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Echo CS-2511TES User Manual

Echo CS-2511TES
88 pages
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Ref. No. 401-40
CS-2511TES
ECHO:
shindaiwa:
251Ts 251TCs
(Serial number: 37000001 and after)

Table of Contents

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Echo CS-2511TES Specifications

General IconGeneral
Engine Displacement25.0 cc
Engine Type2-stroke
Chain Pitch3/8"
Weight2.3 kg
Fuel Capacity0.19 L
Oil Capacity0.14 L
Chain OilAutomatic
Chain BrakeInertia
Bar Length10 inches
Chain Gauge0.050 inch

Summary

Introduction

Service Information

1-1 Specifications

Detailed technical specifications for chainsaw dimensions, engine, fuel, and components.

1-2 Technical data

Specific technical parameters for engine, ignition, and carburetor adjustments.

1-3 Torque limits

Specifies precise torque values for various fasteners and components during assembly.

1-4 Special maintenance materials

Lists specific lubricants, sealants, and greases required for maintenance tasks.

1-5 Service limits

Defines acceptable wear and measurement limits for critical engine and component parts.

1-6 Special tools

Lists specialized tools required for proper servicing and repair of the equipment.

Starter System

2-1 Disassembling starter assembly

Step-by-step guide for safely dismantling the starter mechanism.

2-2 Replacing starter rope

Instructions for removing and installing a new starter pull rope.

2-3 Assembling starter

Procedure for correctly reassembling the starter components after service.

2-4 Replacing starter pawl

Steps for replacing the starter pawl and associated spring.

Ignition System

3-1 Troubleshooting guide

Diagnostic chart to identify and resolve ignition system issues.

3-2 Testing spark

Method for checking spark output using a spark tester.

3-3 Inspecting spark plug

Procedure for inspecting the spark plug for fouling or damage.

3-4 Replacing spark plug cap and coil

Instructions for replacing the spark plug cap and ignition coil assembly.

3-5 Inspecting ignition switch

Steps to test the ignition switch using a multimeter.

3-6 Replacing ignition switch

Detailed instructions for removing and installing the ignition switch.

3-7 Replacing ignition coil

Procedure for replacing the ignition coil unit.

3-8 Setting pole shoe air gaps

Guide to adjusting the air gap between flywheel and ignition coil.

3-9 Inspecting flywheel and key

How to inspect the flywheel, its key, and magnetic force.

Fuel System

4-1 Inspecting air filter

Method for inspecting, cleaning, and replacing the air filter element.

4-2 Replacing air cleaner cover latch

Steps for replacing the latch mechanism of the air cleaner cover.

4-3 Inspecting fuel cap and fuel strainer

How to inspect the fuel cap and fuel strainer for damage or blockage.

4-4 Inspecting fuel tank and line

Procedure for inspecting the fuel tank and lines for leaks.

4-5 Inspecting and replacing tank vent

How to inspect and replace the fuel tank vent for proper pressure regulation.

4-6 Replacing purge bulb

Steps for removing and installing the fuel purge bulb.

4-7 Replacing fuel line and fuel return line

Instructions for replacing the fuel and fuel return lines.

4-8 Adjusting carburetor

Guidelines and initial settings for adjusting the carburetor for optimal engine performance.

4-9 Testing carburetor

Method for testing the carburetor for fuel leaks and proper function.

Clutch System

5-1 Inspecting clutch parts

How to inspect clutch shoes, springs, drum, and hub for wear or damage.

5-2 Replacing clutch parts

Instructions for replacing individual components of the clutch system.

5-3 Installing clutch assembly

Procedure for correctly installing the clutch assembly onto the crankshaft.

Chain Brake System

6-1 Replacing brake lever and torsion spring

Steps for replacing the chain brake lever and its torsion spring.

6-2 Inspecting chain brake parts

How to inspect all parts of the chain brake system for damage or wear.

Saw Chain Lubrication System

7-1 Inspecting oil cap and strainer

Procedure for inspecting the oil cap and strainer for proper function.

7-2 Inspecting oil tank vent

How to inspect the oil tank vent for proper airflow.

7-3 Inspecting and replacing oil line

Instructions for inspecting and replacing the oil delivery line.

7-4 Inspecting worm gear

How to inspect the worm gear of the auto-oiler assembly.

7-5 Cleaning and replacing auto-oiler assembly

Steps for cleaning, disassembling, and replacing the auto-oiler assembly.

Engine

8-1 Testing cylinder compression

Method for testing engine cylinder compression to assess its health.

8-2 Cleaning cooling air passages

How to clean cooling fins and passages to prevent engine overheating.

8-3 Inspecting muffler and exhaust port

Procedure for inspecting and cleaning the engine's muffler and exhaust port.

8-4 Testing crankcase and cylinder sealings

Method for testing the crankcase and cylinder for air leaks.

8-5 Removing engine block

Steps for safely removing the main engine block assembly.

8-6 Inspecting cylinder

How to inspect the cylinder bore and wall for wear or damage.

8-7 Inspecting piston and piston ring

Procedure for inspecting the piston and its rings for wear or breakage.

8-8 Replacing oil seal

Instructions for replacing engine oil seals to prevent oil leaks.

8-9 Inspecting crankcase and crankshaft

How to inspect the crankcase halves and crankshaft for damage.

8-10 Replacing oil seal and ball bearing

Steps for replacing oil seals and ball bearings in the engine.

8-11 Assembling crankshaft and crankcase

Instructions for assembling the crankshaft into the crankcase.

8-12 Installing piston ring and cylinder

Procedure for installing piston rings and the cylinder assembly.

Handle and Control System

9-1 Replacing lifting hook

Steps for removing and installing the lifting hook assembly.

9-2 Replacing throttle control parts

Instructions for replacing throttle trigger, rod, and lockout components.

9-3 Replacing front handle and spring

Steps for replacing the front handle and its associated spring.

9-4 Replacing rear handle and springs

Instructions for replacing the rear handle and its springs.

Guide Bar Mounting System

10-1 Replacing nut for fixing guide bar

Procedure for replacing the nut that secures the guide bar.

10-2 Replacing chain tensioner

Instructions for replacing the chain tensioner mechanism.

10-3 Replacing guide bar stud

Steps for replacing the stud that mounts the guide bar.

Maintenance Guide

11-1 Troubleshooting guide

A comprehensive guide to diagnosing and solving common operational problems.

11-2 Disassembly chart

A flowchart illustrating the disassembly sequence for major components.

11-3 Service intervals

Recommended schedules for routine maintenance tasks based on usage.

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