Sofa Office Chair Assembly

The assembly of sofa office chairs should be carried out according to standardized steps. There are differences in details among different models, and the core process is as follows:

I. Installation of Basic Components

1. Connection of Casters and Chair Legs: Insert each caster into the reserved holes on the chair legs (or base) one by one, ensuring that the buckles are fully embedded to prevent looseness. For some chair legs, install the dust covers first and then insert the casters.
2. Installation of the Gas Lift: Place the gas lift vertically into the center hole of the chair legs, ensuring verticality to avoid instability during subsequent use. For some models, install a dust cover on the top of the gas lift to prevent dust from entering the internal structure.

II. Connection of the Seat and Backrest

1. Fixing the Base Plate: Use screws to fix the base plate (the component that controls lifting and rotation) to the bottom of the seat. For some models, pre-screw the screws into the threaded holes of the base plate and then align and tighten them with the holes on the seat.
2. Installation of the Backrest: Align the backrest with the reserved holes on both sides of the seat, insert it, and then tighten the screws from the bottom or side of the seat (operate symmetrically on the left and right) to ensure a firm connection between the backrest and the seat.
3. Installation of the Side Covers: Align the side covers with the gaps on both sides of the backrest and press them down firmly until they are fully snapped in, covering the screw holes and enhancing aesthetics.

III. Overall Assembly

1. Connection of the Seat and Gas Lift: Insert the seat (with the installed backrest) vertically into the top of the gas lift, ensuring sufficient insertion depth to prevent it from falling off during use.
2. Installation of Armrests and Headrests: According to the model, use long screws to fix the armrests on both sides of the seat, and insert the headrest into the reserved holes at the top of the backrest (some require screw fixation).

IV. Precautions for Special Models

1. P9 Boss Sofa Chair_176: First, insert four short screws (do not tighten them) and tighten them one by one after they are all in place; insert the backrest directly into the seat and hand-tighten the long screws on both sides until fully fixed; align the cushion tray with the gas rod and insert it, and then adjust the backrest angle to a comfortable position.
2. Anda Seat Gaming Chair: Use an Allen wrench to unscrew the pre-installed screws on both sides of the backrest and then assemble it according to the normal steps to avoid screw interference with the backrest installation.

Tips: Check the parts list before assembly to ensure there are no missing parts. It is recommended to install from the bottom up (casters → gas lift → seat → backrest → armrests) for easy position adjustment. If disassembly is required, operate in reverse and pay attention to safety. For example, when separating the gas lift from the chair legs, you can shake it or use a rubber mallet to assist, avoiding direct hammering to prevent damage.