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Makita DCS6401 - User Manual

Makita DCS6401
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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

Other manuals for Makita DCS6401

Preview: Instruction Manual
Instruction Manual32 pages

Questions and Answers

  • A
    adkinscodyAug 17, 2025
    Why does my Makita DCS6401 Chainsaw engine not start?
    • J
      joseph09Aug 18, 2025
      If your Makita Chainsaw engine is not starting or is starting with difficulty, check the following: * Ignition spark. * Fuel tank to ensure it's filled. * Starter to ensure it engages. * Wiring, plug cap, and spark plug for any defects. The issue might be a malfunction in the fuel supply system, compression system, or a mechanical malfunction.
  • L
    Larry BowersAug 20, 2025
    Why is my Makita DCS6401 Chainsaw engine hard to start?
    • M
      Michelle ReynoldsAug 20, 2025
      If your Makita Chainsaw engine doesn't start easily, it could stem from issues within the fuel supply, compression, or mechanical components. Check the STOP switch position and inspect for wiring faults, a defective plug cap or spark plug. Ensure the choke is correctly positioned, the carburetor isn't defective, the suction head is clean, and the fuel line is free from bends or interruptions. Also, examine the cylinder base packing ring, radial shaft packings, cylinder or piston rings, and the spark plug seal. Finally, verify the starter spring and internal engine parts are intact.
  • S
    Scott Sherman MDAug 23, 2025
    How to troubleshoot insufficient power in my Makita Chainsaw?
    • A
      Angela Rodriguez DDSAug 23, 2025
      If your Makita Chainsaw lacks power, several factors could be responsible: * A dirty air filter. * Incorrect carburetor adjustment. * A clogged muffler. * A blocked exhaust channel in the cylinder. * A clogged spark arrester screen. Check each of these components to restore optimal performance.
  • C
    Christopher MartinezAug 26, 2025
    Why is my Makita Chainsaw not lubricating the chain?
    • J
      Jonathan WilsonAug 26, 2025
      If your Makita Chainsaw chain isn't being lubricated, the oil tank might be empty. Also, the oil guide groove might be dirty. Check these two things to ensure proper chain lubrication.
  • J
    Jesse RussoAug 27, 2025
    Why is my Makita DCS6401 difficult to start when warm?
    • D
      Dawn SchneiderAug 28, 2025
      If you're having trouble starting your warm Makita Chainsaw, the carburetor adjustment might be incorrect. You should check it.
  • M
    Mrs. Andrea GarciaAug 30, 2025
    What to do if the chain on my Makita DCS6401 Chainsaw does not run?
    • T
      tandersonAug 30, 2025
      If the chain on your Makita Chainsaw isn't running, it's possible that the chain brake is engaged. Please, check the chain brake.
  • A
    Allison PrattSep 1, 2025
    What to do if my Makita Chainsaw engine starts, but dies immediately?
    • C
      Christopher WrightSep 1, 2025
      If your Makita Chainsaw engine starts but immediately shuts down, it could be due to several reasons. Try these: * Adjust the idling. * Clean or replace the fuel filter and carburetor. * Make sure the tank venting is working correctly and the fuel line is intact. * Check the cable and STOP switch.
  • E
    emitchellSep 4, 2025
    How to fix warm start difficulties with my Makita DCS6401?
    • K
      Keith DanielsSep 4, 2025
      If you're experiencing warm start difficulties with your Makita Chainsaw, the issue might stem from an incorrect carburetor adjustment. To resolve this, adjust the carburetor correctly.
  • K
    Kyle PatelSep 7, 2025
    What to do if the chain does not run on my Makita DCS6401 Chainsaw?
    • M
      Melissa KellySep 7, 2025
      If the chain on your Makita Chainsaw isn't running, it's likely because the chain brake is activated. Releasing the chain brake should solve this issue.
  • B
    Beth MatthewsSep 9, 2025
    What to do if my Makita DCS6401 Chainsaw starts then dies?
    • K
      Keith MosesSep 9, 2025
      If your Makita Chainsaw starts but immediately dies, it could be due to several issues. Check the idling adjustment, and make sure the suction head or carburetor aren't dirty. Also, inspect the tank venting system, fuel line, and cable for defects, and ensure the STOP switch and starting valve are functioning correctly and are clean.

Summary

Chain Saw Safety Precautions

Operator Safety and Kickback Prevention

Essential safety rules, including kickback avoidance.

General Safety Precautions

Operator Condition and Hazard Awareness

Covers operator health, physical condition, and hazard awareness.

Chain Saw Operation Basics

Fueling and Engine Starting

Procedures for fueling and starting the chain saw engine.

Understanding Reactive Forces

Kickback, Pushback, and Pull-in Explained

Detailed explanation of reactive forces during cutting.

Avoiding Kickback

Kickback Avoidance Steps

Practical steps to prevent dangerous kickback situations.

Cutting Techniques

Felling a Tree Safely

Instructions and safety for cutting down trees.

Bucking and Limbing Operations

Safe Bucking and Limbing Practices

Guidelines for cutting logs and removing branches.

Maintenance and Storage

Routine Maintenance and Storage

Routine maintenance and proper storage of the chain saw.

Component Identification

Denomination of Components

Labels and descriptions of all chain saw parts.

Putting into Operation

Mounting the Guide Bar and Saw Chain

Step-by-step guide to attach the guide bar and chain.

Chain Tension and Brake Checks

Chain Brake Operation

How to engage, release, and test the chain brake.

Fuel and Oil Management

Fuel Mixture, Storage, and Safety

Fuel ratios, storage, and safety precautions.

Engine Starting and Stopping

Engine Starting Procedures

Detailed steps for starting the chain saw engine.

Carburetor Adjustment and Winter Operation

Carburetor Adjustment Procedure

Steps for adjusting the carburetor for optimal performance.

Saw Chain Maintenance

Sharpening and Proper Techniques

Instructions and techniques for sharpening the saw chain.

Guide Bar and Chain Maintenance

Replacing the Saw Chain

Guide to removing and installing a new saw chain.

Air Filter Cleaning

Air Filter Cleaning Methods

Procedures for cleaning fleece and nylon air filters.

Spark Plug and Ignition Checks

Spark Plug Replacement and Ignition Test

Replacing spark plug and checking ignition spark.

Periodic Maintenance Schedule

Maintenance Tasks and Frequency

A schedule of maintenance tasks and their required frequency.

Troubleshooting Guide

Common Malfunctions and Causes

Table identifying common problems and their causes.

Makita DCS6401 Specifications

General IconGeneral
Engine Displacement64 cc
Weight6.3 kg
Chain Pitch3/8"
Fuel Capacity0.75 L
Oil Capacity0.42 L

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