Technical Information · issue 21 of 1994
Fuel hose; fan housing; standard nozzle
Model BR 320, BR 400 Blowers and SR 320, SR 400 Mistblowers - Series 4203
IssueTI 21/1994
From serial 25 117 539, 28 877 286
Full text
Page 1 of 2
Technical Information
21.94
Model BR 320, BR 400 Blowers and SR 320, SR 400 Mistblowers - Series 4203
Contents
1. Fuel hose
2. Fanwheel
3. Machine number update (standard nozzle 4203 700 6306)
1. Fuel hose
The elbow connector in the fuel tank was deleted
from machine number X 25 117 539 (see TI 17.92).
Grommet (A) 0000 989 0816 has been used for
some time to locate the fuel hose 4203 358 7600.
The original grommet will be replaced by grommet
(B) 4221 353 9201 to further improve reliability.
The new grommet 4221 353 9201 should be installed
as a matter of routine in all machine versions without A B
elbow connector which are brought into STIHL repair
shops for repairs or servicing work of any kind.
Machines already equipped with grommet 0000 989 0816 should be converted to grommet 4221 353 9201.
A detailed instruction sheet is included with the fuel hose.
A warranty application should submitted for reimbursement of the repair expenses incurred.
Gasket 4203 129 0900 or 4114 129 0501 should be replaced every time the carburetor is removed.
Summary
Part Name Original New Key Rem. MOQ
version version H
Fuel hose kit; --- 4203 007 1017 1)
including
items 1 to 4:
Hose 4203 358 7600 -*- 1 2)
Grommet 0000 989 0816 4221 353 9201 2
Gasket --- 4203 129 0900 3
Gasket --- 4114 129 0501 4
Modification to be introduced: in progress Page 2 of 2
Technical Information 21.94 - Page 2
Remarks
1) Part will be supplied as replacement up to end of 1995
2) New version of part not available as separate item until end of 1995
2. Fanwheel
In order to further improve operating efficiency, the
present fanwheel 4203 704 3400 (aluminium die
casting) will be replaced in future by fanwheel
4203 704 3401 (polymer).
1 2
1 = 4203 704 3400
2 = 4203 700 3401
Summary
Part Name Original New Key Rem. MOQ
version version H
Fanwheel; 4203 704 3400 4203 700 3401 1) 1
including
items 1 and 2:
Fanwheel --- -*- 1 2)
Rivet --- 9443 825 7130 2 10
Modification to be introduced: in progress
Remarks
1) Original version of part no longer available from factory
2) New version of part not available as separate item
3. Machine number update (standard nozzle)
The standard nozzle 4203 700 6306 announced in TI 19.93 was installed on SR 320, 400 Mistblowers from
machine number X 28 877 286.
Last Technical Information on Series 4203: 19.93
Waiblingen, May 17, 1994 Andreas Stihl
D1/MTK-al Technical Documentation
... 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.