Husqvarna 455 Rancher II User Manual (English)

Other manuals for Husqvarna 455 Rancher II

Questions and Answers:

L
Lawrence SimmonsAug 15, 2025
Why is my Husqvarna 455 Rancher II difficult to start?
- A
  Arthur JohnsonAug 15, 2025
  If your Husqvarna Chainsaw is difficult to start, several factors could be at play. Start by checking the air filter and clean or replace it if it's blocked. Ensure the choke is functioning correctly; repair or replace it if necessary, and consider replacing the choke axle or valve if they are worn. Also, a blocked fuel filter requires cleaning or replacement, and a blocked fuel line needs inspection and clearing. Finally, inspect and free the piston ring if it's stuck, and clear any blockage in the impulse channel.
C
Christine RodgersAug 18, 2025
Why is the carburetor leaking fuel on my Husqvarna Chainsaw?
- M
  Michael KirkAug 18, 2025
  If your Husqvarna chainsaw's carburetor is leaking fuel, the issue might stem from a loose or faulty fuel pipe (tighten or replace the pipe), a hole in the membrane (replace the membrane), or a binding control system (inspect and fix the control system). Also, the control system might be set too high (adjust the control system), there might be a leak in the control system (inspect and repair the control system), or the cover on the carburetor pump side might be loose (tighten the cover).
Q
qcisnerosAug 21, 2025
How to fix uneven idling on my Husqvarna Chainsaw?
- A
  anita69Aug 21, 2025
  If your Husqvarna Chainsaw is idling unevenly, there are several potential causes: * A blocked fuel filter: Replace or clean it. * A blocked fuel line: Inspect and clear it. * A leaking inlet hose: Replace the hose. * Loose carburetor clamping screws: Tighten the screws. * A worn throttle valve shaft, throttle valve screw, or throttle valve: Replace the respective part. * A leaking control system: Inspect and repair it. * A worn control system center knob: Replace the knob. * A hole in the membrane: Replace the membrane. * A leaking control diaphragm/cover plate: Inspect and replace the diaphragm or plate. * A leaking crankcase: Inspect and repair the crankcase.
N
Nicholas JohnstonAug 25, 2025
What to do if my Husqvarna Chainsaw does not idle?
- S
  Sherry RiceAug 25, 2025
  If your Husqvarna Chainsaw is not idling, check the following: a leaking inlet hose (replace the hose), loose carburetor clamping screws (tighten the screws), or a loose or faulty fuel pipe (tighten or replace the fuel pipe). Also, check for a blocked fuel filter (replace or clean), a blocked fuel line (inspect and clear), or a blocked tank ventilator (clear the ventilator). Inspect and free an inert throttle valve shaft, and inspect and fix a binding throttle stay. Replace a defective throttle return spring, and straighten or replace a bent valve axle stop. Finally, replace a faulty diffuser jet.
R
Raven RoyAug 27, 2025
Why is my Husqvarna Chainsaw low on power?
- L
  Linda GuerreroAug 27, 2025
  If your Husqvarna chainsaw is low on power, consider these possible causes: a clogged tank vent (clear the venting), a blocked fuel filter (replace or clean the filter), or a leaking or blocked impulse channel (inspect and repair, or clear the channel). Also, check for a loose cover on the carburetor pump side (tighten the cover), a faulty pump diaphragm (replace the diaphragm), or a blocked air filter (clean or replace the filter). Additional possibilities include a binding, leaking, or incorrectly assembled control system (inspect and fix, inspect and repair, or disassemble and reassemble, respectively), a loose diaphragm rivet (tighten the rivet), a hole in the membrane (replace the membrane), or a leaking control diaphragm/cover plate (inspect and replace the diaphragm or cover plate).
A
Andrew AllenAug 30, 2025
What to do if my Husqvarna Chainsaw engine stops when releasing the throttle?
- B
  Brett HuntAug 30, 2025
  If the engine of your Husqvarna Chainsaw stops when releasing the throttle, it could be due to a faulty pump diaphragm (replace it), a control system set too high (adjust it), a binding control system (inspect and fix it), or a faulty diffuser jet (replace it).
W
wgonzalezSep 12, 2025
Why is my Husqvarna 455 Rancher II Chainsaw accelerating too rich?
- W
  wilsonjoeSep 12, 2025
  If your Husqvarna Chainsaw has too rich acceleration, it may be due to a blocked air filter (clean or replace the air filter), a faulty pump diaphragm (replace the pump diaphragm), or a faulty diffuser jet (replace the diffuser jet).

