Why does my Husqvarna 445 Chainsaw engine start but stop again?
Your Husqvarna Chainsaw engine might start and then stop due to several reasons. It could be due to incorrect fuel type, in which case you should drain the fuel tank and refill it with the correct fuel. Alternatively, try cleaning or replacing the air filter, or replacing the fuel filter.
What to do if my Husqvarna 445 engine does not start?
If your Husqvarna Chainsaw engine doesn't start, several factors could be the cause. The starter pawls might be blocked, requiring adjustment or replacement. Make sure that you use the correct fuel type. If the fuel tank has chain oil, drain it, or contact your servicing dealer if you already tried to start the chainsaw. The spark plug might be dirty or wet, so ensure it is clean and dry. Also, verify that the electrode gap is correct and that the spark plug is tightened correctly.
General| Cylinder Displacement | 45.7 cm³ |
|---|---|
| Weight | 4.9 kg |
| Weight (excl. cutting equipment) | 4.9 kg |
| Oil Tank Volume | 0.26 l |
| Chain Pitch | 0.325" |
| Chain Gauge | 0.058" |
| Sound Power Level | 114 dB(A) |
| Vibration Level (left/right handle) | 3.1/4.9 m/s² |
| Fuel Tank Volume | 0.45 l |
| Bar Length | 40 cm (16") |
Identifies symbols located directly on the chainsaw for operational guidance.
Explains symbols used within the manual for clarity and understanding.
A welcoming message to the customer from the manufacturer regarding the product.
A detailed diagram and list identifying all components of the chain saw.
Essential checks to perform before starting the chain saw to ensure safe operation.
Important warnings about machine modification, misuse, and potential hazards like exhaust and ignition.
Details the mandatory protective gear required for safe operation, including head, ear, eye, and hand protection.
Explains the integrated safety mechanisms of the chain saw, such as the chain brake.
Describes how the chain brake works, its manual and automatic activation, and its purpose.
Guidance on identifying kickback causes and employing techniques to prevent it.
Explains the function of the throttle lockout and the role of the chain catcher in safety.
Details the protective functions of the right hand guard and the vibration damping system.
Important safety information and precautions related to the chainsaw's muffler and potential fire hazards.
Guidance on choosing and maintaining cutting equipment for safety and performance.
Information on chainsaw components and design features that help minimize kickback risk.
Definitions of key terms used to describe chainsaw bars and chains.
Instructions for sharpening and maintaining the saw chain to ensure safe and efficient cutting.
Step-by-step instructions on how to properly sharpen the cutting teeth of the chain.
Procedures for adjusting the depth gauge to optimize cutting performance and reduce kickback risk.
Essential steps for correctly tensioning the chainsaw chain to prevent accidents and ensure proper function.
Detailed instructions on how to tension the chain using the tensioning screw and knob for different models.
The importance and methods for lubricating the cutting equipment for longevity and safety.
How to check if the chainsaw's chain is receiving adequate lubrication during operation.
Instructions for checking the drive sprocket and lubricating the needle bearing.
Daily checks for wear and damage on the chain, bar, and drive sprocket to ensure safety.
Step-by-step instructions for correctly mounting the bar and chain onto the chainsaw.
Guidance on fitting a spike bumper, often requiring assistance from a service agent.
Details correct petrol and two-stroke oil mixture ratios, types, and handling precautions.
Guidance on choosing and using the appropriate chain oil for lubrication and maintenance.
Critical safety measures to prevent fire and explosion risks during the refuelling process.
Guidelines for safely storing and transporting fuel and the chainsaw.
Step-by-step instructions for starting the chainsaw, covering cold and warm engine conditions.
Instructions on how to safely switch off the chainsaw engine using the stop switch.
A checklist of essential safety and operational checks to perform before commencing work.
Basic safety principles and practices for operating a chain saw effectively and minimizing risks.
Guidelines for safe chainsaw operation, including proper grip, stance, and cutting speed.
Explains kickback causes and techniques for safe cutting, including push and pull strokes.
Covers fundamental techniques for safely cutting various types of wood and branches.
Safe techniques for removing branches and cutting logs, addressing risks of splitting or jamming.
Factors influencing tree felling direction and safety preparations for the operation.
Describes the three-cut method for safely felling trees and controlling the fall direction.
Explains the critical role of the felling hinge in controlling the direction of a falling tree.
Safe procedures for releasing trapped trees and cutting limbs under tension.
Comprehensive guide on understanding kickback and implementing preventive measures.
Explains the kickback phenomenon, its cause, and how it affects the chainsaw's movement.
Specific warnings and techniques to avoid kickback during limbing operations, emphasizing caution.
Procedures for adjusting the carburettor for optimal performance and reduced emissions.
Instructions for inspecting and maintaining critical safety features like the chain brake and hand guard.
Procedures for testing the inertia brake release, throttle lockout, and brake trigger function.
Inspections for damage or wear on the chain catcher, right hand guard, and vibration damping units.
Maintenance requirements for the muffler, including cleaning the spark arrestor mesh to prevent overheating.
Instructions for replacing the starter cord and tensioning the recoil spring.
Procedures for cleaning and replacing the air filter to maintain engine performance and prevent wear.
Maintenance of the spark plug, bar tip sprocket lubrication, and needle bearing lubrication.
Importance and method of cleaning the cooling system to prevent engine overheating and damage.
Maintenance of the 'Air Injection' system, including cleaning air intakes and fins.
Precautions and adjustments for operating the chainsaw in cold weather and snowy conditions.
A detailed schedule outlining daily, weekly, and monthly maintenance tasks for the chainsaw.
Technical details on the engine, ignition system, spark plug, and carburettor.
Data on fuel tank capacity, oil pump capacity, weight, and noise/vibration levels.
Specifications related to the bar and chain, including length, pitch, and drive link thickness.
Lists the CE-approved combinations of bars and chains for different chainsaw models.
Information and tools necessary for sharpening saw chains and setting depth gauges correctly.
Manufacturer's declaration confirming compliance with relevant European Union directives.
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