AR03.20-T-4463B | Inspect crankshaft | 29.6.00 |
ENGINE 441.980 in MODEL 613.355 /364 /365
ENGINES 402.970, 446.938 in MODEL 613.455 /485
T03.20-0014-01
W03.20-0009-01
T03.20-0006-01
Inspection of hardness of bearing journals
1 Hardness tester
Inspection or radial, axial runout
2 Dial gage
3 Dial indicator holder
Measurement of dimensional tolerance of bearing journals
| Remove | ||
1 | Remove crankshaft | ||
| Disassemble | ||
2 | Take off counterweights of crankshaft | ||
| Inspect | ||
3 | Inspect crankshaft for cracks | Inspect with a crack inspection machine. Replace crankshaft, if necessary. | |
4 | Inspect hardness of bearing journals | Replace crankshaft, if necessary. | |
Hardness of crankshaft journals | |||
5 | Inspect bearing journals of conrod and crankshaft bearings for scores and dimensional tolerance | Define repair size, if necessary. | |
Diameter of crankshaft bearing journals | |||
Diameter of conrod bearing journals | |||
6 | Inspect radial and axial runout of crankshaft | | |
The measurements must be carried out with the crankshaft mounted at the first and last bearing journal. If necessary, straighten crankshaft with the aid of a crankshaft straightening press. If straightening is carried out, ensure that the crankshaft is mounted at the first and last bearing journal and that pressure is applied only at the fit bearing. | |||
Permissible runout of crankshaft | |||
Permissible radial runout of flange for crankshaft sprocket | |||
Permissible axial runout of flange for crankshaft sprocket | |||
7 | Inspect centering hole in output flange | Re-work centering hole, if necessary. | |
| Assemble | ||
8 | Fit on counterweights of crankshaft | ||
| Inspect | ||
9 | Inspect imbalance of crankshaft | Inspection of imbalance of crankshaft on crankshaft balancing machine. Mount crankshaft at first and last bearing journal for this step. | |
Permissible imbalance (without flywheel/ring gear carrier) | |||
If the measurements of the imbalance is greater than the permissible maximum: | |||
Balance crankshaft. | |||
| Install | ||
10 | Install crankshaft |
Inspection and setting data of crankshaft
Number | Designation | Engine 402.970 | Engine 441.980 | Engine 446.938 | ||
BE03.20-N-1001-02I | Diameter of crankshaft bearing | Normal | mm | 103,98...104,00 | 103,98...104,00 | 103,98...104,00 |
Standard I | mm | 103,88...103,90 | 103,88...103,90 | 103,88...103,90 | ||
Repair size I | mm | 103,73...103,75 | 103,73...103,75 | 103,73...103,75 | ||
Repair size II | mm | 103,48...103,50 | 103,48...103,50 | 103,48...103,50 | ||
Repair size III | mm | 102,98...103,00 | 103,23...103,25 | 103,23...103,25 | ||
.Repair size IV | mm | - | 102,98...103,00 | 102,98...103,00 | ||
BE03.20-N-1002-02I | Diameter of conrod | Normal | mm | 89,98...90,00 | 89,98...90,00 | 89,98...90,00 |
Standard I | mm | 89,88...89,90 | 89,88...89,90 | 89,88...89,90 | ||
Repair size I | mm | 89,73...89,75 | 89,73...89,75 | 89,73...89,75 | ||
Repair size II | mm | 89,48...89,50 | 89,48...89,50 | 89,48...89,50 | ||
Repair size III | mm | 88,98...89,00 | 89,23...89,25 | 89,23...89,25 | ||
.Repair size IV | mm | - | 88,98...89,00 | 88,98...89,00 | ||
BE03.20-N-1005-02I | Hardness of crankshaft journals | over two thirds of circumference | HRC | 46 | - | - |
total | HR. | 53 (3) | 56 (3) | 56 (3) | ||
BE03.20-N-1006-02I | Permissible imbalance of crankshaft | g/cm | 60 | 60 | 60 | |
BE03.20-N-1007-02I | Permissible runout of crankshaft | mm | 0,06 | 0,06 | 0,06 | |
BE03.20-N-1008-02I | Permissible radial runout of flange for crankshaft sprocket | mm | 0,02 | 0,02 | 0,02 | |
BE03.20-N-1009-02I | Permissible axial runout of flange for crankshaft sprocket | mm | 0,02 | 0,02 | 0,02 | |
363 589 02 21 00
Hardness tester
Dial gage holder
Dial gage
001 589 53 21 00
000 589 20 21 00
Commercially available tools