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目 次

1. 維修保養(yǎng)時(shí)的注意事項(xiàng)

1-1. 正確工作.................................................................................................1-1

1-2. 安全上的注意事項(xiàng).........................................................................................1-1

1-3. 準(zhǔn)備工作.................................................................................................1-1

1-4. 拆卸、組裝時(shí)的注意事項(xiàng)...................................................................................1-2

1-5. 液壓機(jī)器裝卸時(shí)的注意事項(xiàng).................................................................................1-3

1-6. 管道裝卸時(shí)的注意事項(xiàng).....................................................................................1-3

1-7. 密封件類的使用說明.......................................................................................1-4

1-8. 液壓軟管的正確安裝方法...................................................................................1-5

1-9. 液壓軟管的規(guī)格...........................................................................................1-7

1-10. 液壓元件類的放氣步驟...................................................................................1-11

2. 概要

2-1. 規(guī)格、技術(shù)參數(shù).........................................................................................2-1-1

2-2. 外形圖和作業(yè)范圍圖.....................................................................................2-2-1

2-3. 主要部件重量表.........................................................................................2-3-1

2-4. 起吊能力表.............................................................................................2-4-1

3. 維修保養(yǎng)標(biāo)準(zhǔn)

3-1. 車輛性能...............................................................................................3-1-1

3-2. 發(fā)動(dòng)機(jī).................................................................................................3-2-1

3-3. 行走裝置...............................................................................................3-3-1

3-4. 操縱裝置...............................................................................................3-4-1

3-5. 液壓裝置...............................................................................................3-5-1

3-5-1. 液壓油缸..........................................................................................3-5-1

3-6. 工作裝置...............................................................................................3-6-1

3-6-1. 前端工作裝置......................................................................................3-6-1

3-6-2. 推土鏟............................................................................................3-6-2

3-6-3. 鏟斗斗齒..........................................................................................3-6-2

3-7. 各部分緊固扭矩一覽表...................................................................................3-7-1

3-7-1. 車輛主機(jī)..........................................................................................3-7-1

3-7-2. 發(fā)動(dòng)機(jī)............................................................................................3-7-3

3-7-3. 普通螺栓..........................................................................................3-7-3

4. 發(fā)動(dòng)機(jī)的維修保養(yǎng)步驟

4-1. 檢查和調(diào)整.............................................................................................4-1-1

4-1-1. 燃料噴射閥的結(jié)構(gòu)..................................................................................4-1-1

4-1-2. 燃料噴射閥的噴射壓力和噴霧狀態(tài)的檢查、調(diào)整........................................................4-1-2

4-1-3. 閥間隙的檢查、調(diào)整................................................................................4-1-4

4-1-4. 傳感器類的檢查....................................................................................4-1-6

4-1-5. 冷卻水系統(tǒng)漏水檢查................................................................................4-1-6

4-1-6. 散熱器蓋的檢查....................................................................................4-1-6

4-1-7. 溫控器的檢查......................................................................................4-1-7

4-1-8. 燃料噴射定時(shí)的調(diào)整................................................................................4-1-7

4-1-9. 空載/ 最低轉(zhuǎn)速的調(diào)整.........................................................................4-1-10

4-2. 故障診斷...............................................................................................4-2-1

4-2-1. 故障診斷前........................................................................................4-2-1

4-2-2. 故障診斷一覽表....................................................................................4-2-2

4-2-3. 通過壓縮壓力來診斷故障............................................................................4-2-5

4-3. 發(fā)動(dòng)機(jī)的拆卸、檢查、組裝...............................................................................4-3-1

4-3-1. 發(fā)動(dòng)機(jī)的總拆卸、總組裝............................................................................4-3-1

4-3-2. 總拆卸............................................................................................4-3-2

4-3-3. 組裝前、組裝時(shí)的注意事項(xiàng)..........................................................................4-3-4

4-4. 氣缸蓋的拆卸、檢查、組裝...............................................................................4-4-1

