Technical Information · issue 35 of 1999

044: Tank housing; HD 17 / HD 17 A carburetor; HD

Model 044 Chainsaws - Series 1128

Part changes (3)

Full text

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Technical Information

                                                                                                        35.1999
Model 044 Chainsaws - Series 1128

Contents
1. Tank housing
   1.1 Collar screws
   1.2 Slotted nut
   1.3 Service note
   1.4 Summary
2. HD 17 / HD 17 A carburetor
   2.1 Full-load semi-fixed jet
   2.2 Low speed screw
   2.3 Summary
3. HD 15 A / HD 15 B carburetor

1.    Tank housing

1.1   Collar screws                                             1.3    Service note
Collar screws 1125 122 6600 in tank housing                     .     Slotted nuts with the shorter thread length may
1128 350 0813 have been replaced by collar screws                     be installed only with the shorter collar screws
1128 122 6606 which are 2 mm longer.                                  (a = 48 mm)
This simplifies the assembly of some models.                    .     If the collar screw projects 50 mm (a) from the
                                                                      tank housing, use only the new version of the
1.2   Slotted nut                                                     slotted nuts with a thread length of 10.5 mm
The depth of the tapped hole in the slotted nut
1124 141 8300 has been increased to suit the
longer collar screws.
                                                                                 a

                                                                                                                    132TI027 KN
                                                  132TI025 KN

              8,5 mm              10,5 mm
               (0,3")              (0,4")

TI_35_1999_30_01.fm                                                                                     english / USA
)m~ge 2                                                                       Technical Information 35.1999

1.4    Summary

Item      Part Name                                        Previous        New                     Rem.
 4        Tank housing; including item 5                   1128 350 0813   1128 350 0813           1)
 5        Collar screw                                     1125 122 6600   1128 122 6606           2)
 6        Slotted nut                                      1124 141 8300   1124 141 8300           3)
Modification to be introduced: in progress
Remarks
1) Unmodified version of part will be supplied until existing factory stocks are exhausted
2) Previous version of part remains available for other models
3) Previous version of part is no longer available from factory

2.     HD 17 / HD 17 A carburetor
The HD 17 carburetor changes to an HD 17 A as a
result of the following modifications.

2.1    Full-load semi-fixed jet
                                                   145TI012 KN

The previous full-load semi-fixed jet
1128 121 5602 (Ø 0.70) will be replaced by the new
version 1128 121 5605 (Ø 0.66).
Version 1122 121 5604 (Ø 0.64) is available as a
high altitude jet.

2.2    Low speed screw
The previous low speed screw 1128 122 6804
(taper angle 10 °) has been deleted and replaced by
version 1128 122 6806 (taper angle 11°).

                                                                                             TI_35_1999_30_01.fm

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Technical Information 35.1999                                                                   Page 3

2.3    Summary

Item     Part Name                                 Previous                New             Rem.
 1       Carburetor HD 17;                         1128 120 0622           ---             1)
         including items 3, 4
 2       Carburetor HD 17 A;                       ---                     1128 120 0622   1)
         including items 3, 4
 3       Full-load semi-fixed jet                  1128 121 5602           1128 121 5605   1)
 4       Low speed screw                           1128 122 6804           1128 122 6806   1)
 5       High altitude jet                         1128 121 5605           1122 121 5604   1)
Modification to be introduced: in progress
Remarks
1) Only modified version of part is available from factory

3.     HD 15 A / HD 15 B carburetor
The HD 15 A carburetor changes to HD 15 B as a
result of the following modification.
The previous low speed screw 1128 122 6805
(taper angle 10 °) has been deleted and replaced by
version 1128 122 6807 (taper angle 11°).

Summary

Item     Part Name                                 Previous                New             Rem.
 1       Carburetor HD 15 A;                       1128 120 0625           ---             1)
         including item 3
 2       Carburetor HD 15 B;                       ---                     1128 120 0625   1)
         including item 3
 3       Low speed screw                           1128 122 6805           1128 122 6807   1)
Modification to be introduced: in progress
Remarks
1) Only modified version of part is available from factory

Last Technical Information on models 044, 046: 03.1999

© 1999 Andreas STIHL AG & Co.                                Technical Documentation
  Waiblingen                                                 D1/MTK-st                            6664

TI_35_1999_30_01.fm

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