首页技术中心>曲轴研磨指南约翰迪尔John Deere柴油机曲轴主轴颈曲轴连杆轴颈尺寸

曲轴研磨指南约翰迪尔John Deere柴油机曲轴主轴颈曲轴连杆轴颈尺寸

2022/8/30 8:42:01

重要事项：如果要重新约翰迪尔John Deere柴油机研磨曲轴，应进行曲轴研磨，使用以下方法

只有经验丰富的人员才能遵守推荐的指南：

曲轴尺寸和光洁度1.比较曲轴轴颈测量值规格。在检查期间获取，并确定轴颈要重新研磨的尺寸。

约翰迪尔John Deere柴油机曲轴连杆（销）轴颈具有：底切圆角半径。不要2.研磨所有主轴颈或所有连杆当轴颈达到相同要求尺寸时，在该底切区域内研磨。看见使用尺寸过小的轴承。曲轴磨削规格稍后在这个组中。

除标准尺寸的主轴承外，0.292

尺寸小于0.0115英寸和0.552毫米（0.0217英寸）重要：所有主轴颈（切向）圆角

约翰迪尔John Deere柴油机轴承可用于主轴承轴颈。半径不得有任何尖锐的磨痕或划痕。圆角必须

规格：平滑地融入轴颈，并约翰迪尔John Deere柴油机曲轴颊板主轴承尺寸过小。用a检查半径可用外径……0.292 mm（0.0115 in.）和圆角量规。0.552毫米（0.0217英寸）杆（销）轴颈只有0.292毫米（0.0115英寸），必须注意避免

仅适用于尺寸过小的轴承。局部加热，经常产生磨削裂纹。冷却过大量使用尺寸过小的杆（销）轴颈冷却液进行磨削时的规格曲轴。不要将砂轮外径为0.292 mm（0.0115 in.）的可用轴承推压到工件中。

如果轴颈呈锥形、不圆、刻痕或用轴颈研磨曲轴损坏，研磨约翰迪尔John Deere柴油机曲轴并安装正确的逆时针转动装置，如图所示尺寸过小的轴承。从曲轴前端开始。

研磨或抛光对面的轴颈

重要事项：如果使用尺寸过小的轴承，请注意研磨方向。检查后的轴承间隙

轴承盖已拧紧至3。将地面打磨或研磨至规定扭矩。如果尺寸过小，则进行表面处理，以防止轴颈过度磨损。轴承太紧，间隙过大

如果不在规格范围内，则将轴颈和轴承上的所有机油擦拭干净。这将导致零件过早磨损。

注：生产曲轴为感应淬火规格

并在工厂进行喷丸处理。现场超大推力垫圈由于可用外径为0.18 mm（0.007 in.），不建议进行喷丸处理曲轴端隙……0.038-0.380 mm所需设备和零件几何形状（0.0015-0.0150英寸）当推力面重新研磨，并用5.石材打磨轴颈上所有油孔的边缘时

使用超大垫圈，曲轴端隙表面光滑，以提供半径规格必须保持在约1.50毫米（0.060英寸）以内。0.038-0.380毫米（0.0015-0.0150英寸）。看见6.检查曲轴端隙。完成磨削后，检查曲轴是否这一组。用荧光磁粉法或类似方法检测裂纹。去磁化4. 约翰迪尔John Deere柴油机曲轴推力面是否磨损或检查后曲轴是否磨损。过度开槽，重新研磨和抛光。维持每个止推表面7之间的规定半径。彻底清洁曲轴和油道以及轴承轴颈。带溶剂的超大止推垫圈。用压缩空气干燥。

