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Technical Information · issue 14 of 2008

Pole Pruners STIHL HT 70, HT 75; Pole Pruners STIHL HT 100, HT 101, 130, 131; KombiTool Pole Pruner STIHL HT-KM

IssueTI 14/2008

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Page 1 of 2

TI 14/2008 page 1
STIH)

Technical Information                                                              14.2008

  Pole Pruners STIHL HT 70, HT 75                                            – Series 4138
  Pole Pruners STIHL HT 100, HT 101, 130, 131                                – Series 4182
  KombiTool Pole Pruner STIHL HT-KM                                          – Series 4138

  1.      New 1/4" cutting attachment with STIHL DUROMATIC® C guide bar (special
          accessory)



                                                3                                                          689TI154 KN

  A new 8 toooth chain sprocket (1) with 1/4" pitch has   In the future the new RAPIDTM MicroTM Comfort (2)
  been developed for pole pruners. Thus the basis         (13 RMC, Series 3660) and RAPIDTM MicroTM
  was created for new bar and chain combinations          Special (13 RMS, Series 3661) saw chains that
  approved for pole pruners.                              were presented in the Technical Information
                                                          03.2008, can be used for pole pruners, intended for
                                                          the new cutting attachments.

  TI_14_2008_30_01_01.fm                                                              englisch / English USA
)m~ge 2                                                                                 Technical Information 14.2008

The new cutting attachments also include the new                   1.2      Additional information about the new
STIHL DUROMATIC® C guide bar (3) Series 3005,                               STIHL DUROMATIC® C guide bar and the
which was presented as a carving guide bar in the                           new saw chains
Technical Information 26.2005 for chain saws with a                Additional technical data and information, such as
power output of up to 2.3 kW.                                      repair information, sharpening information, etc.,
The new cutting attachments should only be                         may be found in the Technical Information 26.2005
installed by authorized servicing STIHL dealers.                   and 03.2008.

1.1      Advantages                                                1.3      Cutting Attachments
The general advantages of the new STIHL                            For pole pruners, only guide bar lengths of 30 cm
DUROMATIC® C guide bars and the new 1/4" pitch                     (12") are permitted. Together with the two new 1/4"
saw chains are listed in the Technical Information                 saw chains, there are two possibilities for new
26.2005 and 03.2008. In conjunction with the new                   cutting attachments. The drive link gauge of the
eight-tooth chain sprocket, the following advantages               chain and the groove width of the bar are 1.3 mm
for the pole pruner applications are acheived:                     (.050 in).

-     the tapered bar and the small radius of the nose             1.3.1    Cutting attachment with 13 RMC
      of the guide bar make it possible to work in
                                                                   -     8 tooth chain sprocket, part number
      cramped conditions (e. g., between closely
                                                                         4138 640 2000
      grouped branches).
                                                                   -     STIHL DUROMATIC® C guide bar with 30 cm
-     a clean cut and lower tendency for "tearing"
                                                                         (12") length, part number 3005 816 4205
      thanks to the smaller chain pitch.
                                                                   -     Saw chain 1/4" RMC with 64 drive links, part
Another advantage of the new 13 RMS:
                                                                         number 3660 005 0064

                                                                   1.3.2    Cutting attachment with 13 RMS
                                                                   -     8 tooth chain sprocket, part number
                                                                         4138 640 2000
                                                                   -     STIHL DUROMATIC® C guide bar with 30 cm
                                                                         (12") length, part number 3005 816 4205
                                                                   -     Saw chain 1/4" RMS with 64 drive links, part
                                                                         number 3661 005 0064
                                                     689TI142 KN

                                                                   1.4      Service note
The new 1/4" RAPIDTM MicroTM Special was                           Always replace the chain sprocket together with the
developed for use in combination with the STIHL                    two washers 1208 162 8900. For this reason, chain
carving guide bar for work that will involve fine and              sprocket 4138 640 2000 is supplied together with
precise cuts (e. g. tree surgery and in general wood               the washers as a spare part.
carving).
In comparision with the 13 RMC saw chain, the
angled tooth head of the 13 RMS is shorter (arrow),
thus allowing for a smooth cut with less feed effort
when used in combination with the STIHL
DUROMATIC® C guide bar.

© ANDREAS STIHL AG & Co. KG, 2008                                  Technical Documentation
                                                                   D1/MTK-na

                                                                                                   TI_14_2008_30_01_01.fm

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TI 14/2008 page 2

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