4-4-1. 結(jié)構(gòu)圖(下圖表示3TNV84 型發(fā)動(dòng)機(jī)。) ................................................................4-4-1

4-4-2. 拆卸步驟..........................................................................................4-4-1

4-4-3. 組裝步驟:與拆卸步驟相反進(jìn)行即可。.................................................................4-4-2

4-4-4. 作業(yè)要點(diǎn)..........................................................................................4-4-2

4-4-5. 部件的檢查, 測(cè)量..................................................................................4-4-5

4-4-6. 閥座的修正........................................................................................4-4-8

4-4-7. 閥導(dǎo)套的更換......................................................................................4-4-9

4-4-8. 閥桿油封的更換...................................................................................4-4-10

4-5. 齒輪系和凸輪軸的拆卸、檢查、組裝.......................................................................4-5-1

4-5-1. 結(jié)構(gòu)圖(該圖為3TNV84 型發(fā)動(dòng)機(jī)的結(jié)構(gòu)圖。) ..........................................................4-5-1

4-5-2. 拆卸步驟:按圖中表示的號(hào)碼順序來進(jìn)行。.............................................................4-5-1

4-5-3. 組裝步驟:與拆卸步驟相反進(jìn)行即可。.................................................................4-5-1

4-5-4. 作業(yè)要點(diǎn)..........................................................................................4-5-2

4-5-5. 部件的檢查測(cè)量....................................................................................4-5-4

4-5-6. 油封的更換........................................................................................4-5-5

4-5-7. 凸輪軸軸套的更換..................................................................................4-5-5

4-6. 氣缸體的拆卸、檢查、組裝...............................................................................4-6-1

4-6-1. 結(jié)構(gòu)圖(該圖為3TNV84 型發(fā)動(dòng)機(jī)的結(jié)構(gòu)圖。) ..........................................................4-6-1

4-6-2. 拆卸步驟:按圖中表示的號(hào)碼順序來進(jìn)行。.............................................................4-6-1

4-6-3. 組裝步驟:與拆卸步驟相反進(jìn)行即可。.................................................................4-6-1

4-6-4. 作業(yè)要點(diǎn)..........................................................................................4-6-2

4-6-5. 部件的檢查、測(cè)量..................................................................................4-6-5

4-6-6. 氣缸內(nèi)徑的修正...................................................................................4-6-12

4-6-7. 活塞銷襯套的更換.................................................................................4-6-13

4-6-8. 油封的更換.......................................................................................4-6-13

4-7. 潤滑裝置的拆卸、檢查、組裝.............................................................................4-7-1

4-7-1. 潤滑油系統(tǒng)圖......................................................................................4-7-1

4-7-2. 潤滑油泵結(jié)構(gòu)圖....................................................................................4-7-1

4-7-3. 潤滑油泵的拆卸、組裝(組裝的步驟和拆卸的相反) .....................................................4-7-2

4-7-4. 作業(yè)要點(diǎn)..........................................................................................4-7-2

4-7-5. 擺線齒輪泵的檢查、測(cè)量............................................................................4-7-2

4-8. 冷卻裝置...............................................................................................4-8-1

4-8-1. 冷卻水系統(tǒng)圖......................................................................................4-8-1

4-8-2. 冷卻水泵結(jié)構(gòu)圖(該圖為4TNV84 型發(fā)動(dòng)機(jī)的結(jié)構(gòu)圖。) ..................................................4-8-1

4-8-3. 拆卸、組裝(組裝的步驟和拆卸的相反) ...............................................................4-8-2

4-8-4. 作業(yè)要點(diǎn)..........................................................................................4-8-2

4-9. 啟動(dòng)馬達(dá)...............................................................................................4-9-1

4-9-1. 啟動(dòng)馬達(dá)的特性....................................................................................4-9-1

4-10. 交流發(fā)電機(jī)的檢查.....................................................................................4-10-1

4-10-1. 交流發(fā)電機(jī)結(jié)構(gòu)圖................................................................................4-10-1

4-10-2. 主要規(guī)格........................................................................................4-10-2