两个0.18毫米（0.007英寸）的超大垫

可获得的参见本组前面的推力轴承新零件规格。

曲轴磨削规范

项目测量规范

约翰迪尔John Deere柴油机主轴颈和连杆轴颈表面光洁度：0.20 Um（8 AA）

推力轴颈表面光洁度0.40 Um（16 AA）

杆轴颈（底切）圆角半径4.10-4.37 mm（0.158-0.172 in.）

主轴颈（切向）圆角半径3.94-4.44 mm（0.155-0.0175 in.）

推力轴颈（切向）圆角半径3.56-4.06 mm（0.140-0.160 in.）

推力轴颈宽度44.387-44.487 mm（1.7475-1.7515英寸）

曲轴主轴颈相对于1号轴颈的最大跳动为0.13 mm（0.0051 in.）和7号轴颈

相邻曲轴主轴颈之间的最大跳动为0.06 mm（0.0024 in.）

曲轴主轴颈（使用外径95.201-95.227 mm（3.7480-标准轴承）3.7491英寸。）

曲轴连杆轴颈（使用外径76.149-76.175 mm（2.9980-标准轴承）2.9990英寸。）

曲轴主轴颈（使用外径94.909-94.935 mm（3.73666-尺寸小于3.7376英寸的0.292毫米（0.0115英寸）

轴承）曲轴连杆轴颈（使用外径0.292，75.857-75.883 mm（2.9865-尺寸小于0.0115英寸的轴承）2.9875英寸曲轴主轴颈（使用外径94.649-94.675 mm（3.7263-尺寸小于3.7274英寸0.552毫米（0.0217英寸）轴承）1尺寸小于10.552 mm（0.0217 in.）的轴承仅适用于曲轴主轴颈。

RG，RG347101176-19-23OCT97-1/1

Crankshaft Grinding Guidelines

IMPORTANT: Crankshaft grinding should be done If the crankshaft is to be reground, use the following

ONLY be experienced personnel on recommended guidelines:

crankshaft size and finish 1. Compare the crankshaft journal measurements

specifications. taken during inspection and determine the size to which the journals are to be reground.

Crankshaft rod (pin) journals have

an undercut fillet radius. DO NOT 2. Grind all main journals or all connecting rod

grind within this undercut area when journals to the same required size. See

undersize bearings are used. CRANKSHAFT GRINDING SPECIFICATIONS later

in this group.

In addition to the standard size main bearings, 0.292

mm (0.0115 in.) and 0.552 mm (0.0217 in.) undersize IMPORTANT: All main journal (tangential) fillets

bearings are available for main bearing journals. radii must be free of any sharp grind marks or scratches. The fillet must

Specification blend smoothly into the journal and

Undersized Main Bearings crank cheek. Check the radii with a

Available—OD ..... 0.292 mm (0.0115 in.) and fillet gauge.

0.552 mm (0.0217 in.)

Rod (pin) journals have only 0.292 mm (0.0115 in.) Care must be taken to avoid

undersize bearings only. localized heating which often produces grinding cracks. Cool the

Specification crankshaft while grinding by using Undersized Rod (Pin) Journal coolant generously. DO NOT crowd Bearings Available—OD .................................. 0.292 mm (0.0115 in.) the grinding wheel into the work.

If journals are tapered, out-of-round, scored, or Grind crankshaft with journals

damaged, grind the crankshaft and install the proper turning counterclockwise, as viewed

undersize bearings. from the front end of the crankshaft.

Lap or polish journals in opposite

IMPORTANT: If undersize bearings are used, direction of grinding. check bearing clearance after

bearing caps have been tightened to 3. Polish or lap the ground surfaces to the specified specified torque. If undersize finish to prevent excessive wear of the journals. bearings are too tight and clearance

is not within specifications, the journal and bearing will be wiped clean of all oil. This would result in premature wear of parts.

NOTE: Production crankshafts are induction hardened Specification

and shotpeened at the factory. Field Oversize Thrust Washer

shotpeening is not recommended due to the Available—OD ....... 0.18 mm (0.007 in.)

Crankshaft—End Play ...... 0.038—0.380 mm

equipment required and part geometry. (0.0015—0.0150 in.)

When thrust surfaces are reground and an 5. Stone the edge of all oil holes in the journal

oversized washer is used, crankshaft end play surfaces smooth to provide a radius of

specification must be maintained to within approximately 1.50 mm (0.060 in.).

0.038—0.380 mm (0.0015—0.0150 in.). See

CHECK CRANKSHAFT END PLAY earlier in 6. When finished grinding, inspect the crankshaft for

this group. cracks with the Fluorescent Magnetic Particle method, or similar method. De-magnetize

4. If the thrust surfaces of the crankshaft are worn or crankshaft after inspection. grooved excessively, regrind and polish. Maintain

the specified radius between each thrust surface 7. Thoroughly clean the crankshaft and oil passages and the bearing journal. An oversized thrust washer with solvent. Dry with compressed air.

and two 0.18 mm (0.007 in.) oversized washers are

available. See THRUST BEARING NEW PART SPECIFICATIONS earlier in this group.

