Oil-water heat exchanger burst hydraulic system analysis and prevention

Oil-water heat exchanger burst hydraulic system analysis and preventionMarch 10, 1994, I segment wind. The third type of locomotive No. 3413 PDI minor repairs, the effect of high temperature after hydrostatic drive system sends harsh noise and is accompanied by vibrations. After examination, the oil tank in oil, other ministries no unusual initial recognition is Hydraulic pipe fittings caused by lack of oil. Opening up the oil from the oil, the noise and vibration weakened; stopped after refueling, noise and vibration restored to the same as the original. After about 2 minutes, hot water heat exchanger system hydrostatic axial weld rouge body burst (Figure 1). After careful examination, found that the fuel tank has a nozzle on the M10 bolts, hexagonal head down (Figure 2). Remove the fuel tank bolts, replace oil heat exchanger newcomer machine, high hydrostatic system is working properly. After analysis, it is because the cleaning of the magnetic filter, the assembly process, the tank will fall due to a M10 bolt. Bolt fell on the nozzle throat, making it most clogged throat section