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Shindaiwa 300S - User Manual

Shindaiwa 300S
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OWNER’S/OPERATOR’S MANUAL
SHINDAIWA MODELS 300S,
360, 377, CHAIN SAW
WARNING!
Minimize the risk of injury to yourself and others! Read
this manual and familiarize yourself with the contents.
Always wear eye and hearing protection when operating
this unit.
Part Number 72363-93115 Rev. 02/08
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Summary

Attention Statements

Warning Statements (Bodily Injury)

Statements with "WARNING" and a triangle symbol provide info to prevent serious bodily injury.

Caution Statements (Mechanical Damage)

Statements with "CAUTION" provide info to prevent mechanical damage to the unit.

Kickback Safety Features

Kickback Safety Precautions

Use Low-Kickback Components

Utilize low-kickback chain, brakes, or special guide bars to reduce kickback hazards.

Additional Safety Precautions

Two-Handed Operation Required

One-handed operation can lead to loss of control and injury; the saw is designed for two-handed use.

Wear Appropriate Protective Gear

Always wear safety footwear, snug clothing, gloves, and eye, hearing, and head protection.

Maintain Safe Work Area

Keep bystanders and animals away from the saw when starting or operating.

Specifications

Recommended Bar and Chain Combinations

Specific chain types and guide bar lengths recommended for models 300S, 360, and 377.

Installing and Adjusting the Guide Bar and Saw Chain (Continued)

Warning: Sharp Chain Cutters

Saw chain cutters are extremely sharp; always wear gloves when handling.

Warning: Operate with Clutch Cover

Never operate the saw if the clutch cover is not installed for safety.

Important: Chain Adjustment Critical

Proper chain tension is vital for performance, chain life, and operator safety.

Warning: Loose Chain Hazard

A loose saw chain can jump off the guide bar, posing a serious injury risk.

Mixing Fuel and Filling Tank

Warning: Refueling Safety Precautions

Follow safe refueling steps to minimize fire, burn, and injury risks.

Caution: Gasoline and Oil Types

Use unleaded gasoline with max 10% alcohol and Shindaiwa-approved 2-cycle oils.

Important: 50:1 Fuel Mixture Ratio

Shindaiwa engines require a 50:1 fuel mix; incorrect ratios can cause severe engine failure.

Mixing Fuel and Filling Tank (Continued)

Bar Oil Reservoir Filling

Instructions for filling the bar oil reservoir for proper chain lubrication.

Caution: Lubrication is Critical

Proper lubrication is essential for saw performance and longevity; use quality oil only.

Engine Start and Stop Procedures

Warning: Fast Idle Safety

Fast idle feature causes chain rotation on start; ensure a safe work area.

Engine Starting Steps

Detailed steps for starting the saw engine, including choke and fast idle settings.

Engine Start and Stop Procedures (Continued)

Engine Stopping Procedure

Stop the engine by moving the ignition switch to the "OFF" position.

Starting a Flooded Engine

Warning: Ignition Switch Must Be Off

Ensure ignition switch is OFF to prevent fuel vapor ignition during this procedure.

Warning: Clear Spark Plug Opening

Keep clear of spark plug opening as excess fuel is ejected during starter operation.

Carburetor Adjustments (Non-EPA Compliant)

Caution: Avoid No-Load Operation

Running the saw at full throttle without load can cause engine seizure.

Caution: H-Speed Needle Limit

Do not adjust H-speed needle below 3/4 turn to prevent potential engine seizure.

Chain Brake Operation and Service

Chain Brake Functionality

Explains how the chain brake stops saw chain rotation when the brake lever is engaged.

Warning: Kickback Risk Reduction

Chain brake reduces kickback risk but requires careful operation; not a substitute for safety.

Chain Brake Operation and Service (Continued)

Warning: Test Brake Engagement

If the chain brake fails to stop the chain during testing, do not operate the saw.

Cutting with the Saw

Think Safety During Cutting

Wear PPE, clear workspace, maintain footing, and use correct throttle and bar pressure.

Felling Trees

Warning: Unbalanced Tree Hazard

Unpredictable falls from unbalanced trees require experienced fallers.

Felling Trees (Continued)

Warning: Hinge Failure Risk

Improper hinge can cause saw pinching or altered fall direction.

Warning: Angled Cut Affects Fall

Angled felling cuts may cause tree splitting and change fall direction.

Bucking Techniques

Warning: Uphill Cutting Safety

Cut downed timber from uphill side; be aware of rolling or shifting logs.

Warning: Kickback in Over-Height Cutting

Kickback risk increases with high or out-of-position cuts; avoid overreaching.

Maintenance Overview

Warning: Safety First Before Maintenance

Stop engine and disconnect spark plug wire before performing any maintenance.

Troubleshooting Engine Start Issues

Engine Does Not Crank

Diagnosing issues when the engine fails to crank, possibly related to the recoil starter.