Crankshaft Grinding Specifications

Item Measurement Specification

Main and Rod Journal Surface Finish Lap 0.20 Um (8 AA)

Thrust Journal Surface Finish Lap 0.40 Um (16 AA)

Rod Journal (Undercut) Fillet Radius 4.10—4.37 mm (0.158—0.172 in.)

Main Journal (Tangential) Fillet Radius 3.94—4.44 mm (0.155—.0175 in.)

Thrust Journal (Tangential) Fillet Radius 3.56—4.06 mm (0.140—0.160 in.)

Thrust Journal Width 44.387—44.487 mm (1.7475—

1.7515 in.)

Crankshaft Main Journal Maximum Runout Relative to No. 1 0.13 mm (0.0051 in.) and No. 7 Journals

Crankshaft Main Journal Maximum Runout Between Adjacent 0.06 mm (0.0024 in.)

Cylinders

Crankshaft Main Journal (Using OD 95.201—95.227 mm (3.7480—

Standard Bearings) 3.7491 in.)

Crankshaft Rod Journal (Using OD 76.149—76.175 mm (2.9980—

Standard Bearings) 2.9990 in.)

Crankshaft Main Journal (Using OD 94.909—94.935 mm (3.73666—

0.292 mm (0.0115 in.) Undersize 3.7376 in.)

Bearings)

Crankshaft Rod Journal (Using 0.292 OD 75.857—75.883 mm (2.9865—

mm (0.0115 in.) Undersize Bearings) 2.9875 in.)

Crankshaft Main Journal (Using OD 94.649—94.675 mm (3.7263—

0.552 mm (0.0217 in.) Undersize 3.7274 in.)

Bearings)1

10.552 mm (0.0217 in.) undersize bearing sizes are available for crankshaft main journals only.

RG,RG34710,1176 –19–23OCT97–1/1

防冻液应当加多少为宜

有很多驾驶员打电话给我们，反映拖拉机的防冻液消耗的快，问他们情况，

说：加了一些到两个刻度线中间的位置，没过几天就减少不少，到下刻线的位置了，之后又加防冻液到中间，过几天还是如此。

在这里，我讲一下这个问题，因为我们原来对这个问题也没有在意，通过

用户给我们打电话和我们下去的咨询情况来看，这是一个值得讲一讲的问题。

我们的拖拉机的补充水箱的观察窗的刻度线为上、下两个刻度线，上刻度

线表示热车时的防冻液的位置，商丘Perkins帕金斯1106A-7-TAG2约翰迪尔John Deere柴油机机油泵企业,石嘴山Perkins帕金斯854F-E34TA约翰迪尔John Deere柴油机四配套哪家好,九江Perkins帕金斯4016TAG1A约翰迪尔John Deere柴油机控制屏企业,泰州Perkins帕金斯2806C-E18TAG3柴油机去哪买专业服务中心,孝感Perkins帕金斯发电机组配件销售企业,怀化Perkins帕金斯403F-15TG约翰迪尔John Deere柴油机销售售后代理商专业服务中心,毕节Perkins帕金斯1206E-E66TA约翰迪尔John Deere柴油机喷油嘴多少钱技术查询中心,保定Perkins帕金斯1106D-E70TAG5约翰迪尔John Deere柴油机曲轴前后油封费用,巴彦淖尔Perkins帕金斯403D-15T约翰迪尔John Deere柴油机启动马达网站,厦门康明斯配件供应商费用报价单,临夏Perkins帕金斯1103A-33TG2约翰迪尔John Deere柴油机喷油嘴多少钱大概的价钱,而下刻度线表示凉车时的防冻液的位置，我们在加防冻液时应当是在凉车时加，加的数量应当是比下刻度线略高一点（高出约1厘米左右），如果加的太多防冻液会在工作时自然消耗掉。所以各位在加防冻液时应当适量，不要多加，因为多加的防冻液是会损耗掉的，既费钱又费工。