在維修保養約翰迪爾強鹿柴油機為什么要確定機油泵和曲軸驅動齒輪之間是否有足夠的齒隙

8000系列拖拉機中使用的6081HRW約翰迪爾John Deere柴油機配備了前車架/油底殼，它也是車輛的結構部件。為了接近約翰迪爾John Deere柴油機機油泵，必須將約翰迪爾John Deere柴油機從車輛上拆下。

有關約翰迪爾John Deere柴油機拆卸說明，請參閱TM1575（8100、8200、8300和8400拖拉機-維修）。（有關履帶型號，請參閱TM1621。）

拆下油底殼拆下油底殼可以接近約翰迪爾John Deere柴油機機油泵。

1.排空約翰迪爾John Deere柴油機機油。

2.拆下John Deere柴油機油底殼并丟棄墊片。

3.從John Deere柴油機油底殼導軌和缸體安裝表面上移除所有墊片材料。

重要事項：油底殼帶帽螺釘只能有一個平墊圈，不能有鎖緊墊圈。如果帶帽螺釘有帶鎖緊墊圈的平墊圈，則將其丟棄，并更換為新的硬化平墊圈。

檢查曲軸齒輪到機油泵驅動齒輪的齒隙重要事項：斜齒輪的齒隙必須至少為0.08毫米（0.003英寸），且至少為正齒輪為0.10毫米（0.004英寸）。如果齒隙小于規格，

更換機油泵驅動齒輪。

拆卸機油泵前，確定機油泵和曲軸驅動齒輪之間是否有足夠的齒隙。

規格

曲軸斜齒輪至油

John Deere柴油機泵驅動齒輪齒隙……曲軸正齒輪至油的最小間隙為0.08 mm（0.003 in.）

John Deere柴油機泵驅動齒輪齒隙……最小0.10毫米（0.004英寸）安裝千分表（A），并測量泵驅動齒輪（B）和曲軸齒輪（C）之間的齒隙。

測量油泵驅動齒輪齒隙

檢查油泵齒輪到曲軸的間隙。

千分表

B泵驅動齒輪規格油泵螺旋C形曲軸齒輪齒輪至曲軸行程-間隙……最小0.38毫米（0.0015英寸）

拆下約翰迪爾John Deere柴油機機油泵

1.松開驅動齒輪固定螺母（A）一整圈。

2.拆下四個帶墊圈的油泵殼體帶帽螺釘（B）。

重要事項：一些早期約翰迪爾John Deere柴油機使用5級油泵安裝帶帽螺釘。重新安裝泵時，用新的8級帶帽螺釘更換這些帶帽螺釘。

3.提起油泵總成并晃動總成，拆下油泵從左到右將殼體從支座上分離銷釘。A驅動齒輪固定螺母B-油泵殼體帶帽螺釘

4.一旦泵組件沒有定位銷，將組件向右旋轉（從飛輪端看），并將出口管（A）從泵殼上脫開。

5.拆下油泵驅動齒輪（C）和拾油管（B） 來自泵。A-出口管B-拾取管C-油泵驅動齒輪

檢查和清潔油泵

1.目視檢查油泵是否磨損或損壞。

2.用清潔溶劑沖洗泵總成內部，以清除油。旋轉泵齒輪以幫助去除溶劑。泵齒輪應能自由移動。

3.將油泵放在工作臺上

泵至缸體安裝面朝向

重要事項：不要向上拆卸約翰迪爾John Deere柴油機機油（與安裝在約翰迪爾John Deere柴油機上時相同）。沖洗、檢查用泵，或進行磨損檢查。個別重要事項：為了幫助確保油泵的磨損部件不是測量值，請確保油泵可通過維修部件獲得。是干凈的，面向與安裝在缸體上時，將泵作為一個整體更換。裝配注意：制造時，保持泵驅動齒輪已安裝

切勿直接錘擊機油泵止回閥。外殼，因為它可能導致齒輪卡住。檢查驅動軸端隙

1.安裝千分表，使指示器柱塞靠在泵驅動軸端部。

2.將軸移向和移離指示器。

如果端隙超過規格，則泵蓋過度磨損和/或泵驅動齒輪端部磨損。

規格

油泵驅動軸最大值端隙……0.15毫米（0.006英寸）如果端隙超過技術規格，則更換油泵。檢查泵軸端隙檢查驅動軸側移

1.安裝千分表，使指示器柱塞靠在一個六角螺母平面上2.將軸從一側移動到另一側。

如果軸側移動超過規格，則表明驅動軸襯套和/或驅動軸過度磨損。

規格

油泵驅動軸最大值側向移動……0.17毫米（0.0065英寸）

如果軸側移動超過規格，則更換油泵。

檢查泵送齒輪齒隙

1.安裝千分表，使柱塞靠在齒輪齒側。

2.保持惰輪靜止。緩慢地前后旋轉驅動齒輪，直到與惰輪接觸。

如果齒隙不在技術規格范圍內，則泵送齒輪過度磨損和/或惰輪軸和齒輪襯套磨損。

規格

John Deere柴油機油泵驅動齒輪齒隙………0.33-2.00 mm（0.013-0.079 in.）如果齒隙小于0.33毫米（0.013英寸），則重新清潔齒輪并再次檢查齒隙。

