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Jonsered GR41 User Manual

Jonsered GR41
40 pages
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GR41 GR50 RS44 RS52
Oper
ator
s manual
Please read the oper
ator’s manual carefully and
make sure you understand the instructions
before using the machine.
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Jonsered GR41 Specifications

General IconGeneral
Power Output1.5 kW
Weight7.9 kg
Engine Type2-stroke
Cutting Width45 cm
Shaft TypeStraight shaft

Summary

Operator's Manual

Key to Symbols

Symbols

Explains various symbols and decals used on the machine for safety and certification.

Introduction

What is What?

Parts Identification (GR41/GR50/RS44)

Identifies and labels the various components of the GR41/GR50/RS44 clearing saw.

Parts Identification (RS52)

Identifies and labels the various components of the RS52 clearing saw.

General Safety Precautions

Important Safety Information

Highlights critical safety advice and general warnings for operating the machine.

Personal Protective Equipment

Details essential protective gear like helmets, hearing and eye protection, and gloves.

Helmet Safety

Advises wearing a helmet when clearing trees taller than 2 meters.

Hearing Protection

Recommends wearing hearing protection for adequate noise reduction.

Eye Protection

Mandates approved eye protection, including goggles and visors.

Gloves

Suggests wearing gloves when fitting cutting attachments.

Boots

Recommends wearing sturdy boots with steel toe-caps and non-slip soles.

Clothing

Advises wearing strong fabric clothing, long pants, and securing hair.

First Aid Kit

Emphasizes the importance of having a first aid kit nearby.

Machine Safety Equipment

Describes the machine's built-in safety features and their importance.

Throttle Lockout Function

Explains the throttle lockout mechanism to prevent accidental throttle operation.

Stop Switch Operation

Details how to use the stop switch to safely turn off the engine.

Cutting Attachment Guard

Highlights the importance of the cutting attachment guard for operator safety.

Vibration Damping System

Describes the system designed to minimize vibration during operation.

Quick Release Mechanism

Explains the function of the quick release for emergency situations.

Muffler Function and Safety

Details the muffler's role in noise reduction and exhaust management.

Locking Nut Safety

Provides instructions and warnings for using and tightening the locking nut.

Locking Screw

Ensures the locking screw is tightened securely for support cups.

Cutting Equipment Usage

Guides on choosing and maintaining cutting equipment for performance and safety.

General Cutting Rules

Covers essential rules for using cutting attachments and guards safely.

Sharpening Grass Cutters/Blades

Instructions on how to properly sharpen grass cutters and blades.

Saw Blade Sharpening

Provides detailed instructions on how to sharpen saw blades correctly.

Trimmer Head Usage

Offers important advice on using trimmer heads and trimmer cord correctly.

Assembly

Handlebar & Throttle Assembly (GR41/GR50)

Step-by-step guide for assembling the handlebar and throttle for GR41/GR50 models.

Handlebar & Throttle Assembly (RS44/RS52)

Step-by-step guide for assembling the handlebar and throttle for RS44/RS52 models.

Handlebar Transport Position

Instructions on how to adjust the handlebar for transport and storage.

Cutting Equipment Assembly

Guidance on assembling cutting attachments, including safety warnings.

Fitting Blade Guard & Grass Cutter

Instructions for fitting the blade guard, grass blade, and grass cutter.

Fitting Blade Guard & Saw Blade

Procedure for attaching the blade guard and saw blade.

Fitting Trimmer Guard & Trimmy SII Head

Steps for attaching the trimmer guard and Trimmy SII trimmer head.

Fitting Other Guards & Attachments

Instructions for fitting various other guards and cutting attachments.

Harness & Clearing Saw Adjustment

Guide to adjusting the harness and attaching the clearing saw for optimal use.

Standard Harness Operation

Details on safety release, load spreading, and correct height for standard harness.

Vector Harness Operation

Instructions for vector harness safety release and adjustment.

Harness Adjustment Details

Step-by-step guide for adjusting hip, chest, and shoulder straps.

Achieving Correct Balance

Explains how to balance the machine for forestry clearing and grass clearing.

