拆卸、檢查和安裝曲軸齒輪驅(qū)動(dòng)輔助驅(qū)動(dòng)裝置約翰迪爾John Deere柴油機(jī)
注:提供各種輔助驅(qū)動(dòng)選項(xiàng);所有選項(xiàng)的拆卸和安裝類(lèi)似。輔助驅(qū)動(dòng)集成在約翰迪爾John Deere柴油機(jī)前正時(shí)齒輪蓋中。有關(guān)輔助驅(qū)動(dòng)附件的拆卸和輔助驅(qū)動(dòng)部件的修理,請(qǐng)參閱CTM67-OEM約翰迪爾John Deere柴油機(jī)附件。
1.如有配備,拆下輔助驅(qū)動(dòng)附件(空氣壓縮機(jī)、液壓泵等)(顯示為已拆下)。帶帽螺釘
2.拆下約翰迪爾John Deere柴油機(jī)減震器(如圖所示,已拆下)。
3.松開(kāi)惰輪殼帶帽螺釘(B)和正時(shí)齒輪蓋帶帽螺釘。
4.拆下按鈕頭帶帽螺釘(C)。
5.使用D01209AA滑錘和附件從正時(shí)齒輪蓋上拆下惰輪襯套/墊片(E)D) 并丟棄襯套/墊片。
輔助驅(qū)動(dòng)惰輪襯套/墊片
A-約翰迪爾John Deere柴油機(jī)正時(shí)齒輪蓋帶帽螺釘B-惰輪罩帶帽螺釘C-按鈕頭帶帽螺釘D-D01209AA拉具
E-惰輪襯套/墊片
6.拆下帶帽螺釘(A-C),然后拆下惰輪殼和齒輪。
拆下惰輪殼至正時(shí)齒輪殼端面密封和O形圈。如果沒(méi)有損壞,可以重復(fù)使用端面密封。
8.清潔并檢查輔助傳動(dòng)總成是否有開(kāi)裂的殼體、磨損或損壞的軸承以及損壞的齒輪或花鍵。根據(jù)需要更換部件。
A-約翰迪爾John Deere柴油機(jī)正時(shí)齒輪蓋至氣缸體帶帽螺釘B-惰輪罩至正時(shí)齒輪罩帶帽螺釘C-惰輪殼至氣缸體有帽螺釘
9.潤(rùn)滑O形圈并將其安裝在殼體孔(B)中。
注:內(nèi)惰輪軸承支架有一個(gè)螺紋孔,安裝在殼體的缸體側(cè)。
10.如果已拆下,將惰輪安裝到惰輪殼體內(nèi)。安裝帶密封件的帶帽螺釘(A),以將惰輪固定到位。
A-帶帽螺釘B-殼體孔
11.將約翰迪爾John Deere柴油機(jī)惰輪軸插入惰輪殼體和惰輪,直到與殼體的缸體側(cè)齊平。
重要事項(xiàng):軸一端的白點(diǎn)必須面向約翰迪爾John Deere柴油機(jī)前部。
12.潤(rùn)滑惰輪殼后側(cè)的O形環(huán)槽(A)。插入O形圈。O形環(huán)槽
注:如果端面密封未被切割、刻痕或損壞,則可重復(fù)使用。
13.使用短導(dǎo)向螺柱,將端面密封放置在正時(shí)齒輪蓋開(kāi)口上。密封件中的量規(guī)孔必須朝向開(kāi)口底部。
重要事項(xiàng):組裝過(guò)程中,注意不要損壞端面密封或使惰輪殼背面的O形圈移位。
14.小心地將惰輪插入正時(shí)齒輪的開(kāi)口中蓋上惰輪,直到惰輪與曲軸齒輪嚙合,按鈕頭帶帽螺釘并且殼體抵靠面密封座。推動(dòng)惰輪A按鈕頭帶帽螺釘將襯套/墊片(D)插入塊中。B型大O型圈C形小O形圈
15.檢查大D形惰輪襯套/墊片上O形圈(B)和(C)的狀況
按鈕頭帶帽螺釘(A)。潤(rùn)滑O形圈并通過(guò)惰輪軸安裝帶帽螺釘。將其擰入塊中,直到手指擰緊。
注意:中心正時(shí)齒輪蓋到氣缸體帶帽螺釘必須有密封。
16.拆下導(dǎo)向螺柱。安裝正時(shí)齒輪蓋帶帽螺釘(E)、惰輪罩帶帽螺釘和帶帽螺釘,用手?jǐn)Q緊。
17.按照以下順序?qū)甭葆敂Q緊至規(guī)范:
•約翰迪爾John Deere柴油機(jī)惰輪殼至正時(shí)齒輪蓋(A):
輔助驅(qū)動(dòng)惰輪
規(guī)格
安裝輔助驅(qū)動(dòng)總成
殼體至正時(shí)齒輪蓋(3/8英寸)-扭矩……41牛頓·米(30磅-英尺)
•惰輪殼至缸體(B)3/8英寸帶帽螺釘:
規(guī)格
A-約翰迪爾John Deere柴油機(jī)惰輪殼至正時(shí)齒輪蓋帶帽螺釘
B-惰輪殼體至缸體帶帽螺釘C-惰輪殼
D-約翰迪爾John Deere柴油機(jī)惰輪罩到缸體蓋螺釘E-正時(shí)齒輪蓋到缸體蓋
螺釘
F-惰輪襯套按鈕頭帶帽螺釘G-惰輪殼體至惰輪軸承帶帽螺釘
輔助驅(qū)動(dòng)惰輪
殼體至缸體(3/8英寸)-扭矩……41牛•米(30磅-英尺
•惰輪殼至缸體(D)1/2英寸帶帽螺釘:
規(guī)格
輔助驅(qū)動(dòng)惰輪
殼體到缸體(1/2英寸)-扭矩…127牛頓·米(94磅-英尺)
•惰輪襯套/墊片按鈕頭帶帽螺釘(F):
規(guī)格
輔助驅(qū)動(dòng)惰輪軸按鈕
有頭螺釘扭矩……150牛頓·米(110磅-英尺)
•正時(shí)齒輪蓋至缸體(E):
規(guī)格
正時(shí)齒輪蓋至氣缸體帶帽螺釘(5/16英寸)-扭矩……27牛頓·米(20磅-英尺)
•惰輪殼至惰輪軸承(G):
