TDM3.2-020-300W0有些機手和修理工雖然領(lǐng)取了駕駛證或初級修理工等級證書,但對機械的構(gòu)造原理及維修知識仍然了解得很粗淺。維修時用扳手使勁擰轉(zhuǎn)緊固件,或用手捶用力敲擊緊固件的現(xiàn)象經(jīng)常發(fā)生。結(jié)果,安裝后的柴油機在工作中故障頻繁,有的甚至造成嚴重事故。現(xiàn)將柴油機上重要緊固件安裝注意事項敘述如下,以便引起廣大機手和修理人員重視。 1.氣缸蓋螺母。擰緊氣缸蓋螺母時,應(yīng)分數(shù)次逐步擰緊到規(guī)定的力矩,并按先中間、后兩邊、對角交叉的原則進行。拆缸時也應(yīng)按規(guī)定順序逐步擰松。若氣缸蓋螺母擰緊得不均勻或不平衡,會引起缸蓋平面翹曲變形。若螺母擰得過緊,螺栓會拉伸變形,機體和螺紋也會受到損壞。TDM3.2-020-300W0若螺母擰得不夠緊,會造成氣缸漏氣、漏水、漏油,氣缸內(nèi)的高溫氣體也會燒壞氣缸墊。 2.飛輪螺母。如S195型柴油機的飛輪與曲軸是通過錐面和平鍵相連接的。安裝時,飛輪螺母必須擰緊,并用止推墊圈折邊鎖緊。如果飛輪螺母擰得不緊,柴油機工作時,會產(chǎn)生敲擊聲,嚴重時會損壞曲軸錐面,剪裂鍵槽,扭斷曲軸,造成嚴重事故。另外還要注意止推墊圈的角只能扳折一次。 3.連桿螺栓。用優(yōu)質(zhì)鋼材加工的連桿螺栓在工作中承受很大沖擊力,不能用普通螺栓代替。擰緊時扭力要均勻,兩根連桿螺栓要輪流分幾次逐步擰緊到規(guī)定力矩,最后用鍍鋅鐵絲鎖緊。若連桿螺栓扭緊力矩過大,會使螺栓拉伸變形甚至折斷,引起搗缸事故;若連桿螺栓擰緊力矩過小,軸瓦間隙增大,工作時產(chǎn)生敲擊聲和沖擊載荷,甚至發(fā)生燒瓦抱軸及連桿螺栓折斷事故。 4.主軸承螺栓。應(yīng)保證主軸承的安裝精度,且不松動。擰緊主軸承螺栓時(對于采用全支承的四缸機曲軸),5TDM3.2-020-300W0道主軸承應(yīng)按照先中間,后2、4道,再1、5道的順序,分2~3次均勻擰緊到規(guī)定的力矩。每擰緊一道還應(yīng)檢查一次曲軸轉(zhuǎn)動是否正常。主軸承螺栓擰緊力矩過大或過小所產(chǎn)生的危害,與連桿螺栓擰緊力矩過大或過小所產(chǎn)生的危害基本相同。 5.TDM3.2-020-300W0平衡塊螺栓。平衡塊螺栓安裝時應(yīng)按順序,分幾次逐步擰緊到規(guī)定力矩。平衡塊應(yīng)按原位裝復(fù),否則會失去平衡作用。
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TDM3.2-020-300W0
TDM3.2-20-300-WO
TDM4.1-020-300-W0/S102
TDM1.2-50-300W1
TDM1.2-30-300W0
TDM1.2-100-300W1
TDM2.1-015-300
TDM2.1-030-300
TDM3.2-020-300
TDM3.2-030-300
TDM4.1-020-300
TDM4.1-030-300
TDM6.1-015-300
TDM6.1-030-300
TDM7.1-015-300
TDM7.1-030-300
TDM1.2-030-300
TDM1.2-050-300
TDM1.2-100-300
TDM1.2-030-300-W0
TDM1.2-050-300-W1
TDM1.2-100-300-W1
TDM1.2-030-300-W1
TDM2.1-030-300-W1
TDM2.1-030-300-W0
TDM2.1-015-300-W0
TDM3.2-030-300-W1
TDM4.1-020-300-W0
TDM4.1-030-300-W1
TDM6.1-015-300-W0
TDM6.1-030-300-W1
TDM7.1-015-300-W0
TDM7.1-030-300-W1
TDM4.1-020-300-W0/S102
TDM1.2-100-300-W1-115
TDM1.2-030-300-W1-000/S105
TDM1.2-050-300-W1-000/S105
TDM1.2-100-300-W1-000/S105
TDM1.2-030-300-W1-220/S100
TDM1.2-100-300-W1-220/S100
TDM2.1-030-300-W1-220/S101
TDM1.2-050-300-W1-220/S102
TDM4.1-030-300-W1/S102
TDM1.2-100-300-W1-000/S102
TDM1.2-050-300-W1-000/S102
TDM1.2-030-300-W1-000/S102
TDM1.2-100-300-W1-000/S100
TDM3.3-030-300-W1
TDM1.3-030-300-W1-000
TDM1.3-050-300-W1-000
TDM1.3-100-300-W1-000
TDM7.1-015-300-W0/S102
TDM4.3-020-300-W0
TDM4.3-030-300-W1
TDM1.2-050-300-W1-000/S107
TDM1.3-030-300-W1-000/S102
TDM1.3-100-300-W1-000/S102
TDM1.3-100-300-W1-000/S100
TDM1.3-030-300-W1-000/S105
TDM1.3-050-300-W1-000/S105
TDM1.3-100-300-W1-000/S105
TDM7.1-030-300-W1/S102
TDM1.4-050-300-W1-000
TDM1.4-100-300-W1-000
TDM1.2-050-300-W1-000/S100
TDM1.2-030-300-W1-000/S107
TDM1.2-050-300-W1-000/S108
TFM3.1-050-300-W1-220
TFM3.1-050-300-W1-220
TFM3.1-050-300-W1-1
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