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我公司一台ＣＡＴＤ８Ｒ推土机，工作过程中出现变速器油温升高报警且工作无力的故障。待温度降低后再试，工作不到３０ｍｉｎ．变速器油温就急剧升高到１４０℃以上，同时蜂鸣器报警。经检查．无机械异响、电路正常，因而初步确定为液压系统有故障。 导致变速器油温高的原因可
My company a CATD8R bulldozer, the transmission of oil temperature during work appears to alarm and work weakness fault. Try to reduce the temperature to work less than 30min. Transmission oil temperature rose sharply above 140 ℃, at the same time buzzer alarm. After inspection. No mechanical abnormal noise, the circuit is normal, and thus initially identified as hydraulic system failure. Cause the transmission oil temperature may be high