規(guī)格
輔助驅(qū)動(dòng)惰輪
殼體至惰輪軸承(5/16英寸)-扭矩……27牛頓·米(20磅-英尺)
18.檢查約翰迪爾John Deere柴油機(jī)惰輪到曲軸齒輪的齒隙。齒隙必須如下所示:
規(guī)格
輔助驅(qū)動(dòng)惰輪
約翰迪爾John Deere柴油機(jī)齒輪到曲軸齒輪-齒隙……0.11-0.7 mm(0.004-0.028英寸)
19.安裝減震器。
Remove, Inspect, and Install Crankshaft Gear-Driven Auxiliary Drive—If Equipped
NOTE: Various auxiliary drive options are available; removal and installation of all options are similar. The auxiliary drive is integrated into the engine front timing gear cover. Refer to CTM67-OEM Engine Accessories for removal of auxiliary drive accessories and repair of auxiliary drive components.
1. If equipped, remove auxiliary drive accessory (air
compressor, hydraulic pump, etc.) (shown removed). Button Head Cap Screw
2. Remove vibration damper (shown removed).
3. Loosen idler housing cap screws (B) and timing gear cover cap screws (A).
4. Remove button head cap screw (C).
5. Remove idler gear bushing/spacer (E) from timing gear cover using D01209AA Slide Hammer and Attachment
(D) and discard bushing/spacer.
Auxiliary Drive Idler Bushing/Spacer
A—Timing Gear Cover Cap Screws B—Idler Housing Cap Screws C—Button Head Cap Screw D—D01209AA Puller
E—Idler Gear Bushing/Spacer
6. Remove cap screws (A—C) and remove idler housing and gear.
Remove idler housing-to-timing gear housing face seal and O-ring. Face seal may be reused if not damaged.
8. Clean and inspect auxiliary drive assembly for cracked housing, worn or damaged bearings and damaged gear or spline. Replace components as required.
A—Timing Gear Cover-to-Cylinder Block Cap Screw B—Idler Housing-to-Timing Gear Cover Cap Screws C—Idler Housing-to-Cylinder Block Cap Screw
9. Grease and install O-ring in housing bore (B).
NOTE: Inner idler bearing support has one threaded hole, and is installed toward block side of housing.
10. If removed, install idler gear into idler housing. Install cap screw with seal (A) to hold idler gear in place.
A—Cap Screw B—Housing Bore
11. Insert idler shaft through idler housing and idler gear until flush with block side of housing.
IMPORTANT: White dot on one end of shaft must face out toward front of engine.