4-10-3. 接線圖..........................................................................................4-10-2

4-10-4. 標(biāo)準(zhǔn)輸出功率特性................................................................................4-10-3

4-10-5. 故障診斷與處理..................................................................................4-10-4

5. 液壓系統(tǒng)

5-1. 概要...................................................................................................5-1-1

5-1-1. 控制閥的工作原理..................................................................................5-1-4

5-1-2. 控制閥的附加功能..................................................................................5-1-6

5-2. 液壓回路圖.............................................................................................5-2-1

5-3. 操作回路...............................................................................................5-3-1

5-3-1. 動(dòng)臂..............................................................................................5-3-1

5-3-2. 斗桿..............................................................................................5-3-3

5-3-3. 鏟斗..............................................................................................5-3-5

5-3-4. 旋轉(zhuǎn)..............................................................................................5-3-7

5-3-5. 動(dòng)臂旋轉(zhuǎn)..........................................................................................5-3-9

5-3-6. 推土鏟...........................................................................................5-3-11

5-3-7. 行走.............................................................................................5-3-13

5-3-8. 直線行走(同時(shí)進(jìn)行動(dòng)臂、斗桿、鏟斗、動(dòng)臂旋轉(zhuǎn)操作) .................................................5-3-15

5-3-9. 『動(dòng)臂提升』和『斗桿收回』的同時(shí)操作...............................................................5-3-17

5-3-10. 『動(dòng)臂提升』和『鏟斗』的同時(shí)操作..................................................................5-3-19

5-3-11. 『動(dòng)臂提升』和『旋轉(zhuǎn)』的同時(shí)操作..................................................................5-3-21

5-3-12. 『斗桿』和『鏟斗』的同時(shí)操作......................................................................5-3-23

5-3-13. 液壓P.T.O. .....................................................................................5-3-25

5-4. 壓力調(diào)整...............................................................................................5-4-1

5-4-1. 安全閥............................................................................................5-4-1

5-4-2. 旋轉(zhuǎn)制動(dòng)閥........................................................................................5-4-3

5-4-3. 截流閥............................................................................................5-4-4

6. 液壓機(jī)器

6-1. 液壓泵.................................................................................................6-1-1

6-2. 控制閥.................................................................................................6-2-1

6-3. 先導(dǎo)閥.................................................................................................6-3-1

6-4. 旋轉(zhuǎn)馬達(dá)...............................................................................................6-4-1

6-5. 行走馬達(dá)...............................................................................................6-5-1

7. 各裝置的維修保養(yǎng)步驟

7-1. 本機(jī)電裝品及發(fā)動(dòng)機(jī).....................................................................................7-1-1

7-1-1. 電裝品的配置及名稱................................................................................7-1-1

7-1-2. 監(jiān)視器及報(bào)警系統(tǒng)..................................................................................7-1-2

7-1-3. 電氣配線圖........................................................................................7-1-5

7-1-4. 發(fā)動(dòng)機(jī)啟動(dòng)、停止、充電時(shí)的電路說明.................................................................7-1-6

7-1-5. 發(fā)動(dòng)機(jī)的拆裝......................................................................................7-1-8

7-1-6. 啟動(dòng)馬達(dá)的拆裝...................................................................................7-1-15

7-1-7. 燃料噴射泵的拆裝.................................................................................7-1-16

7-2. 行走裝置...............................................................................................7-2-1

7-2-1. 概要..............................................................................................7-2-1

7-2-2. 鋼履帶裝配時(shí)的注意事項(xiàng)............................................................................7-2-2

7-2-3. 鋼履帶的拆裝步驟..................................................................................7-2-4

7-2-4. 行走馬達(dá)及減速機(jī)的拆裝步驟........................................................................7-2-5

7-2-5. 導(dǎo)向輪的拆卸、裝配................................................................................7-2-7

7-2-6. 支重輪的拆卸、裝配...............................................................................7-2-10

7-2-7. 托鏈輪的拆卸、裝配...............................................................................7-2-13

7-2-8. 浮動(dòng)密封環(huán)的裝配步驟............................................................................7-2-15