3.如果John Deere柴油機泵送齒輪齒隙超過2.00 mm（0.079 in.），則更換油泵。

檢查油泵驅動齒輪

注意：檢查驅動齒輪時，不需要從約翰迪爾John Deere柴油機上拆下機油泵。

檢查驅動齒輪齒有無碎屑、裂紋或磨損。必要時更換。

調整油泵固定螺釘

正常情況下，不應調整定位螺釘（A）；但是，如果調整螺釘，則應遵循以下步驟。

1.將驅動齒輪和惰輪裝配到泵殼體內。

2.安裝機油泵蓋（B），并將蓋擰緊至外殼帶帽螺釘，使其符合規范。

規格

機油泵蓋至殼體-扭矩..41牛頓·米（30磅-英尺）

3.擰緊固定螺釘，直到其接觸惰輪軸。

4.繼續固定固定螺釘，并將鎖緊螺母（C）擰緊至規范。

規格

油泵固定螺釘鎖緊螺母-扭矩……8牛頓·米（6磅-英尺）不要過度擰緊固定螺釘或鎖緊螺母。

5.用手旋轉驅動齒輪，以確保軸在殼體中自由轉動。如果軸不能自由轉動，重新調整定位螺釘。

安裝約翰迪爾John Deere柴油機機油泵

1.將齒輪（A）安裝到泵上，并使用螺母和墊圈擰緊。最終扭矩將在安裝泵后完成。

2.使用新墊片，將吸油管（B）安裝到油泵上，并將帶帽螺釘擰緊至規格。

規格

油泵進氣（撿拾器）管到蓋的扭矩………47牛頓·米（35磅-英尺）

安裝油泵齒輪和撿拾器

A-油泵驅動齒輪B-拾油管

3.將新O形圈安裝到機油泵殼體的凹槽中，并用清潔的約翰迪爾John Deere柴油機機油潤滑。將機油泵出口管安裝到機油泵殼體中。

4.將油泵總成旋轉到定位銷上，并小心地將總成定位到定位銷中，而不會對出口管施加壓力或導致出口管卡住。

重要事項：不要直接錘擊泵外殼，因為它可能導致齒輪卡住。

5.在安裝孔附近的外殼外緣使用硬橡膠錘將泵固定在定位銷上（如圖所示）。確保驅動齒輪與曲軸齒輪正確嚙合，油泵出口管在O形圈孔中正確定位（無卡滯）。

重要事項：一些早期約翰迪爾John Deere柴油機使用5級油泵安裝帶帽螺釘。重新安裝泵時，用新的8級帶帽螺釘更換這些帶帽螺釘。

6.按照規范安裝并擰緊油泵殼體至氣缸體的帶帽螺釘。

規格

油泵殼體至氣缸缸體扭矩……42牛頓·米（31磅-英尺）油泵齒輪

7.將油泵驅動齒輪固定螺母擰緊至規格。

安裝油泵出口管

規格

油泵驅動齒輪固定

螺母扭矩…….54牛•米（40磅英尺）

A-油泵驅動齒輪B-油泵出口管

拆卸和安裝機油泵出口管和機油冷卻器跨接管適配器

卸下適配器：

1.拆下機油泵（圖示為已拆下）。請參閱本組前面的“拆卸約翰迪爾John Deere柴油機機油泵”。

2.拆下將適配器（A）固定到氣缸體的兩個帶帽螺釘，并拆下帶有機油冷卻器轉換管（B）的適配器。

3.清潔配合面上的所有墊片材料并丟棄。

安裝適配器：

注意：確保墊片的位置使偏移量與適配器匹配，以避免堵塞油道。

1.用清潔的約翰迪爾John Deere柴油機機油潤滑新O形圈，并使用新墊片安裝適配器（帶交叉管）。確保管正確定位在每個O形環孔中。

2.按照規范擰緊帶帽螺釘。

規格

油泵出口和機油冷卻器跨接管至氣缸塊適配器（內部）-扭矩…54牛頓·米（40磅-英尺）機油冷卻器跨接管和適配器

A適配器

B-油冷卻器交叉管

3.安裝約翰迪爾John Deere柴油機油泵總成。請參閱本組前面的安裝約翰迪爾John Deere柴油機機油泵。

拆卸、檢查和安裝機油泵拾取管

1.拆下油底殼。請參閱本組前面的“拆卸油底殼”。

2.拆下帶帽螺釘（C），然后拆下吸油管總成（B）和墊片。

3.清潔并沖洗管和拾取濾網（A）。

4.檢查管子是否有裂紋或阻塞。根據需要更換。

5.安裝帶有新墊片的拾波管總成，并將帶帽螺釘擰緊至規格。

規格

油泵拾取管蓋螺釘扭矩……41牛頓·米（30磅-英尺）

6.安裝油底殼。請參閱本組后面的安裝約翰迪爾John Deere柴油機油底殼。

A屏

拾油管

B-吸油管

C形帶帽螺釘（使用3個）

Remove Engine from 8000 Tractors for Access to Engine Oil Pump

6081HRW Engines used in 8000 Series Tractors are equipped with a front frame/oil sump which is also a structural member of the vehicle. For access to the engine oil pump, the engine must be removed from the  vehicle.

Refer to TM1575 (8100, 8200, 8300, and 8400 Tractors— Repair) for engine removal instructions. (For Tracks models, refer to TM1621.)

Remove Oil Pan

Removing oil pan will allow access to engine oil  pump.

1.      Drain engine oil.

2.      Remove oil pan and discard gasket.

3.Remove all gasket material from oil pan rail and cylinder block mounting surfaces.

IMPORTANT: Oil pan cap screws should have only one flat washer and no lockwasher. If cap screws have flat washers with lock washers, discard them and replace with new hardened flat washers.

Check Crankshaft Gear-to-Oil Pump Drive Gear Backlash

