Technical Information · issue 17 of 2006
Antistatic wire; Stop buffer; Exhaust valve; Crankshaft; Engine pan
IssueTI 17/2006
Part changes (3)
| Was | Becomes | What the bulletin says |
|---|---|---|
| 4282 025 1900 | 4282 025 1901 | The previous valve on the exhaust side 4282 025 1900 is replaced by the new version 4282 025 1901 made of a more durable material. |
| 4282 030 0402 | 4282 030 0404 | Crankshaft The previous crankshaft 4282 030 0402 is replaced by the new version 4282 030 0404. |
| 4282 021 2500 | 4282 021 2501 | Engine pan The previous engine pan 4282 021 2500 is replaced by the new version 4282 021 2501. |
Full text
Page 1 of 3
STIH)
Technical Information 17.2006
Blower STIHL BR 500 Series 4282
Blower STIHL BR 550 Series 4282
Blower STIHL BR 600 Series 4282
Contents
1. Antistatic wire
2. Stop buffer
3. Exhaust valve
4. Crankshaft
5. Engine pan
1. Antistatic wire Service note
452TI073 KN
452TI072 KN
Top: antistatic wire 4282 740 7100 for BR 500 Ensure that both antistatic wire versions protrude by
Bottom:antistatic wire 4282 740 7102 for BR 550, 600 at least a = 1/2" (10 mm) after installation.
Antistatic wire 4282 740 7102 will be used as a
standard item and for replacement in models
BR 550 and BR 600 from now on.
Antistatic wire 4282 740 7100 will continue to be
used as standard and for replacement in the model
BR 500.
TI_17_2006_30_01_01.fm englisch / English USA
)m~ge 2 Technical Information 17.2006
2. Stop buffer
452TI075 KN
a
Shroud 4282 700 2100
The modified shroud can be identified through the
452TI074 KN
diameter a at the bore.
Shroud Diameter a Stop buffer
Left: previous stop buffer 4282 791 5900 Previous: 0.39 in (10.0 mm) 4282 791 5900
Right: new stop buffer 4282 791 5902 New: 0.45 in (11.5 mm) 4282 791 5902
The part number of the shroud 4282 700 2100
The previous stop buffer 4282 791 5900 is replaced remains unchanged and includes the new stop
by the new version 4282 791 5902. buffers.
The new stop buffer 4282 791 5902 can only be
used in combination with the modified shroud.
The modified shroud 4282 700 2100 includes the 3. Exhaust valve
new stop buffers and can be used to upgrade older
machines to the new buffers. The previous valve on the exhaust side
4282 025 1900 is replaced by the new version
4282 025 1901 made of a more durable material.
The new valve 4282 025 1901 can also be used in
older machines and is designed to improve valve
sealing and reduce valve failures caused by carbon
and combustion deposits.
4. Crankshaft
The previous crankshaft 4282 030 0402 is replaced
by the new version 4282 030 0404.
The new crankshaft 4282 030 0404 can also be
used in older machines.
TI_17_2006_30_01_01.fm Page 2 of 3
Technical Information 17.2006 Page 3
5. Engine pan
The previous engine pan 4282 021 2500 is replaced
by the new version 4282 021 2501.
The new engine pan 4282 021 2501 can also be
used in older machines. The new engine pan is
reinforced to increase durability.
Summary
Item Part name Previous New Remarks
1 Antistatic wire for BR 550 4282 740 7100 4282 740 7102 2) 4)
2 Stop buffer 4282 791 5900 4282 791 5902 3)
3 Valve 4282 025 1900 4282 025 1901 1) 2)
4 Crankshaft 4282 030 0402 4282 030 0404 1) 2)
5 Engine pan 4282 021 2500 4282 021 2501 1) 2)
Remarks
1) Previous version of part is no longer available from factory
2) New version of part can also be used for older machines
3) Previous version of part remains available for older machines (can upgrade by using 4282 700 2100)
4) Previous version of part remains available for BR 500
Last Technical Information on the blowers STIHL BR 500, BR 550, BR 600: 08.2005
© ANDREAS STIHL AG & Co. KG, 2006 Technical Documentation
D1/MTK-ru
TI_17_2006_30_01_01.fm Page 3 of 3
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.