Technical Information · issue 38 of 2006
Variable-length blower unit; Variable-length, conductive blower unit (special accessory); Winter flap; Fuel hoses; Stop buffer
IssueTI 38/2006
Part changes (2)
| Was | Becomes | What the bulletin says |
|---|---|---|
| 4282 790 1300 | 4282 790 1302 | 2 Control handle Service note The previous control handle 4282 790 1300 is replaced by the new, conductive control handle 4282 790 1302. |
| 4282 791 5900 | 4282 791 5902 | The previous stop buffer 4282 791 5900 is no longer used and is replaced by the new stop buffer 4282 791 5902. |
Full text
Page 1 of 14
STIH)
Technical Information 38.2006
Blower STIHL BR 500 Series 4282
Blower STIHL BR 550 Series 4282
Blower STIHL BR 600 Series 4282
Contents
1. Variable-length blower tube
2. Variable-length, conductive blower tube (special accessory)
3. Winter flap
4. Fuel hoses
5. Stop buffer
1. Variable-length blower tube
Friction due to the air streaming through the blower
tubes can produce electrostatic charges in the
BR 500
blowers. With the new, variable-length blower tube,
the electrostatic charge is discharged via the new,
conductive control handle.
The conductive control handle takes over the
BR 550/600 function of the previous antistatic wire. Under
normal operating conditions, the antistatic wire will
no longer be required in the new, variable-length
452TI077 KN
blower tube.
A variable-length, conductive blower tube with
additional antistatic wire will be available as a
The blower models BR 500, BR 550 and BR 600 will special accessory for use in extreme conditions
be equipped with a variable-length blower tube in (very high dust formation, low humidity).
the future.
The new, variable-length blower tubes may only
A new control handle with conductive handle be used in combination with the new control
moldings will be introduced in conjunction with the handle in order to ensure that electrostatic
variable-length blower tube. charges are discharged.
TI_38_2006_30_01_01.fm englisch / English USA
)m~ge 2 Technical Information 38.2006
1.1 Blower tubes, antistatic wire
Blower tube adjustment – BR 500 Blower tube adjustment – BR 550, BR 600
The blower tube can be set to two different lengths. The blower tube can be set to three different
lengths.
a b
a b c
1 452TI094 KN
452TI096 KN
. Push the blower tube (1) up to mark (a) or (b),
depending on the required length. . Push the blower tube (1) up to mark (a), (b) or
(c), depending on the required length.
452TI095 KN
452TI097 KN
1
. Turn the blower tube (1) in the direction of the
arrow so that it engages in the groove. . Turn the blower tube (1) in the direction of the
arrow so that it engages in the groove.
The blower tube can be made shorter by fitting only
the nozzle (2) without blower tube (1).
452TI101 KN
. Mount nozzle (2) directly on the blower tube.
TI_38_2006_30_01_01.fm Page 2 of 14
Technical Information 38.2006 Page 3
8 5 6
1 3 4
2
7
8
1 3
452TI079 KN
Top:Previous blower tubes
Bottom:New, variable-length blower tubes
Summary
Item Part name Previous New Remarks
1 Blower tube 4282 701 5400 4282 701 5405 1) 3)
2 Blower tube (BR 550, BR 600) 4282 708 3400 4282 701 5401 1) 3)
3 Blower tube silencer (BR 500) 4282 701 9200 4282 701 9205 1) 3)
4 Ring 4282 716 9300 --- 1)
5 Antistatic wire 4282 740 7101 --- 1)
6 Antistatic wire 4282 740 7100 --- 1)
7 Antistatic wire 4282 740 7102 --- 1)
8 Control handle 4282 790 1300 4282 790 1302 2)
Remarks
1) Previous version of part remains available for older machines
2) New version of part can also be used with older machines
3) New version of part can only be used in combination with the control handle 4282 790 1302
TI_38_2006_30_01_01.fm
)m~ge 4 Technical Information 38.2006
Service note
The new, variable-length blower tube may only be
used in combination with the new conductive control
handle 4282 790 1302.
Spare parts
The blower tubes for the previous, non-adjustable
tube assembly remain available as spare parts for
older machines.
The previous blower tubes cannot be combined with
the new adjustable blower tubes.
The antistatic wire for the previous, non-adjustable
tube assembly remains available as a spare part for
older machines. The antistatic wire is no longer
needed in the new, variable-length blower tube.
The nozzles remain unchanged.
TI_38_2006_30_01_01.fm Page 3 of 14
Technical Information 38.2006 Page 5
1.2 Control handle Service note
The previous control handle 4282 790 1300 is
replaced by the new, conductive control handle
4282 790 1302.
The new control handle is needed for the new,
variable-length blower tube to discharge the
electrostatic charges. 1
2
452TI081 KN
The terminal socket (1) of the ground wire is
connected to the pin (2) between the handle
moldings in the new control handle.
