Disassembly and Assembly of Leather Office Chairs

The disassembly and assembly of leather office chairs can be carried out according to the following steps, with attention to tool selection and operational details:

I. Disassembly Steps

1. Caster Disassembly

   • Grasp the wheel firmly and pull it outward. If it is stuck, insert a flat-head screwdriver or a crowbar into the gap between the wheel and the chair leg to pry it open.
   • If the wheel is entangled with hair or debris, first lay the chair down, use long scissors or curved tweezers to clean the debris, and then repeat the operation.

2. Gas Lift Disassembly

   • Invert the chair and tap the lower part (red or silver metal part) where the gas lift connects to the five-star base with a rubber mallet, avoiding the hydraulic oil area (green or black).
   • If the connection is too tight, apply some cooking oil to lubricate the joint and let it sit for 1-2 hours before tapping again. Do not use a metal hammer or wrench to pry it open, as this may damage the seal.

3. Seat Cushion Disassembly

   • After removing the gas lift, invert the chair and tap evenly around the metal rim at the bottom of the seat cushion with a rubber mallet, then pull the base upward with your hands to loosen it.
   • Use a screwdriver to remove the screws connecting the seat cushion to the chassis, tap the metal chassis lightly with a hammer, while holding the hydraulic rod with one hand and stepping on the chassis with your foot to completely separate the two.

4. Backrest Disassembly

   • Operate according to the fixing method: Most backrests are fixed with screws. Use a screwdriver to remove the screws at the connection between the backrest and the seat cushion.
   • If the backrest is adjustable, loosen the adjustment knob before separating the parts.

II. Assembly Steps Follow the reverse order of disassembly, that is, assemble the backrest first → seat cushion → gas lift → casters, ensuring that each step is firmly connected.

III. Precautions

1. Tool Preparation

   • Essential tools: Rubber mallet (to avoid damaging the paint with a metal hammer), Phillips/flat-head screwdrivers, wrench, large scissors or crowbar.
   • Recommended tools: Magnetic screwdriver (to prevent screws from falling), marker pen (to mark the positions of parts).

2. Operating Environment

   • Choose a spacious and flat space, and lay soft cloth or cardboard on the ground to prevent scratching the leather surface.

3. Marking and Recording

   • Take photos of the connection parts with your mobile phone before disassembly, or mark the positions of screws and buckles with a marker pen to avoid installation errors.

4. Special Part Handling

   • If the connection between the gas lift and the base is too tight, tap the bottom edge lightly to loosen it, and do not tap the center directly.
   • It is recommended to use a magnetic screwdriver to remove the screws of the armrests; after removing the universal wheels, clean the hair and dust on the wheel axles to ensure smooth sliding after installation.

IV. Safety Tips

• Wear gloves during operation to avoid scratches or pinches.
• The gas lift contains high-pressure gas. Non-professionals should not disassemble or modify it randomly to prevent the risk of explosion.
• If the chair has been used for a long time or the parts are aged, it is recommended to contact after-sales service to replace new parts before disassembly and assembly.