Husqvarna 455 Rancher II Specifications

General

Engine Displacement	55.5 cm³
Weight (excluding cutting equipment)	5.9 kg
Sound Pressure Level	104 dB(A)
Sound Power Level	114 dB(A)
Bar Length	13-20 inches
Oil Tank Volume	0.32 L
Chain Pitch	3/8"
Chain Gauge	0.050 inches

Summary

Key to Symbols

Symbols on the machine

Explains symbols displayed on the chainsaw for user safety and information.

Symbols in the operator's manual

Explains symbols used within the operator's manual for guidance and warnings.

Introduction

What Is What?

What is what on the chain saw?

Identifies and labels the various parts and components of the Husqvarna chainsaw.

General Safety Precautions

Before using a new chain saw

Essential checks and reading requirements before operating the chainsaw for the first time.

Personal protective equipment

Details the mandatory personal protective equipment (PPE) required for safe chainsaw operation.

Machine's safety equipment

Explains the function and importance of the chainsaw's built-in safety features.

Chain brake and front hand guard

Describes the operation and function of the chain brake and front hand guard for kickback protection.

Cutting equipment

Covers the selection, maintenance, and safety aspects of guide bars and saw chains.

Sharpening your chain and adjusting depth gauge setting

Instructions on proper chain sharpening and depth gauge adjustment for optimal performance.

Tensioning the chain

Guidance on correctly tensioning the saw chain to ensure safety and efficiency.

Assembly

Fitting the bar and chain

Step-by-step instructions for correctly fitting the guide bar and saw chain.

Fitting a spike bumper

Instructions for fitting a spike bumper to the chainsaw for improved stability.

Fuel Handling

Fuel

Information on the correct type of petrol and two-stroke oil mixture for the engine.

Fueling

Procedures and safety precautions for refuelling the chainsaw.

Fuel safety

Essential safety measures to prevent fire and explosion risks when handling fuel.

Starting and Stopping

Starting and stopping

Detailed steps for safely starting and stopping the chainsaw engine.

Cold engine

Specific procedure for starting a cold chainsaw engine.

Warm engine

Specific procedure for starting a warm chainsaw engine.

Working Techniques

Before use:

Pre-operation checks to ensure the chainsaw is safe and ready for use.

General working instructions

Fundamental safety rules and operational guidance for using the chainsaw.

How to avoid kickback

Explains kickback and provides techniques to prevent it.

Cutting

Techniques for cutting logs, emphasizing safety and avoiding kickback.

Tree felling technique

Overview of techniques for felling trees safely, with warnings for inexperienced users.

Maintenance

General

Defines the scope of user-performed maintenance and when to consult a service workshop.

Carburettor adjustment

Information on carburettor adjustment, including AutoTune functionality.

Checking, maintaining and servicing chain saw safety equipment

Guidance on inspecting and maintaining critical safety components of the chainsaw.

Adjustment of the oil pump

Details on adjusting the oil pump for optimal chain lubrication based on bar length.

Winter use

Special measures and considerations for operating the chainsaw in cold weather.

Maintenance schedule

A comprehensive schedule for daily, weekly, and monthly maintenance tasks.

Technical Data

Technical data

Provides detailed specifications for engine, fuel, noise, vibration, and chain/bar.

Guide bar and saw chain combinations

Lists approved combinations of guide bars and saw chains for specific models.

EC-declaration of conformity

Declaration of conformity with relevant European directives for machinery and emissions.

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Husqvarna 455 Rancher II User Manual

Table of Contents

Other manuals for Husqvarna 455 Rancher II

Questions and Answers:

Husqvarna 455 Rancher II Specifications

Summary

Key to Symbols

Symbols on the machine

Symbols in the operator's manual

Introduction

What Is What?

What is what on the chain saw?

General Safety Precautions

Before using a new chain saw

Personal protective equipment

Machine's safety equipment

Chain brake and front hand guard

Cutting equipment

Sharpening your chain and adjusting depth gauge setting

Tensioning the chain

Assembly

Fitting the bar and chain

Fitting a spike bumper

Fuel Handling

Fuel

Fueling

Fuel safety

Starting and Stopping

Starting and stopping

Cold engine

Warm engine

Working Techniques

Before use:

General working instructions

How to avoid kickback

Cutting

Tree felling technique

Maintenance

General

Carburettor adjustment

Checking, maintaining and servicing chain saw safety equipment

Adjustment of the oil pump

Winter use

Maintenance schedule

Technical Data

Technical data

Guide bar and saw chain combinations

EC-declaration of conformity

Related product manuals