The new, variable-length blower tube may only be
452TI080 KN
used in combination with the new control handle
4282 790 1302 and the new throttle cable
Left:Previous control handle 4282 790 1300 4282 180 1102 in order to ensure that electrostatic
Right:New control handle 4282 790 1302 charges are discharged.
The new, conductive control handle can be Spare parts
identified by its changed contour (see arrow).
The previous control handle 4282 790 1300 is no
longer used.
The new control handle 4282 790 1302 can also be
used on older machines without adjustable blower
tubes. The connector tag on the ignition module
must be converted for this purpose on older
machines (see section 1.5).
452TI100 KN
Left:Previous control handle 4282 790 1300
Right:New control handle 4282 790 1302
The new control handle has conductive handle
moldings and a throttle cable with modified ground
wire.
The modified ground wire is conductively connected
to the control handle (see arrow) and ignition
module. Electrostatic charges are discharged via
this connection.
TI_38_2006_30_01_01.fm
)m~ge 6 Technical Information 38.2006
1.3 Handle moldings
The new control handle 4282 790 1302 has a
conductive handle molding, inner 4282 791 0803
and a conductive handle molding, outer
4282 791 0804.
Service note
The new, variable-length blower tube may only be
used in combination with the new control handle
4282 790 1302 with conductive handle moldings in
order to ensure that electrostatic charges are
discharged.
Spare parts
The previous handle molding, inner 4282 791 0800
and the previous handle molding, outer
4282 791 0801 remain available as spare parts for
the previous control handle 4282 790 1300.
TI_38_2006_30_01_01.fm Page 4 of 14
Technical Information 38.2006 Page 7
3 3
4 4
5 5
6
452TI082 KN
Left:Previous control handle 4282 790 1300
Right:New, conductive control handle 4282 790 1302
Summary
Item Part name Previous New Remarks
1 Control handle; 4282 790 1300 ---
including Items 3-5
2 Control handle; --- 4282 790 1302 1)
including Items 3-6
3 Handle molding, inner 4282 791 0800 4282 791 0803 2)
4 Handle molding, outer 4282 791 0801 4282 791 0804 2)
5 Throttle cable 4282 180 1100 4282 180 1102 2)
6 Connector tag 4282 431 2100 4282 431 2101 2)
Remarks
1) New version of part can also be used for older machines and replaces 4282 790 1300
2) Previous version of part remains available for older machines
TI_38_2006_30_01_01.fm
)m~ge 8 Technical Information 38.2006
1.4 Throttle cable 1.5 Connector tag on ignition module
452TI083 KN
452TI099 KN
2
Left:Previous throttle cable 4282 180 1100 Previous:Connector tag 4282 431 2100 x = 4.8 mm
Right:New throttle cable 4282 180 1102 New:Connector tag 4282 431 2101 x = 6.3 mm
The new throttle cable 4282 180 1102 has a The previous connector tag 4282 431 2100 with
terminal socket (1) forming a conductive connection width x = 4.8 mm on the ignition module has been
with the new control handle and the ground replaced by the new connector tag 4282 431 2101
connection on the ignition module. Electrostatic with width x = 6.3 mm.
charges are discharged via this connection.
The width x of the connector tag has been changed
The terminal socket (2) to receive the connector tag to ensure that the wires of the new, conductive
on the ignition module has been enlarged. control handle 4282 790 1302 are not confused
when they are connected to the ignition module.
Service note
The new, variable-length blower tube may only be
operated with the new throttle cable in order to
ensure that electrostatic charges are discharged.
The new throttle cable is included in the new control
handle assembly 4282 790 1302.
Spare parts
The previous throttle cable 4282 180 1100 remains
available as a spare part for older machines.
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Technical Information 38.2006 Page 9
Service note 2. Variable-length, conductive
blower tube (special accessory)
A variable-length blower tube with conductive
blower tubes is available as a special accessory for
1 use in extreme conditions (very high dust formation,
low humidity).
2
The blower tube additionally includes an antistatic
3 wire.
452TI084 KN
Service note
The variable-length, conductive blower tube may
only be used with:
The ground wire (blue) (1) on the new throttle cable
4282 180 1102 must be conductively connected to
the ground terminal (2) of the ignition module.
Under no circumstances should the ground wire
(blue) (1) be connected to the short-circuit
terminal (3).
The connector tag 4282 431 2101 with width
"x" = 6.3 mm must be fitted when using the new
control handle 4282 790 1302.
The new connector tag with width "x" = 6.3 mm
452TI098 KN
must be fitted instead of the previous connector tag
with width x = 4.8 mm when installing the new
control handle 4282 790 1302 in older machines
without variable-length blower tube. . Correctly fitted antistatic wire – "brush" must
protrude beyond the nozzle
For this reason, the new connector tag
4282 431 2101 with width "x" = 6.3 mm is enclosed . New, conductive control handle 4282 790 1302
with the new control handle 4282 790 1302 for . Straight nozzle
converting the previous ignition modules.
Spare parts
The previous connector tag 4282 431 2100 remains
available as a spare part for older machines.
