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Technical Information · issue 16 of 2004

Pentagonal nylon line; Symbols for mowing lines

IssueTI 16/2004

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TI 16/2004 page 1
STIH)

Technical Information                                                             16.2004

  New nylon line for STIHL trimmer heads

  Contents
  1. Nylon line with pentagonal shaped cross-section
  2. Nylon line with X-shaped cross-section
  3. Symbols for nylon lines

  1.     Nylon line with pentagonal
         shaped cross-section                          Due to demands by a number of markets, nylon line
                                                       with a pentagonal cross-section has been made
                                                       available. This is in addition to the previous range of
                                                       round, square and X lines.

                                                       1.1     Advantages and principle of operation
                                                       The advantages and principle of operation
                                                       described for square line in section 1 of Technical
                                                       Information 13.2003 can also be applied in modified
                                                       form for the new pentagon line, when the features
                                                       described in the following sections are also taken
  Cross-sections of STIHL nylon line                   into account.
  Top left: Round line
  Top right: Round "quiet" line
  Bottom left: Square line
  Bottom center: “X“ line
  Bottom right: New pentagonal line

  TI_16_2004_30_01_01.fm                                                             englisch / English USA
)m~ge 2                                                                      Technical Information 16.2004

1.2      Colors, dimensions and symbol                  1.3      Use

                                                        1.3.1    Modified trimmer heads
                                                        The new pentagonal lines can be used in all those
                                                        STIHL heads which were modified in conjunction
                                                        with the introduction of square lines. Details
                                                        concerning the modifications in the mowing heads
                                                        are described in sections 2 and 3 of Technical
                                                        Information 13.2003.
                                                        The pentagonal lines can be used in the following
                                                        heads:
                                                        –     STIHL TrimCut™ 30-2, TrimCut™ 40-2 and
                                                              TrimCut™ 50-2
The dimensions and colors of the new pentagonal
line are the same as those of the comparable round      –     STIHL AUTOCUT® 25-2, AUTOCUT® 30-2,
versions.                                                     AUTOCUT® 40-2 and 40-4
A circle (2) enclosing the outermost points on the
perimeter of the pentagonal line (1) yields the
nominal size of this type of line. This nominal size,
in turn, corresponds to the diameter of a round         1.3.2    Unchanged trimmer heads
STIHL nylon line.
                                                        The pentagonal lines can also be used in cut form
A new symbol has been introduced to identify the        (short line lengths) in the following trimmer heads:
nominal size of the new pentagonal line:
                                                        –     STIHL PolyCut™ 10-3, 20-3 and 40-3
                                                              (after removal of the blades in each case)
                                                        –     STIHL Fixed line head,
                                                              FixCut™ 5-2 and FixCut™ 25-2
The sectional area of the pentagonal line is slightly
smaller than that of a round line with the same
nominal size.                                           The use of only round nylon line is recommended
                                                        for use in the STIHL AUTOCUT® trimmer heads
                                                        unless the spool has been upgraded (refer to TI
                                                        13.2003).
1.2.1    Correlation of dimensions and colors
                                                        The automatic systems of the STIHL SuperCut™
Nominal size               Color of nylon line          trimmer heads are designed exclusively for the use
[inches]                                                of round nylon line.
0.095                      orange
0.105                      red
0.120                      yellow
0.130                      black

The complete range of pentagonal lines is listed in
section 1.4 "New nylon lines".

                                                                                        TI_16_2004_30_01_01.fm

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Technical Information 16.2004                                                                           Page 3

1.4     New nylon lines

Item     Part name                                Part No.                                      Remarks

           0.095 in, orange
 1       Pentagon line, 1/2 lb                    0000 930 3310
 2       Pentagon line, 1.0 lb                    0000 930 3311
 3       Pentagon line, 3 lb                      0000 930 3331
 4       Pentagon line, 5 lb                      0000 930 3332

           0.105 in, red
 5       Pentagon line, 1/2 lb                    0000 930 3329
 6       Pentagon line, 1 lb                      0000 930 3312
 7       Pentagon line, 3 lb                      0000 930 3303
 8       Pentagon line, 5 lb                      0000 930 3330

           0.120 in, yellow
 9       Pentagon line, 50 count pre-cut, 8 in    0000 930 3318
10       Pentagon line, 100 count pre-cut, 8 in   0000 930 3319
11       Pentagon line, 500 count pre-cut, 8 in   0000 930 3320

           0.130 in, black
12       Pentagon line, 1/2 lb                    0000 930 3326
13       Pentagon line, 1 lb                      0000 930 3333
14       Pentagon line, 3 lb                      0000 930 3327
15       Pentagon line, 5 lb                      0000 930 3328

2.     Nylon line with X-shaped
       cross-section
                                                        2.1    Advantages and principle of operation
                                                        The advantages and principle of operation
                                                        described for square lines in section 1 of
                                                        Technical Information 13.2003 can also be
                                                        applied in modified form for the new
                                                        X-shaped line, when the features described
                                                        in the following sections are also taken into
                                                        account.

A new line with an X-shaped cross-section
has been added to the range of STIHL
nylon lines.

TI_16_2004_30_01_01.fm
)m~ge 4                                                                       Technical Information 16.2004

2.2      Colors, dimensions and symbol
                                                          A new symbol has been introduced to identify
                                                          the nominal size of the X-shaped line:

                                                          The sectional area of an X-shaped line is larger than
                                                          that of a round line with the same nominal size.
                                                          The complete range of X-shaped lines is listed in
                                                          section 2.3 "New X-shaped lines".

The nominal size of the X-shaped line corresponds
to the edge length (a) of the X-section.
The new line is uniformly neon-green,
regardless of the diameter.
The new line consequently differs in this respect
from the dark-green square version.

2.3      New X-shaped lines

Item      Part name                                 Part No.                                       Remarks

             0.095 in, neon-green
 1        X-shaped line, 1 lb                       0000 930 3400
 2        X-shaped line, 3 lb                       0000 930 3401
 3        X-shaped line, 5 lb                       0000 930 3402

             0.105 in, neon-green
 4        X-shaped line, 1 lb                       0000 930 3403
 5        X-shaped line, 3 lb                       0000 930 3404
 6        X-shaped line, 5 lb                       0000 930 3405

                                                                                         TI_16_2004_30_01_01.fm

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TI 16/2004 page 3
Technical Information 16.2004                                                                   Page 5

3.     Symbols for nylon lines
The number of symbols for nylon line featured in     Symbol       Description
STIHL publications has increased as the range of
                                                                  Round line 1)
STIHL nylon lines is constantly enlarged to
include lines of different cross-section. All the
symbols in use at present are summarized in the
following table.                                                  Round "quiet" line

The symbols are shown in color in multi-color
publications. In such cases, the color of the                     Square line 2)
symbol corresponds to the color of the nylon line.

                                                                  Pentagonal line

                                                                  X-shaped line

                                                     1) This symbol is also used instead of the version
                                                        Ø = diameter according to DIN (German
                                                        industrial standards).
                                                     2) This symbol is used instead of the version
                                                           as the symbol with diagonal line may be
                                                        confused with the Ø symbol when miniaturized.

Last Technical Information on STIHL cutting tools:                         13.2003
                                                                           04.2004*
* Not published in all markets.

© ANDREAS STIHL AG & Co. KG, 2004                    Technical Documentation
                                                     D1/MTK-na

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