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Stihl MS 720

Stihl MS 720
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STIHL MS 720
Instruction Manual
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Stihl MS 720 Specifications

General IconGeneral
BrandStihl
ModelMS 720
CategoryChainsaw
LanguageEnglish

Summary

Safety Precautions

Clothing and Equipment

Specifies required protective clothing and equipment for safe operation.

Before Starting Work

Pre-operation checks for assembly, condition, and safety features.

Starting the chain saw

Safe procedures for starting the chain saw on a level surface with firm footing.

During operation

Guidelines for safe operation, including maintaining footing, firm grip, and immediate engine shutdown.

Reactive Forces

Dangers of kickback

Description of kickback and its potential to cause fatal cuts.

Reducing the risk of kickback

Methods to minimize kickback, including proper grip, throttle use, and chain maintenance.

Pull-in (A)

Describes the 'pull-in' reactive force where the saw is driven forward toward the log.

Pushback (B)

Describes the 'pushback' reactive force where the saw is driven backward toward the operator.

Working Techniques

Preparations for Felling

Steps for preparing the felling area, ensuring safety for people and property.

Preparations for Felling

Preparing work area at base of tree

Clearing the work area and tree base for secure footing and to prevent damage to the saw chain.

Felling Notch

Instructions on making the felling notch to determine the direction of fall.

Preparing felling notch

Detailed instructions on how to prepare the felling notch correctly.

Felling Notch

Making Felling Notch

Steps for making the felling notch, including horizontal and angled cuts.

Basic Information on Felling Cut

Key information and diagrams related to making the felling cut.

Basic Information on Felling Cut

Felling wedges

Proper use of felling wedges to control tree fall and avoid damage.

Felling Cut with Stabilizing Strap (Normal Tree)

Specific felling cut method for normal trees using a stabilizing strap.

Mounting the Bar and Chain

Tensioning the Saw Chain (front chain tensioner)

Retensioning during cutting work

How to adjust chain tension while cutting to maintain optimal performance.

Fuel

Mixing Fuel

Instructions and warnings regarding the correct mixture ratio of gasoline and engine oil.

Fueling

Fill up with fuel

Procedure for safely filling the fuel tank without spilling or overfilling.

Chain Lubricant

Filling Chain Oil Tank

Procedure for filling the chain oil tank to ensure proper chain lubrication.

Checking Chain Lubrication

Starting Stopping the Engine

Detailed instructions for starting and stopping the engine.

Starting the Engine

Detailed steps for starting the engine, including choke and decompression valve use.

Starting Stopping the Engine

Starting

Procedure for setting the starting throttle position and engaging the starter rope.

When the engine begins to fire

Actions to take when the engine fires but doesn't run continuously.

As soon as the engine runs

Steps to take immediately after the engine starts running, like releasing controls.

If the engine does not start

Troubleshooting steps if the engine fails to start, including flooded carburetor checks.

Operating Instructions

During Operation

General operating advice, including mixture settings and chain tension checks.

Check chain tension frequently

Importance of regularly checking and adjusting chain tension.

After Finishing Work

Steps to take after completing work, including slackening the chain.

Oil Quantity Control

Taking Care of the Guide Bar

Maintenance procedures for the guide bar to ensure optimal cutting performance and longevity.

Taking Care of the Guide Bar

Cleaning the Air Filter

Procedure for cleaning the air filter to maintain engine performance and efficiency.

Cleaning the Air Filter

Adjusting the Carburetor

Instructions for adjusting the carburetor for optimal engine performance at different conditions.

Adjusting the Carburetor

Setting the idle speed

Procedure for adjusting the idle speed for smooth engine operation.

Engine stops when idling

Troubleshooting steps if the engine stalls when idling.

Saw chain rotates at idle speed

Troubleshooting steps if the saw chain moves while the engine is idling.

Speed erratic when idling, poor acceleration

Diagnosing and correcting engine performance issues like erratic idling or poor acceleration.

Checking and Replacing the Chain Sprocket

Maintaining and Sharpening the Saw Chain

Sharpening and side plate angles

Correct angles for sharpening saw chain cutters to ensure performance and safety.

Proper sharpening

Detailed guidance on the correct technique for sharpening saw chains.

Maintenance and Care

Ordering Spare Parts

Maintenance and Repairs

Guidance on performing maintenance and repairs, recommending authorized dealers.

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