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Technical Information · issue 16 of 2008

Tank housing, hoses; Ground wire; Summary

IssueTI 16/2008
Engine family 1138

Part changes (3)

WasBecomesWhat the bulletin says
1138 350 0803 1138 350 0805 1 Tank housing (MS 441) The previous tank housing 1138 350 0803 is being replaced by the version 1138 350 0805.
1138 350 0804 1138 350 0806 2 Tank housing (MS 441 C) The previous tank housing 1138 350 0804 is being replaced by the version 1138 350 0806.
1138 440 2200 1138 440 2203 Ground wire The previous ground wire 1138 440 2200 will be replaced by version 1138 440 2203.

Full text

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TI 16/2008 page 1
STIH)

Technical Information                                                                       16.2008

  Chain saws STIHL MS 441, MS 441 C – Series 1138

  Contents
  1. Tank housing, hoses
  2. Ground wire
  3. Summary

  1.      Tank housing, hoses

                                                                   1.1     Tank housing (MS 441)
                                                                   The previous tank housing 1138 350 0803 is being
                                                                   replaced by the version 1138 350 0805.

                                                                   1.2     Tank housing (MS 441 C)
                                                                   The previous tank housing 1138 350 0804 is being
                                                                   replaced by the version 1138 350 0806.

                                                                   1.2.1   Spare parts/service note
                                                                   The new tank housing can also be installed in older
                                                                   machines. The new tank housing will include fuel
                                                                   hose 1138 350 2702 (hose between tank housing
                                                                   and carburetor incl. insulating hose) which must
                                                                   also be replaced at time of service (see b 1.3.1).
                                                                   The previous tank housings will no longer be
                                                     219TI032 KN

                                                                   available from the factory.

  In the future, the tank housing will be equipped with
  fuel hoses with a reduced inner diameter to further
  improve warm starting behavior. An insulating hose
  will also be added to the fuel hose between the tank
  and carburetor.

  TI_16_2008_30_01_01.fm                                                                       englisch / English USA
)m~ge 2                                                                                Technical Information 16.2008

1.3      Hose
All previous hoses are being replaced by the S-
shaped pickup hose 1138 358 7705 and the fuel
hose 1138 350 2702 incl. insulating hose. The new
hoses stand out because of their reduced inner
diameter 0.122 in (3.1 mm).

1.3.1    Hose combinations in the event of
         service
The hoses can be identified according to the
markings.

                                       1                                                                    4
         2                                                                 5

                       3                                                                     3

          1138/00               1138/01                                     1138/05                   1138/04
                                                     219TI033 KN

                                                                                                                        219TI034 KN
previous fuel hoses                                                new fuel hoses

                                           Marking                      Interior diameter        Part numbers in service
Fuel hose (1) and pickup hose (2) in       1138/04                      0.122 in. (3.1 mm)       1138 350 2750
combination with insulating hose (3)       1138/05
Fuel hose (4): includes insulating         1138/04                      0.122 in. (3.1 mm)       1138 350 2702
hose (3)
Pickup hose (5)                            1138/05                      0.122 in. (3.1 mm)       1138 358 7705

Spare parts/service note                                           The pickup hose with the marking "1138/05" and the
                                                                   fuel hose with the marking "1138/04" can be
The pickup hose with the marking "1138/01" and the
                                                                   replaced separately. Combinations of hoses with
fuel hose with the marking "1138/00" must be
                                                                   different inner diameters are not permitted.
replaced as a set in service with the fuel hose kit
1138 350 2750 consisting of pickup and fuel hose                   The previous hoses will no longer be available from
with an inner diameter of 0.122 in. (3.1 mm) and                   the factory.
insulating hose.

                                                                                                    TI_16_2008_30_01_01.fm

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TI 16/2008 page 2
Technical Information 16.2008                                                                                     Page 3

Note regarding installation of the fuel and
insulating hoses
.   Remove air filter and carburetor



                                                                                                                        219TI037 KN
                                                                    .   Coat assembly points with press fluid OH 723

                                                     219TI035 KN
                                   3                                .   Install the fuel pickup hose into the tank housing
                                                                        until the rubber lip completely surrounds the
                                                                        opening
.   Remove AV spring (1) on handlebar, AV
    spring (2) on tank housing and buffer (3)                       .   Install one end of the elbow connector into the
                                                                        fuel hose and the other end into the fuel pickup
                                                                        hose.
                                                      219TI036 KN

                                                                                                                        219TI038 KN
.   Insert the fuel hose through the opening (arrow)
    and coat the outside with press fluid OH 723
.   Slide the insulating hose over the fuel hose –                  .   Route fuel hose with insulating hose as shown
    guide the hoses with the help of a blunt tool                       in picture
    (e.g., screwdriver, punch)

TI_16_2008_30_01_01.fm
)m~ge 4                                                                      Technical Information 16.2008

2.       Ground wire
The previous ground wire 1138 440 2200 will be
replaced by version 1138 440 2203.                                                       l
The new ground wire includes a new cable
protector.
Spare parts/service note
Only the new ground wire is available as a spare
part. In the event of service, use only the new
ground wire 1138 440 2203.

                                                                                                                 219TI030 KN
                                                           Above:  previous ground wire 1138 440 2200
                                                                   (l = 0.374 in. (9.5 mm)
                                                           Bottom: new ground wire 1138 440 2203
                                                                   (l = 0.307 in. (7.8 mm)

3.       Summary
Item     Part name                                  previous              new                          Remarks
 1       Tank housing including Items 7 and 8       1138 350 0803         1138 350 0805                1) 2)
 2       Tank housing (MS 441 C)                    1138 350 0804         1138 350 0806                1) 2)
         including Items 7 and 8
 3       Fuel hose                                  1138 358 7700         ---                          1)
 4       Fuel hose                                  1138 350 2701         ---                          1)
 5       Pickup hose                                1138 358 7701         ---                          1)
 6       Fuel hose;                                 ---
         including Items 7 to 9:                                          1138 350 2750                3)
 7       Fuel hose;                                 ---
         including Item 9:                                                1138 350 2702                4)
 8       Pickup hose                                ---                   1138 358 7705                4)
 9       Hose 3.54 in (90 mm)                       ---                   0000 937 4070
10       Ground wire                                1138 440 2200         1138 440 2203                1) 2)

Modification to be introduced: continuously
Remarks
1) Previous version of part is no longer available from factory.
2 New version of part is also a spare part for older machines
3) New version of part is a spare part for older machines
4) see “Service Notes” b 1.3.1

© ANDREAS STIHL AG & Co. KG, 2008                          Technical Documentation

                                                                                             TI_16_2008_30_01_01.fm

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Technical Information 16.2008               Page 5

                                D1/MTK-bl

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