J-HANDLE SET - Garden tool JONSERED - Free user manual and instructions

Product Type	J-Handle Kit for Brushcutter
Brand	JONSERED
Model	J-HANDLE SET
Usage	Brush clearing and weeding
Kit contents	J-handle, weed blade guard, weed blade, sliding bolt
Compatible blades	Weed blade/knife (Ø 255 mm, 4 or 8 teeth), Polytrim plastic knives Ø 300 mm
Recommended guard	Cutting tool guard ref. 503 74 40-03 or 503 74 50-03
Center hole diameter of blades	20 mm
Axle thread	M10
Blade nut tightening torque	35-50 Nm
Estimated weight (kit)	Approximately 0.5 kg
Dimensions (handle)	Approximately 30 cm long, 25 cm wide
Handle material	Reinforced plastic
Transport position	Foldable along the tube
Prohibited cutting equipment	Saw blade
Safety instructions	Use only with approved guard, wear goggles, keep people away
Maintenance	Regular sharpening of teeth, inspection for cracks and wear
Replacement of parts	Replace blade, flange, nut and guard if damaged
Repairability	Spare parts available: blade, flange, guard, nut
Manual included	Yes, 76 pages in multiple languages

Frequently Asked Questions - J-HANDLE SET JONSERED

How to mount the J-handle on my brushcutter?

First remove the existing lever on the bracket. Place the handle as shown in the manual, mount the brackets and tighten slightly. Adjust the position for optimal comfort, then tighten the lever. Ensure the handle is securely locked.

What types of blades can be used with the J-handle?

You can use weed blades/knives (e.g., Grass 255-4, Grass 255-8, Multi 255-3) and Polytrim plastic knives Ø 300 mm. Never use a saw blade or standard brushcutter blade.

How to maintain the weed blade?

Sharpen the teeth with a flat single-cut file while maintaining blade balance. Regularly inspect for cracks, especially around the teeth and center hole. Replace the blade if worn or damaged.

What is the mandatory guard for using the J-handle?

The approved cutting tool guard must be installed. For blades, use reference 503 74 40-03; for cutting heads, reference 503 74 50-03. Never use the tool without a guard.

How to transport the machine with the J-handle?

Loosen the handle, turn it clockwise to fold it along the tube, then retighten the locking handle. Always use the transport guard provided with the cutting tool.

What is the basic technique for efficient brush clearing?

Always work at full throttle. Mow the grass with a swinging motion from right to left, using the left side of the blade (between 8 and 12 o'clock). Advance after each backward motion. Keep the guard cup on the ground to protect the blade.

What to do if debris gets stuck between the blade and the guard?

Stop the engine immediately before cleaning. Remove any stuck stones or branches. Never attempt to clear the cutting equipment while it is running.

What is the tightening torque for the blade nut?

The tightening torque is 35 to 50 Nm (3.5 to 5 kgm). Use the supplied socket wrench. The nut has a left-hand thread: tighten by turning in the opposite direction of blade rotation.

Can I use a cutting head with the J-handle?

Yes, approved cutting heads such as Tap-N-Go Pro, Auto 32 and Trimmy HII are compatible. Make sure to use the appropriate guard (ref. 503 74 50-03).

How to check the condition of the support flange?

Visually inspect the flange for cracks, especially after overtightening. If cracks appear, replace it immediately. The support flange secures the blade.

USER MANUAL J-HANDLE SET JONSERED

Operator's Manual J-handle set

The J-handle set contains the following parts:

1 J-handle
1 Grass blade guard
1 Grass blade
1 Support cup

NOTE! The trimmer guard should be replaced with the supplied grass blade guard if the machine is fitted with a grass blade.

WARNING!

Saw blades must not be fitted on a machine equipped with a J-handle.

Read through the Operator's Manual carefully and understand the content before using the machine.

These instructions supplement the instructions that were included with the machine. For other procedures, please refer to the operating instructions for the machine.

List of contents

CONTENTS

Components in the J-handle set 1
List of contents 1

SAFETY INSTRUCTIONS

Cutting equipment 2
Basic clearing techniques 3

ASSEMBLY

Assembling the J-handle 4
Transport position, J-handle 4
Assembly of the blade and trimmer head. 4
Assembling the blade guard and grass blade 4

START AND STOP

Control before starting. 5

TECHNICAL DATA

J-handle set 5

Cutting equipment

This section describes how through correct maintenance and through using the right type of cutting equipment you can:

• Reduce the machine's tendency to kickback
• Obtain maximum cutting capacity.
• Increase the service life of the cutting equipment.

The three basic rules:

1)Only use the cutting and guard equipment we recommend! See chapter "Technical data".
2) Keep the blade's teeth well and correctly sharpened! Follow our instructions and use the recommended filing gauge. An incorrectly sharpened or damaged blade increases the risk of an accident.
3) Check the cutting equipment with regard to damage and crack formation. Damaged cutting equipment should always be replaced.

IMPORTANT INFORMATION

The section describes how through correct maintenance and through using the right type of cutting equipment you can reduce the machine's tendency to kickback, obtain maximum clearing capacity and increase the service life of the cutting equipment.

• Only use the cutting and guard equipment we recommend! See chapter "Technical data".
  Refer to the instructions for the cutting equipment for the correct winding of cord and for the selection of the right cord diameter.
• Keep the blade's teeth well and correctly sharpened! Follow our recommendations. Also refer to the instructions on the blade packaging.

WARNING!

Incorrect cutting equipment or an incorrectly sharpened blade increases the risk of kickback.

