【正文】 ...................................................................13第三章 ZL50 型裝 載機(jī)發(fā)動(dòng)機(jī)故障診斷與修復(fù) ...................................................................................19 起動(dòng)困難診斷與修復(fù) ....................................................................................................................19 發(fā)動(dòng)機(jī)在冬季起動(dòng)為什么更困難 ........................................................................................19 發(fā)動(dòng)機(jī)起動(dòng)時(shí)可以轉(zhuǎn)動(dòng)，不能起動(dòng)（無(wú)煙）的診斷與處理 ............................................20 發(fā)動(dòng)機(jī)熱起動(dòng)困難的診斷與處理 ........................................................................................21 發(fā)動(dòng)機(jī)起動(dòng)時(shí)，曲軸不能轉(zhuǎn)動(dòng)的機(jī)械故障診斷與修復(fù) ....................................................22 從排氣管排煙情況診斷發(fā)動(dòng)機(jī)故障與排除 ................................................................................24 發(fā)動(dòng)機(jī)起動(dòng)困難或不能起動(dòng)，排氣管大量排白煙的診斷與處理 ....................................24 發(fā)動(dòng)機(jī)起動(dòng)困難或不能起動(dòng)，排氣管大量冒灰白煙的診斷與處理 ................................24 發(fā)動(dòng)機(jī)起動(dòng)困難或不能起動(dòng)，排氣管大量冒黑煙的診斷與處理 ....................................25 發(fā)動(dòng)機(jī)低速正常且有短時(shí)高速，排煙過(guò)少的診斷與處理 ................................................26 發(fā)動(dòng)機(jī)低速正常但無(wú)高速，排煙過(guò)少的診斷與修理 ........................................................26 發(fā)動(dòng)機(jī)動(dòng)力不足，排灰白煙的診斷與處理 ........................................................................27 發(fā)動(dòng)機(jī)動(dòng)力不足，排濃黑煙的診斷與處理 ........................................................................28 發(fā)動(dòng)機(jī)動(dòng)力不足，排藍(lán)煙的診斷與處理 ............................................................................29 從速度和聲音診斷發(fā)動(dòng)機(jī)的故障與排除 ....................................................................................30 發(fā)動(dòng)機(jī)無(wú)怠速的診斷與處理 ................................................................................................30 怠速過(guò)高的診斷與處理 ........................................................................................................31 怠速不穩(wěn) ................................................................................................................................32 發(fā)動(dòng)機(jī)運(yùn)轉(zhuǎn)中突然熄火 ........................................................................................................33 發(fā)動(dòng)機(jī)運(yùn)轉(zhuǎn)中緩慢熄火 ........................................................................................................332 / 66 發(fā)動(dòng)機(jī)工作粗暴 ....................................................................................................................34 發(fā)動(dòng)機(jī)“游車” ....................................................................................................................35 發(fā)動(dòng)機(jī)“飛車”時(shí)的應(yīng)急措施及處理方法 ........................................................................37 發(fā)動(dòng)機(jī)抖動(dòng) ............................................................................................................................3發(fā)動(dòng)機(jī)不能熄火 ...............................................................................................................39 發(fā)動(dòng)機(jī)異響的故障診斷與排除 ....................................................................................................39 活塞敲缸 ................................................................................................................................40 活塞環(huán)異響 ............................................................................................................................41 活塞銷異響 ............................................................................................................................42 連桿軸承異響 ........................................................................................................................42 曲軸軸承異響 ........................................................................................................................44 拉缸響 ....................................................................................................................................44 發(fā)動(dòng)機(jī)著火敲擊聲 ................................................................................................................45 氣門腳響 ................................................................................................................................47 氣門彈簧響 ............................................................................................................................47 氣門挺桿異響 ......................................................................................................................48 凸輪軸響 ..............................................................................................................................49 正時(shí)齒輪室異響 ..................................................................................................................49 風(fēng)扇葉異響的診斷與處理方法 ..........................................................................................50 風(fēng)扇皮帶打滑響 ..................................................................................................................51第四章 ZL50 型裝載機(jī)發(fā)動(dòng)機(jī)的日常維護(hù)與保養(yǎng) ...............................................................................52 發(fā)動(dòng)機(jī)機(jī)油常見故障診斷與排除 ................................................................................................52 機(jī)油壓力突然過(guò)低的診斷與處理方法 ................................................................................52 機(jī)油壓力過(guò)低的診斷與處理方法 ........................................................................................53 機(jī)油壓力過(guò)高的診斷與處理方法 ........................................................................................55 機(jī)油消耗量過(guò)大的檢查與處理方法 ....................................................................................55 曲軸箱機(jī)油平面升高的診斷與處理方法 ............................................................................57 燃油箱的清洗 ................................................................................................................................57 燃油與機(jī)油混合故障的分析與排除 ............................................................................................58參考文獻(xiàn) ..................................................................................................................................................60致 謝 ....................................................................................