12. Grease O-ring groove (A) in back side of idler housing. Insert O-ring.
A—O-Ring Groove
NOTE: Face seal may be reused if it is not cut, nicked, or damaged.
13. Using a short guide stud, place face seal on timing gear cover opening. Gauge hole in seal must be positioned toward bottom of opening.
IMPORTANT: Be careful not to damage face seal or displace O-ring on back side of idler housing during assembly.
14. Carefully insert idler gear into opening of timing gear
cover until idler gear meshes with crankshaft gear, Button Head Cap Screw
and housing is seated against face seal. Push idler A—Button Head Cap Screw
bushing/spacer (D) into block. B—Large O-Ring
C—Small O-Ring
15. Check condition of O-rings (B) and (C) on large D—Idler Bushing/Spacer
button head cap screw (A). Grease O-rings and install cap screw through idler shaft. Thread into block until finger tight.
NOTE: Center timing gear cover-to-cylinder block cap screw must have a seal.
16. Remove guide stud. Install timing gear cover cap screws (E), idler housing cap screws (A and B) and cap screw (D) finger tight.
17. Tighten cap screws to specifications in the following sequence:
• Idler housing-to-timing gear cover (A):
Auxiliary Drive Idler
Specification
Install Auxiliary Drive Assembly
Housing-to-Timing Gear Cover
(3/8 in.)—Torque ...... 41 N•m (30 lb-ft)
• Idler housing-to-cylinder block (B) 3/8 inch cap screws:
Specification
A—Idler Housing-to-Timing Gear Cover Cap Screws
B—Idler Housing-to-Cylinder Block Cap Screw C—Idler Housing
D—Idler Housing-to-Cylinder Block Cap Screw E—Timing Gear Cover-to-Cylinder Block Cap
Screws
F—Idler Bushing Button Head Cap Screw G—Idler Housing-to-Idler Bearing Cap Screw
Auxiliary Drive Idler
Housing-to-Cylinder Block (3/8 in.)—Torque...... 41 N•m (30 lb-ft
• Idler housing-to-cylinder block (D) 1/2 inch cap screws:
Specification
Auxiliary Drive Idler
Housing-to-Cylinder Block (1/2 in.)—Torque.... 127 N•m (94 lb-ft)
• Idler bushing/spacer button head cap screw (F):
Specification
Auxiliary Drive Idler Shaft Button
Head Cap Screw—Torque ...... 150 N•m (110 lb-ft)
• Timing gear cover-to-cylinder block (E):
Specification
Timing Gear Cover-to-Cylinder Block Cap Screws (5/16 in.)—
Torque ..... 27 N•m (20 lb-ft)
• Idler housing-to-idler bearing (G):
Specification
Auxiliary Drive Idler
Housing-to-Idler Bearing (5/16 in.)—Torque...... 27 N•m (20 lb-ft)
18. Check idler gear-to-crankshaft gear backlash. Backlash must be as follows:
Specification
Auxiliary Drive Idler
Gear-to-Crankshaft Gear—
Backlash ...... 0.11—0.7 mm
(0.004—0.028 in.)
