STIH)
STIHL MS 441 2006-06
Downloaded from www.Manualslib.com manuals search engine
Contents
1. Introduction 3 8. Engine 37 11. Anti-vibration system,
repair 78
8.1 Muffler / spark
2. Safety 4 arresting screen 37 11.1 Annular buffers 78
8.2 Leakage testing 39 11.2 Anti-vibration spring,
8.2.1 Preparations 40 front handle 79
3. Specifications 5 8.2.2 Vacuum test 41 11.3 Anti-vibration spring,
8.2.3 Pressure test 41 fuel tank 79
3.1 Engine 5 8.3 Oil seals 42 11.3.1 Anti-vibration spring,
3.2 Fuel system 5 8.4 Shroud, removal oil tank 80
3.3 Ignition system 5 and installation 44 11.4 Stop buffers 80
3.4 Chain lubrication 5 8.5 Cylinder 45 11.5 Front handle 81
3.5 Tightening torques 6 8.6 Crankshaft 48 11.5.1 Front handle with
8.6.1 Removal 48 handle heating 83
8.6.2 Installation 49
4. Troubleshooting 8 8.6.3 Ball bearing /
crankcase 52 12. Actuating levers 84
4.1 Clutch 8 8.7 Piston 54
4.2 Chain drive, chain brake, 8.7.1 Removal 54 12.1 Switch shaft 84
chain tensioner 9 8.7.2 Installation 55 12.1.1 Removal and
4.3 Chain lubrication 11 8.8 Piston rings 56 installation 84
4.4 Rewind starter 12 8.9 Decompression valve 57 12.2 Throttle trigger / throttle
4.5 Ignition system 13 trigger interlock 85
4.6 Carburetor 15 12.3 Throttle trigger /
4.7 Engine 18 9. Ignition system 57 throttle trigger interlock /
QuickStop Super 87
9.1 Ignition module 58 12.3.1 Switch lever 89
5. Saw chain / 9.1.1 Removal and 12.3.2 Throttle trigger
chain guide 19 installation 58 interlock 90
9.2 Ignition timing 60
9.3 Testing the ignition
6. Clutch 19 module 60 13. Chain lubrication 91
9.4 Spark plug boot /
6.1 Clutch drum 21 ignition lead 61 13.1 Pick-up body 91
9.5 Flywheel 63 13.2 Oil suction hose 91
9.6 Short circuit wire 64 13.3 Oil pump 92
7. Checking operation 9.6.1 Testing 64 13.3.1 Repair 93
of chain brake 23 9.6.2 Removal and 13.3.2 Adjustment 94
installation 64 13.4 Valve 94
7.1 Brake band, removal 9.6.3 Ground wire 66 13.5 Oil tank cap 95
and installation 23 9.7 Pre-separator 67
7.2 Brake lever 25 9.8 Troubleshooting chart,
7.3 QuickStop Super ignition system 69
brake lever 27
7.3.1 Adjusting brake cable 30
7.3.2 Brake cable, removal 10. Rewind starter 72
and installation 31
7.4 Cam lever 33 10.1 General 72
7.5 Pins 34 10.2 Removal and
7.6 Chain tensioner 35 installation 72
7.7 Bar mounting studs 37 10.3 Pawls 73
10.4 Rope rotor 73
10.5 Starter rope / grip 74
10.6 Tensioning the rewind
spring 75
10.7 Rewind spring 76
10.8 Starter rope guide
bushing 77
q
© ANDREAS STIHL AG & Co. KG, 2006
MS 441, MS 441 C 1
Downloaded from www.Manualslib.com manuals search engine
Contents
14. Fuel system 95 15. Heating 124
14.1 Air filter 95 15.1 Carburetor heating 124
14.1.1 Baffle 96 15.2 Troubleshooting chart,
14.1.2 Filter base 96 carburetor heating
14.2 Spacer flange 98 element 128
14.3 Carburetor removal 15.3 Handle heating
and installation 99 systems 129
14.3.1 Leakage testing 100 15.3.1 Troubleshooting 129
14.4 Carburetor repair 100 15.4 Heating switch, removal
14.4.1 Air flap 100 and installation 130
14.4.2 Metering diaphragm 101 15.5 Heating element in
14.4.3 Inlet needle 102 handle, removal and
14.4.4 Fixed jet 103 installation 131
14.4.5 Pump diaphragm 104 15.6 Heating element in
14.4.6 Choke shaft / front handle, removal
choke shutter 105 and installation 131
14.4.7 Throttle shaft / 15.7 Generator, removal
throttle shutter 107 and installation 131
14.4.8 Accelerator pump 109 15.7.1 Troubleshooting chart,
14.4.9 Adjusting screws 109 handle heating systems
14.5 Carburetor and generator 133
adjustment 111 15.7.2 Summary of test
14.5.1 Basic setting 111 connections and test
14.5.2 Standard setting 112 values 135
14.6 Throttle cable 113 15.8 Wiring harness 137
14.6.1 Carburetor support 114 15.8.1 Removal 137
14.6.2 Carburetor housing 116 15.8.2 Installation 138
14.6.3 Intake elbow, removal
and installation 119
