Stihl MS 441 User Manual

STIH)
STIHL MS 441
2006-06

Stihl MS 441 Specifications

General

Displacement	70.7 cc
Weight	6.6 kg
Fuel Capacity	0.78 L
Chain Oil Capacity	0.36 l
Oil Capacity	0.36 l
Oil tank volume	0.36 l
Chain pitch	3/8"

Summary

2. Safety

3.5 Tightening torques

4. Troubleshooting

4.2 Chain drive, chain brake, chain tensioner

Provides troubleshooting for chain wear, chain stopping, and brake engagement issues.

4.3 Chain lubrication

Details troubleshooting steps for no oil, loss of chain oil, or insufficient oil delivery.

4.5 Ignition system

Lists causes and remedies for engine running rough, misfires, or no spark.

4.6 Carburetor

Addresses carburetor flooding, stalling, poor acceleration, and idling issues.

4.7 Engine

Provides troubleshooting for starting issues, low power, and engine overheating.

7. Checking operation of chain brake

7.6 Chain tensioner

8. Engine

8.2 Leakage testing

8.2.1 Preparations

Steps to prepare the engine for leakage testing.

8.2.2 Vacuum test

Method for performing a vacuum test on the crankcase.

8.2.3 Pressure test

Method for performing a pressure test on the crankcase.

8.3 Oil seals

8.5 Cylinder

8.6 Crankshaft

8.6.1 Removal

Detailed instructions for removing the crankshaft.

8.6.2 Installation

Detailed instructions for installing the crankshaft.

8.7 Piston

8.7.1 Removal

Steps for removing the piston from the con-rod.

8.7.2 Installation

8.8 Piston rings

9. Ignition system

9.1 Ignition module

9.3 Testing the ignition module

9.4 Spark plug boot/ ignition lead

9.5 Flywheel

9.6 Short circuit wire

9.8 Troubleshooting chart, ignition system

10. Rewind starter

10.5 Starter rope/grip

10.6 Tensioning the rewind spring

10.7 Rewind spring

11. Anti-vibration system, repair

11.2 Anti-vibration spring, front handle

11.3 Anti-vibration spring, fuel tank

11.4 Stop buffers

11.5 Front handle

12. Actuating levers

12.2 Throttle trigger/throttle trigger interlock

12.3 Throttle trigger/throttle trigger interlock/QuickStop Super

12.3.2 Throttle trigger interlock

13. Chain lubrication

13.3 Oil pump

13.3.1 Repair

13.3.2 Adjustment

14. Fuel system

14.1 Air filter

14.3 Carburetor removal and installation

14.3.1 Leakage testing

14.4 Carburetor repair

14.4.2 Metering diaphragm

14.4.3 Inlet needle

14.4.5 Pump diaphragm

14.4.6 Choke shaft/choke shutter

14.4.7 Throttle shaft/throttle shutter

14.4.8 Accelerator pump

14.4.9 Adjusting screws

14.5 Carburetor adjustment

14.5.1 Basic setting

Steps for performing the basic carburetor setting.

14.5.2 Standard setting

14.6 Throttle cable

14.6.2 Carburetor housing

14.6.3 Intake elbow, removal and installation

14.6.4 Impulse hose

14.7 Tank vent

14.7.1 Check

14.8 Fuel intake

14.8.2 Fuel hoses

14.8.4 Tank housing, removal and installation

15. Heating

15.1 Carburetor heating

Information on the carburetor heating element and its control.

15.2 Troubleshooting chart, carburetor heating element

15.3 Handle heating systems

15.3.1 Troubleshooting

Troubleshooting steps for handle heating systems and generators.

15.4 Heating switch, removal and installation

15.5 Heating element in handle, removal and installation

15.6 Heating element in front handle, removal and installation

15.7 Generator, removal and installation

15.7.1 Troubleshooting chart, handle heating systems and generator

A flowchart for troubleshooting handle heating systems and generators.

15.7.2 Summary of test connections and test values

15.8 Wiring harness

15.8.1 Removal

15.8.2 Installation