IMPORTANT: Backlash must be at least 0.08 mm (0.003 in.) for helical gear and at least

0.10 mm (0.004 in.) for spur gear. If backlash is less than specification,

replace the oil pump drive gear.

Before removing oil pump, determine if there is adequate backlash between oil pump and crankshaft drive gears.

Specification

Crankshaft Helical Gear-to-Oil

Pump Drive Gear—Backlash .... 0.08 mm (0.003 in.) minimum Crankshaft Spur Gear-to-Oil

Pump Drive Gear—Backlash ...... 0.10 mm (0.004 in.) minimum

Mount dial indicator (A) and measure backlash between pump drive gear (B) and crankshaft gear (C).

Measuring Oil Pump Drive Gear Backlash

Check oil pump gear-to-crankshaft throw clearance.

A—Dial Indicator

Specification    B—Pump Drive Gear

Oil Pump Helical       C—Crankshaft Gear

Gear-to-Crankshaft Throw—

Clearance ...... 0.38 mm (0.0015 in.) minimum

Remove Engine Oil Pump

1.      Loosen drive gear retaining nut (A) one full  turn.

2.      Remove four oil pump housing cap screws with washers (B).

IMPORTANT: Some early engines used grade 5 oil pump mounting cap screws. Replace these cap screws with new grade 8 cap screws when reinstalling pump.

3.      Lift up on oil pump assembly and wiggle assembly          Remove Oil Pump

left-to-right to disengage housing from mounting

dowels.    A—Drive Gear Retaining Nut

B—Oil Pump Housing Cap Screws

4.      Once pump assembly is free from dowels, swing assembly to the right (as viewed from flywheel end) and disengage outlet tube (A) from pump housing.

5.      Remove oil pump drive gear (C) and oil pickup  tube

(B) from pump.

A—Outlet Tube B—Pickup Tube

C—Oil Pump Drive Gear

Inspect and Clean Oil Pump

1.      Visually inspect oil pump for wear or damage.       

2.      Flush pump assembly internally with clean solvent to remove oil. Spin pump gears to help remove solvent. Pump gears should move freely.

3.  Place oil pump on a work bench with

pump-to-cylinder block mounting surface facing

IMPORTANT:  DO NOT disassemble engine oil      upward (same as when mounted on engine).

pump for flushing, inspection, or

performing wear checks. Individual         IMPORTANT:  To help insure accurate wear components of oil pump are not              measurements, be sure the oil pump

available through service parts.      is clean and faces the same way as

Replace pump as a complete  when mounted on the cylinder block. assembly.

NOTE:  Leave pump drive gear installed when making

Never hammer directly on oil pump         checks.

housing as it could cause binding of gears.

