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在维修保养约翰迪尔强鹿柴油机为什么要确定机油泵和曲轴驱动齿轮之间是否有足够的齿隙

发布日期:2022-8-31 9:53:39

在维修保养约翰迪尔强鹿柴油机为什么要确定机油泵和曲轴驱动齿轮之间是否有足够的齿隙

8000系列拖拉机中使用的6081HRW约翰迪尔John Deere柴油机配备了前车架/油底壳,它也是车辆的结构部件。为了接近约翰迪尔John Deere柴油机机油泵,必须将约翰迪尔John Deere柴油机从车辆上拆下。

有关约翰迪尔John Deere柴油机拆卸说明,请参阅TM15758100820083008400拖拉机-维修)。(有关履带型号,请参阅TM1621。)

拆下油底壳拆下油底壳可以接近约翰迪尔John Deere柴油机机油泵。

1.排空约翰迪尔John Deere柴油机机油。

2.拆下John Deere柴油机油底壳并丢弃垫片。

3.John Deere柴油机油底壳导轨和缸体安装表面上移除所有垫片材料。

重要事项:油底壳带帽螺钉只能有一个平垫圈,不能有锁紧垫圈。如果带帽螺钉有带锁紧垫圈的平垫圈,则将其丢弃,并更换为新的硬化平垫圈。

检查曲轴齿轮到机油泵驱动齿轮的齿隙重要事项:斜齿轮的齿隙必须至少为0.08毫米(0.003英寸),且至少为正齿轮为0.10毫米(0.004英寸)。如果齿隙小于规格,

更换机油泵驱动齿轮。

拆卸机油泵前,确定机油泵和曲轴驱动齿轮之间是否有足够的齿隙。

规格

曲轴斜齿轮至油

John Deere柴油机泵驱动齿轮齿隙……曲轴正齿轮至油的最小间隙为0.08 mm0.003 in.

John Deere柴油机泵驱动齿轮齿隙……最小0.10毫米(0.004英寸)安装千分表(A),并测量泵驱动齿轮(B)和曲轴齿轮(C)之间的齿隙。

测量油泵驱动齿轮齿隙

检查油泵齿轮到曲轴的间隙。

千分表

B泵驱动齿轮规格油泵螺旋C形曲轴齿轮齿轮至曲轴行程-间隙……最小0.38毫米(0.0015英寸)

拆下约翰迪尔John Deere柴油机机油泵

1.松开驱动齿轮固定螺母(A)一整圈。

2.拆下四个带垫圈的油泵壳体带帽螺钉(B)。

重要事项:一些早期约翰迪尔John Deere柴油机使用5级油泵安装带帽螺钉。重新安装泵时,用新的8级带帽螺钉更换这些带帽螺钉。

3.提起油泵总成并晃动总成,拆下油泵从左到右将壳体从支座上分离销钉。A驱动齿轮固定螺母B-油泵壳体带帽螺钉

4.一旦泵组件没有定位销,将组件向右旋转(从飞轮端看),并将出口管(A)从泵壳上脱开。

5.拆下油泵驱动齿轮(C)和拾油管(B 来自泵。A-出口管B-拾取管C-油泵驱动齿轮

检查和清洁油泵

1.目视检查油泵是否磨损或损坏。

2.用清洁溶剂冲洗泵总成内部,以清除油。旋转泵齿轮以帮助去除溶剂。泵齿轮应能自由移动。

3.将油泵放在工作台上

泵至缸体安装面朝向

重要事项:不要向上拆卸约翰迪尔John Deere柴油机机油(与安装在约翰迪尔John Deere柴油机上时相同)。冲洗、检查用泵,或进行磨损检查。个别重要事项:为了帮助确保油泵的磨损部件不是测量值,请确保油泵可通过维修部件获得。是干净的,面向与安装在缸体上时,将泵作为一个整体更换。装配注意:制造时,保持泵驱动齿轮已安装

切勿直接锤击机油泵止回阀。外壳,因为它可能导致齿轮卡住。检查驱动轴端隙

1.安装千分表,使指示器柱塞靠在泵驱动轴端部。

2.将轴移向和移离指示器。

如果端隙超过规格,则泵盖过度磨损和/或泵驱动齿轮端部磨损。

规格

油泵驱动轴最大值端隙……0.15毫米(0.006英寸)如果端隙超过技术规格,则更换油泵。检查泵轴端隙检查驱动轴侧移

1.安装千分表,使指示器柱塞靠在一个六角螺母平面上2.将轴从一侧移动到另一侧。

如果轴侧移动超过规格,则表明驱动轴衬套和/或驱动轴过度磨损。

规格

油泵驱动轴最大值侧向移动……0.17毫米(0.0065英寸)

