Measure crankshaft and remount in bearings

AR03.20-D-4355R

Measure crankshaft and remount in bearings

04.09.2018

Engine

646 in model 909

20

Crankshaft

21

Crankshaft bearing shell

22

Thrust plate

23

Thrust plate

24

Crankshaft bearing shell

A

Bearing shells in the cylinder crankcase

B

Bearing shells in the crankshaft bearing caps



Remove

1

Remove crankshaft (20)

AR03.20-D-4351R

2

Knock out main oil duct steel ball

AR01.40-D-8498R



Clean

3

Clean engine parts

 If bearing damage has occurred, it may be necessary to remove any swarf from the main oil duct, the conrod bore holes and crankshaft oil ducts (20) and the crankcase.

Cold degreasing agent/cold cleaning solvent HAKU 1025-920

*BR00.45-Z-1051-04A



Check

4

Check connecting rod for wear and damage

 Visual inspection. Check connecting rod and replace if necessary.

5

Check crankshaft (20) for wear and damage

 Visual inspection. Check crankshaft (20) and replace if necessary.



Install

6

Mount crankshaft (20) radially

AR03.20-D-4355-01R

Crankshaft bearing clearance (when new)

*BE03.20-N-1001-04B

Main bearing shells standard dimension for crankcase and bearing cap(s) dia. 58.00 mm

*BE03.20-N-1001-03B

Main bearing shells standard dimension for crankcase and bearing cap(s) dia. 58.00 mm

*BE03.20-N-1002-03B

Main bearing shells standard dimension for crankcase and bearing cap(s) dia. 58.00 mm

*BE03.20-N-1003-03B

Main bearing shells standard dimension for bearing cap(s) dia. 58.00 mm

*BE03.20-N-1004-03B

Main bearing shells standard dimension for bearing cap(s) dia. 58.00 mm

*BE03.20-N-1005-03B

 Dial gage

*001589532100

The radial mounting of the crankshaft main bearing is fitted by assignment of the crankshaft bearing shells (21, 24) by color marking.



Assign crankshaft bearing shells.

AR03.20-D-4360-01R

7

Mount crankshaft (20) axially

AR03.20-D-4355-02R

Crankshaft bearing clearance (when new)

*BE03.20-N-1001-04B

 Dial gage

*001589532100

 Dial indicator holder

*363589022100

8

Insert the main oil duct steel ball

AR01.40-D-8498R

9

Install crankshaft (20)

AR03.20-D-4351R

Check values for crankshaft main bearing shells

Number

Designation

Engine 646 in model 909

BE03.20-N-1001-03B

Main bearing shells standard dimension for crankcase and bearing cap(s) dia. 58.00 mm

Replacement part additional number (color coding blue)

52

Bearing shell thickness

mm

2,255...2,260

Test specifications for crankshaft bearing clearance

Number

Designation

Engine 646 in model 909

BE03.20-N-1001-04B

Crankshaft bearing clearance (when new)

Radial measurement when new

mm

0,027...0,051

Radial wear limit

mm

0,08

Axial measurement when new

mm

0,100...0,254

Axial wear limit

mm

0,3

Check values for crankshaft main bearing shells

Number

Designation

Engine 646 in model 909

BE03.20-N-1002-03B

Main bearing shells standard dimension for crankcase and bearing cap(s) dia. 58.00 mm

Replacement part additional number (color coding yellow)

54

Bearing shell thickness

mm

2,260...2,265

Check values for crankshaft main bearing shells

Number

Designation

Engine 646 in model 909

BE03.20-N-1003-03B

Main bearing shells standard dimension for crankcase and bearing cap(s) dia. 58.00 mm

Replacement part additional number (color coding red)

Bearing shell thickness

mm

2,265...2,270

Check values for crankshaft main bearing shells

Number

Designation

Engine 646 in model 909

BE03.20-N-1004-03B

Main bearing shells standard dimension for bearing cap(s) dia. 58.00 mm

Replacement part additional number (color coding white)

57

Bearing shell thickness

mm

2,270...2,275

Check values for crankshaft main bearing shells

Number

Designation

Engine 646 in model 909

BE03.20-N-1005-03B

Main bearing shells standard dimension for bearing cap(s) dia. 58.00 mm

Replacement part additional number (color coding violet)

58

Bearing shell thickness

mm

2,275...2,280

Repair materials

Number

Designation

Order number

BR00.45-Z-1051-04A

Cold degreasing agent/cold cleaning solvent HAKU 1025-920

Chemische Werke Kluthe GmbH
Gottlieb-Daimler-Str. 12
69115 Heidelberg
Germany
Tel. +49 6221 5301-0
Fax +49 6221 5301-176
http://kluthe.com