14.6.4 Impulse hose 119 16. Special tools 141
14.7 Tank vent 120
14.7.1 Check 120
14.7.2 Removal and 17. Servicing
installation 121 accessories 143
14.8 Fuel intake 121
14.8.1 Pick-up body 121
14.8.2 Fuel hoses 122
14.8.3 Fuel filler cap 123
14.8.4 Tank housing, removal
and installation 124
2 MS 441, MS 441 C
Downloaded from www.Manualslib.com manuals search engine
1. Introduction
This service manual contains The special tools mentioned in the
detailed descriptions of all the descriptions are listed in the chapter 1
typical repair and servicing "Special Tools" of this manual. Use 3
procedures for this power tool. the part numbers to identify the
tools in the "STIHL Tools" manual
You should make use of the which lists all the tools currently 2
illustrated parts lists while carrying available from STIHL.
out repair work. They show the
219RA000 TG
installed positions and sequence of Symbols are included in the text and
steps for the individual components pictures for greater clarity. The
and assemblies. meanings are as follows:
Always refer to the latest edition of In the descriptions: Servicing and repairs are made
the relevant parts list to check the considerably easier by mounting the
part numbers of any replacement : = Action to be taken as shown machine on assembly stand (3)
parts. in the illustration 5910 890 3100. For this purpose,
(above the text) secure the clamping rail (2)
A fault on the machine may have 5910 850 1650 to the assembly
several causes. To help locate the – = Action to be taken that is stand with two screws (1) and
fault, consult the chapter on not shown in the illustration washers.
"Troubleshooting" and the "STIHL (above the text)
Service Training System" for all The screws must not protrude,
functional groups. In the illustrations: as they may damage the housings
when clamping the machine,
Refer to the Technical Information A Pointer (short) depending on the model.
bulletins for engineering changes
which have been introduced since aDirection of movement (long)
publication of this service manual.
Technical information bulletins also b 4.2 = Reference to another
supplement the parts list and chapter, i.e. chapter 4.2
service manual until an updated in this example.
edition is issued.
Service manuals and technical
information bulletins are intended
exclusively for the use of properly
equipped repair shops. They must
not be passed to third parties.
MS 441, MS 441 C 3
Downloaded from www.Manualslib.com manuals search engine
2. Safety
All local and specific national safety
regulations as well as the safety
precautions and warnings in the
instruction manual must be
observed if the machine is started
up in the course of repairs or
maintenance work.
219RA001 TG
Gasoline is an extremely flammable
fuel and can be explosive in certain
conditions.
The flange bolts on the chainsaw Suitable gloves must be worn
are guided through the outer holes without fail if parts are heated for
in the clamping rail and secured assembly/disassembly purposes.
with the nuts (arrows).
Improper handling may result in
The sprocket wheel cover, bar and burns or other serious injuries.
chain must be removed first. Pull
the hand guard back against the Do not bring any fire, flame, spark or
front handle for this purpose. other source of heat near the fuel.
All work with fuel must be performed
Always use original STIHL outdoors only. Spilled fuel must be
replacement parts. wiped away immediately.
They can be identified by the
STIHL part number, Test for leakages after all work on
the STIH) logo and the fuel system and engine.
the STIHL parts symbol (
This symbol may appear alone on
small parts.
4 MS 441, MS 441 C
Downloaded from www.Manualslib.com manuals search engine
BUY NOW
Then Instant Download
the Complete Manual
Thank you very much!
Downloaded from www.Manualslib.com manuals search engine
