Technical Information · issue 10 of 2008
Clutch, tension spring; Wrap around handlebar, elbow connector; Hand guard; Summary
IssueTI 10/2008
Engine family 1122
Part changes (5)
| Was | Becomes | What the bulletin says |
|---|---|---|
| 0000 997 0911 | 0000 997 0912 | Clutch, tension spring The previous tension spring 0000 997 0911 is Spare parts/Service note replaced by version 0000 997 0912. |
| 1122 790 3603 | 1122 790 3651 | Wrap around handlebar (unheated) Wrap around handlebar 1122 790 3650 (unheated) The previous wrap around handlebar 1122 790 3603 is replaced by the version Wrap around handlebar 1122 790 3651 1122 790 3611. |
| 1122 791 5500 | 1122 790 3610 | The previous heated wrap around handlebar The previous elbow connector 1122 791 5500 1122 790 3607 is replaced by the version remains available for previous wrap around 1122 790 3610. |
| 1122 791 5500 | 1122 791 5501 | The previous elbow connector 1122 791 5500 is replaced by the version 1122 791 5501. |
| 1122 790 9102 | 1122 790 9101 | The previous hand guard 1122 790 9102 (wrap around handlebar) is replaced by the version 1122 790 9101. |
Full text
Page 1 of 5
STIH)
Technical Information 10.2008
Chain saws STIHL MS 650, MS 660 – Series 1122
Contents
1. Clutch, tension spring
2. Wrap around handlebar, elbow connector
3. Hand guard
4. Summary
1. Clutch, tension spring
The previous tension spring 0000 997 0911 is Spare parts/Service note
replaced by version 0000 997 0912. The new tension spring can only be used with the
new clutch 1122 160 2002 and new clutch shoes
with guide strips 1122 162 0801.
The previous tension spring can only be used with
the previous clutch 1122 160 2005 and clutch shoes
without guide strips 1122 162 0800 (see
l TI 64.2005).
The previous tension spring will continue to be
available for the previous clutch.
Previous and new tension springs cannot be
218TI004 KN
l combined. Tension springs must always be
replaced in sets.
Above: previous tension spring with 5 turns
l = 0.378 in (9.6 mm)
Bottom: new tension spring with 6 turns
l = 0.441 in. (11.2 mm)
TI_10_2008_30_01_01.fm englisch / English USA
)m~ge 2 Technical Information 10.2008
2. Wrap around handlebar, elbow
connector
2.1 Wrap around handlebar
The tube has been extended and the bending radius
reduced on the sprocket cover side of the new
handlebar. The handle hose has also been
shortened in the lower bend area and a new elbow
connector added. a b
218TI006 KN
Left: previous elbow connector 1122 791 5500
a = 3.01 in. (76.5 mm)
Right: new elbow connector 1122 791 5501
b = 1.75 in. (44.5 mm)
2.3 Spare parts/Service note
Only the new wrap around handlebars are available
218TI005 KN
as spare parts. The new elbow connector
1 1122 791 5501 is included with the new wrap
around handlebars.
Left: previous wrap around handlebar
Right: new wrap around handlebar with smaller In the future previous wrap around handlebars will
bending radius, shortended handle hose no longer be available as spare parts. The following
and new elbow connector (1) kits will be:
Part name Part No.
Wrap around handlebar (unheated) Wrap around handlebar 1122 790 3650
(unheated)
The previous wrap around handlebar
1122 790 3603 is replaced by the version Wrap around handlebar 1122 790 3651
1122 790 3611. (heated)
The kits contain the new wrap around handlebar
with new elbow connector 1122 791 5501 and hand
Wrap around handlebar (heated) guard 1122 790 9101.
The previous heated wrap around handlebar The previous elbow connector 1122 791 5500
1122 790 3607 is replaced by the version remains available for previous wrap around
1122 790 3610. handlebars. The new elbow connector
1122 791 5501 cannot be used with previous wrap
2.2 Elbow connector around handlebars.
Because of the change made in the shape of the
wrap around handlebar, the elbow connector must
be adapted to the new contour.
The previous elbow connector 1122 791 5500 is
replaced by the version 1122 791 5501.
TI_10_2008_30_01_01.fm Page 2 of 5
Technical Information 10.2008 Page 3
2.4 Chain sprocket cover 2.6 Set wrap around handlebar
001TI012 KN
218TI007 KN
Machines with wrap around handlebars may only be The previous sets wrap around handlebar
used with the sprocket cover which has an extended 1122 007 1003 (unheated) and 1122 007 1022
lower section that projects further outward. (heated) will remain available as special
accessories for approx. three years. These sets can
2.5 Bolt only be used with the previous hand guard
The previous pan head self-tapping screw IS-P6x19 1122 790 9102.
(9074 478 4435) for fastening the handlebar at
point (a) is replaced by version IS-P6x21.5
(9074 478 4475).
2
1
218TI009 KN
3
1 Pan head self tapping screw IS-P6x21.5
(9074 478 4475)
2 Pan head self tapping screw IS-P6x19
(9074 478 4435)
3 Pan head self tapping screw IS-P6x32.5
(9074 478 4675)
Service note
Pan head self tapping screw IS-P6x21.5
(9074 478 4475) may only be used with new wrap
around handlebars at mounting point (a). The
previous wrap around handlebars must be fastened
to mounting point (a) using the pan head self
tapping screw IS-P6x19 (9074 478 4435).
TI_10_2008_30_01_01.fm
)m~ge 4 Technical Information 10.2008
3. Hand guard
Due to the change of the wrap around handlebar,
the hand guard must be adapted to the new contour.
The previous hand guard 1122 790 9102 (wrap
around handlebar) is replaced by the version
1122 790 9101.
218TI008 KN
Left: previous hand guard 1122 790 9102
Right: new hand guard 1122 790 9101 is angled by
10° and is characterized by a larger radius in
the protection area.
Service note
The new hand guard 1122 790 9101 is used with the
new wrap around handle bars 1122 790 3611 and
1122 790 3610.
The previous hand guard 1122 790 9102 remains
available for the previous wrap around handlebars
1122 790 3603, 1122 790 3607, 1122 790 3608 and
set wrap around handlebar 1122 007 1003 and
1122 007 1022.
TI_10_2008_30_01_01.fm Page 3 of 5
Technical Information 10.2008 Page 5
4. Summary
Item Part name Previous New Remarks
1 Tension spring 0000 997 0911 0000 997 0912 1)
2 Wrap around handlebar (unheated);
including Item 6 1122 790 3603 1122 790 3611 2)
3 Wrap around handlebar (heated)
including Item 6 1122 790 3607 1122 790 3610 2)
4 Wrap around handlebar (unheated);
including Items 6 and 10 --- 1122 790 3650 3)
5 Wrap around handlebar (heated)
including Items 6 and 10 --- 1122 790 3651 3)
6 Elbow connector 1122 791 5500 1122 791 5501 1)
7 Set wrap around handlebar (unheated);
including Item 9 1122 007 1003 --- 4) 1)
8 Set wrap around handlebar (heated) 1122 007 1022 --- 4) 1)
9 Wrap around handlebar (unheated) 1122 790 3608 --- 4)
10 Hand guard 1122 790 9102 1122 790 9101 1)
Modification to be introduced continuously
Remarks
1) Previous version of part remains available for older models
2) Previous version of part is no longer available from factory
3) New version of part is a spare part for older machines
4) Previous version of part is only available from factory while stocks last
© ANDREAS STIHL AG & Co. KG, 2008 Technical Documentation
D1/MTK-bl
TI_10_2008_30_01_01.fm Page 4 of 5
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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.