Check Drive Shaft End Play

1.      Mount dial indicator with indicator plunger resting against end of pump drive shaft.

2.      Move shaft toward and away from indicator.

If end play exceeds specification, there is excessive wear on pump cover and/or wear on end of pump drive gear.

Specification

Oil Pump Drive Shaft—Maximum

End Play .....  0.15 mm (0.006 in.)

Replace oil pump if end play exceeds specification.

Checking Pump Shaft End Play

Check Drive Shaft Side Movement

1.      Mount dial indicator with indicator plunger resting on one of the hex nut flats.

2.      Move shaft from side-to-side.

If shaft side movement exceeds specification, there is excessive wear in drive shaft bushing and/or drive shaft.

Specification

Oil Pump Drive Shaft—Maximum

Side Movement ......  0.17 mm (0.0065 in.)

Replace oil pump if shaft side movement exceeds specification.

Check Pumping Gear Backlash

1.      Mount dial indicator with plunger resting against side of gear tooth.

2.      Hold idler gear stationary. Slowly rotate drive gear back and forth until contact with idler gear is  left.

If backlash is not within specification, there is excessive pumping gear wear and/or idler shaft and gear bushing wear.

Specification

Oil Pump Drive Gear—Backlash.........  0.33—2.00 mm (0.013—0.079 in.)

If there is less than 0.33 mm (0.013 in.) backlash, re-clean gears and check backlash again.

3.      Replace oil pump if pumping gear backlash exceeds 2.00 mm (0.079 in.).

Inspect Oil Pump Drive Gear

NOTE: Oil pump does not need to be removed from engine, when inspecting drive gear.

Inspect drive gear teeth for chips, cracks, or wear. Replace as necessary.

Adjust Oil Pump Set Screw

Normally the set screw (A) should NOT be adjusted; but if the set screw is altered, the following steps should be followed.

1.      Assemble drive gear and idler gear into pump  housing.

2.      Install oil pump cover (B) and tighten cover-to-housing cap screws to specifications.

Specification

Oil Pump Cover-to-Housing—

Torque ..  41 N•m (30 lb-ft)

3.      Tighten set screw until it contacts idler shaft.

4.      Continue to hold set screw and tighten lock nut (C) to specifications.

Specification

Oil Pump Set Screw Lock Nut—

Torque ......  8 N•m (6 lb-ft)

Do not overtighten set screw or lock nut.

5.      Spin drive gear by hand to assure shaft turns freely in housing. Readjust set screw if shaft does not turn freely.

Install Engine Oil Pump

1.      Install gear (A) onto pump and tighten snug using nut and washer. Final torque will be accomplished after installing pump.

2.      Using a new gasket, install oil pickup tube (B) onto oil pump and tighten cap screws to specifications.

Specification

Oil Pump Intake (Pickup)

Tube-to-Cover—Torque.........  47 N•m (35 lb-ft)

Install Oil Pump Gear and Pickup

A—Oil Pump Drive Gear B—Oil Pickup Tube

3.      Install new O-ring in groove of oil pump housing and lubricate with clean engine oil. Install oil pump outlet tube into oil pump housing.

4.      Swing oil pump assembly over locating dowels and carefully position assembly onto dowels without applying pressure to or causing binding of outlet  tube.

IMPORTANT:  Do not hammer directly on pump

housing as it could cause binding of gears.

5.      Seat pump onto dowels using a hard rubber hammer on outer edge of housing near mounting holes (as shown). Make sure drive gear is properly meshed with crankshaft gear and oil pump outlet tubes are properly positioned (with no binding) in O-ring bores.

IMPORTANT: Some early engines used grade 5 oil pump mounting cap screws. Replace these cap screws with new grade 8 cap screws when reinstalling pump.

6.      Install and tighten oil pump housing-to-cylinder block cap screws to specifications.

Specification

Oil Pump Housing-To-Cylinder

Block—Torque ......  42 N•m (31 lb-ft)

Oil Pump Gear

7.      Tighten oil pump drive gear retaining nut to specifications.

Install Oil Pump Outlet Tube

Specification

Oil Pump Drive Gear Retaining

Nut—Torque ........  54 N•m (40 lb-ft)

A—Oil Pump Drive Gear B—Oil Pump Outlet Tube

 Remove and Install Oil Pump Outlet Tube and Oil Cooler Crossover Tube Adapter

Remove Adapter:

1.      Remove oil pump (shown removed). See REMOVE ENGINE OIL PUMP earlier in this group.

2.      Remove two cap screws securing adapter (A) to cylinder block and remove adapter with oil cooler cross-over tube (B).