19. Install vibration damper.
柴油機(jī)的額定轉(zhuǎn)速越高,就要求柴油的發(fā)火性好,以確保在短時(shí)問(wèn)內(nèi)燃燒完全,對(duì)柴油十六烷值的要求就高。一般情況下,額定轉(zhuǎn)速在1 000r/min以下的柴油機(jī),可使用十六烷值為35一40的柴油;轉(zhuǎn)速在1 000~1 500r/min的柴油機(jī),可使用十六烷值為40-45的柴油;轉(zhuǎn)速在1 500r/min以上的柴油機(jī),可使用十六烷值為45一60的柴油。
柴油的十六烷值對(duì)柴油機(jī)在不同氣溫下的啟動(dòng)性能也有影響,十六烷值高的柴油,即使在較低氣溫條件也易于啟動(dòng)。但柴油的蒸發(fā)性對(duì)約翰迪爾John Deere柴油機(jī)啟動(dòng)性的影響比十六烷值重要-,而十六烷值高的柴油,蒸發(fā)性就差些。葫蘆島Perkins帕金斯1106A-7-TAG2約翰迪爾John Deere柴油機(jī)柴油機(jī)油空氣濾清器大概的價(jià)錢(qián),中衛(wèi)Perkins帕金斯2206A-E13TAG5約翰迪爾John Deere柴油機(jī)配件聯(lián)系電話網(wǎng)站,克孜勒蘇卡特柴油約翰迪爾John Deere柴油機(jī)G3512配件銷(xiāo)售歡迎來(lái)電,哈密Perkins帕金斯1206E-E66TA約翰迪爾John Deere柴油機(jī)渦輪增壓器供應(yīng)服務(wù)商,澳門(mén)離島帕金斯輸油泵總成費(fèi)用,煙臺(tái)Perkins帕金斯404A-22G1約翰迪爾John Deere柴油機(jī)活塞肖卡簧一般多少錢(qián),桂林CATC2.2柴油機(jī)哪里能買(mǎi)到費(fèi)用報(bào)價(jià)單,婁底Perkins帕金斯1104C-44TAG1約翰迪爾John Deere柴油機(jī)機(jī)油泵供應(yīng)服務(wù)商,濰坊Perkins帕金斯403F-15約翰迪爾John Deere柴油機(jī)啟動(dòng)馬達(dá)網(wǎng)站,濟(jì)南Perkins帕金斯4008TAG約翰迪爾John Deere柴油機(jī)高壓油泵、油泵組件企業(yè),蘭州Perkins帕金斯403F-11約翰迪爾John Deere柴油機(jī)氣門(mén)導(dǎo)管油封電話,十堰Perkins帕金斯1106D-E70TAG3約翰迪爾John Deere柴油機(jī)曲軸哪家好,所以,評(píng)定柴油的啟動(dòng)性應(yīng)將十六烷值與柴油的蒸發(fā)性結(jié)合起來(lái)綜合評(píng)定。
柴油的十六烷值高,其燃燒性能就好,但柴油的十六烷值過(guò)高了也不適宜。因?yàn)楫?dāng)柴油的十六烷值高于50后再繼續(xù)提高,對(duì)著火延遲期的縮短作用不大。另外,十六烷值過(guò)肩的柴油其分子量均較大,使柴油的低溫流動(dòng)性、霧化與蒸發(fā)均受影響,會(huì)使燃燒不完全,導(dǎo)致約翰迪爾John Deere柴油機(jī)功率下降、油耗升高及排氣冒黑煙。因此,在選用柴油時(shí)不應(yīng)單純地追求高十六烷值,通常要求柴油的十六烷恒在40一60之間,基本上已能滿足高速柴油機(jī)的工作要求。GB252一87規(guī)定輕柴油的十六烷值應(yīng)不小于45。
(4)提高柴油十六烷值的方法 提高柴油十六烷值的方法,一種是用硫酸或選擇溶劑除去柴油中的芳香烴。這種方法柴油產(chǎn)率低、凝點(diǎn)提高且消耗大量硫酸或溶劑。另一種簡(jiǎn)便的方法是用石蠟基原油直按蒸餾制取柴油,這種直餾柴油其十六烷值可達(dá)50一60,甚至更高一些。但直餾柴油產(chǎn)量受限,故可在直餾柴油中調(diào)人 熱裂化和催化裂化柴油餾分以增加產(chǎn)量。裂化柴油的十六烷值雖然只有30一40,但與直餾柴油調(diào)合后,可保證成品柴油的十六烷值達(dá)50左右。還有一種方法是通過(guò)向柴油中添加能提高十六烷值的添加劑,添加劑應(yīng)無(wú)毒、能很好地溶解于柴油中、沒(méi)有爆炸的危險(xiǎn)、性能穩(wěn)定、無(wú)腐蝕性且成本低。能滿足上述要求的添加劑主要有丙酮過(guò)氧化物、烷基硝酸酯、四氫蔡過(guò)氧化物等。加入量一般根據(jù)添加劑的不同控制在0.*25%~3兒之間,可提高十六烷值16一24個(gè)單位,加注過(guò)量時(shí),對(duì)提高十六烷值作用并不明顯。這種方法的優(yōu)點(diǎn)是:無(wú)成品損失也不改變柴油的凝點(diǎn)。采用添加劑的辦法提高柴油的十六烷值必須考慮柴油本身的化學(xué)安定性。柴油本身的批學(xué)安定性好,添加劑加入后能在較長(zhǎng)時(shí)間內(nèi)發(fā)揮效用,否則,在柴油儲(chǔ)存期問(wèn),其十六烷值就將降低。