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Stihl MSA 140 C - User Manual

Stihl MSA 140 C
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STIHL MSA 120 C, MSA 140 C
Instruction Manual
Manual de instrucciones
WARNING
To reduce the risk of kickback injury use
STIHL reduced kickback bar and STIHL low
kickback chain as specified in this manual or
other available low kickback components.
ADVERTENCIA
Para reducir el riesgo de lesionarse como
resultado de un culatazo, utilice la barra y la
cadena de contragolpe reducido de la forma
especificada en este manual o de otros
componentes reductores de contragolpe.
WARNING
Read Instruction Manual thoroughly before use and
follow all safety precautions – improper use can cause
serious or fatal injury.
ADVERTENCIA
Antes de usar la máquina lea y siga todas las precauciones
de seguridad dadas en el manual de instrucciones – el uso
incorrecto puede causar lesiones graves o mortales.

Table of Contents

Questions and Answers

  • P
    pjonesSep 7, 2025
    Why Stihl MSA 140 C charging does not start when the battery is inserted into the charger?
    • S
      sheilasavageSep 7, 2025
      If charging does not start when the battery is inserted into the charger of your Stihl chainsaw, it could be because the battery is too warm or too cold. Leave the battery inserted in the charger; charging starts automatically as soon as the permitted temperature range is reached.
  • S
    Shane WallaceNov 25, 2025
    Why does my Stihl MSA 140 C Chainsaw not start when switched on?
    • C
      Cheryl WilliamsNov 25, 2025
      There are several reasons why your Stihl Chainsaw might not start: * The battery's charge might be too low, so charge the battery. * The battery could be too warm or cold. In this case, engage the chain brake, remove the battery, and allow it to cool down or warm up. * There might be a malfunction in the saw. Engage the chain brake, remove the battery, clean the electrical contacts, reinsert the battery, disengage the chain brake, and switch on the saw. If 3 LEDs continue to flash red, stop using the chainsaw and contact your STIHL servicing dealer. * The chainsaw may be too hot. Engage the chain brake, remove the battery and allow the chainsaw to cool down. * There could be a fault in the battery. Engage the chain brake, remove and refit the battery, disengage the chain brake, ...
  • I
    Ian AlvaradoNov 21, 2025
    Why Stihl MSA 140 C does not start?
    • N
      Nicole HancockNov 21, 2025
      If your Stihl chainsaw doesn't start when switched on, there could be several reasons. First, the battery's charge might be too low, so try charging it. Alternatively, the battery might be too warm or cold; in this case, engage the chain brake, remove the battery, and allow it to cool down or warm up. There might also be no electrical contact between the chainsaw and battery; engage the chain brake, remove the battery, and clean the electrical contacts in the battery compartment before reinserting the battery. If the saw or battery is damp, allow them to dry. If 3 LEDs continue to flash red after cleaning the contacts, do not use your chainsaw and contact your STIHL servicing dealer for assistance. If 4 LEDs continue to flash red, do not use the battery and contact your STIHL dealer for as...
  • B
    bjohnsonSep 18, 2025
    How to start charging Stihl Chainsaw if charging does not start when the battery is inserted into the charger?
    • C
      Cynthia HughesSep 18, 2025
      If charging doesn't start when the battery is inserted into the charger, it may be because the battery is too warm or too cold. Leave the battery inserted in the charger. Charging starts automatically as soon as the permitted temperature range is reached.
  • D
    Danielle WilliamsSep 16, 2025
    What to do if the battery is not being charged on my Stihl MSA 140 C Chainsaw?
    • B
      benjaminloweSep 16, 2025
      If the battery is not being charged, it could be due to: * No electrical contact between charger and battery. Remove the battery, clean the contacts on the charger, and then fit the battery. * A malfunction in the charger. Do not use the charger and contact your STIHL servicing dealer.
  • H
    harristimothySep 14, 2025
    What to do if my Stihl MSA 140 C Chainsaw battery is not being charged?
    • L
      Logan BaxterSep 14, 2025
      If your Stihl chainsaw battery is not being charged, it might be due to no electrical contact between the charger and battery. To solve this, remove the battery and clean the contacts on the charger before refitting the battery. If the charger has a malfunction, do not use the charger and contact your STIHL servicing dealer.
  • D
    Daniel GlassSep 12, 2025
    How to fix 1 LED flashing green on Stihl Chainsaw?
    • W
      wagnerallisonSep 13, 2025
      If 1 LED is flashing green on your Stihl chainsaw, the state of charge of the battery is too low. Charge the battery.
  • D
    Dr. Billy MiddletonSep 12, 2025
    What to do if 1 LED emits red light on Stihl MSA 140 C?
    • M
      Mark PerezSep 12, 2025
      If 1 LED emits red light on your Stihl chainsaw, the battery is either too warm or too cold. Engage the chain brake and remove the battery. Allow the battery to cool down or warm up.
  • V
    vwoodSep 9, 2025
    What to do if there is no electrical contact between Stihl MSA 140 C and battery?
    • A
      Angela SchaeferSep 9, 2025
      If there is no electrical contact between your Stihl chainsaw and the battery, engage the chain brake and remove the battery. Clean the electrical contacts in the battery compartment, then insert the battery.
  • D
    Donald FullerAug 20, 2025
    What to do if Stihl MSA 140 C cuts out during operation?
    • W
      William ParksAug 21, 2025
      If your Stihl chainsaw cuts out during operation, it could be due to the chainsaw being too hot. Engage the chain brake, remove the battery, and allow the chainsaw to cool down. Alternatively, there might be an electrical fault. In this case, engage the chain brake, remove and refit the battery, and then switch on the saw.

