一台山推SD42-3型推土机出现油温高、无右转向故障。该机油温上升快而水温较正常,据经验判断,可能是变矩器壳体内机油太多所致。拆卸变矩器发现滤芯严重堵塞,积存大量机油。更换后桥箱机油及滤芯、终传动及工作油箱机油后重新试机,开始无右转向,接着无左转向。 A Shantui SD42-3 bulldozer oil temperature appears high, no right turn fault. The oil temperature rise faster and the water temperature than normal, according to the experience to judge, may be due to excessive torque converter shell oil. Disassemble the torque converter filter found serious blockage, accumulation of large quantities of oil. Replace the rear axle box of oil and filter, the final drive and work tank oil again after the trial, began without right turn, followed by no left turn.