Husqvarna 120 - User Manual

Other manuals for Husqvarna 120

Workshop Manual55 pages

Questions and Answers

E
estradalaurenJul 27, 2025
Why does my Husqvarna Saw engine not start?
- J
  joseph76Jul 27, 2025
  If your Husqvarna Saw engine won't start, several factors could be the cause. First, ensure you're using the correct fuel type; if not, drain the tank and refill it with the appropriate fuel. A dirty or wet spark plug can also prevent starting, so clean and dry it. Also, verify that the spark plug is tightened and the electrode gap is correct, replacing the spark plug if needed with the recommended type. If the engine is flooded due to repeated starts with full choke, remove and clean the spark plug, lay the saw on its side with the spark plug hole facing away, pull the starter rope 6-8 times, then reassemble the spark plug and attempt to start the saw.
P
Pamela HolmesAug 2, 2025
Why does my Husqvarna 120 Chainsaw engine start but then stop?
- W
  William CruzAug 2, 2025
  Your Husqvarna Chainsaw engine might start and then stop due to several reasons: the fuel type could be incorrect, a clogged air filter, or a clogged fuel filter. To resolve this, drain the fuel tank and fill it with the correct fuel. Also, clean or replace the air filter and replace the fuel filter.
V
velazquezchrisAug 8, 2025
What to do if my Husqvarna Chainsaw engine does not start?
- R
  Rebecca TorresAug 8, 2025
  If your Husqvarna Chainsaw engine doesn't start, several factors could be the cause. The starter pawls might be blocked, requiring adjustment or replacement. Incorrect fuel type could be the reason, so drain the fuel tank and refill with the correct fuel. The fuel tank might be filled with chain oil; if you haven't tried starting it, drain the tank. A dirty or wet spark plug can also prevent starting, so ensure it's dry and clean. Also, check that the spark plug is not loose and tighten it. If the engine is flooded due to repeated starts with full choke after ignition, remove and clean the spark plug, put the product on its side with the spark plug hole away from you, pull the starter rope handle 6-8 times, assemble the spark plug and start the product.
A
adam45Aug 14, 2025
What to do if Husqvarna Saw engine starts but stops?
- M
  michelegonzalezAug 15, 2025
  If your Husqvarna Saw starts but then stops, it could be due to several reasons. One common cause is using the incorrect fuel type, so drain the fuel tank and refill with the correct fuel. Another possibility is a clogged air filter, which requires cleaning or replacement. Also, a clogged fuel filter can cause this issue, so replace the fuel filter.
A
Alicia JonesAug 20, 2025
How to fix Husqvarna Saw when the engine does not start because of blocked starter pawls?
- B
  Brenda MortonAug 20, 2025
  If the engine of your Husqvarna Saw does not start, the starter pawls might be blocked. Try to adjust or replace the starter pawls. Also, try to clean around the pawls.

Summary

General Safety Precautions for Chain Saw Use

Before using a new chain saw

Essential checks and actions before operating the chain saw for the first time.

Personal Protective Equipment Guide

Specifies necessary protective gear for safe chain saw operation.

Machine Safety Equipment Overview

Explains the function of built-in safety features on the chain saw.

Chain Brake and Front Hand Guard

Cutting Equipment for Kickback Reduction

Discusses how cutting attachments minimize kickback risks.

Chain Sharpening and Depth Gauge Adjustment

Procedures for maintaining chain sharpness and depth gauge.

Tensioning the Saw Chain

Instructions on how to properly tension the saw chain.

Lubricating Cutting Equipment

Checking Cutting Equipment Wear

Assembly of the Chain Saw

Fitting the Bar and Chain

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

Fuel Handling and Lubrication

Fuel and Oil Mixing Procedure

Chain Oil Selection and Use

Safe Fueling Procedures

Safe procedures for refueling the chain saw.

Fuel Safety Precautions

Precautions related to handling fuel and potential hazards.

Starting and Stopping the Chain Saw

Starting the Engine

Detailed steps for starting the chain saw engine.

Stopping the Engine

How to safely stop the chain saw engine.

Working Techniques for Chain Saw Operation

Pre-Operational Checks

General Working Instructions

Basic safety rules and operational guidance.

Basic Safety Rules for Operation

Fundamental safety principles for chain saw operation.

Basic Cutting Techniques

Core principles and methods for effective cutting.

Limbing Branches

Cutting Trunk into Logs

Tree Felling Technique

Comprehensive guide to safely felling trees.

Maintenance of the Chain Saw

Carburettor Adjustment Procedure

How to adjust the carburettor for optimal performance.

Servicing Safety Equipment

Procedures for inspecting and maintaining safety features.

Chain Brake and Front Hand Guard Checks

Checks for the chain brake and hand guard.

Throttle Trigger Lockout Verification

Chain Catcher Inspection

Starter Housing Maintenance

Air Filter Cleaning and Replacement

Spark Plug Checks and Replacement

Maintenance Schedule

A summary of routine maintenance tasks and intervals.

Technical Data for Husqvarna Chainsaws

Engine Specifications

Chain and Bar Specifications

Guide Bar and Saw Chain Combinations

Approved combinations of guide bars and saw chains.

Saw Chain Filing and File Gauges

Husqvarna 120 Specifications

General

Cylinder Displacement	38.2 cm³
Chain Pitch	3/8"
Sound Power Level	113 dB(A)
Bar Length	14 in
Weight	4.85 kg
Fuel Tank Volume	0.25 L (0.07 US gal)
Oil Tank Volume	0.15 liters
Chain Gauge	1.3 mm (0.05 in)