Troubleshooting Low Power Output

Troubleshooting Additional Problems

Summary

Attention Statements

Warning Statements (Bodily Injury)

Statements with "WARNING" and a triangle symbol provide info to prevent serious bodily injury.

Caution Statements (Mechanical Damage)

Statements with "CAUTION" provide info to prevent mechanical damage to the unit.

Kickback Safety Features

Kickback Safety Precautions

Use Low-Kickback Components

Utilize low-kickback chain, brakes, or special guide bars to reduce kickback hazards.

Additional Safety Precautions

Two-Handed Operation Required

One-handed operation can lead to loss of control and injury; the saw is designed for two-handed use.

Wear Appropriate Protective Gear

Always wear safety footwear, snug clothing, gloves, and eye, hearing, and head protection.

Maintain Safe Work Area

Keep bystanders and animals away from the saw when starting or operating.

Specifications

Recommended Bar and Chain Combinations

Specific chain types and guide bar lengths recommended for models 300S, 360, and 377.

Installing and Adjusting the Guide Bar and Saw Chain (Continued)

Warning: Sharp Chain Cutters

Saw chain cutters are extremely sharp; always wear gloves when handling.

Warning: Operate with Clutch Cover

Never operate the saw if the clutch cover is not installed for safety.

Important: Chain Adjustment Critical

Proper chain tension is vital for performance, chain life, and operator safety.

Warning: Loose Chain Hazard

A loose saw chain can jump off the guide bar, posing a serious injury risk.

Mixing Fuel and Filling Tank

Warning: Refueling Safety Precautions

Follow safe refueling steps to minimize fire, burn, and injury risks.

Caution: Gasoline and Oil Types

Use unleaded gasoline with max 10% alcohol and Shindaiwa-approved 2-cycle oils.

Important: 50:1 Fuel Mixture Ratio

Shindaiwa engines require a 50:1 fuel mix; incorrect ratios can cause severe engine failure.

Mixing Fuel and Filling Tank (Continued)

Bar Oil Reservoir Filling

Instructions for filling the bar oil reservoir for proper chain lubrication.

Caution: Lubrication is Critical

Proper lubrication is essential for saw performance and longevity; use quality oil only.

Engine Start and Stop Procedures

Warning: Fast Idle Safety

Fast idle feature causes chain rotation on start; ensure a safe work area.

Engine Starting Steps

Detailed steps for starting the saw engine, including choke and fast idle settings.

Engine Start and Stop Procedures (Continued)

Engine Stopping Procedure

Stop the engine by moving the ignition switch to the "OFF" position.

Starting a Flooded Engine

Warning: Ignition Switch Must Be Off

Ensure ignition switch is OFF to prevent fuel vapor ignition during this procedure.

Warning: Clear Spark Plug Opening

Keep clear of spark plug opening as excess fuel is ejected during starter operation.

Carburetor Adjustments (Non-EPA Compliant)

Caution: Avoid No-Load Operation

Running the saw at full throttle without load can cause engine seizure.

Caution: H-Speed Needle Limit

Do not adjust H-speed needle below 3/4 turn to prevent potential engine seizure.

Chain Brake Operation and Service

Chain Brake Functionality

Explains how the chain brake stops saw chain rotation when the brake lever is engaged.

Warning: Kickback Risk Reduction

Chain brake reduces kickback risk but requires careful operation; not a substitute for safety.

Chain Brake Operation and Service (Continued)

Warning: Test Brake Engagement

If the chain brake fails to stop the chain during testing, do not operate the saw.

Cutting with the Saw

Think Safety During Cutting

Wear PPE, clear workspace, maintain footing, and use correct throttle and bar pressure.

Felling Trees

Warning: Unbalanced Tree Hazard

Unpredictable falls from unbalanced trees require experienced fallers.

Felling Trees (Continued)

Warning: Hinge Failure Risk

Improper hinge can cause saw pinching or altered fall direction.

Warning: Angled Cut Affects Fall

Angled felling cuts may cause tree splitting and change fall direction.

Bucking Techniques

Warning: Uphill Cutting Safety

Cut downed timber from uphill side; be aware of rolling or shifting logs.

Warning: Kickback in Over-Height Cutting

Kickback risk increases with high or out-of-position cuts; avoid overreaching.

Maintenance Overview

Warning: Safety First Before Maintenance

Stop engine and disconnect spark plug wire before performing any maintenance.

Troubleshooting Engine Start Issues

Engine Does Not Crank

Diagnosing issues when the engine fails to crank, possibly related to the recoil starter.

Troubleshooting Low Power Output

Troubleshooting Additional Problems

Shindaiwa 300S Specifications

General IconGeneral
Engine Type2-stroke
Fuel Tank Capacity0.3 L
Oil Tank Capacity0.2 L
Chain Pitch3/8 inch
Chain Gauge0.050 inch

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