Office Chair Adjustable Fixed

The fixation of an adjustable office chair requires proper installation of core components such as the gas lift, base, and backrest. Here are the specific steps:

1. Gas Lift Installation The gas lift is the core component for the height adjustment function and needs to be vertically inserted into the center hole of the chair base (star base). During installation, ensure that the gas lift is perfectly aligned with the hole in the chair base to avoid tilting, which can cause height adjustment issues or safety hazards. For example, the installation instructions for the B100pro clearly state to "insert the gas lift into the center hole of the chair base," and the tutorial for the Livorno M40 also emphasizes "placing the gas lift into the center hole of the star base." If the gas lift is not securely fixed, it may lead to the chair's height adjustment malfunctioning or wobbling.

2. Base and Seat Cushion Connection The base is a key structure that supports the seat cushion and transfers the lifting force. It needs to be fixed to the seat cushion with screws. For example, the B100pro uses four T6-M8*20 screws to connect the base and the seat cushion. Although the Livorno M40 does not specify the screw specifications in detail, it lists "installing the chair seat" as a key step. During installation, check if the screws are tightened to avoid seat cushion tilting or abnormal height adjustment due to looseness.

3. Backrest and Base Fixation The backrest needs to be connected to the base with screws or pins. The B100pro uses four T6-M8*20 screws to fix the backrest, while the Livorno M40 achieves fixation by "slanting the backrest into the pin on the chair seat and securing it." If the backrest is not securely fixed, it may wobble or come off during use. It is necessary to check if the screw holes are aligned or if the pins are properly secured.

4. Overall Assembly and Function Testing Place the upper part of the chair (including the backrest, seat cushion, etc.) onto the gas lift and ensure that the height adjustment function works properly. After installation, test if the height adjustment is smooth and check if all connections are stable. If there are footrests or armrests, fix them according to the instructions. For example, the footrest of the B100pro needs to have its screws tightened with an Allen wrench, and the Livorno M40 requires adjusting the armrest height and securing it.

Precautions:

• Before installation, check the parts list to ensure that all components such as screws and the gas lift are complete to avoid interruption of the installation process due to missing parts.
• When inserting the gas lift, keep it vertical to avoid damaging the internal structure or causing safety hazards due to tilting.
• If resistance is encountered during installation, stop the operation and check if the holes are aligned. Do not force the assembly.
• Follow the product instructions for specific operations, as different models of chairs may have installation differences.