Technical Information · issue 5 of 2001
New Sales Designation for 046; Tank Caps; Tank Hou
Model 046 Chainsaws – Series 1128
IssueTI 5/2001
Engine family 1128
Part changes (4)
| Was | Becomes | What the bulletin says |
|---|---|---|
| 1128 350 0822 | 1128 350 0833 | Tank Housing The previous tank housing 1128 350 0822 has been replaced by the new version 1128 350 0833. |
| 1128 350 5802 | 0000 350 5800 | The previous tank vent 1128 350 5802 will be replaced by the new version 0000 350 5800. |
| 1128 020 2118 | 1128 020 2123 | Crankcase The previous crankcase 1128 020 2118 will be replaced by the version 1128 020 2123. |
| 1128 160 2000 | 1128 160 2001 | When the pressures at the air side (1) and in the fuel The previous clutch 1128 160 2000 with clutch tank (2) are equal, the spring presses the shoes 1128 162 0800 will be replaced by version diaphragm (3) against the valve plate (4) and closes 1128 160 2001 with clutch shoes 1128 162 0806. |
Full text
Page 1 of 4
Technical Information
05.2001
Model 046 Chainsaws – Series 1128
Contents
1. New Sales Designation for 046
2. Tank Caps
3. Tank Housing
4. Crankcase
5. Clutch
6. Spare Parts
7. Summary
1. New Sales Designation 2.1 Benefits
for 046 . Can be opened and closed without tools.
Model 046 will be renamed STIHL MS 460 to bring .
foGrip for fast and simple operation.
it into line with the new naming structure (see . Same type of cap for fuel and oil tanks.
TI 25.2000).
The new nameplate will be attached to the shroud
as before.
2. Tank Caps
2.2 Operation
2.2.1 Opening
176TI001 KN
. Raise the grip until it is upright.
176TI000 KN
The MS 460 is equipped with newly developed caps
for the oil and fuel tanks which are easier to use.
The filler openings in the crankcase and tank
housing have been modified for the new caps.
TI_05_2001_02_01_01.fm english / USA
)m~ge 2 Technical Information 05.2001
3. Tank Housing
The previous tank housing 1128 350 0822 has been
replaced by the new version 1128 350 0833. The
new tank housing’s filler opening has been modified
to take the cap. In addition, a new tank vent is
installed.
For a period of about 3 years the new cap will be
supplied together with the new tank housing. This
means it can also be used for repairs to model 046
176TI002 KN
saws.
3.1 Tank vent
. Rotate cap about ¼ turn counterclockwise and
remove. The previous tank vent 1128 350 5802 will be
replaced by the new version 0000 350 5800.
2.2.2 Closing
3.1.1 Construction of tank vent 0000 350 5800
fo 4
2
176TI003 KN
. Fit the cap – grip upright – marks (see arrows)
must line up.
. Rotate the cap about ¼ turn clockwise as far
as stop.
3
176TI005 KN
. Perforated sheet/diaphragm (1)
. Filter at air side (2)
176TI004 KN
. Filter at tank side (3)
. Integral protective cap (4)
. Fold down the grip.
The tank cap is properly closed when the grips lug
engages the recess (see arrow above right).
TI_05_2001_02_01_01.fm Page 2 of 4
Technical Information 05.2001 Page 3
3.1.2 Function 4. Crankcase
The previous crankcase 1128 020 2118 will be
replaced by the version 1128 020 2123.
1 4 The new crankcase’s filler opening has been
modified to take the cap.
For a period of about 3 years the new cap will be
3 supplied together with the replacement crankcase.
This means it can also be used for repairs to model
2 046 saws.
176TI006 KN
5. Clutch
When the pressures at the air side (1) and in the fuel The previous clutch 1128 160 2000 with clutch
tank (2) are equal, the spring presses the shoes 1128 162 0800 will be replaced by version
diaphragm (3) against the valve plate (4) and closes 1128 160 2001 with clutch shoes 1128 162 0806.
the valve.
6. Spare Parts
A separate illustrated parts list is available for this
new chainsaw.
1 4 fo
The 01.2001 issue of the microfiche and CD-ROM
includes the parts list for this chainsaw.
3
2
176TI007 KN
When fuel is pumped out of the tank, a vacuum is
initially created in the tank. This causes the
diaphragm to lift off the valve plate and open the
valve. Air flows into the fuel tank. The pressures on
both sides of the diaphragm are equalized in this
process.
The valve closes when both pressures are equal.
TI_05_2001_02_01_01.fm
)m~ge 4 Technical Information 05.2001
7. Summary
Item Part Name Previous New Remarks
1 Tank housing; 1128 350 0822 1128 350 0833 1)
including items 2 to 5
2 Filler cap 0000 350 0520 0000 350 0525 2)
3 Tank vent; 1128 350 5802 0000 350 5800 2)
including items 4 and 5
4 Valve 1110 353 1600 -*- 2) 3)
5 Filter 1122 358 1800 -*- 2) 3)
6 Crankcase; 1128 020 2118 1128 020 2123 1)
including item 7
7 Filler cap --- 0000 350 0525
8 Clutch; 1128 160 2000 1128 160 2001 1)
including item 9
9 Clutch shoe 1128 162 0800 1128 162 0806 1)
Modification to be introduced: in progress
Remarks
1) Previous version of part is no longer available from factory
2) Previous version of part remains available for older machines
3) New version of part is not available as separate item
Last Technical Information on model 046: 44.2000
© 2001 Andreas Stihl AG & Co. Technical Documentation
Waiblingen D1/MTK 7151
TI_05_2001_02_01_01.fm Page 3 of 4
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