Technical Information · issue 30 of 2003

Note for operation; Keep air intake clean; Machine

IssueTI 30/2003

Full text

Page 1 of 2

STIH)

Technical Information

30.2003

Blowers STIHL BR 320, 340, 400, 420 – Series 4203

Contents
1. Note for operation
2. Keep air intake clean
3. Machine may only be operated with correctly fitted blower attachment

1. Note for operation 3. Machine may only be operated with
The engine of the backpack blowers and sprayers is correctly fitted blower attachment
cooled by the air stream drawn into the machine. The blower attachment is specially designed for this

For this purpose, part of the air stream is diverted at machine. Optimum use and an adequately cooled

the fan housing on the engine side and directed over engine can only be ensured if the blower attachment
the cylinder. has been fitted in accordance with the instructions.

The following points must be observed and the The blower tube with straight nozzle may only be

customer instructed accordingly in order to ensure operated with blower tube (1) and nozzle (2).
optimum operation and avoid damage to the
machine.

2. Keep air intake clean
1
The screen on the air intake between the engine 2
and backplate must be checked before switching on

the engine and starting the machine to ensure it is
not clogged with leaves and must be cleaned if
necessary.
373TI002 KN

A clogged screen will reduce the blowing
performance and may prevent the engine being
cooled properly. 1 = Blower tube 4203 708 3404
A protective grating 4203 760 8100 is available as 2 = Nozzle 4203 708 6306
an optional accessory and can be fitted to keep the
air intake clear.

TI_30_2003_01_01_01.fm english / USA
)m~ge 2 Technical Information 30.2003

The blower attachment with bent nozzle must be
operated with both blower tubes (1) and (2). Use of
the nozzle (3) is optional with this blower
attachment.

1
2

373TI003 KN

1 = Blower tube 4203 708 3404
2 = Blower tube 4203 708 3408
3 = Nozzle 4203 708 6300

Last Technical Information on STIHL BR 320, 400: 06.2003
STIHL BR 340, 420: 06.2003

TI_30_2003_01_01_01.fm

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