STIH) Technical Information.009 Cut-off machine STIHL Cutquik TS 410, 40 Series 438 Contents 1. Carburetor. Tank housing, filter cover, screw 3. Fan cover 4. Summary 1. Carburetor To further improve function, the previous carburetor 438 10 0600 is being modified in two stages:. 1. stage Introduction of a new end cover and a new torsion spring.. stage Introduction of a new fixed jet and a new high speed screw The previous part number 438 10 0600 is being retained for the new versions of the carburetor. The new versions are identified by a changed index in the marking on the carburetor (see b 1.1). englisch / English
Page Technical Information.009 1.1 Type and position of designation on carburetor 1. End cover, torsion spring S118 S118 A S118 B XXXX X 1 3 4 1.1.1 Carburetor C1Q-S118A With the introduction of the new end cover and the new torsion spring (see b 1.), the designation of the carburetor 438 10 0600 will be changed from C1Q-S118 to C1Q-S118A. The previous part number 438 10 0600 will be retained. 1.1. Carburetor C1Q-S118B With the introduction of the new fixed jet and the new high speed screw (see b 1.3), the designation of the carburetor 438 10 0600 will be changed from C1Q-S118A to C1Q-S118B. The previous part number 438 10 0600 will be retained. 370TI045 KN Top: Bottom: Previous versions of end cover and torsion spring New versions of end cover and torsion spring Due to an improvement in the manufacturing process, the previous end cover (1) 438 11 0800 is being replaced by the new version () 438 10 0850. The new end cover () differs from the previous version (1) by changes in shape in the connection area of the compensator hose. With the introduction of the new end cover (), the previous torsion spring (3) 438 1 301 will be replaced by the new version (4) 438 1 30. The geometry of the new torsion spring (4) has been adapted to the changes in shape of the new end cover and differs from the previous version by the changed alignment (arrows) at the compensator connector. The new torsion spring (4) 438 1 30 is included with the new end cover () 438 10 0850. 370TI046 KN
Technical Information.009 Page 3 1..1 Service notes / spare parts The previous end cover 438 11 0800 is no longer available. The new end cover 438 10 0850, with new torsion spring 438 1 30 included, can also be used for the previous carburetor with the designation C1Q-S118. The new end cover 438 10 0850 may only be used in combination with the new torsion spring 438 1 30. The previous torsion spring 438 1 301 remains available for carburetors with the previous end cover 438 11 0800. The previous torsion spring 438 1 301 may only be used in combination with the previous end cover 438 11 0800. 1.3 Fixed jet, high speed screw To further improve function, the previous fixed jet 438 11 5600 is replaced by the new version 438 11 5601. The new fixed jet 438 11 5601 differs from the previous version by a larger jet bore. The diameter of the jet bore can be determined from the marking of the fixed jet (see b 1.3.1). With the introduction of the new fixed jet 438 11 5601, the previous high speed screw 438 1 6700 will be replaced by the new version 438 1 6701. 1.3.1 Marking of the fixed jet The diameter of the jet bore can be read on the fixed jet after removal of the end cover, metering diaphragm and the gasket. Identification Version 65 Previous fixed jet 438 11 5600; diameter of the jet bore is 0.65 mm 70 New fixed jet 438 11 5601; diameter of the jet bore is 0.70 mm 1.3. Service notes / spare parts The previous versions of the fixed jet 438 11 5600 and the high speed screw 438 1 6700 are no longer available. For the carburetors C1Q-S118 and C1Q-S118A with the previous versions of the fixed jet and high speed screw, the new "High speed adjusting screw kit 438 10 9800 is available as a spare part. The new "High speed adjusting screw kit" 438 10 9800 contains the new versions of the fixed jet 438 11 5601 and the high speed screw 438 1 6701. The new fixed jet may only be used in combination with the new high speed screw. For the carburetor C1Q-S118B with new versions of the fixed jet and the high speed screw and previous carburetors (C1Q-S118 and C1Q-S118A respectively), in which the new versions of the fixed jet and high speed screw have already been installed, the new fixed jet and the new high speed screw are available individually. 370TI047 KN
Page 4 Technical Information.009 1.3.3 Settings With the introduction of the new versions of the fixed jet 438 11 5601 and the high speed screw 438 1 6701, the basic setting without limiter cap for the high speed screw H also changes. This affects the carburetors with the designation C1Q- S118B and previous carburetors (C1Q-S118 and C1Q-S118A respectively), in which the new versions of the fixed jet and the high speed screw have already been installed..1 Tank housing The following settings apply: Basic setting without limiter cap on the high speed screw H Low speed screw L: 1 turn open High speed screw H: 1.5 turns open Standard setting with limiter cap on the high speed screw H Low speed screw L: 1 turn open High speed screw H: 3/4 turn open (max. no further than stop). Tank housing, filter cover, screw For further improvement of the screw connection between tank housing and filter cover, the following measures have been taken:. New tank housing (see b.1) with improved threaded inserts. New filter cover (see b.) with knurled bushings The previous tank housing 438 350 0813 is being replaced by the new version 438 350 0850. The new tank housing contains modified threaded inserts (arrows) for screwing on the filter cover. The improved filter cover (see b.) and the new screws (see b.) for screw-mounting the new filter cover are enclosed with the new tank housing 438 350 0850..1.1 Spare parts The previous tank housing is no longer available. The new tank housing can also be used for older machines. 370TI048 KN. New screws (see b.) with mounting pegs. Modifications introduced, serial # 170 073 909 If a new tank housing is installed, always fasten the new filter cover with the new screws..1. Service notes If a new tank housing is installed, always fasten the new filter cover with the new screws.
