How to Solve the Problem of Noisy Handcart Wheels?

[Nolan]

Here are the solutions for noisy handcart wheels: 1. Method 1: The sound produced by the rear wheel shock absorber spring can be resolved by spraying lubricant. 2. Method 2: If sand or debris has entered, it can be treated with a release agent. Below is extended information on the differences between lubricating oil and lubricant: 1. Different classifications: Lubricating oil is divided into paraffinic, intermediate, and naphthenic base oils; lubricants are categorized into oily liquids, semi-solid greases, and solid lubricants. 2. Different functions: Lubricating oil primarily serves to lubricate, assist in cooling, and act as a buffer; lubricants are used to reduce the frictional resistance of friction pairs and slow down their wear. 3. Different characteristics: The basic properties of lubricating oil include general physical and chemical properties, special physical and chemical properties, and simulated bench tests; in mechanical equipment, most lubricants are distributed to the parts that need lubrication through a lubrication system.