Technical Information · issue 51 of 2008
Carburetor; Control handle
IssueTI 51/2008
Part changes (1)
| Was | Becomes | What the bulletin says |
|---|---|---|
| 9131 378 0950 | 0000 953 0808 | The previous grub screw (3) 9131 378 0950 is being replaced by stud (4) 0000 953 0808. |
Full text
Page 1 of 5
STIH)
Technical Information 51.2008
Blowers STIHL BR 500, 550, 600 – Series 4282
Contents
1. Carburetor
2. Control handle
1. Carburetor
In the future carburetors C1Q-S99 (4282 120 0600), The new carburetors can also be used in older
C1Q-S100 (4282 120 0601) and C1Q-S101 machines. The function and adjustment of the old
(4282 120 0602) will be replaced by new and new carburetors are identical.
carburetors C1Q-S99A (4282 120 0603), C1Q-
S100A (4282 120 0604) and C1Q-S101A
(4282 120 0605).
The new carburetors differ from previous
carburetors through a barbed connector as well as
modified components at the choke shaft and throttle
shaft. In addition, the cylinder bore of the
accelerator pump is closed by a cap for improved
sealing against dirt.
Part numbers
Identification of Part No. Identification of Part No.
previous carburetor previous carburetor new carburetor new carburetor
C1Q-S99 4282 120 0600 C1Q-S99A 4282 120 0603
C1Q-S100 4282 120 0601 C1Q-S100A 4282 120 0604
C1Q-S101 4282 120 0602 C1Q-S101A 4282 120 0605
TI_51_2008_30_01_01.fm englisch / English
)m~ge 2 Technical Information 51.2008
1.1 Service note 1.2 Spring, choke shaft
To ensure there are no leaks in the fuel system:
. Install and remove the fuel hoses, by hand 1
whenever possible, in order to avoid damage to
the barbed connector – sharp-edged pliers,
screwdrivers, etc., must not be used – nor
should fuel hoses be cut open with a knife or
similar implement.
. Do not reuse fuel hoses after disassembly, 2
always replace them with new hoses – fuel
452TI106 KN
hoses may be over-extended when removed.
. Install new fuel hoses dry or with the aid of press
fluid OH 723 – 0781 957 9000. Other press Due to geometric changes, the previous spring (1)
fluids are not permitted and may lead to fuel 4282 122 3000 is being replaced in new carburetors
hose damage. by version (2) 4282 122 3002.
. When using press fluid OH 723, apply press The previous spring (1) 4282 122 3000 remains
fluid to the ends of the hose and connectors available for previous carburetors. The new spring
prior to installation. 4282 122 3002 (2) can only be installed in new
Notes regarding press fluid OH 723 carburetors.
Press fluid OH 723 produces a lubricant film to aid
in assembly. The lubricant evaporates after a short
time allowing for a tight fit.
Never use fuel, oil or grease as a lubricant. Fuel, oil
and grease does not evaporate and may allow the
hose to slip from the connector.
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Technical Information 51.2008 Page 3
1.3 Pump piston kit, accelerator pump 1.4 Throttle shaft
1.4.1 Throttle shaft, left side
1
2 2 3 4
452TI107KN
3
4
452TI108 KN
The previous individual parts of the accelerator
pump (spring (1), sealing ring (2) and pump
piston (3)) are no longer available as spare parts The previous spring (1) 4180 122 3000 will be
and will be replaced by the corresponding pump replaced in new carburetors by version (2)
piston kit: 4180 122 3004. The new spring can also be used
with older machines.
Carburetor Pump piston kit
C1Q-S99A 4282 120 9700 For improved sealing, the throttle shaft will be
C1Q-S100A 1137 120 9704 installed with new parts washer (3) 4180 121 8601
and sealing ring (4) 4180 122 3601.
C1Q-S101A 1137 120 9704
For improved sealing against dirt, the cylinder 1.4.2 Throttle shaft, right side
bore (a) of the accelerator pump is closed with a
cap (4).
