Technical Information · issue 53 of 1999
TS 400: Tank vent; Flywheel
IssueTI 53/1999
Part changes (1)
| Was | Becomes | What the bulletin says |
|---|---|---|
| 4221 400 1200 | 4223 400 1200 | 1 44 484 005 onwards, the former flywheel 4221 400 1200 is replaced by version 4223 400 1200 (with specific balance changes) to further optimize the oscillating movement. |
Full text
Page 1 of 3
Technical Information
53.1999
STIHL cut-off machines STIHL TS 400 - model 4223
Contents
1. Tank vent (tank housing, filter base)
2. Flywheel
3. Carburetor HS 279 (valve jet)
1. Tank vent (tank housing, filter base)
Machines from machine number 1 44 576 635 Supply of spare parts / service notes
onwards contain a modified tank vent for improved
The tank housing and filter base are also affected by
functioning. As before, the fuel tank is ventilated via
the modification. The part numbers have been
the expansion tank integrated into the tank housing.
changed. The "Tank housing, complete" is only
A hose leading from the new tank vent to a
supplied as a spare part with the new tank vent. The
connector on the filter base permits pressure
new filter base will also be supplied with the tank
equalization on the clean-air side of the intake
housing for a period of approx. 2 years. The former
section.
"Tank housing, left" 4223 351 0510 remains
The advantage of the new tank vent is that it forms available. The new tank vent is only supplied as a
a "closed system": as a result of transferring complete unit when ordered as a spare part.
pressure equalization to the intake side of the The connector remains sealed by a cap when the
machine, dirty ambient air cannot enter into the fuel new filter base is installed in a machine with the
system in situations with negative pressure. former tank vent.
338TI000 KN
338TI016 KN
Former tank vent
Hose routing for new tank vent
TI_53_1999_30_02.fm english / USA
)m~ge 2 Technical Information 53.1999
11
10 16 16
3
9
8 6
4
7
5 13
4 17
2 14 2
15
338TI017 KN
12 1 12 1
Former New
Summary
Item Part name Former part No. New part No. Rem.
1 Tank housing, compl.: incl. Items 2 to 17: 4223 350 0800 4223 350 0804 1)
2 Grommet 4223 353 9200 4223 353 9201 2)
3 Hose 82 mm (3.2 in) --- 4116 358 0700
4 Tank vent; including Items 5 to 11: 4223 350 5800 4223 350 5803 2)
5 Hose 65 mm (2.6 in) 1124 141 8600 --- 2)
6 Bearing needle 3x5 9517 003 5000 --- 2)
7 Vent insert 1120 358 8105 --- 2)
8 Filter 0000 358 1811 -*- 2)3)
9 Valve 4114 353 1600 -*- 2)3)
10 Filter 0000 358 1810 -*- 2)3)
11 Cap 4223 353 2300 -*- 2)3)
12 Tank housing, left; including Item 13: 4223 351 0510 4223 350 0805 2)
13 Tank vent; including Items 14 and 15: --- 4223 350 5805
14 Tank vent; including Item 15: --- 4205 350 5800
15 Vent insert --- 1120 358 8105
16 Filter base; including Item 17: 4223 124 3400 4223 120 3402 1)
17 Cap --- 4223 124 4000
All other parts remain unchanged
Modification to be introduced as from machine No. 1 44 576 635
Remarks
1) Former version of part is no longer available from factory
2) Former version of part remains available
3) New version of part is not available individually as spare part
TI_53_1999_30_02.fm Page 2 of 3
Technical Information 53.1999 Page 3
2. Flywheel
From machine No. 1 44 484 005 onwards, the
former flywheel 4221 400 1200 is replaced by
version 4223 400 1200 (with specific balance
changes) to further optimize the oscillating
movement.
Summary
Item Part name Former part No. New part No. Rem.
Flywheel 4221 400 1200 4223 400 1200 1)
Modification to be introduced as from machine No. 1 44 484 005
Remarks
1) Former version of part remains available for use in TS 460
3. Carburetor HS 279 (valve jet)
A modified version of the standard carburetor
4223 120 0601 (which is also contained in
replacement carburetor 4223 120 0650) is now
used to further optimize emission levels.
The former valve jet 4223 121 5602 (0.73) is
replaced by version 4223 121 5603 (0.75).
The carburetor type designation is consequently
changed from HS 279 C to HS 279 D.
Summary
Item Part name Former part No. New part No. Rem.
Carburetor HS 279 C; 4223 120 0650 --- 1)
Carburetor HS 279 D; --- 4223 120 0650
including the respective
Valve jet 0.73 4223 121 5602 --- 2)
Valve jet 0.75 --- 4223 121 5603
Modification to be introduced continuously
Remarks
1) Only modified version of part is supplied from factory
2) Former version of part is no longer available from factory
Last Technical Information on STIHL TS 400: 04.98
© 1999 Andreas STIHL AG & Co. Technical Documentation
Waiblingen D1/MTK-sc 6791
TI_53_1999_30_02.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.