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Echo CS-4910 User Manual

Echo CS-4910
60 pages
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X7503314200
© 09/20 ECHO Incorporated
Operator’s
Manual
CS-4910
Chain Saw
The engine exhaust from this product contains chemicals known to
the State of California to cause cancer, birth defects, or other
reproductive harm.
Read and understand all provided literature before use.
Failure to do so could result in serious injury.
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Echo CS-4910 Specifications

General IconGeneral
Engine Displacement50.2 cc
Engine Type2-stroke
Power Output3.5 HP
Bar Length Options16, 18, 20 inches
Chain Pitch0.325 inches
Ignition SystemDigital
Vibration Reduction SystemYes
Bar Length18 inches
Fuel Capacity16.9 fl. oz.
Weight10.4 lbs (powerhead only)
Chain Gauge0.050 inches

Summary

SAFETY

Rules For Safe Operation

Essential safety precautions and guidelines for operating the chain saw.

Chain Brake Operation

Explains the operation and testing procedure for the chain brake.

Automatic Chain Brake

Describes how the automatic chain brake functions and how to test it.

Personal Protective Equipment

Guidelines on operator's physical condition and required safety gear.

DESCRIPTION

Chain Tension Adjustment

Procedure for properly tensioning the saw chain.

OPERATION

Fuel Requirements

Requirements and specifications for gasoline and two-stroke oil mixture.

Fuel Handling Safety

Safety precautions for mixing, storing, and handling fuel.

Fuel Mixing Instructions

Step-by-step guide for mixing fuel and oil at a 50:1 ratio.

Chain Lubrication

Information on proper chain lubrication and oil types.

Starting Cold Engine

Detailed steps for starting a cold engine on the chain saw.

Starting Warm Engine

Instructions for starting the chain saw when the engine is already warm.

Running and Stopping

Procedures for operating and safely stopping the chain saw engine.

Cutting Techniques

General advice and safety warnings for cutting with the chain saw.

MAINTENANCE

TROUBLESHOOTING

Engine Problem Chart

A table listing common engine problems, causes, and remedies.

STORAGE

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