Office Chair/Stool Broken
The repair methods for a broken office chair or stool need to be selected based on the specific problem. Here are some common issues and their corresponding solutions:
Tilted to One Side
If the chair tilts to one side, first check the condition of the wheels. Step 1: Place the chair upright and upside down, observe whether the wheel feet make even contact with the ground, and check for damage to the wheel feet when upside down. If the wheels are damaged, purchase matching new wheels for replacement. If it is difficult to buy them separately, replace the entire wheel foot assembly. Step 2: When removing the old casters, you can pull them out directly by hand or use a flat-head screwdriver to assist in prying. For a very small number of wheel feet fixed with screws, use a screwdriver to loosen the screws and then remove them. Step 3: Apply a small amount of spray lubricant or Vaseline to the wheel foot sockets on the chair base to reduce friction resistance. Step 4: Tap the new casters into the sockets with a rubber mallet, ensure they are firmly installed, and then test whether the wheels rotate smoothly. If the chair still tilts after replacing the wheels, further check whether the seat plate is deformed or if the connections are loose.
Sinking Problem
When the chair height cannot be fixed and continues to sink, it can be solved by physically restricting the movement of the cylinder. Method 1: Using a Hose Clamp Slide down the plastic skirt at the bottom of the chair, adjust the chair to the desired height, and wrap a hose clamp (or an adjustable metal clamp) around the cylinder. If the grip of the clamp is insufficient, wrap a rubber band around the surface of the cylinder to increase friction, tighten the clamp, and then test whether the height is stable. If the height is inaccurate, loosen the clamp and readjust its position. Method 2: Using PVC Pipe Measure the diameter and length of the cylinder, purchase a PVC pipe with an inner diameter slightly larger than the cylinder, and use a saw to split the pipe lengthwise into two halves. Place the split pipe over the cylinder, and use the rigidity of the pipe to restrict the expansion and contraction of the cylinder, thereby fixing the chair height. This method is suitable for cases where the cylinder is severely damaged and cannot be repaired with a hose clamp.
Backrest Cannot Stay Upright
The inability of the backrest to stay upright is often due to a hydraulic system failure. Step 1: Lay the chair on its side, check the transmission components at the connection between the hydraulic rod and the backrest, and focus on observing whether the fixed screws at the pivot points are loose or damaged. Step 2: If the pivot screws are of a non-standard type (such as special threads), replace them with standard No. 10 screws. When installing, ensure that the screws do not interfere with the movement range of the hydraulic rod. If the screw length is insufficient, adjust the gap by adding washers. Step 3: After reassembly, test the backrest adjustment function. If it still cannot stay upright, check whether there is oil leakage or jamming inside the hydraulic rod, and replace the entire hydraulic system if necessary.
Precautions: Before repairing, make sure the chair is unplugged (if it is an electric chair) and wear protective gloves. If it involves disassembling the hydraulic system, it is recommended to be operated by a professional to avoid injury from high-pressure components.
