Technical Information · issue 26 of 2010
Fan housing, engine housing; "Hand guard" repair kit; Summary
IssueTI 26/2010
Engine family 1140
Part changes (2)
| Was | Becomes | What the bulletin says |
|---|---|---|
| 1140 020 3000 | 1140 020 3001 | 4 Service notes The previous engine housing 1140 020 3000 has been replaced by the version 1140 020 3001. |
| 1140 080 1803 | 1140 080 1805 | 4903TI007 KN The previous fan housing 1140 080 1803 has been replaced by the version 1140 080 1805. |
Full text
Page 1 of 4
STIH)
Technical Information 26.2010
Chain saws STIHL MS 311, MS 391 – Series 1140
Contents
1. Fan housing, engine housing
2. "Hand guard" repair kit
3. Summary
1. Fan housing, engine housing
The previous screw assy. P6 1140 790 6101 at the
fan-side screw connection of the front hand guard
has been replaced by the screw assy. M5
0000 790 6102. In conjunction with this change in 1
the screw assy. an M5 threaded insert has been
inserted in the engine housing and the screw hole in
the fan housing has been reinforced with a bushing.
2
3 4
4903TI006 KN
1 New engine housing with M5 threaded insert
2 New fan housing with bushing
3 Previous screw assy. P6 1140 790 6101
4 New screw assy. M5 0000 790 6102
TI_26_2010_30_01_01.fm englisch / English
)m~ge 2 Technical Information 26.2010
1.1 Engine housing 1.4 Service notes
The previous engine housing 1140 020 3000 has
been replaced by the version 1140 020 3001.
The new engine housing contains an M5 threaded
insert 9795 003 0353 for the screw connection of
the front hand guard. For this reason, the previous
screw assy. P6 1140 790 6101 has been replaced
by the screw assy. M5 0000 790 6102.
1.2 Fan housing
4903TI007 KN
The previous fan housing 1140 080 1803 has been
replaced by the version 1140 080 1805. The new
fan housing has a bushing for the screw connection
of the front hand guard. The new screw assy. M5 0000 790 6102 can only
be combined with a fan housing in which the hole for
1.3 Spare parts the screw connection of the front hand guard has
been reinforced with a bushing (arrow).
The previous engine housing 1140 020 3000 is no
longer available from the factory. The engine
housing kit 1140 020 3050 is available for machines
of the previous version. 2. "Hand guard" repair kit
This kit consists of:
Using the "hand guard" repair kit 1140 007 1005, it
– 1140 020 3001 engine housing is possible to repair a hand guard screw connection
– 0000 790 6102 screw assy. that has broken on the fan side with the threaded
insert M5x10 (9795 003 0353).
– 1140 080 1805 fan housing
The "hand guard repair kit" 1140 007 1005 consists
of:
The previous fan housing 1140 080 1803 and fan
housing with rewind starter 1140 080 2104 are no – 1140 893 5800 drill sleeve
longer available from the factory. The new versions – 9121 347 1000 stud M5x38
of fan housing 1140 080 1805 and fan housing with
rewind starter 1140 080 2105 can also be installed – 9210 260 0700 hexagon nut M5
on older machines. – 0833 121 2517 center drill
– 0833 211 4172 drill bit (7.2 mm)
– 9795 003 0353 threaded insert M5
– 0000 790 6102 screw assy.
The new screw assy. M5 0000 790 6102 can only
be combined with a fan housing in which the hole for
the screw connection of the front hand guard has
been reinforced with a bushing, see b 1. If the fan
housing does not have a bushing, then a new fan
housing must also be procured with "hand guard"
repair kit or the threaded insert M5x10
9795 003 0353.
TI_26_2010_30_01_01.fm Page 2 of 4
Technical Information 26.2010 Page 3
2.1 Service notes
. Remove front hand guard
1
2
4903TI011 KN
4903TI008 KN
. Screw the two hexagon nuts M5
(9210 260 0700) onto the longer threaded
shank of the stud and lock them
. Clamp chain saw vertically using the clamping
rail of the assembly stand . Screw the threaded insert M5x10
(9795 003 0353) onto the stud as far as it will go
. Insert the other end of the stud into the drill
chuck, but do not tighten chuck firmly. The drill
is used only for the purpose of alignment and
not for installing the insert
. Use an 8 mm wrench on the upper hexagon nut
and screw the threaded insert clockwise into the
engine housing as far as it will go
4903TI009 KN
. Position drill sleeve 1140 893 5800
. Drill out the P6 thread and/or fragments using
the center drill 0833 121 2517
4903TI012 KN
. Loosen the locknut and unscrew the stud
. Mount front hand guard
4903TI010 KN
. Remove the drill sleeve and drill out the pilot
hole using the spiral bit 7.2 mm diameter
0833 211 4172
TI_26_2010_30_01_01.fm
)m~ge 4 Technical Information 26.2010
4903TI013 KN
. Screw the front hand guard and the fan housing
to the bushing on the engine housing using
screw assy. M5 (0000 790 6102)
3. Summary
Item Designation Previous New Remarks
1 Engine housing 1140 020 3000 1140 020 3001 1)
2 Engine housing kit; includes Items 1, 3, 6 --- 1140 020 3050 2)
3 Fan housing 1140 080 1803 1140 080 1805 1)
4 Fan housing with rewind starter 1140 080 2104 1140 080 2105 1)
5 Screw assy. P6 1140 790 6101 --- 3)
6 Screw assy. M5 --- 0000 790 6102
7 "Hand guard" repair kit --- 1140 007 1005 2) 4)
Modification introduced from serial number 283859887
Remarks
1) Previous version of part is no longer available from factory
2) New version of part can also be used with older machines
3) Previous version of part remains available for older machines
4) See "Service notes"
© ANDREAS STIHL AG & Co. KG, 2010 Technical Documentation
D1/MTK-bl
TI_26_2010_30_01_01.fm Page 3 of 4
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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.