Filing the grass blade

• See the cutting equipment's packaging for correct filing instructions.
• The blades are sharpened using a single cut flat file.
• Sharpen all edges equally to maintain the balance of the blade.

Basic clearing techniques

Always carry out clearing and trimming at full throttle.
- Always drop to idling speed after each working operation. Longer periods running at full throttle without loading the engine (that is without resistance, which the engine feels from the cutting equipment when trimming) can lead to serious engine damage.

Designations

• Brush cutting is a general term for clearing grass. Grass blades are used for this purpose.
• Grass trimming is a general term for light clearing, e.g. around edges or around trees. A trimmer head or plastic blade is used.

Brush cutting using a grass blade

• A blade is used for all types of high or thick grass.
• The grass is cut down with a sideways, swinging movement, where the movement from right-to-left is the clearing stroke and the movement from left-to-right is the return stroke. Let the blade work on the left-hand side (between 8 and 12 o'clock).
• If the blade is angled to the left when clearing the grass will collect in a line, which makes collection easier, e.g. when raking.

• Try to work rhythmically. Stand firmly with your feet apart. Move forward after the return stroke and stand firmly again.
• Let the support cup rest lightly against the ground. It is used to protect the blade from hitting the ground.
• Reduce the risk of material wrapping around the blade by following these instructions:

a) Always work at full throttle.
b) Avoid the previously cut material during the return stroke.

• Stop the engine, loosen the harness and place the machine on the ground before you start to collect the cut material.

WARNING!

Neither the user of the tool or anyone else may attempt to remove the cut material while the engine is running or with the blade rotating as this can result in serious injury.

Stop the engine and blade before you remove material that has wound around the blade as otherwise there is a risk of injury.

WARNING!

Warning for thrown objects. Always wear protective glasses. Never lean over the guard. Stones, rubbish, etc. can be thrown up into the eyes causing blindness or serious injury. Keep unauthorised persons at a distance. Children, animals, onlookers and helpers should be kept outside the safety zone of 15m . Stop the machine immediately if anyone approaches.

Assembling the J-handle

WARNING

Only grass blades or trimmer heads/ plastic blades may be used when the Jhandle is fitted. Clearing blades must never be used with the J-handle.

• Loosen the knob from the handle bracket.
• Position the handle as shown. Fit the bracket components and tighten the handle lightly.
• Finely adjust the J-handle to give a comfortable working stance. Tighten the knob.

Transport position, J-handle

• The handlebars can easily be turned to fit along the shaft for easy transportation and storage.
• Loosen the knob. Turn the J-handle clockwise.
  Thereafter fold the handlebars around the shaft. Tighten the handle.
• Attach the transport guard.

Assembly of the blade and trimmer head

It is extremely important that the disc drive's/support flange's guide engages correctly in the cutting equipment's centre hole when assembling the cutting equipment. Cutting equipment assembled incorrectly can result in serious and/or fatal personal injury.

WARNING!

Do not attach any blade to the unit without proper installation of all required parts. Failure to use the proper parts can cause the blade to fly off and seriously injure the operator and/or bystanders.

Under no circumstances may the cutting equipment be used without an approved guard fitted. See the chapter "Technical data". If the wrong guard or a defective guard is fitted this can cause serious personal injury.

Assembling the blade guard and grass blade

• The guard (A) is fitted using 4 screws (L) and the support plate (M) as set out in the diagram. NOTE! Use the recommended blade guard.
• Fit the drive disc (B) on the output axle.
• Turn the blade axle until one of the holes in the drive disc aligns with the hole in the gear housing.
• Insert the locking pin (C) in the hole so that the axle is locked.
• Place the blade (D), support cup (E) and support flange (F) on the output axle.
• Fit the nut (G). The tightening torque of the nut is 35 - 50Nm (3,5 - 5kpm) . Use the socket spanner in the tool kit. Hold the handle of the spanner as close to the blade guard as possible. The nut is tightened when the spanner is turned against the direction of rotation (left-hand thread).

Control before starting

For reasons of safety follow these recommendations!

• Check the blade to ensure that no cracks have formed at the bottom of the teeth or by the centre hole. The most common reason why cracks are formed is that sharp corners have been formed at the bottom of the teeth while sharpening or that the blade has been used with dull teeth. Discard a blade if cracks are found.
• Check that the support flange is not cracked due to fatigue or due to being tightened too much. Discard the support flange if it is cracked.
• Ensure the locking nut has not lost its captive force. The nut lock should have a locking force of at least 1.5 Nm. The tightening torque of the locking nut should be 35 - 50Nm
• Check that the guard is not damaged or cracked. Replace the guard if it is exposed to impact or is cracked.
• Check that the trimmer head and spray guard are not damaged or cracked. Replace the trimmer head or spray guard if they are exposed to impact or are cracked.
• Never use the machine without a guard or spray guard nor with a defective guard.

TECHNICAL DATA

Approved accessories J-handle

Centre hole in blades 20mm Threaded blade axle M10

Grass blade

Plastic knives

Trimmer head

Support cup

Type

Grass 255-4 (Ø 255 4-teeth)

Grass 255-8 (Ø 255 8-teeth)

Multi 255-3 (Ø 255 3-teeth)

Polytrim 300

Tap-N-Go Pro

Auto 32

Trimmy HII

Fixed

Cutting attachment guard Art No.

503 74 40-03

5037440-03

5037440-03

5037450-03

5037450-03

5037450-03

5037450-03

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