如果轴侧移动超过规格,则更换油泵。

检查泵送齿轮齿隙

1.安装千分表,使柱塞靠在齿轮齿侧。

2.保持惰轮静止。缓慢地前后旋转驱动齿轮,直到与惰轮接触。

如果齿隙不在技术规格范围内,则泵送齿轮过度磨损和/或惰轮轴和齿轮衬套磨损。

规格

John Deere柴油机油泵驱动齿轮齿隙………0.33-2.00 mm0.013-0.079 in.)如果齿隙小于0.33毫米(0.013英寸),则重新清洁齿轮并再次检查齿隙。

3.如果John Deere柴油机泵送齿轮齿隙超过2.00 mm0.079 in.),则更换油泵。

检查油泵驱动齿轮

注意:检查驱动齿轮时,不需要从约翰迪尔John Deere柴油机上拆下机油泵。

检查驱动齿轮齿有无碎屑、裂纹或磨损。必要时更换。

调整油泵固定螺钉

正常情况下,不应调整定位螺钉(A);但是,如果调整螺钉,则应遵循以下步骤。

1.将驱动齿轮和惰轮装配到泵壳体内。

2.安装机油泵盖(B),并将盖拧紧至外壳带帽螺钉,使其符合规范。

规格

机油泵盖至壳体-扭矩..41牛顿·米(30-英尺)

3.拧紧固定螺钉,直到其接触惰轮轴。

4.继续固定固定螺钉,并将锁紧螺母(C)拧紧至规范。

规格

油泵固定螺钉锁紧螺母-扭矩……8牛顿·米(6-英尺)不要过度拧紧固定螺钉或锁紧螺母。

5.用手旋转驱动齿轮,以确保轴在壳体中自由转动。如果轴不能自由转动,重新调整定位螺钉。

安装约翰迪尔John Deere柴油机机油泵

1.将齿轮(A)安装到泵上,并使用螺母和垫圈拧紧。最终扭矩将在安装泵后完成。

2.使用新垫片,将吸油管(B)安装到油泵上,并将带帽螺钉拧紧至规格。

规格

油泵进气(捡拾器)管到盖的扭矩………47牛顿·米(35-英尺)

安装油泵齿轮和捡拾器

A-油泵驱动齿轮B-拾油管

3.将新O形圈安装到机油泵壳体的凹槽中,并用清洁的约翰迪尔John Deere柴油机机油润滑。将机油泵出口管安装到机油泵壳体中。

4.将油泵总成旋转到定位销上,并小心地将总成定位到定位销中,而不会对出口管施加压力或导致出口管卡住。

重要事项:不要直接锤击泵外壳,因为它可能导致齿轮卡住。

5.在安装孔附近的外壳外缘使用硬橡胶锤将泵固定在定位销上(如图所示)。确保驱动齿轮与曲轴齿轮正确啮合,油泵出口管在O形圈孔中正确定位(无卡滞)。

重要事项:一些早期约翰迪尔John Deere柴油机使用5级油泵安装带帽螺钉。重新安装泵时,用新的8级带帽螺钉更换这些带帽螺钉。

6.按照规范安装并拧紧油泵壳体至气缸体的带帽螺钉。

规格

油泵壳体至气缸缸体扭矩……42牛顿·米(31-英尺)油泵齿轮

7.将油泵驱动齿轮固定螺母拧紧至规格。

安装油泵出口管

规格

油泵驱动齿轮固定

螺母扭矩…….54牛•米(40磅英尺)

A-油泵驱动齿轮B-油泵出口管

拆卸和安装机油泵出口管和机油冷却器跨接管适配器

卸下适配器:

1.拆下机油泵(图示为已拆下)。请参阅本组前面的“拆卸约翰迪尔John Deere柴油机机油泵”。

2.拆下将适配器(A)固定到气缸体的两个带帽螺钉,并拆下带有机油冷却器转换管(B)的适配器。

3.清洁配合面上的所有垫片材料并丢弃。

安装适配器:

注意:确保垫片的位置使偏移量与适配器匹配,以避免堵塞油道。

1.用清洁的约翰迪尔John Deere柴油机机油润滑新O形圈,并使用新垫片安装适配器(带交叉管)。确保管正确定位在每个O形环孔中。

2.按照规范拧紧带帽螺钉。

规格

油泵出口和机油冷却器跨接管至气缸块适配器(内部)-扭矩…54牛顿·米(40-英尺)机油冷却器跨接管和适配器

A适配器

B-油冷却器交叉管

3.安装约翰迪尔John Deere柴油机油泵总成。请参阅本组前面的安装约翰迪尔John Deere柴油机机油泵。

拆卸、检查和安装机油泵拾取管

1.拆下油底壳。请参阅本组前面的“拆卸油底壳”。

2.拆下带帽螺钉(C),然后拆下吸油管总成(B)和垫片。

3.清洁并冲洗管和拾取滤网(A)。

4.检查管子是否有裂纹或阻塞。根据需要更换。

5.安装带有新垫片的拾波管总成,并将带帽螺钉拧紧至规格。

规格

油泵拾取管盖螺钉扭矩……41牛顿·米(30-英尺)

6.安装油底壳。请参阅本组后面的安装约翰迪尔John Deere柴油机油底壳。

A

拾油管

B-吸油管

C形带帽螺钉(使用3个)

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)

机械杂质 柴油机的燃料供给系中有许多精密配合的偶件,如柴油中存有机械杂质,除可能造成油路堵塞外,还可能加剧上述精密零件的磨损。严重时,甚至造成供油系统故障。因此,GB252-87中规定柴油中不允许机械杂质的存在。柴油中机械杂质的测定按GB25287注①或GB/T51188的规定执行。

柴油的选择与使用天水Perkins帕金斯403D-11柴油机技术查询中心,铁岭Perkins帕金斯402D-05约翰迪尔John Deere柴油机曲轴瓦、连杆瓦、大小瓦在什么地方买,阿坝Perkins帕金斯1506A-E88TAG4约翰迪尔John Deere柴油机柴油泵、喷射泵组件多少钱,沧州Perkins帕金斯1204E-E44TTA约翰迪尔John Deere柴油机曲轴前后油封网站,昌吉Perkins帕金斯1103D-33TA约翰迪尔John Deere柴油机配件中心库一般多少钱,平顶山CAT起动机多少钱一个技术查询中心,沈阳Perkins帕金斯4012-46TWG2A约翰迪尔John Deere柴油机气门室盖罩哪里有,成都Perkins帕金斯403A-11G1约翰迪尔John Deere柴油机进排气门、垫圈一台多少钱,黔南Perkins帕金斯403D-07G约翰迪尔John Deere柴油机充电发电机供应服务商,绥化卡特柴油约翰迪尔John Deere柴油机3114配件销售中心电话,太原珀金斯404约翰迪尔John Deere柴油机配件多少钱,汉中Perkins帕金斯2506C-E15TAG4约翰迪尔John Deere柴油机维修与保养服务一般多少钱,

 柴油机的构造、性能、工作状态和环境温度是选用柴油的依据。前面已经提到,对于全负荷转速高于960r/min的柴油机,选用轻柴油。预燃室式与涡流室式柴油机可选用馏分较宽、较重(150'C-400'C)的柴油;而直喷式柴油机必须使用馏分较窄、较轻(200'C-360'C)的柴油。当然,选择柴油时,**重要的考虑因素还是柴油机使用时的环境温度。

    l.根据当地月风险率为10X**低气温选择柴油牌号

    柴油的冷滤点与实际操作使用温度之间有着直接的对应关系,故选择柴油时,应据柴油的冷滤点,对照当地风险率为10%**低气温选择柴油牌号。一般可参照以下原则进行选用。

    10号柴油适合于有预热设备的高速柴油机上使用;

    O号柴油适合于风险率为10X**低气温在4'C以上的地区使用;

    10号柴油适合于风险率为10%**低气温在-5'C以上的地区使用; .

    20号柴油适合于风险率为10%**低气温在-5'C-14'C的地区使用;

    35号柴油适合于风险率为10%**低气温在-14'C-29'C的地区使用;

    50号柴油适合于风险率为10%**低气温在-29'C-44'C的地区使用。

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