← Service bulletins

Technical Information · issue 48 of 2008

New STIHL FixCut 25-2 mowing head; Modified parts; New version of STIHL FixCut 5-2 mowing head; Summary

IssueTI 48/2008

Part changes (1)

WasBecomesWhat the bulletin says
4001 710 2102 4002 710 2158 The previous version of the STIHL FixCutTM 25-2 mowing head (1) with part number 4001 710 2102 was replaced by the new version 4002 710 2158 (2).

Full text

Page 1 of 3

TI 48/2008 page 1
STIH)

Technical Information                                                                   48.2008

  Cutting tools for STIHL trimmers and brushcutters

  Contents
  1. New STIHL FixCutTM 25-2 mowing head
     1.1 Modified parts
  2. New version of STIHL FixCutTM 5-2 mowing head
  3. Summary

  1.     New STIHL FixCutTM 25-2 mowing
         head
                                                                The new FixCutTM 25-2 mowing head can be
                                                                assembled and disassembled on the gearheads of
                                                                brushcutters without using combination wrenches
                     1                    2                     and locking pins.
                                                                Because of the extensive and highly advantageous
                                                                changes in the STIHL FixCutTM 25-2, the mowing
                                                                head was assigned a new part number; the sales
                                                                designation, however, remains the same.
                                                                The new version of the FixCutTM 25-2 mowing head
                                                                is approved for the same brushcutters as the
                                                                preceeding model (see the "FS Cutting Tools"
                                                  681TI178 KN

                                                                catalog and the mowing head information sheet).

  The previous version of the STIHL FixCutTM 25-2
  mowing head (1) with part number 4001 710 2102
  was replaced by the new version 4002 710 2158 (2).

  TI_48_2008_30_01_01.fm                                                                       englisch / English
)m~ge 2                                                                                Technical Information 48.2008

1.1      Modified parts                                             1.1.2    Base

1.1.1    Top                                                                  2 1      3
                1

                     2      3

                                                                                                                      681TI176 KN
                                                     681TI174 KN
                                                                    The ring-shaped beads (2, 3) on the outer and inner
                                                                    edges of the new base (1) have a larger volume
In the center of the new top (1) is the dome (2) in                 than the beads on the previous base did. This
which the hexagon nut (3) for fastening the mowing                  significantly extends the service life of the base.
head is inserted.
                                                                    The new base can also be used in mowing heads of
                                                                    the previous versions.
                                                                    The part numbers are listed in the summary (see 3.).
         1                      4

                                                                    2.       New version of STIHL
                                                                             FixCutTM 5-2 mowing head
                                                      681TI175 KN

The new top (1) has a molded, ring-shaped skirt (4)
                                                                         1
that serves as a shield.
The top part is not available as a spare part; instead,
the complete mowing head is always supplied as a
spare part. The part numbers are listed in the
summary (see 3.).
                                                                                                                      681TI177 KN

                                                                    One part of the model upgrading package carried
                                                                    out for the STIHL FixCutTM 25-2 mowing head was
                                                                    also incorporated in the STIHL FixCutTM 5-2 mowing
                                                                    head (1). The base was modified (see "1.1.2.
                                                                    Base").

                                                                                                  TI_48_2008_30_01_01.fm

Page 2 of 3

TI 48/2008 page 2
Technical Information 48.2008                                                                           Page 3

Despite the limited scope of the changes, the
modified version of the mowing head was assigned
a new part number.
The modified version of the FixCutTM 5-2 mowing
head is approved for the same trimmers as the
preceeding model (see the "FS Cutting Tools"
catalog and the mowing head information sheet).
The part numbers are listed in the summary (see 3.).

3.     Summary
Item    Part Name                                             Previous          New               Rem.
 1      STIHL FixCutTM 25-2 mowing head;                      4001 710 2102     4002 710 2158      1)
        including Items 3 to 5:
 2      STIHL FixCutTM 5-2 mowing head;                       4006 710 2130     4006 710 2118      1)
        including Item 5:
 3      Thrust piece                                          4001 710 9400     ---               2)
 4      Top                                                   -*-               -*-               3)
 5      Base                                                  4001 713 9700     4002 713 9702     4)
        Other parts as before
Modification to be introduced : continuously
Remarks
1) Previous version of part no longer available from factory
2) Previous version of part remains available
3) Part is no longer available individually as a spare part; instead, the complete mowing head is supplied
   from the factory
4) Previous version of part will be supplied from factory only as long as existing stocks last

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

TI_48_2008_30_01_01.fm

Page 3 of 3

TI 48/2008 page 3

Extracted from the manufacturer's 2012 service catalogue. Most of these PDFs embed fonts with a shifted character map, so the text above was recovered rather than copied — read it as a faithful but imperfect transcription, and treat the page image above each block as the authority where the two disagree — the figures exist only there, because they are vector drawings that text extraction cannot keep.

Report a transcription error →