7-2-9. 工具圖...........................................................................................7-2-16

7-3. 操縱裝置...............................................................................................7-3-1

7-3-1. 連接圖............................................................................................7-3-1

7-3-2. 控制閥、連桿機(jī)構(gòu)的拆卸、裝配.......................................................................7-3-2

7-3-3. 操作桿的調(diào)整......................................................................................7-3-4

7-3-4. 行走操作桿的調(diào)整..................................................................................7-3-5

7-3-5. 動(dòng)臂旋轉(zhuǎn)踏板的調(diào)整................................................................................7-3-6

7-3-6. 推土鏟操作桿的調(diào)整................................................................................7-3-6

7-3-7. 固定桿的調(diào)整......................................................................................7-3-7

7-3-8. 加速桿的調(diào)整......................................................................................7-3-8

7-4. 旋轉(zhuǎn)軸承裝置...........................................................................................7-4-1

7-5. 液壓裝置...............................................................................................7-5-1

7-5-1. 液壓泵的拆裝......................................................................................7-5-1

7-5-2. 控制閥的拆裝......................................................................................7-5-3

7-5-3. 旋轉(zhuǎn)馬達(dá)的拆裝....................................................................................7-5-6

7-5-4. 旋轉(zhuǎn)接頭的拆裝....................................................................................7-5-8

7-5-5. 旋轉(zhuǎn)接頭的拆卸、裝配.............................................................................7-5-11

7-5-6. 液壓油缸的拆卸、裝配.............................................................................7-5-14

7-5-7. 液壓油箱.........................................................................................7-5-18

7-5-8. 液壓管道圖.......................................................................................7-5-25

7-6. 工作裝置...............................................................................................7-6-1

7-6-1. 工作裝置的拆裝....................................................................................7-6-1

7-7. 裝備件.................................................................................................7-7-1

7-7-1. 封閉式駕駛室......................................................................................7-7-1

8. 定期檢查維修一覽表

8. 定期檢查維修一覽表..........................................................................................8-1

9. 使用(潤滑)油脂類型一覽表

9. 使用(潤滑)油脂類型一覽表.................................................................................9-1

10. 故障診斷與處理

10-1. 不是故障的現(xiàn)象.......................................................................................10-1-1

10-1-1. 鏟斗的自然放開..................................................................................10-1-1

10-1-2. 斗桿的瞬間停止現(xiàn)象

(斗桿的不連續(xù)動(dòng)作現(xiàn)象).................................................................................10-1-1

10-1-3. 由于行走操作導(dǎo)致的上部回轉(zhuǎn)機(jī)構(gòu)的偏移............................................................10-1-2

10-1-4. 行走馬達(dá)的熱沖擊( 熱震) ........................................................................10-1-3

10-1-5. 75°動(dòng)臂旋轉(zhuǎn)時(shí)的動(dòng)臂旋轉(zhuǎn)油缸的伸出..............................................................10-1-4

10-1-6. 固定桿處于鎖定狀態(tài)時(shí),動(dòng)臂旋轉(zhuǎn)油缸的伸縮........................................................10-1-5

10-1-7. 行走雙速切換時(shí)的延時(shí)............................................................................10-1-6

10-1-8. 因溫度變化液壓油箱的油位發(fā)生變化................................................................10-1-7

10-2. 故障診斷程序.........................................................................................10-2-1

10-2-1. 車輛主機(jī)及發(fā)動(dòng)機(jī)................................................................................10-2-1

10-2-2. 監(jiān)視器內(nèi)電裝品和止動(dòng)馬達(dá).......................................................................10-2-22

11. 參考資料

11-1. 鏟斗連接部分的尺寸一覽表...............................................................................11-1

11-2. 鏟斗斗齒的安裝尺寸一覽表...............................................................................11-2

1. 維修保養(yǎng)時(shí)的注意事項(xiàng)