TI_38_2006_30_01_01.fm
)m~ge 10 Technical Information 38.2006
10
6 8
7
5 7 9
452TI085 KN
Summary
Item Part name Previous New Remarks
1 Blower tube kit BR 500; --- 4282 007 1012 1)
including Items 4, 6, 7, 8
2 Blower tube kit BR 550; --- 4282 007 1017 1)
including Items 4, 5, 7, 8
3 Blower tube kit BR 600; --- 4282 007 1013 1)
including Items 4, 5, 7, 9
4 Blower tube --- 4282 701 5402 1)
5 Blower tube (BR 550, 600) --- 4282 701 5403 1)
6 Blower tube silencer (BR 500) --- 4282 701 9202 1)
7 Antistatic wire --- 4282 740 7103 1)
8 Nozzle 4282 708 6300 4282 708 6300
9 Nozzle 4282 708 6310 4282 708 6310
10 Control handle 4282 790 1300 4282 790 1302
Remarks
1) Part may only be used in combination with the new control handle 4282 790 1302
TI_38_2006_30_01_01.fm Page 6 of 14
Technical Information 38.2006 Page 11
3. Winter flap
At temperatures below 10 °C/ 50 °F:
452TI087 KN
. Undo screw (1) in filter cover.
. Turn cover (2) to position r (winter operation).
452TI086 KN
. Retighten screw (1).
The machines will be equipped with a winter flap At temperatures over 20 °C/ 68 °F:
(see arrow) in the future to improve their running . Ensure that the cover is set back to position s
behavior when used in damp, cold weather. (summer operation), otherwise the engine may
The air filter housing and air guide shroud change malfunction due to overheating.
on account of the winter flap.
The winter flap can be retrofitted in existing
Spare parts
machines. Conversion kits are available for this
purpose. The parts for older machines without winter flap will
remain available as spare parts for five years.
After this time, older BR 500 models without winter
Function
flap can be converted with the aid of conversion kit
When the winter flap is open, warm air from the 4282 007 1016.
cylinder chamber is routed through the air filter to Older BR 550 and BR 600 models without winter
the carburetor. This prevents the carburetor from flap can be converted with the aid of conversion kit
icing up. 4282 007 1015.
TI_38_2006_30_01_01.fm
)m~ge 12 Technical Information 38.2006
8 7
1, 2 3 4, 5 6
452TI088 KN
Left:Previous air filter housing and previous air guide shroud
Right:New air filter housing and new air guide shroud
Summary
Item Part name Previous New Remarks
1 Filter housing (BR 500) 4282 140 2800 --- 1)
2 Filter housing (BR 550, 600) 4282 140 2801 --- 1)
3 Air guide shroud 4282 087 3000 --- 1)
4 Filter housing (BR 500) --- 4282 140 2802
5 Filter housing (BR 550, 600) --- 4282 140 2803
6 Air guide shroud --- 4282 087 3001
7 Cover --- 4282 141 2900
8 Screw --- 9074 477 4132
9 Filter housing kit (BR 500); --- 4282 007 1016
including Items 4, 6-8
10 Filter housing kit (BR 550; 600); --- 4282 007 1015
including Items 5-8
Remarks
1) Previous version of part remains available for older machines
TI_38_2006_30_01_01.fm Page 7 of 14
Technical Information 38.2006 Page 13
4. Fuel hoses
Service note
452TI089 KN
452TI091 KN
2
Previous fuel hoses cut from bulk lengths
. The fuel hoses are fitted with the hose covering
(1) pointing towards the connector (2) – use
The previous fuel hoses cut from bulk lengths are STIHL Press Fluid OH 723 (0781 957 9000).
replaced by fuel hoses with a hose covering at the
connector.
452TI092 KN
452TI090 KN
. Fuel hoses (1) must be fully seated onto the
connector (2).
New fuel hose kit 4282 007 1014
Spare parts
The previous fuel hoses cut from bulk lengths are no
longer used on BR 500, BR 550 and BR 600
blowers.
The new fuel hoses with hose covering are only
available in pairs in the fuel hose kit 4282 007 1014
designed for use on BR 500, BR 550 and BR 600
blowers.
TI_38_2006_30_01_01.fm
)m~ge 14 Technical Information 38.2006
5. Stop buffer
452TI093 KN
452TI074 KN
. The colored hose parts (3) must rest in the
groove (see arrow) of the filter housing. Left:Previous stop buffer 4282 791 5900
Right:New stop buffer 4282 791 5902
The previous stop buffer 4282 791 5900 is no longer
used and is replaced by the new stop buffer
4282 791 5902.
The new stop buffer can be used with all shrouds
4282 700 2100. The limited exchangeability
described in TI 17.2006 no longer applies.
Last Technical Information on blowers STIHL BR 500, BR 550, BR 600: 17.2006
© ANDREAS STIHL AG & Co. KG, 2006 Technical Documentation
D1/MTK-ru
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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.