Expert Insight: Common Mining Equipment Fault and Solution

One common issue faced by operators of the Atlas Copco Scooptram ST14 (a classic piece of **mining equipment**) is a loss of hydraulic brake pressure.

Fault: Intermittent or complete loss of braking force on the front or rear axle, often associated with the accumulator pressure dropping too quickly. This can lead to the machine engaging the emergency brakes prematurely or having insufficient braking power during heavy loads, a critical safety concern.

Diagnosis and Solution: This is often due to a failure in the brake pressure charging system. Key inspection points include the PRESSURE SWITCH 5112319864, the accumulator charging valve, and the associated plumbing. If the accumulator bladder has failed, the system cannot maintain the required pre-charge pressure. However, frequently, the fault lies in the hydraulic circuit: either a leaking check valve or a worn **BRAKE DISC** (like part numbers 5112319707 or 5112319700) causing excessive fluid consumption upon pedal application. The solution involves checking the system pressure with specialized tools, replacing the faulty pressure switch or accumulator, and ensuring all SEAL KITS 5112320134 and O-Rings (O-RING 5112319458) are fully intact to maintain system integrity.