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Technical Information · issue 31 of 2001

New Sales Designations for 034, 036, 036 QS; Tank

Model 036, 036 QS Chainsaws – Series 1125

IssueTI 31/2001
Engine family 1125

Part changes (4)

WasBecomesWhat the bulletin says
1125 350 0813 1125 350 0818 The previous tank housings 1125 350 0813 and 1125 350 0815 will be replaced by the new versions 1125 350 0818 and 1125 350 0819.
1121 350 5802 0000 350 5800 The previous tank vent 1121 350 5802 will be replaced by the new version 0000 350 5800.
1125 020 2103 1125 020 2120 Crankcase The previous crankcases 1125 020 2103 (034 036) An intake air preheating kit 1125 007 1012 (special wiill be replaced by the version 1125 020 2120.
1128 162 0800 1125 160 2005 In shoes 1128 162 0800 will be replaced by version future, replacement fan housings for all Series 1125 1125 160 2005 with clutch shoes 1128 162 0806 to models will be supplied under part number accept a new protective washer 1128 162 1001.

Full text

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TI 31/2001 page 1
Technical Information

                                                                                                        31.2001
Model 036, 036 QS Chainsaws – Series 1125

Contents
1. New Sales Designations for
   036, 036 QS

2. Tank Caps

3. Tank Housing
4. Crankcase
5. Fan Housing (round nameplate)

6. Shroud
7. Clutch (036, 036 QS only)
8. Spare Parts

9. Summary

1.   New Sales Designations for
     036, 036 QS
                                                                2.1
                                                                .
                                                                    fo Benefits
                                                                      Can be opened and closed without tools.
Models 036 and 036 QS will be renamed                           .     Hinged clip for fast and simple operation.
STIHL MS 360 and MS 360 C to bring them into                    .     Hinged clip snaps into “closed” position.
line with the new naming structure (see TI 25.2000).

                                                                .     Same type of cap for fuel and oil tanks.
2.   Tank Caps

                                                  176TI000 KN

The new models are equipped with newly
developed caps for the oil and fuel tanks which are
easier to use. The filler openings in the crankcase
and tank housing have been modified for the new
caps.

TI_31_2001_03_01_01.fm                                                                                  english / USA
)m~ge 2                                                                            Technical Information 31.2001

2.2    Operation

2.2.1 Opening                                                   2.2.2 Closing

                                                                                                                   176TI003 KN
                                                  176TI001 KN

.     Swing the clip open.                                      .   Place cap in position with clip up – marks (see
                                                                    arrows) must line up.

                                                                .   Rotate the cap about ¼ turn clockwise as far
                                                                    as stop.
                                                 176TI002 KN

.     Rotate cap about ¼ turn counterclockwise and

                                                                                                                    176TI004 KN
      remove.

                                                                .   Fold down the clip.

                                                                The tank cap is properly closed when the clip’s lug
                                                                engages the recess (see arrow above right).

                                                                                              TI_31_2001_03_01_01.fm

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Technical Information 31.2001                                                                                     Page 3

3.      Tank Housing                                             3.1.2 Function

The previous tank housings 1125 350 0813 and
1125 350 0815 will be replaced by the new versions
1125 350 0818 and 1125 350 0819. The filler
openings of the new tank housings have been                       1                        4
modified to take the clip cap (see 2). In addition, a
new tank vent is installed.
The clip cap will be supplied together with the new               3
tank housing for a period of about three years. This
means it can also be used for repairs to model 034                2

                                                                                                                        176TI006 KN
and 036 saws.

The contact spring in the tank housing has been
modified to improve its location. Version                        When the pressures at the atmophere side (1) and
1125 442 1601 will be supplied as a replacement in               in the fuel tank (2) are equal, the spring presses the

the future.                                                      check valve (3) against the valve plate (4) and
                                                                 closes the valve.
3.1     Tank vent

The previous tank vent 1121 350 5802 will be
replaced by the new version 0000 350 5800.

3.1.1 Construction of tank vent 0000 350 5800
                                                                  1                        4

                                                                  3
                                          4                       2

                                                                                                                        176TI007 KN


                                                                 When fuel is pumped out of the tank, a vacuum is
                                                                 initially created in the tank. This causes the check
                                           1                     valve to lift off the valve plate and open the valve. Air

                                                                 flows into the fuel tank. The pressures on both sides
                                                                 of the check valve are equalized in this process.

                                                                 The valve closes when both both the tank and
                                                                 atmospheric pressures are equal.

                                           3
                                                   176TI005 KN

.     Perforated sheet/diaphragm (1)
.     Filter atmosphere side (2)
.     Filter tank side (3)
.     Integral protective cap (4)

TI_31_2001_03_01_01.fm
)m~ge 4                                                                       Technical Information 31.2001

4.     Crankcase
The previous crankcases 1125 020 2103 (034 036)         An intake air preheating kit 1125 007 1012 (special
wiill be replaced by the version 1125 020 2120. The     accessory) will be supplied to fit of the modified fan
previous crankcase 1125 020 2115 for the 036 QS         housing.
will be replaced by the version 1125 020 2122.          The kit comes with detailed mounting instructions
The filler openings of the new crankcases have          and information.
been modified to take the clip cap (see 2).
The clip cap will be supplied together with the         6.      Shroud
replacement crankcases for a period of about three      In connection with the modification announced in
years. This means they can also be used for repairs     chapter 5, the new round nameplates are clipped to

to models 034, 036 and 036 QS.                          the fan housings instead of the shrouds.

