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Husqvarna 266 User Manual

Husqvarna 266
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Chain saw
model 266
Operator’s maintenance manual
TECHNICAL SPECIFICATION
Displacement . . . . 66.7 cm
3
Bore . . . . . . . . . . . 50 mm
Stroke . . . . . . . . . . 34 mm
Ignition advance. . . . . 25˚ before t.d.c. at 8500 rpm
Sparking Plug . . . . Champion CJ 7Y, PAL P8Y
Electrode gap . . . . 0.5 mm
Carburettor . . . . . . Diaphragm type
Tillotson HS 163 A
Fuel tank capacity . . . .0.75 l
Oil tank capacity . . . . . 0.45 l
Sawing chain. . . . . . .3/8” pitch
Guide Bar . . . . . . . . . . 15”
Weight empty, incl. 15”
guide bar , chain . . . . . 7.1 kg (SE)
and chain brake . . . . . 7.25 kg (SG)
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Husqvarna 266 Specifications

General IconGeneral
BrandHusqvarna
Model266
CategoryChainsaw
LanguageEnglish

Summary

Chain Saw Model 266 Overview

Technical Specifications

Lists key technical data like displacement, bore, stroke, capacities, and weights for the Husqvarna 266 chain saw.

Chain Saw Assembly and Fueling

Component Identification

Identifies and labels major parts of the chain saw, including starter, controls, and guards.

Guide Bar and Chain Assembly

Provides step-by-step instructions for correctly fitting the guide bar and chain onto the chain saw.

Fuel and Oil Mixture Guidelines

Details the correct petrol-to-oil ratios and recommended oil types for two-stroke engines.

Chain Brake System Operation and Maintenance

Chain Brake Activator (Swed-o-Matic)

Explains the function of the Swed-o-Matic chain brake and how it should release under load.

Chain Brake Maintenance Checks

Outlines regular checks for the chain brake band, mechanism lubrication, and functional testing.

Starting Procedures and Carburetor Adjustment

Starting the Chain Saw

Provides detailed steps for starting the engine with both cold and warm conditions, including choke usage.

Carburetor Adjustment Guide

Explains the adjustment of low speed (L) and high speed (H) needles and idling speed for optimal engine performance.

Routine Maintenance Tasks

Air Filter Cleaning Procedure

Details how to access, clean, and maintain the air filter for optimal engine power and carburetor function.

Starter Cord and Return Spring Replacement

Guides on how to change the starter cord and replace the return spring mechanism.

Special Features and Winter Operation

Heated Handles System

Describes the heated handles feature, its thermostat regulation, and temperature graph.

Winter Use Recommendations

Advises on modifications for cold weather, such as opening a cover to prevent carburetor icing.

Oil Pump Adjustment

Comprehensive Maintenance Schedule

Daily Maintenance Checklist

Lists essential daily checks including cleaning the saw body, air filter, and bar groove.

Weekly Maintenance Tasks

Covers weekly checks such as spark plug inspection, guide bar burrs, and clutch drum lubrication.

Monthly Maintenance Actions

Details monthly tasks including fuel/oil tank cleaning and carburetor cleaning.

Safety Reminders and Procedures

Safe Handling and Personal Protection

Provides critical safety advice on transporting, fueling, operating the saw, and required personal protective equipment.

Safe Operating Procedures

Outlines safety guidelines for felling, cutting split wood, and working on slopes to prevent injury.

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