401 Office Chair

The installation steps and material descriptions for the 401 office chair are as follows:

Installation Steps

1. Assembly of the Support Frame and Crossbars

   • Pay attention to the assembly order of screws and crossbars to avoid structural instability due to improper operation. When installing the bottom part, be particularly careful with the curved sections to prevent breakage from excessive force or incorrect direction. Align the support frame with the dowel holes and insert it, ensuring accurate positioning before tightening the screws to ensure overall stability.
   • If the support frame is made of metal, check the fit between the screws and the holes to avoid slippage or loosening; if it is made of solid wood, be mindful of the expansion of the dowels to prevent over-tightening, which could cause the wood to crack.

2. Seat Cushion Installation

   • The seat cushion must be oriented correctly in terms of front, back, and size to ensure compatibility with the support frame. After proper placement, secure it with self-tapping screws through the screw holes at the bottom, paying attention to the depth of the screws to avoid penetrating the cushion surface and affecting the user experience.
   • If the cushion is made of soft materials (such as foam or leather), adjust its position before securing it to ensure no wrinkles or misalignment; if it is made of hard materials (such as solid wood or plastic), check the fit with the support frame to avoid excessive gaps that could cause wobbling.

Materials and Structure

• Solid Wood Material: Some 401 office chairs feature solid wood frames, which offer natural textures and good load-bearing capacity. However, they require protection against moisture and cracking. Chairs made of solid wood are generally heavier, so care should be taken to avoid bumps when moving them.
• Other Materials: Some models may combine metal (such as the support frame) with soft materials (such as the seat cushion and backrest) to balance durability and comfort. For the metal parts, check the firmness of welds or connections; for the soft parts, pay attention to the uniformity of the filling and the wear resistance of the surface material.

Precautions

• Before installation, carefully read the instructions to confirm the number of parts and the tools required (such as screwdrivers and wrenches).
• If you encounter mismatched screw holes or missing parts, contact after-sales service promptly to avoid safety hazards caused by unauthorized modifications.
• During daily use, avoid overloading or violent shaking to extend the chair's lifespan.

Currently, publicly available information does not mention detailed design parameters (such as dimensions, weight capacity) or special features (such as adjustable height, rotation) of the 401 office chair. It is recommended to obtain complete product specifications through official channels.