Office Chair Assembly Illustration

The assembly steps for a five-star-base office chair are as follows:

1. Install the five-star base and wheels
Insert the wheels into the holes of the five-star base. Some wheels may need to be screwed in by rotating. Apply a bit of force during installation to ensure stability. After installation, flip the five-star base so that the wheels face downward.

2. Install the gas lift and gas lift cap
Insert the gas lift into the central hole of the five-star base. Before installation, remove the protective cap at the top of the gas lift to avoid affecting its normal lifting and lowering function.

3. Attach the base to the seat cushion
Place the seat cushion flat on a clean surface. Confirm the orientation of the base (usually marked with front/back or left/right indicators). Use screws to fix the base to the seat cushion. Tighten all screws to prevent loosening.

4. Connect the seat cushion to the gas lift
Lift the seat cushion with the base attached and align it with the top of the gas lift, inserting it into the hole on the base. Ensure that the gas lift is vertically connected to the seat cushion to avoid instability during use.

5. Install the armrests
According to the marked armrest holes on both sides of the seat cushion, align and insert the armrests. Pay attention to distinguishing between left and right. Initially fix the screws but do not tighten them completely, leaving room for adjustment during the installation of the backrest.

6. Install the backrest
Place the backrest behind the seat cushion and align the connection holes of the armrests and the backrest. First, install the screws on both sides at the bottom of the backrest (do not tighten them yet), then lift the backrest and install the top screws. Finally, gradually tighten all screws to ensure a firm connection between the backrest and the armrests.

7. Install the armrest decorative caps
After checking that all screws are tightened, press or rotate the decorative caps onto the outer sides of the armrests to complete the aesthetic enhancement.

Precautions:

• Avoid using excessive force during installation to prevent damage to the parts.
• Confirm that the model of the gas lift matches before installation to avoid lifting and lowering failures.
• Tighten the screws of the backrest and armrests in stages to prevent installation deviations caused by unilateral force.
• After assembly, you can briefly sit on the chair to check the stability of all components, especially the smooth rotation of the wheels.

If referring to other types of chairs (such as computer chairs or office stools), the steps are similar but with some differences in details. For example, computer chairs may omit the step of installing the gas lift cap, and office stools may require the screws at the bottom of the backrest to be installed first. It is recommended to adjust the operation sequence according to the instruction manual of the specific model.