Office Chair Always Tips Over

If an office chair always tips over, it needs to be addressed according to the type of chair. Here are specific solutions:

Ordinary Office Chair Leaning to One Side

• Check the wheels: Place the chair upright and ensure that each wheel foot is in contact with the ground. Invert the chair and check for any damage to the wheel feet, such as bending or breakage. If the ground is uneven, the wheels may not all be in contact with the ground when the chair is unoccupied, causing it to lean to the lower side when sat on.
• Replace the wheels: It is difficult to purchase replacement wheel feet individually for damaged wheels. It is recommended to buy a new set of matching wheels. You can contact the chair manufacturer for the model number to place an order, or remove an old wheel and take it to an office supplies store to find a matching replacement set. Pay attention to matching the shape and size of the wheel axles.
• Remove the old casters: Grasp the caster wheel and the bottom of the chair firmly with your hands and pull hard. The caster may pop out. If it cannot be pulled out by hand, insert the blade of a flat-head screwdriver into the small gap between the wheel foot and the chair contact point. Operate it slowly back and forth, and pull the wheel foot again after pulling it out about 1 centimeter. A very small number of casters are fixed with screws. If you see the screw head, use a screwdriver to loosen the screw and remove the caster.
• Lubricate the sockets: Apply a small amount of spray lubricant, such as WD-40, to each socket on the chair base. Insert the straw into the spray nozzle and insert it into each socket for a quick spray. Half a second for each socket is sufficient. If you do not have a lubricant spray, you can apply a pea-sized amount of Vaseline to the axle of each wheel.
• Install new casters: Use a rubber mallet to knock each caster into its socket on the chair. Align the caster rod with the intended base. First, push it gently with your hand. If it does not fit into place, gently tap the caster with a rubber mallet until the rod is fully inserted into the base.
• Test the chair: Turn the chair upside down and sit on it to test. If it is stable and rolls evenly without leaning to one side, the job is done. If it still leans, continue to check if the seat plate is damaged.

Executive Chair Always Reclining Backwards

• Adjust the backrest lock: The backrest locking mechanism of most executive chairs is located at the junction of the seat cushion and the backrest, which may be a small lever on the side or a bottom adjustment knob. Adjust it in the correct way to keep the backrest fixed without wobbling.
• Reinforce the chassis structure: If adjusting the lock is ineffective, check the fixed screws on the chassis. Tighten all loose screws, especially the main load-bearing bolt in the middle of the chassis. If the five-claw base is slightly deformed, gently tap it straight with a rubber mallet.
• Replace faulty parts: If the above adjustments are ineffective, there may be a fault in the core parts, such as a broken spring in the lock or a worn and deformed lock catch on the chassis. These parts need to be replaced accordingly.
• Other possible causes and solutions: Check if the legs, lifter, the black metal frame above the lifter, the wheels, the wooden board under the seat cushion, etc., of the executive chair are damaged. If so, they need to be repaired or replaced.