (if any), etc. Also, prepare tools such as screwdrivers. It is recommended to use short or medium-length screws first, which can save installation time. If there is a deviation in the hole positions, use a screwdriver to slightly adjust the screw hole positions.
Install from the bottom up step by step
- Chair legs and casters: Install the casters one by one into the corresponding holes on the chair legs to ensure that the catches are secure. After installation, insert the gas lift vertically into the center hole of the chair legs, keeping it vertical to avoid wobbling during subsequent use.
- Base and seat: Fix the base to the bottom of the seat with screws, or use another methodโplace the seat cushion upside down, align the figure-eight-shaped holes of the iron bracket with the holes on the seat cushion, and manually screw in the screws. If there is a deviation in the hole positions, use a screwdriver to assist in the adjustment.
- Connection between the backrest and the seat: Fix the backrest to the seat with screws, or use another methodโalign the holes on the backrest with the holes on the armrests, place the backrest inside the armrests, first pre-drill holes with a screwdriver, test the size of the screw holes, and then screw in medium-sized screws.
- Base installation: Insert the installed seat part vertically into the top of the gas lift to ensure a secure connection.
- Armrests and headrest: Align the left and right armrests with the holes on the edge of the base for installation. Since the screw holes are tight, it is recommended to pre-drill holes with a screwdriver or test the screw fit first. Finally, install the headrest (if any) and adjust it to the appropriate height.
Precautions
- Safe operation: When screwing, rotate with your fingers to avoid injury from pressing against the palm of your hand. If disassembly is required, first separate the backrest, raise the gas lift to the highest position, hold the seat with one hand, press the lift lever with the other hand, and shake to remove it. When disassembling the gas lift, turn the chair legs upside down and tap them out with a rubber mallet or a wooden board as a cushion.
- Tool selection: It is recommended to use the matching screwdriver first to avoid screw slippage caused by using electric tools. If there is a deviation in the hole positions, do not force the screws in. Adjust them before fixing.
- Stability check: After installation, check whether the connections between all components are secure. Shake the chair to confirm that there is no looseness. Adjust the gas lift to test whether the lifting function is normal.
Tip: If you encounter hole deviations or mismatched screws during the installation process, you can contact after-sales service to obtain special tools or guidance. Avoid self-modification to prevent structural damage.



