Technical Information · issue 46 of 2001
Increased Blowing Performance; Throttle Cable Reta
Model BR 320, 320 L, 340, 340 L, 400, 420, 420 C Blowers – Series 4203
IssueTI 46/2001
Part changes (5)
| Was | Becomes | What the bulletin says |
|---|---|---|
| 4203 182 2101 | 4203 180 2150 | Top: Previous version The previous throttle cable retainer 4203 182 2101 Bottom: New version has been replaced by throttle cable retainer kit 4203 180 2150, which can also be used on existing machines. |
| 4203 790 1302 | 4203 790 1304 | 1 Control Handle for SR 340, 420 Sprayers The previous control handle 4203 790 1302 (top) on model SR 340, 420 sprayers has been replaced by control handle 4203 790 1304 (bottom). |
| 4203 790 1302 | 4203 790 1306 | 2 Control Handle for BR 340, 420 Blowers with Catalytic Converter The previous control handle 4203 790 1302 (top) on model BR 340, 420 blowers has been replaced by control handle 4203 790 1306 (bottom). |
| 4203 790 1303 | 4203 790 1307 | 3 Control Handle for BR 420 C Blowers with Catalytic Converter The previous control handle 4203 790 1303 (top) for catalyzer machines has been replaced by control handle 4203 790 1307 (bottom). |
| 5910 890 4600 | 5910 890 4601 | The shape of the nipple has been modified to The previous removing tool 5910 890 4600 has optimize the function of throttle cable been replaced by removing tool 5910 890 4601. |
Full text
Page 1 of 8
Technical Information
46.2001
Model BR 320, 320 L, 340, 340 L, 400, 420, 420 C Blowers – Series 4203
Model SR 320, 340, 400, 420 Sprayers – Series 4203
Contents
1. Increased Blowing Performance
2. Throttle Cable Retainer
3. Control Handle
4. Throttle Cable
5. Removing Tool for Crankshaft
1. Increased Blowing Performance A new BR/SR conversion kit (4203 007 1030) is
available for blowers with the larger diameter blower
tube assembly. Apart from the parts of the previous
conversion kit, the new kit includes a pleated hose
for the small blower tube diameter and a spacer for
the control handle. The new conversion kit can also
be used with older machines.
2. Throttle Cable Retainer
372TI001 KN
M5x16 M5x20
Left: Previous version
372TI000 KN
Right: New version
Top: Previous version The previous throttle cable retainer 4203 182 2101
Bottom: New version has been replaced by throttle cable retainer kit
4203 180 2150, which can also be used on existing
machines.
Blowing performance has been enhanced by
enlarging the diameter of the blower tube assembly
and modifying the nozzle. The control handles have
been adapted accordingly.
The larger diameter of the blower tube assembly
helps reduce air flow resistance. This, in turn, results
in a higher air throughput without any change in
engine power.
TI_46_2001_01_01_01.fm englisch / english
)m~ge 2 Technical Information 46.2001
3. Control Handle
3.1 Control Handle for
SR 340, 420 Sprayers
The previous control handle 4203 790 1302 (top) on
model SR 340, 420 sprayers has been replaced by
control handle 4203 790 1304 (bottom).
22 23
19
30
fo 26
33
32
22 24
20 30
33
372TI002 KN
TI_46_2001_01_01_01.fm Page 2 of 8
Technical Information 46.2001 Page 3
3.2 Control Handle for BR 340, 420
Blowers with Catalytic Converter
The previous control handle 4203 790 1302 (top) on
model BR 340, 420 blowers has been replaced by
control handle 4203 790 1306 (bottom).
22 23
25
29
19
30
fo 33
32
22 24
21 30
33
372TI003 KN
TI_46_2001_01_01_01.fm
)m~ge 4 Technical Information 46.2001
3.3 Control Handle for BR 420 C
Blowers with Catalytic Converter
The previous control handle 4203 790 1303 (top) for
catalyzer machines has been replaced by control
handle 4203 790 1307 (bottom).
38 39
41
36 45
fo 48
47
38 40
37 45
48
372TI004 KN
TI_46_2001_01_01_01.fm Page 3 of 8
Technical Information 46.2001 Page 5
4. Throttle Cable 5. Removing Tool for Crankshaft
372TI005 KN
372TI006 KN
Left: Previous version Left: Previous version
Right: New version Right: New version
The shape of the nipple has been modified to The previous removing tool 5910 890 4600 has
optimize the function of throttle cable been replaced by removing tool 5910 890 4601.
4203 180 1104. Additional holes in the flange enable the crankshaft
to be removed from both halves of the crankcase.