1-1. 正確工作............................................. 1-1

1-2. 安全上的注意事項(xiàng)..................................... 1-1

1-3. 準(zhǔn)備工作............................................. 1-1

1-4. 拆卸、組裝時(shí)的注意事項(xiàng)............................... 1-2

1-5. 液壓機(jī)器裝卸時(shí)的注意事項(xiàng)............................. 1-3

1-6. 管道裝卸時(shí)的注意事項(xiàng)................................. 1-3

1-7. 密封件類的使用說明................................... 1-4

1-8. 液壓軟管的正確安裝方法............................... 1-5

1-9. 液壓軟管的規(guī)格....................................... 1-7

1-10. 液壓元件類的放氣步驟............................... 1-11

1. 維修保養(yǎng)時(shí)的注意事項(xiàng)

1-1. 正確工作

正確工作是指遵守工作程序和方法上所規(guī)定的標(biāo)準(zhǔn),迅速準(zhǔn)確地完成工作。

同時(shí),在進(jìn)行某項(xiàng)工作時(shí),不管進(jìn)行的是哪一項(xiàng)工作,牢記以下事項(xiàng)是很重要的:

要進(jìn)行什么樣的維修,使用什么樣的工具、機(jī)器、材料、油脂等等,在哪個(gè)部位應(yīng)該進(jìn)行怎樣的檢查、調(diào)整或拆

卸?有沒有必須注意事項(xiàng)?

1-2. 安全上的注意事項(xiàng)

(1) 安全帽、安全鞋、工作服的穿戴。

(2) 設(shè)備、工具類的檢查、特別是掛鉤吊索等用具在使用前必須進(jìn)行檢查。

(3) 由多名工作者共同進(jìn)行工作時(shí),要明確各自的分工,決定聯(lián)絡(luò)信號(hào),在保持相互聯(lián)絡(luò)的情況下進(jìn)行工作。

(4) 具有起重機(jī)駕駛執(zhí)照,及其從事起重機(jī)掛鉤吊索工作資格者才能工作。

(5) 起吊貨物的下面禁止入內(nèi)。

(6) 對(duì)于沉重的部件,在拆下安裝螺栓之前,要用起重機(jī)保護(hù)性地吊著該部件,以便支撐重量。

(7) 修理電氣系統(tǒng)時(shí),要從蓄電池上取下電纜后進(jìn)行工作。

(8) 焊接部件時(shí),要在取出蓄電池后進(jìn)行工作。

1-3. 準(zhǔn)備工作

(1) 顧客管理筆記的檢查,也就是,前一次維修的時(shí)間( 前一次維修后使用了幾個(gè)月或者多長小時(shí))、是否發(fā)生

過什么問題、是否更換過什么部件等內(nèi)容檢查。

(2) 維修工具、測(cè)量器具( 要定期檢查的器具)、容器、油脂類等的準(zhǔn)備。

(3) 相關(guān)參考資料( 本車輛的使用及保養(yǎng)說明書、零部件目錄) 等的準(zhǔn)備。

1-4. 拆卸、組裝時(shí)的注意事項(xiàng)

(1) 開始拆卸之前,要清洗車輛。

拆卸之前要做如下的車輛狀態(tài)檢查,并作記錄:

· 車輛型號(hào)、機(jī)號(hào)、運(yùn)轉(zhuǎn)時(shí)間

· 修理原因、修理歷史記錄

· 過濾器類的污染程度

· 燃料、油的狀態(tài)

· 各個(gè)部件的損傷情況、等等。

(2) 為了方便組裝,在必要的部位要標(biāo)上能表示相對(duì)位置關(guān)系的配合記號(hào)。

(3) 不管是拆卸下來的部件,還是新組裝的部件,全部要清洗干凈,按照順序整理好。

(4) 密封件類及開口銷必須使用新品。

忌水,忌油的部件,要和沾了油的部件分開整理。

· 電裝品、橡膠類、V 型帶、等等。

(5) 軸承、軸襯、油封等安裝時(shí),要用工具進(jìn)行壓裝。使用錘子敲的時(shí)候,要墊上緩沖物體。

(6) 各個(gè)部件的配合面,要擦得很干凈。

(7) 密封帶在離螺紋端部要留出1-2 個(gè)螺紋,卷繞時(shí)用力,相鄰兩卷的重疊寬度控制在10mm 左右。

1-5. 液壓機(jī)器裝卸時(shí)的注意事項(xiàng)