The pump piston kit can also be used with older
machines. 7
5 6 8
452TI110 KN
For improved sealing, the throttle shaft will be
installed with new parts sealing ring (5)
4238 122 3600 and ring (6) 4238 121 9400.
The previous spacer sleeve (7) 4134 122 5000 will
be replaced in new carburetors by version (8)
4282 122 5000.
The previous spacer sleeve (7) 4134 122 5000
remains available for previous carburetors.
The new spacer sleever (8) 4282 122 5000 can only
be installed in new carburetors.
TI_51_2008_30_01_01.fm
)m~ge 4 Technical Information 51.2008
1.5 Summary
Item Part Name Previous New Rem.
1 Carburetor C1Q-S99; 4282 120 0600 --- 1)
including Items 9 - 11, 14, 17, 20:
2 Carburetor C1Q-S99A; --- 4282 120 0603 4)
including Items 7, 9 - 11, 13 - 20:
3 Carburetor C1Q-S100; 4282 120 0601 1)
including Items 9, 10, 12, 14, 17, 20:
4 Carburetor C1Q-S100A; --- 4282 120 0604 4)
including Items 8 - 10, 12 - 20:
5 Carburetor C1Q-S101; 4282 120 0602 --- 1)
including Items 9, 10, 12, 14, 17, 20:
6 Carburetor C1Q-S101A; --- 4282 120 0605 4)
including Items 8 - 10, 12 - 20:
7 Pump piston kit for carburetor C1Q-S99A; --- 4282 120 9700 4)
including Items 9 - 11, 13:
8 Pump piston kit for carburetor C1Q-S100A and
carburetor C1Q-S101A; --- 1137 120 9704 4)
including Items 9, 10, 12, 13:
9 Spring 4180 122 3303 -*- 3) 5)
10 Sealing ring 4180 122 3600 -*- 3) 5)
11 Pump piston 4282 121 5800 -*- 1) 5)
12 Pump piston 4282 121 5801 -*- 1) 5)
13 Cap --- -*- 5)
14 Spring 4180 122 3000 4180 122 3004 1) 4)
15 Sealing ring --- 4238 122 3600
16 Ring --- 4238 121 9400
17 Spacer sleeve 4134 122 5000 4282 122 5000 2) 3)
18 Sealing ring --- 4180 122 3601
19 Washer --- 4180 121 8601
20 Spring 4282 122 3000 4282 122 3002 2)
Remarks
1) Previous version of part no longer available from factory
2) Previous version of part remains available for older models
3) Previous version of part remains available for other models
4) New version of part can also be used for older machines
5) New version of part is not available as separate item
TI_51_2008_30_01_01.fm Page 3 of 5
Technical Information 51.2008 Page 5
2. Control handle
The previous individual parts of the control handle
(throttle trigger (1) and lever (2)) are no longer
available as spare parts and are being replaced by 1
throttle trigger 4282 180 1500.
The previous grub screw (3) 9131 378 0950 is
being replaced by stud (4) 0000 953 0808. The stud 4
is contained in the throttle trigger 4282 180 1500. 2
452TI109 KN
The new throttle trigger 4282 180 1500 can also be
used with older machines. 3
Summary
Item Part Name Previous New Rem.
1 Throttle trigger; --- 4282 180 1500 2)
including Items 2, 3, 5:
2 Throttle trigger 4282 182 1000 -*- 1) 3)
3 Lever 4282 182 2800 -*- 1) 3)
4 Grub screw 9131 378 0950 --- 1)
5 Stud --- 0000 953 0808
Remarks
1) Previous version of part no longer available from factory
2) New version of part can also be used for older machines
3) New version of part is not available as separate item
© ANDREAS STIHL AG & Co. KG, 2008 Technical Documentation
D1/MTK-ni
TI_51_2008_30_01_01.fm Page 4 of 5
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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.