A drilling template is provided at the back of this TI
for updating existing removing tools.
TI_46_2001_01_01_01.fm
)m~ge 6 Technical Information 46.2001
Summary
Item Part Name Previous New Remarks
Increased blowing performance
1 Pleated hose 4203 701 6102 --- 1)
2 Pleated hose --- 4203 701 6101 5)
3 Blower tube 4203 708 3400 --- 1)
4 Blower tube 4203 708 3402 --- 1)
5 Blower tube --- 4203 708 3404 5)
6 Nozzle 4203 708 6300 --- 1)
7 Nozzle --- 4203 708 6306 5)
8 Conversion kit BR-SR; --- 4203 007 1030 5)
including items 1, 9
9 Spacer --- 4203 791 9100 5)
10 Throttle cable retainer kit; --- 4203 180 2150 5)
including items 13, 15:
11 Retainer 4203 182 2101 --- 2)
12 Washer 9291 021 0121
--- 1)
13 Washer --- 9307 021 0120 4)
14 Screw 9022 341 0980 --- 1)
15 Screw --- 9022 371 1020 4)
Control Handles
16 Control Handle 4203 790 1302 --- 2)
17 Control Handle; --- 4203 790 1304 5)
including items 20, 22 to 25, 27, 29 to
33:
18 Control Handle; --- 4203 790 1306 5)
including items 21 to 25,
28 to 33:
19 Handle molding, inner, Ø 66.6 mm 4203 790 1102 --- 1)
20 Handle molding, inner, Ø 66,6 mm; --- 4203 790 1103 5)
including items 22 to 25:
21 Handle molding, inner, Ø 80 mm; --- 4203 790 1104 5)
including items 22 to 25:
22 Locking lever 4203 182 0801 4203 182 2900 1)
23 Washer 9291 021 3865 --- 1)
24 Washer --- 9291 021 3863 5)
25 Washer 9291 021 3864 --- 1)
26 Handle molding, outer, Ø 66,6 mm 4203 791 0804 --- 1)
27 Handle molding, outer, Ø 66,6 mm --- 4203 791 0808 5)
28 Handle molding, outer, Ø 80 mm --- 4203 791 0810 5)
29 Throttle trigger 4203 182 1000 4203 182 1002 1)
30 Slide 4203 121 2500 4203 430 0101 1)
31 Throttle cable 4203 180 1111 4203 180 1104 1)
32 Wire 4203 440 1901 --- 1)
TI_46_2001_01_01_01.fm Page 4 of 8
Technical Information 46.2001 Page 7
Item Part Name Previous New Remarks
33 Screw 9104 003 0711 9074 478 3075 2)
34 Control Handle BR 420 C 4203 790 1303 --- 2)
35 Control Handle BR 420 C; --- 4203 790 1307 5)
including items 37 to 47:
36 Handle molding, inner, Ø 66.6 mm 4203 790 1101 --- 1)
37 Handle molding, inner, Ø 80 mm; --- 4203 790 1104 5)
including items 38 to 41:
38 Locking lever 4203 182 0801 4203 182 2900 1)
39 Washer 9291 021 3865 --- 1)
40 Washer --- 9291 021 3863 5)
41 Washer 9291 021 3864 --- 1)
42 Handle molding, outer, Ø 66.6 mm 4203 791 0805 --- 1)
43 Handle molding, outer, Ø 80 mm --- 4203 791 0810 5)
44 Throttle cable 4203 182 1001 4203 182 1003 1)
45 Slide 4203 430 0100 4203 430 0102 1)
46 Wire 4203 440 1901 --- 1)
47 Screw
9104 003 0711 9074 478 3075 2)
Removing tool
48 Removing tool 5910 890 4600 --- 2)
49 Removing tool; --- 5910 890 4601 5)
including items 50 to 54:
50 Flange --- 5910 893 5801 4)
51 Screw --- 9022 341 1190 5)
52 Sleeve --- 1123 851 8300 5)
53 Washer --- 9307 021 0120 5)
54 Nut --- 9210 260 0700 5)
Remarks
1) Previous version of part remains available as spare
2) Previous version of part is no longer available from factory
3) Only new version of part is available from factory
4) Part is not available as separate item
5) Part is new in inventory
TI_46_2001_01_01_01.fm
)m~ge 8 Technical Information 46.2001
68,4 mm
34,2 mm
19,8 mm
59,3 mm
ø 5,5 mm
372TI007 KN
Last Technical Information on model BR/SR: 19.2001
© 2001 Andreas Stihl AG & Co. Technical Documentation
Waiblingen D1/MTK-tr 7491
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