(1) 確認(rèn)液壓油的溫度確實(shí)已經(jīng)下降。

(2) 為了防止液壓油流出,排放油箱中的空氣。

(3) 液壓機(jī)器的開口部必須裝上蓋子或螺塞,以防止雜物進(jìn)入。

(4) 粘附在機(jī)身上的液壓油,因?yàn)槿菀滓鹇┯偷恼`會(huì),一定要徹底擦拭,除去。

(5) 注意不要損傷液壓油缸活塞桿部位的鍍層。

(6) 裝卸液壓油缸時(shí),要在活塞桿縮到最短的狀態(tài)下進(jìn)行。

(7) 安裝液壓油缸后,必須將油缸中的空氣除去。

· 讓發(fā)動(dòng)機(jī)低速運(yùn)轉(zhuǎn),使液壓油缸活塞桿在伸,縮時(shí),其端部都在離開各自行程終點(diǎn)50 ~ 100 mm 為止緩

慢伸縮4 ~ 5 次后,作全行程運(yùn)動(dòng)。

(8) 液壓機(jī)器安裝后,必須給液壓油箱內(nèi)加壓。( 對(duì)于密閉式液壓油箱來說) 如果忘了這步工作,液壓泵容易引

起空化。同時(shí),對(duì)液壓泵的壽命有十分明顯的不良影響。

· 液壓油箱的加壓方法:應(yīng)在各個(gè)液壓油缸伸得最長的狀態(tài)下,旋緊加油蓋。

1-6. 管道裝卸時(shí)的注意事項(xiàng)

