Technical Information · issue 20 of 2008
Carburetor
IssueTI 20/2008
Part changes (3)
| Was | Becomes | What the bulletin says |
|---|---|---|
| 4282 121 5801 | 4229 121 5803 | designation C1Q-S68C, the following replacement The previous pump piston 4282 121 5801 will be parts were changed: replaced by the new version (2) 4229 121 5803. |
| 4229 121 5801 | 4229 121 5802 | The previous pump piston 4229 121 5801 was The previous spacer sleeve 4134 122 5000 will be replaced by the new version (2) 4229 121 5802. |
| 4140 122 3600 | 4314 122 3600 | The previous sealing ring 4140 122 3600 was The previous spacer sleeve and the new spacer replaced by the new version (3) 4314 122 3600. |
Full text
Page 1 of 3
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STIH)
Technical Information 20.2008
Blowers STIHL BR 45 C, BG 45, 46, 55, 65, 85 – Series 4229
Shredder vacs STIHL SH 55, 85 – Series 4229
1. Carburetor
In future, the smooth connectors of the carburetor
4229 120 0606 (C1Q-S68B) and 4229 120 0607
(C1Q-S112) will be replaced by barbed connectors.
Additionally, the previous and new carburetors differ
because of engraved carburetor designations – see
1.1 Summary.
The previous and new carburetors are identical in
terms of function and adjustment.
295TI025 KN
Left: Previous carburetor
Right: New carburetor
TI_20_2008_30_01_01.fm englisch / English Page 2 of 3
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Page 2 Technical Information 20.2008
Carburetor 4229 120 0606 – C1Q-S68C / Carburetor 4229 120 0607 – C1Q-S112A
C1Q-S68D
4
3 1
2 3 2
295TI023 KN
1
295TI024 KN
The previous flange 4229 120 2203 will be replaced
With the change to the interim carburetor by the new version (1) 4229 120 2205.
designation C1Q-S68C, the following replacement
The previous pump piston 4282 121 5801 will be
parts were changed:
replaced by the new version (2) 4229 121 5803.
The previous flange 4229 120 2202 was replaced
The previous sealing ring 1132 122 3600 will be
by the new version (1) 4229 120 2204.
replaced by the new version (3) 1129 122 3600.
The previous pump piston 4229 121 5801 was The previous spacer sleeve 4134 122 5000 will be
replaced by the new version (2) 4229 121 5802. replaced by the new version (4) 4229 122 5000.
The previous sealing ring 4140 122 3600 was The previous spacer sleeve and the new spacer
replaced by the new version (3) 4314 122 3600. sleeve are not interchangeable.
With the change to the carburetor designation
C1Q-S68D, the adhesive bond to the fixed jet was
changed in series production. Thus the carburetor
designation will change for the purposes of
differentiation. This change does not have any effect
on the part number, adjustment and spare parts of
the carburetor.
1.1 Summary
Part No. Identification of Identification of Identification of
previous carburetor interim carburetor new carburetor
4229 120 0606 C1Q-S68B C1Q-S68C C1Q-S68D
4229 120 0607 C1Q-S112 --- C1Q-S112A
TI_20_2008_30_01_01.fm Page 3 of 3
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Technical Information 20.2008 Page 3
1.2 Service note . Install new fuel hoses dry or with the aid of press
To ensure there are no leaks in the fuel system: fluid OH 723 – 0781 957 9000.
. Install and remove the fuel hoses, by hand . When using press fluid OH 723, apply press
whenever possible, in order to avoid damage to fluid to the ends of the hose and connectors
the barbed connector – sharp-edged pliers, prior to installation.
screwdrivers, etc., must not be used – nor Notes regarding press fluid OH 723
should fuel hoses be cut open with a knife or
Press fluid OH 723 produces a lubricant film to aid
similar implement.
in assembly. The lubricant evaporates after a short
. Do not reuse fuel hoses after disassembly, time allowing for a tight fit.
always replace them with new hoses – fuel
Never use fuel, oil or grease as a lubricant. Fuel, oil
hoses may be over-extended when removed.
and grease does not evaporate and may allow the
hose to slip from the connector.
Summary
Item Part Name Previous New Rem.
1 Carburetor C1Q-S68B 4229 120 0606 --- 1) 3)
2 Interim carburetor C1Q-S68C; 4229 120 0606 --- 1) 3)
including Items 4 - 6:
3 Carburetor C1Q-S68D --- 4229 120 0606 4)
4 Flange 4229 120 2202 4229 120 2204 1) 4)
5 Pump piston 4229 121 5801 4229 121 5802 1) 4)
6 Sealing ring 4140 122 3600 4314 122 3600 1) 4)
7 Carburetor C1Q-S112 4229 120 0607 --- 1) 3)
8 Carburetor C1Q-S112A; --- 4229 120 0607 4)
including Items 9 - 12:
9 Flange 4229 120 2203 4229 120 2205 1) 4)
10 Pump piston 4282 121 5801 4229 121 5803 1) 4)
11 Sealing ring 1132 122 3600 1129 122 3600 1) 4)
12 Spacer sleeve 4134 122 5000 4229 122 5000 2)
Remarks
1) Previous version of part no longer available from factory
2) Previous version of part remains available for older models
3) Only modified version of part is available from factory
4) New version of part can also be used for older machines
© ANDREAS STIHL AG & Co. KG, 2008 Technical Documentation
D1/MTK-ni
TI_20_2008_30_01_01.fm 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.