Summary

Safety Symbols on STIHL Products

General Power Tool Safety Warnings

Electrical Safety Precautions

Details safety precautions related to electrical hazards, including cord use and wet conditions.

Personal Safety Measures

Covers personal safety measures like staying alert, using PPE, and avoiding fatigue.

General Chain Saw Safety

General Chain Saw Safety Warnings

Specific safety warnings for operating chain saws, including body positioning and avoiding entanglement.

Preventing Kickback

Causes and Operator Prevention of Kickback

Explains kickback causes and preventative measures for safe operation.

IMPORTANT SAFETY INSTRUCTIONS

Intended Use of the Chainsaw

Defines the intended purpose of the chainsaw and warns against misuse.

Personal Protective Equipment and Chain Saw Safety

Personal Protective Equipment (PPE)

Details necessary protective apparel, eye protection, and head protection.

Chain Saw Safety Precautions

Safety precautions related to the chain saw itself, including electric shock and handling sharp parts.

Safe Chainsaw Operation

Before Operation Checklist

Steps to take before operating the chainsaw, including assembly and checks.

Holding and Controlling the Chainsaw

Proper Grip and Balance

Instructions on proper grip, balance, and body positioning for safe chainsaw operation.

Chainsaw Working Conditions

Kickback and Reactive Forces

Understanding Reactive Forces

Explains reactive forces like kickback, pull-in, and pushback and their dangers.

Kickback Details and Standards

Kickback Explained

Details kickback causes, effects, and factors influencing its occurrence.

Reducing Kickback Injury Risk

Devices for Reducing Kickback Injury

Discusses safety mechanisms like the chain brake and reduced kickback components.

Low Kickback Chains and Bars

Low Kickback Saw Chain and Reduced Kickback Bars

Explains low kickback chains and reduced kickback bars designed to minimize kickback risk.

Avoiding Kickback and Pull-in

Techniques to Avoid Kickback

Provides specific techniques and precautions to avoid kickback situations.

Understanding and Preventing Pull-in

Explains pull-in, a reactive force, its causes, and how to reduce the risk.

Chainsaw Reactive Forces

Preventing Pushback

Describes pushback, a reactive force, its causes, and preventative measures.

Proper Techniques for Cutting

Intended Uses for Cutting

Defines the intended uses of the chainsaw for cutting tasks and warns against misuse.

Bucking Techniques

Limbing and Pruning Techniques

Cutting Logs Under Tension

Safe Techniques for Cutting Tensioned Logs

Addresses the dangers and techniques for cutting logs under tension to prevent injury.

Felling Trees Safely

Felling Notches and Escape Paths

Felling Back Cut and Sapwood Cuts

Battery Safety Precautions

Battery Warnings and Instructions

General warnings and instructions for safe battery handling, charging, and storage.

Charger Safety Guidelines

Charger Warnings and Instructions

Safety precautions for using and handling the battery charger to prevent fire, shock, and damage.

Maintenance, Repair, and Storage

Before Starting Work Procedures

Preparing the Chain Saw for Operation

Steps to prepare the chainsaw before starting work, including charging and checks.

Charging the Battery

Battery Charging Process

Details the process of charging the battery and interpreting the charger's status lights.

Assembling the Chainsaw

Mounting and Removing Guide Bar and Chain

Tensioning the Chainsaw Chain

Proper Chain Tensioning

Explains how to properly tension the saw chain to ensure safety and cutting performance.

Lubricating the Saw Chain and Guide Bar

Chain and Guide Bar Lubrication

Instructions for lubricating the chain and guide bar, emphasizing proper lubricants.

The Chain Brake System

Engaging the Chain Brake

Describes how to engage the chain brake for safety and what conditions it operates under.

Chain Brake Operation and Maintenance

Battery Insertion and Removal

Removing the Battery from Chainsaw

Switching the Chainsaw On and Off

Switching Off the Chainsaw

Checking the Chainsaw Before Use

Checking Chain Brake Operation

Procedures for checking if the chain brake is functioning correctly before use.

Testing Chainsaw Controls and Lubrication

Storing the Chainsaw

Storing the Charger

Inspection and Maintenance of Chainsaw

Inspecting Chain Sprocket and Guide Bar

Guide Bar Inspection and Maintenance

Saw Chain Inspection, Maintenance, and Sharpening

Troubleshooting the Chainsaw and Battery

Chain Saw and Battery Troubleshooting

Troubleshooting common issues with the chainsaw and battery, including LED indicators.

Troubleshooting the Charger

Guide Bar and Saw Chain Combinations

Stihl MSA 140 C Specifications

General IconGeneral
Voltage36 V
Chain Gauge0.043 in
Chain Pitch1/4" P
Weight (without battery)2.6 kg
Sound Power Level94 dB(A)
Battery TypeLithium-Ion
Bar Length12 inches
Weight (alternative without battery)2.9 kg

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