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Makita DCS6421 User Manual

Makita DCS6421
76 pages
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DCS6400, DCS6401
DCS6420, DCS6421
DCS7300, DCS7301
DCS7900, DCS7901
Owner’s and Safety Manual
for Gasoline Chain Saws (page 2 - 37)
Manuel d’emploi et de sécurité
de tronçonneuses thermiques (page 38 - 73)
WARNING!
Read and understand this Manual. Always follow safety precautions in the Owner’s and Safety Manual. Improper use can cause serious injury! The engine exhaust from this
product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Preserve this Manual carefully!
WARNING!
FUELS WITH MORE THAN 10% ETHANOL ARE NOT APPROVED FOR USE IN MAKITA 2-STROKE ENGINES!
Use of alternative fuels, such as E-20 (20% ethanol), E-85 (85% ethanol) or any fuels not meeting MAKITA requirements are not approved for use in MAKITA 2-stroke gasoline engines!
USE OF ALTERNATIVE FUELS CAN CAUSE THE FOLLOWING PROBLEMS:
Poor engine performance, loss of power, overheating, fuel vapor lock, improper clutch engagement, premature deterioration of fuel lines, premature deterioration of gaskets,
premature deterioration of carburetors.
USING ALTERNATIVE FUELS AND/OR 2-STROKE OILS NOT ACCORDING TO JASO FC OR ISO-L-EGD IN MAKITA 2-STROKE ENGINES WILL VOID YOUR ENGINE WARRANTY!
ATTENTION!
Suivez toujours les conseils de sécurité du présent manuel d’emploi et de sécurité. Une utilisation incorrecte de la tronçonneuse peut entraîner des blessures graves! Lisez et comprenez
ce manuel. Les gaz d’échappement émis par ce produit contiennent des produits chimiques connus par l’Etat de Californie pour provoquer le cancer, des défauts de naissance
ou autres dommages de reproduction. Conservez avec soin ce manuel!
ATTENTION!
LES CARBURANTS CONTENANT PLUS DE 10 % D’ÉTHANOL NE SONT PAS AUTORISÉS POUR L’UTILISATION DANS LES MOTEURS 2 TEMPS!
Les carburants alternatifs, tels que E-20 (20 % d‘éthanol), E-85 (85 % d’éthanol) ou tout autre carburant n’étant pas conformes aux exigences MAKITA ne sont pas autorisés
pour l’utilisation dans les moteurs essence à 2 temps MAKITA!
L’UTILISATION DE CARBURANTS ALTERNATIFS PEUT CAUSER LES PROBLÈMES SUIVANTS:
Faible performance moteur, Perte de puissance, Surchauffe, Bouchons de vapeur dans la conduite d’essence, Embrayage incorrect, Détérioration prématurée des conduites
d’essence, Détérioration prématurée des joints d’étanchéité, Détérioration prématurée des carburateurs.
L’UTILISATION DE CARBURANTS ALTERNATIFS ET/OU D’HUILES 2 TEMPS NON-CONFORMES À LA NORME JASO FC OU ISO-L-EGD DANS LES MOTEURS À 2 TEMPS
MAKITA ANNULERA VOTRE GARANTIE MOTEUR!

Table of Contents

Questions and Answers:

Makita DCS6421 Specifications

General IconGeneral
BrandMakita
ModelDCS6421
CategoryChainsaw
LanguageEnglish

Summary

Emissions Warranty Information

Warranty Details and Responsibilities

Covers warranty period, parts, owner duties, claims process, and emission control system.

Product Overview

Delivery Inventory and Symbols

Lists included items and explains warning and information symbols used in the manual.

Operator Safety Precautions

General Safety Rules and Kickback Prevention

Essential safety guidelines for chain saw operation, including kickback awareness and proper handling.

Safe Work Practices

Protective Gear and Saw Handling

Guidelines on protective clothing, eye/ear protection, and correct methods for handling the chainsaw.

Starting and Operating the Chainsaw

Fueling, Starting, and Basic Operation

Instructions for safe fueling, engine starting procedures, and basic operation.

Understanding Chain Saw Hazards

Reactive Forces: Kickback, Pushback, Pull-in

Explains dangerous reactive forces like kickback, pushback, and pull-in, and their causes and prevention.

Cutting Techniques

Tree Felling Procedures

Detailed steps for safely felling trees, including notch creation, hinge, and escape paths.

Specific Cutting Applications

Bucking and Limbing Logs and Branches

Techniques for cutting logs into sections (bucking) and removing branches (limbing).

Maintenance and Storage

Keeping the Saw in Good Working Order

Guidelines for regular maintenance, cleaning, and proper storage of the chainsaw for longevity.

Chain and Brake System Checks

Chain Tension and Chain Brake Functionality

Procedures for checking chain tension and verifying the proper operation of the chain brake safety device.

Lubrication System Adjustments

Adjusting Chain Oil Feed Rate

Instructions on how to adjust the chain oil pump for optimal lubrication of the chain and guide bar.

Engine Operation

Starting, Stopping, and Chain Brake Test

Step-by-step guide for starting the engine (cold/warm), stopping it safely, and testing the chain brake.

Carburetor Adjustment

Setting Idle Speed and Maximum Engine Speed

Detailed instructions for adjusting the carburetor for optimal engine performance, idle, and maximum speed.

Saw Chain Maintenance

Proper Sharpening Techniques and Depth Limiters

Guidance on how to sharpen the saw chain correctly, including angles and depth limiter settings.

Component Maintenance

Guide Bar, Saw Chain, and Fuel Filter Care

Procedures for cleaning the guide bar, replacing the saw chain, and replacing the fuel filter for optimal performance.

Air Filter System

Cleaning and Replacing the Air Filter

Instructions for cleaning or replacing the air filter to ensure optimal engine performance and prevent damage.

Ignition System and Muffler

Spark Plug Replacement and Ignition Check

Steps for replacing the spark plug, checking the ignition spark, and inspecting muffler screws for tightness.

Starting System Repair

Replacing Starter Cable and Return Spring

Procedures for replacing the starter cable and the return spring within the starter mechanism.

Engine Area Cleaning

Cylinder Area and Spark Arrester Screen

Instructions for cleaning the cylinder fins, fan housing, and cleaning/replacing the spark arrester screen.

Periodic Maintenance Schedule

Regular Service and Inspection Tasks

A comprehensive schedule for performing regular maintenance and inspections to ensure safety and longevity.

Troubleshooting and Guarantee

Malfunctions, Causes, and Solutions

Identifies common malfunctions, their causes, and suggested solutions for chain saw operation.

Spare Parts and Accessories

Part Identification and Ordering

Lists part numbers for components and accessories, and guidance on how to order them.

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