Removal of Office Chair Foot Nails

The method for removing the foot nails (five-star base) of an office chair should be selected based on the specific structure. Common situations and steps are as follows:

I. With Flat Washer and Snap Ring

If there is a flat washer and snap ring at the bottom of the central column of the five-star base, the snap ring structure should be dealt with first. Operation Steps:

1. Place the chair upside down steadily on the ground to avoid damage caused by rolling or shaking.
2. Observe the bottom of the central column to confirm the position of the flat washer and snap ring (usually a metal sheet or ring structure).
3. Use tools such as tweezers or needle-nose pliers to carefully grip and remove the snap ring, being careful not to let it fly away.
4. After the snap ring is removed, simply pull out the old five-star base upwards. Key Points: The snap ring is the core component for fixing the five-star base. After removal, the structure becomes loose, so the operation should be gentle to prevent the loss of parts.

II. Without Flat Washer and Snap Ring

If the five-star base is connected to the steel column through a conical press fit, external force should be used for separation. Operation Steps:

1. Also place the chair upside down to ensure a stable operating surface.
2. Observe the connection between the five-star base and the steel column to confirm that it is a conical press-fit structure (without additional fasteners).
3. Use a hammer to lightly tap the connection area perpendicular to the contact surface to avoid lateral force causing deformation of the steel column.
4. Continue tapping until the five-star base becomes loose and can be removed. If there is significant resistance, rotate it while tapping. Key Points: The tapping force should be moderate. Too light a force will not separate it, and too heavy a force may damage the steel column or the chair foot.

III. Other General Methods

For complex structures or special models, refer to the following steps:

1. Shaking and Lifting Method:
   • Step on the five-star base frame to fix it, and hold both sides of the seat cushion with both hands. Shake it left and right and lift it upwards repeatedly until it becomes loose.
   • If it is ineffective, change the gripping position (such as the front and back sides) and repeat the operation.
2. Tool Disassembly Method:
   • Remove the seat cushion and armrests to expose the internal structure.
   • Apply lubricating oil at the connection between the command rod and the five-star base, shake it, and then use a wrench to loosen the nut and remove the screws.
   • Invert the chair, tap the connection between the wheel axle and the five-star base with a rubber hammer, loosen the fixing nut, and then remove the screws.
   • Find the fixing component between the five-star base and the hydraulic column, loosen the nut, and remove the screws.
3. Special Method for the Be氪 Office Chair BC03Q Deluxe Edition:
   • Invert the chair on a higher platform and tap the five feet of the five-star base upwards with a rubber hammer to separate them from the gas spring.
   • Tap the base plate to separate the gas spring from the base.
   • Simply pull off the wheel feet to complete the disassembly.

Precautions: Wear protective gloves before operation to avoid metal scratches. If the structure is rusted, first use a cleaner to remove the dirt and then apply lubricating oil. After disassembly, keep the parts properly to prevent loss.