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Technical Information · issue 15 of 2002

Optimized Main Bearing Mount

Model 088 Chainsaws – Series 1124

IssueTI 15/2002
Engine family 1124

Full text

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TI 15/2002 page 1
Technical Information

                                                                                                         15.2002
Model 088 Chainsaws – Series 1124

Contents
1. Optimized Main Bearing Mount
   1.1 Crankcase

   1.2 Main Bearing

   1.3 Service Note
   1.4 Summary

1.    Optimized Main Bearing Mount

1.1   Crankcase                                                    fo
                                                                  1.2   Main Bearing
The previous clutch side of the crankcase will be                 Ball bearing 9523 003 4386, with modified fit, will be
replaced by a new version from serial number                      installed in the new crankcase half in place of the
1 54 603 855 to further enhance service life.                     previous ball bearing 9523 003 4385.

A steel ring is integrally cast in the new crankcase
                                                                  1.3   Service Note
half in the area of the main bearing.
                                                                  The new ball bearing may only be installed in the
                                                                  new crankcase.

                                                                  The previous ball bearing remains available for

                                                                  older machines or the previous crankcase without
                                                                  an integrally cast steel ring.

                                                    171TI023 KN

Left: Previous clutch side of crankcase without
steel ring

Right:New clutch side of crankcase with intergrally
cast steel ring (black in illustration)

TI_15_2002_02_01_01.fm                                                                                   english / USA

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