5.     Fan Housing (round nameplate)                    7.     Clutch (036, 036 QS only)

The fan housings of the renamed models have been        The previous clutch 1125 160 2002 with clutch
modified to accommodate a round nameplate. In           shoes 1128 162 0800 will be replaced by version
future, replacement fan housings for all Series 1125    1125 160 2005 with clutch shoes 1128 162 0806 to

models will be supplied under part number               accept a new protective washer 1128 162 1001.
1125 080 1830. The scope of supply of the fan
housings includes the nameplates of the model           A clutch assembly including protective washer will
concerned (see Summary). The new round
nameplates are clipped to the fan housing. The
                                                        be made available for spare parts purposes to repair
                                                        older machines. The part number for the clutch
company logo previously fitted in this position has     assembly including washer is 1125 160 2051.
been deleted.
                                                        8.      Spare Parts
Parts availability

                                                        Separate illustrated parts lists are available for the
A neutral nameplate is also available (without model
                                                        new chainsaws.
designation – only the STIHL logo) for installing the
new fan housing on machines that already have a         the 03.2001 issues of the microfiche and CD-ROM

nameplate on the shroud.                                include the parts lists for these chainsaws.

9.     Summary
Item     Part Name                                           Previous         New                 Remarks

 1       034, 036
         Tank housing; including items 2 to 5:               1125 350 0813    1125 350 0818       1)
 1       036 QS
         Tank housing; including items 2 to 5:               1125 350 0815    1125 350 0819       1)
 2       Filler cap (034, 036 QS)                            0000 350 0510    0000 350 0525       2)
 2       Filler cap (036)                                    0000 350 0520    0000 350 0525       2)
 3       Tank vent;                                          1121 350 5802    0000 350 5800       2)
         including items 4 and 5:
 4       Valve                                               1110 353 1600    -*-                 2) 3)
 5       Filter                                              1122 358 1800    -*-                 2) 3)

                                                                                        TI_31_2001_03_01_01.fm

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Technical Information 31.2001                                                                       Page 5

Item     Part Name                                         Previous        New               Remarks
 6       034
         Crankcase; including item 7:                      1125 020 2107   ---               4)
 6       034, 036
         Crankcase; including item 7:                      1125 020 2103   1125 020 2120     1)
 6       036 QS
         Crankcase; including item 7:                      1125 020 2115   1125 020 2122     1)
 7       Filler cap                                        ---             0000 350 0526
 8       034, 036, 036 QS
         Fan housing with rewind starter;                  1125 080 2101   1125 080 2105     1)

         including item 9:

 9       Fan housing (034);                                1125 080 1823   1125 080 1830     1)
         including items 10 to 14:
 9       Fan housing (036, 036 QS);                        1125 080 1816   1125 080 1830     1)

         including items 10 to 14:
10       Nameplate MS 360                                  ---             1125 967 1510

11       Nameplate MS 360 C                                ---             1125 967 1511
12       Nameplate (without model designation)             ---             0000 967 1500
13       Company logo                                      0000 967 2035   ---               2)
14       Intake air preheating kit;
                                                           1125 007 1042   1125 007 1012     2)
         including item 15:
15       Cover plate                                       1125 084 8202   1125 084 8203     2)
16       Shroud                                            1125 080 1617   1125 080 1620     2)

17       Nameplate (034)                                   1125 967 1507   ---               2)
18       Nameplate (036)                                   1125 967 1508   ---               2)
19       Nameplate (036 QS)                                1125 967 1509   ---               2)
20       Clutch (036, 036 QS); including item 21:          1125 160 2002   1125 160 2005     1)

21       Clutch shoe                                       1128 162 0800   1128 162 0806     1)

22       Contact spring                                    1125 442 1600   1125 442 1601     5)
23       Clutch assembly; including item 24:               1125 160 2002   1125 160 2051     1)6)
24       Protective washer                                 ---             1128 162 1001

         All other parts as before
Modification to be introduced: in progress

Remarks
1)Previous version of part is no longer available from factory

2)Previous version of part remains available as spare for older older machines
3)New version of part is not available as separate item
4)Previous version of part remains available for older machines (M4 thread)

5)Part remains available for other models
6)Use 1125 160 2051 as a replacement part for 1125 160 2002 when repairing older machines.

Last Technical Information on models 034, 036: 03.2001

© 2001 Andreas Stihl AG & Co.                            Technical Documentation
  Waiblingen                                             D1/MTS                                      7304

TI_31_2001_03_01_01.fm

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