Office Chair Maintenance

Office chair maintenance requires targeted handling based on the specific type of fault. Here are common maintenance scenarios and operational steps:

I. Maintenance of the backrest gliding mechanism of the Sihoo C500 Second Generation Deluxe This fault is usually caused by loose components in the back cover or cup holder. During maintenance, first pry open the shell from the lower edge of the backrest cover to expose the internal structure, and then use a screwdriver to remove the 5 fixing screws. After removing the screws, take down the aluminum alloy cup holder and check if the gliding mechanism is stuck or worn. If there is foreign matter blocking it, clean the track; if components are damaged, replace the corresponding parts. Pay attention to the screw specifications during operation to avoid unstable installation due to mixed use.

II. Repair of office chair tilting One-sided tilting of the chair is often caused by damaged casters or an uneven floor. First, place the chair upright or upside down and observe whether all the casters are in contact with the ground. Check the wheels for any signs of breakage, deformation, or wear. If damaged wheels are found, purchase a caster set of the same model for replacement: Pull out the old wheels directly by hand, or use a flat-head screwdriver inserted into the gap between the wheel axle and the base as a lever for assistance in removal; spray a small amount of WD-40 lubricant into the base socket to reduce friction; align the new wheels with the socket and tap them vertically with a rubber mallet until fully embedded. Finally, test the stability of the chair to ensure there is no wobbling.

III. Troubleshooting of hydraulic rod issues Problems with the hydraulic rod manifest as an inability to lift or lower the chair or strange noises, and require maintenance based on different situations:

1. Seal failure: If the chair has difficulty lifting or lowering, it may be due to aging of the internal sealing rubber ring. Open the connection between the hydraulic rod and the seat, remove the damaged rubber ring and replace it with a new one. Ensure the rubber ring is flat and not twisted during installation.
2. Valve failure: A stuck control valve can cause uncontrolled lifting or lowering. Try cleaning the inside of the valve with a cotton swab dipped in cleaning agent. If this is ineffective, replace the valve with a new one.
3. Insufficient lubrication: Strange noises are often caused by dryness in the moving parts. Drip 3-5 drops of special lubricating oil onto the surface of the hydraulic rod piston rod and repeatedly lift and lower the chair more than 10 times to allow the lubricating oil to fully penetrate.
4. Loose components: Check the connecting screws between the hydraulic rod and the base and the seat, and tighten them one by one with a wrench to avoid strange noises or unstable lifting or lowering due to looseness.

Maintenance safety tips: Place the chair on a stable surface before operation to avoid tipping over during maintenance; if disassembling the hydraulic rod or dealing with high-pressure components, it is recommended to wear protective gloves; those without maintenance experience are advised to contact professionals to prevent risks such as hydraulic rod bursting due to improper operation.