What is the reason for the soft brake pedal and poor braking performance of a loader?
2 Answers
It may be due to aging brake pads. Here are the specific details: Newly replaced brake pads: If they are newly replaced, the surface of the new brake pads is relatively flat, while the contact surface on the brake disc is very uneven. This creates a phenomenon similar to "placing a bar of soap on a washboard." The contact area between them is very small, and when the brakes are applied, the deformation of the brake pads is significant, much like pressing hard on the soap. The ridges of the washboard are very hard, causing the contact surface of the soap to deform. At this point, the so-called "poor braking" situation that often occurs will arise. Therefore, new brake pads need to be broken in to increase the contact area between the brake pads and the brake disc, thereby improving braking performance. Worn-out brake pads: If they are old, since brake pads are consumables, they will gradually wear out during use. When they wear down to the limit, they must be replaced; otherwise, braking performance will be reduced, and safety hazards may arise. Therefore, brake pads should generally be inspected every 5,000 kilometers, and if the friction material is found to be less than 1 millimeter thick, they need to be replaced.
I've noticed that the issue of soft brakes and poor stopping power in loaders is quite common, likely related to brake fluid. If the fluid level is too low or the fluid has become dirty after prolonged use, the pressure can't build up properly, resulting in a spongy brake pedal that lacks responsiveness. Another possibility is air bubbles entering the hydraulic system – I once encountered this while operating a loader, caused by either overdue fluid replacement or accidental air ingress. Additionally, severely worn brake pads or discs, or significant issues with the brake drum, can all lead to ineffective braking. Oil leaks in hydraulic lines are even more dangerous – immediately check the connections and oil circuits. Safety comes first; accidents can be devastating. My advice is to park the vehicle securely and have it inspected at a reliable repair shop. Don't forget to check the brake system every six months and replace fluids and parts regularly – it saves a lot of trouble.