(1) 液壓軟管的安裝方法

液壓軟管不要扭轉(zhuǎn)著安裝。對(duì)于這種情況,可用軟管標(biāo)記確認(rèn)軟管是否扭

轉(zhuǎn)。另外,帶有管道接頭的情況,為了防止軟管扭轉(zhuǎn),可用兩個(gè)扳手,按

規(guī)定的扭矩緊固。此時(shí),要注意不要讓固定一側(cè)的扳手產(chǎn)生轉(zhuǎn)動(dòng)。

緊固后,要仔細(xì)確認(rèn)軟管有無接觸,如有接觸,重新調(diào)整或用螺旋管等保

護(hù)起來。

(2) 安裝液壓軟管時(shí),按規(guī)定的扭矩先擰緊接頭一次,其后稍稍擰松,然而再次擰緊到所規(guī)定的扭矩。

· 讓軟管和安裝部位相互更加協(xié)調(diào)后,擰緊接頭。

【注】用了密封帶的接頭不要擰松。

(3) 安裝配管用管時(shí),擰緊螺母直到徙手?jǐn)Q突然感到吃力(扭矩急增加點(diǎn))之后,再擰緊螺母1/4 ~ 1/2 圈。

(4) 裝卸液壓軟管或配管用管時(shí),使用兩個(gè)扳手,固定相對(duì)的一個(gè),不能讓軟管或配管用管發(fā)生扭曲。

(5) 安裝液壓軟管或配管用管后,加壓到所工作壓力5-6 次,確認(rèn)是否漏油。

4. 發(fā)動(dòng)機(jī)的維修保養(yǎng)步驟

4-1. 檢查和調(diào)整.............................4-1-1

4-1-1. 燃料噴射閥的結(jié)構(gòu)..................4-1-1

4-1-2. 燃料噴射閥的噴射壓力和噴霧狀態(tài)的

檢查、調(diào)整........................4-1-2

4-1-3. 閥間隙的檢查、調(diào)整................4-1-4

4-1-4. 傳感器類的檢查....................4-1-6

4-1-5. 冷卻水系統(tǒng)漏水檢查................4-1-6

4-1-6. 散熱器蓋的檢查....................4-1-6

4-1-7. 溫控器的檢查......................4-1-7

4-1-8. 燃料噴射定時(shí)的調(diào)整................4-1-7

4-1-9. 空載/ 最低轉(zhuǎn)速的調(diào)整.........4-1-10

4-2. 故障診斷...............................4-2-1

4-2-1. 故障診斷前........................4-2-1

4-2-2. 故障診斷一覽表....................4-2-2

4-2-3. 通過壓縮壓力來診斷故障............4-2-5

4-3. 發(fā)動(dòng)機(jī)的拆卸、檢查、組裝...............4-3-1

4-3-1. 發(fā)動(dòng)機(jī)的總拆卸、總組裝............4-3-1

4-3-2. 總拆卸............................4-3-2

4-3-3. 組裝前、組裝時(shí)的注意事項(xiàng)..........4-3-4

4-4. 氣缸蓋的拆卸、檢查、組裝...............4-4-1

4-4-1. 結(jié)構(gòu)圖(下圖表示3TNV84 型發(fā)動(dòng)機(jī)。)4-4-1

4-4-2. 拆卸步驟..........................4-4-1

4-4-3. 組裝步驟:

與拆卸步驟相反進(jìn)行即可。...........4-4-2

4-4-4. 作業(yè)要點(diǎn)..........................4-4-2

4-4-5. 部件的檢查, 測(cè)量..................4-4-5

4-4-6. 閥座的修正........................4-4-8

4-4-7. 閥導(dǎo)套的更換......................4-4-9

4-4-8. 閥桿油封的更換...................4-4-10

4-5. 齒輪系和凸輪軸的拆卸、檢查、組裝.......4-5-1

4-5-1. 結(jié)構(gòu)圖

(該圖為3TNV84 型發(fā)動(dòng)機(jī)的結(jié)構(gòu)圖。).4-5-1

4-5-2. 拆卸步驟:

按圖中表示的號(hào)碼順序來進(jìn)行。.......4-5-1

4-5-3. 組裝步驟:與拆卸步驟相反進(jìn)行即可。.4-5-1

4-5-4. 作業(yè)要點(diǎn)..........................4-5-2

4-5-5. 部件的檢查測(cè)量.................... 4-5-4

4-5-6. 油封的更換........................ 4-5-5

4-5-7. 凸輪軸軸套的更換.................. 4-5-5

4-6. 氣缸體的拆卸、檢查、組裝............... 4-6-1

4-6-1. 結(jié)構(gòu)圖(該圖為3TNV84 型

發(fā)動(dòng)機(jī)的結(jié)構(gòu)圖。)................. 4-6-1

4-6-2. 拆卸步驟:

按圖中表示的號(hào)碼順序來進(jìn)行。...... 4-6-1

4-6-3. 組裝步驟:與拆卸步驟相反進(jìn)行即可。4-6-1

4-6-4. 作業(yè)要點(diǎn).......................... 4-6-2

4-6-5. 部件的檢查、測(cè)量.................. 4-6-5

4-6-6. 氣缸內(nèi)徑的修正................... 4-6-12

4-6-7. 活塞銷襯套的更換................. 4-6-13

4-6-8. 油封的更換....................... 4-6-13

4-7. 潤滑裝置的拆卸、檢查、組裝............. 4-7-1

4-7-1. 潤滑油系統(tǒng)圖...................... 4-7-1

4-7-2. 潤滑油泵結(jié)構(gòu)圖.................... 4-7-1

4-7-3. 潤滑油泵的拆卸、組裝

(組裝的步驟和拆卸的相反)......... 4-7-2

4-7-4. 作業(yè)要點(diǎn).......................... 4-7-2

4-7-5. 擺線齒輪泵的檢查、測(cè)量............ 4-7-2

4-8. 冷卻裝置............................... 4-8-1

4-8-1. 冷卻水系統(tǒng)圖...................... 4-8-1

4-8-2. 冷卻水泵結(jié)構(gòu)圖(該圖為4TNV84 型

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