3.      Clean all gasket material from mating surfaces and discard.

Install Adapter:

NOTE: Be sure gasket is positioned so that offset matches adapter to avoid blocking oil passages.

1.      Lubricate new O-ring with clean engine oil and install adapter (with cross-over tube) using a new gasket. Make sure tubes are properly positioned in each O-ring bore.

2.      Tighten cap screws to specifications.

Specification

Oil Pump Outlet and Oil Cooler Cross-Over Tube-to-Cylinder

Block Adapter (Internal)—Torque ...  54 N•m (40 lb-ft)

Oil Cooler Crossover Tube and Adapter

A—Adapter

B—Oil Cooler Cross-Over Tube

3.      Install engine oil pump assembly. See INSTALL ENGINE OIL PUMP earlier in this group.

Remove, Inspect, and Install Oil Pump Pickup Tube

1.      Remove oil pan. See REMOVE OIL PAN earlier in this group.

2.      Remove cap screws (C) and remove oil pickup tube assembly (B) and gasket.

3.      Clean and flush tube and pickup screen (A).

4.      Inspect tube for cracks or restrictions. Replace as required.

5.      Install pickup tube assembly with new gasket and tighten cap screws to specifications.

Specification

Oil Pump Pickup Tube Cap

Screws—Torque .......  41 N•m (30 lb-ft)

6.      Install oil pan. See INSTALL ENGINE OIL PAN later in this group.

A—Screen

Oil Pickup Tube

B—Oil Pickup Tube

C—Cap Screws (3 used)

機械雜質 柴油機的燃料供給系中有許多精密配合的偶件，如柴油中存有機械雜質,除可能造成油路堵塞外,還可能加劇上述精密零件的磨損。嚴重時,甚至造成供油系統故障。因此，GB252-87中規定柴油中不允許機械雜質的存在。柴油中機械雜質的測定按GB252一87注①或GB/T511一88的規定執行。

柴油的選擇與使用天水Perkins帕金斯403D-11柴油機技術查詢中心,鐵嶺Perkins帕金斯402D-05約翰迪爾John Deere柴油機曲軸瓦、連桿瓦、大小瓦在什么地方買,阿壩Perkins帕金斯1506A-E88TAG4約翰迪爾John Deere柴油機柴油泵、噴射泵組件多少錢,滄州Perkins帕金斯1204E-E44TTA約翰迪爾John Deere柴油機曲軸前后油封網站,昌吉Perkins帕金斯1103D-33TA約翰迪爾John Deere柴油機配件中心庫一般多少錢,平頂山CAT起動機多少錢一個技術查詢中心,沈陽Perkins帕金斯4012-46TWG2A約翰迪爾John Deere柴油機氣門室蓋罩哪里有,成都Perkins帕金斯403A-11G1約翰迪爾John Deere柴油機進排氣門、墊圈一臺多少錢,黔南Perkins帕金斯403D-07G約翰迪爾John Deere柴油機充電發電機供應服務商,綏化卡特柴油約翰迪爾John Deere柴油機3114配件銷售中心電話,太原珀金斯404約翰迪爾John Deere柴油機配件多少錢,漢中Perkins帕金斯2506C-E15TAG4約翰迪爾John Deere柴油機維修與保養服務一般多少錢,

 柴油機的構造、性能、工作狀態和環境溫度是選用柴油的依據。前面已經提到,對于全負荷轉速高于960r/min的柴油機,選用輕柴油。預燃室式與渦流室式柴油機可選用餾分較寬、較重(自150'C-400'C)的柴油;而直噴式柴油機必須使用餾分較窄、較輕(200'C-360'C)的柴油。當然,選擇柴油時,**重要的考慮因素還是柴油機使用時的環境溫度。

    l.根據當地月風險率為10X的**低氣溫選擇柴油牌號

    柴油的冷濾點與實際操作使用溫度之間有著直接的對應關系,故選擇柴油時,應據柴油的冷濾點,對照當地風險率為10%的**低氣溫選擇柴油牌號。一般可參照以下原則進行選用。

    10號柴油適合于有預熱設備的高速柴油機上使用;

    O號柴油適合于風險率為10X的**低氣溫在4'C以上的地區使用;

    一10號柴油適合于風險率為10%的**低氣溫在-5'C以上的地區使用; .

    一20號柴油適合于風險率為10%的**低氣溫在-5'C一-14'C的地區使用;

    一35號柴油適合于風險率為10%的**低氣溫在-14'C一-29'C的地區使用;

    一50號柴油適合于風險率為10%的**低氣溫在-29'C一-44'C的地區使用。