Technical Information.009 Page 5. Filter cover, screw With the introduction of the new tank housing (see b.1), in the previous filter cover (1) 438 140 1000, the previous bushing () 0000 963 0809 is being replaced by a new, knurled 4 5 6 version. The new bushing is permanently integrated in the filter cover (3) and not available as a spare part. The part number of the previous filter cover 438 140 1000 is being retained for the new filter cover. 4 5 With the introduction of the new tank housing (see b.1), the previous screw (4) IS-M5x0-1.9 90 371 100 (4x) for fastening the filter cover to the tank housing is being replaced by the new version (5) IS-M5x0-10.9 0000 951 1109. The 1 3 new version (5) has a lead in (6) and simplifies mounting of the filter cover. Left: Right: Previous versions of the filter cover, bushing and screw without lead in New filter cover, ("C" index or higher) with permanently integrated bushing, new screw with lead in 370TI049 KN..1 Spare parts The previous bushing 0000 963 0809 remains available for previous filter covers. The new, knurled bushing is not available as a spare part. The previous screw IS-M5x0-1.9 90 371 100 remains available for other applications.
Page 6 Technical Information.009 3. Fan cover 1 3 370TI050 KN Left: Right: Previous version of the fan cover and bushing New version of the fan cover with permanently integrated bushing For further improvement of the screwed connection, the previous bushing () 0000 963 0809 (3x) in the previous fan cover (1) 438 080 3100 is being replaced by a new, knurled version. The new bushing is permanently integrated in the fan cover (3) and is not available as a spare part. The part number of the previous fan cover 438 080 3100 is being retained for the new fan cover. 3.1 Spare parts/service notes The previous bushing 0000 963 0809 remains available for previous fan covers. The new, knurled bushing is not available as a spare part.
Technical Information.009 Page 7 4. Summary Item Part Name Previous New Rem. Carburetor, 1st stage 1 Carburetor C1Q-S118; 438 10 0600 - - - 1) including Items 3, 5 Carburetor C1Q-S118A; - - - 438 10 0600 ) including Items 4, 5 3 End cover 438 11 0800 - - - 1) 5) 4 End cover; - - - 438 10 0850 ) 5) including Item 5 5 Torsion spring 438 1 301 438 1 30 4) 5) Carburetor, nd stage 6 Carburetor C1Q-S118A; 438 10 0600 - - - 7) including Items 8, 10 7 Carburetor C1Q-S118B; - - - 438 10 0600 ) including Items 9, 10; other parts as previously, see spare parts list 8 Fixed jet 0.65 438 11 5600 - - - 1) 5) 6) 9 Fixed jet 0.70 - - - 438 11 5601 5) 10 High speed screw 438 1 6700 438 1 6701 1) 5) 6) 11 High speed adjusting screw kit; - - - 438 10 9800 ) 5) including Items 9, 10 Tank housing, filter cover, fan cover 1 Tank housing 438 350 0813 - - - 1) 13 Tank housing; - - - 438 350 0850 ) 5) including Items 14, 15, 17 other parts as previously, see spare parts list 14 Filter cover; 438 140 1000 438 140 1000 1) ) including Item 15 15 Bushing 0000 963 0809 - * - 4) 16 Spline screw IS-M5x0-1.9 90 371 100 - - - 3) 17 Spline screw IS-M5x0-10.9 - - - 0000 951 1109 ) 18 Fan cover; including Item 15 438 080 3100 438 080 3100 1) ) Modification to be introduced : continuously Remarks 1) Previous version of part no longer available from factory ) New version of part can also be used for older machines 3) Previous version of part remains available for other applications 4) Previous version of part remains available for older machines 5) See "Service notes" 6) Replace previous version with Item 11 7) Part remains available from the factory until availability of the new carburetor C1Q-S118B ANDREAS STIHL AG & Co. KG, 009 Technical Documentation D1/MTK-fr