Fuel Handling

Fuel Safety Precautions

Covers critical safety measures for handling fuel, transport, and storage.

Petrol Specifications

Details recommended petrol octane rating and usage with catalytic converters.

Two-Stroke Oil Recommendations

Specifies recommended types of two-stroke oil and mixing ratios.

Fuel Mixing Procedure

Step-by-step guide for mixing petrol and two-stroke oil correctly.

Fuelling Safety

Safety instructions for refuelling the machine, including fire prevention.

Starting and Stopping

Pre-Start Checks

Essential checks to perform before starting the machine for safe operation.

Cold Engine Starting

Procedure for starting the engine when it is cold.

Warm Engine Starting

Procedure for starting the engine when it is already warm.

Engine Starting Procedure

Detailed steps for starting the engine using the starter cord.

Engine Stopping Procedure

Instructions on how to safely stop the engine.

Working Techniques

General Working Instructions

Basic safety precautions and advice for working with clearing saws and trimmers.

Basic Safety Rules

Covers essential rules like checking surroundings, removing debris, and safe movement.

Clearing Best Practices

Principles for effective clearing: equipment, adjustment, safety, and organization.

Working Methods Overview

General advice on working methods, blade thrust, and clearing area preparation.

Forestry Clearing with Saw Blade

Detailed techniques for felling trees and cutting stems using a saw blade.

Brush Cutting with Saw Blade

Techniques for cutting brush and hardwood stems with a saw blade.

Grass Clearing with Grass Blade

Instructions for clearing grass and weeds using a grass blade.

Grass Trimming with Trimmer Head

Techniques for trimming grass, including trimming, clearing, and sweeping.

Maintenance

Carburettor Adjustment

Explains carburettor function and provides guidance on adjustment procedures.

Basic Carburettor Setting

Details factory settings and initial adjustments for the carburettor.

Idle Speed (T) Adjustment

Procedure for adjusting the idle speed screw (T) for correct operation.

High Speed Jet (H) Adjustment (GR41/GR50/RS44)

Guide to adjusting the high-speed jet (H) for GR41/GR50/RS44 models.

High Speed Jet (H) Adjustment (RS52)

Guide to adjusting the high-speed jet (H) for the RS52 model.

Correctly Adjusted Carburettor

Describes the signs of a correctly adjusted carburettor.

Muffler Maintenance

Instructions for checking, cleaning, and maintaining the muffler, including spark arrestor mesh.

Cooling System Maintenance

Details on cleaning the cooling system components to prevent overheating.

Air Filter Maintenance

Guidance on cleaning and replacing the air filter to ensure optimal engine performance.

Bevel Gear Lubrication

Information on checking and maintaining the bevel gear grease.

Spark Plug Maintenance

Guidance on spark plug condition, cleaning, gap adjustment, and replacement.

Maintenance Schedule

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

Technical Data

Technical Specifications (GR41/GR50)

Detailed technical specifications for GR41 and GR50 models, including engine, noise, and vibration.

Noise Emissions Data

Presents measured sound power and sound levels for the machine.

Vibration Levels Data

Provides measured vibration levels at the handles for different operating conditions.

Technical Specifications (RS44/RS52)

Detailed technical specifications for RS44 and RS52 models, including engine, noise, and vibration.

Approved Accessories (GR41/GR50)

Lists approved cutting attachments and corresponding guards for GR41/GR50 models.

Approved Accessories (RS44/RS52)

Lists approved cutting attachments and corresponding guards for RS44/RS52 models.

EC Declaration of Conformity

Formal declaration of compliance with relevant EU directives for the clearing saws.

Cutting Attachments

Poly Trim Installation

Step-by-step instructions for installing and using the Poly Trim cutting head.

Trimmy SII Installation

Detailed instructions for winding and installing the Trimmy SII trimmer head.

Trimmy SII Usage

Further steps for using and maintaining the Trimmy SII trimmer head.

Auto 55 Installation and Use

Instructions for installing and using the Auto 55 cutting head.

Tap n'Go 45 Installation

Step-by-step guide for installing the Tap n'Go 45 trimmer head.

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