Jonsered GR41 Operator's Manual
Jonsered trimmer
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- Operator's manual (40 pages) ,
- Operator's manual (36 pages) ,
- Operator's manual (36 pages)
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Summary of Contents for Jonsered GR41
- Page 1 Oper ator ′ s manual Please read the oper ator’s manual carefully and make sure you understand the instructions before using the machine. GR41 GR50 RS44 RS52...
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Page 2: Key To Symbols
KEY TO SYMBOLS Symbols Noise emission to the environment according to the European Community’s WARNING! Clearing saws, brushcutters Directive. The machine’s emission is and trimmers can be dangerous! Careless specified in chapter Technical data and on or incorrect use can result in serious or label. -
Page 3: Table Of Contents
Dear Customer, ............WARNING! Under no circumstances may the WHAT IS WHAT? design of the machine be modified without What is what on the clearing saw? (GR41/GR50/RS44) the permission of the manufacturer. Always WHAT IS WHAT? use genuine accessories. Non-authorized modifications and/or accessories can result... -
Page 4: Introduction
If you will sell this machine, make sure that the buyer will get the operator′s manual. Good luck on using your Jonsered machine! Jonsered has a policy of continuous product development and therefore reserves the right to modify the design and appearance of products without prior notice. -
Page 5: What Is What
WHAT IS WHAT? What is what on the clearing saw? (GR41/GR50/RS44) 1 Blade 15 Handle adjustment 2 Grease filler cap, bevel gear 16 Harness 3 Bevel gear 17 Locking nut 4 Cutting attachment guard 18 Support flange 5 Shaft 19 Support cup... -
Page 6: What Is What
WHAT IS WHAT? What is what on the clearing saw? (RS52) 1 Blade 15 Fuel tank 2 Grease filler cap, bevel gear 16 Socket spanner 3 Bevel gear 17 Handle adjustment 4 Cutting attachment guard 18 Locking nut 5 Shaft 19 Support flange 6 Handlebar 20 Drive disc... -
Page 7: General Safety Precautions
GENERAL SAFETY PRECAUTIONS Important WARNING! Listen out for warning signals or shouts when you are wearing hearing protection. Always remove your hearing IMPORTANT! protection as soon as the engine stops. The machine is only designed for trimming grass, grass HELMET clearing and/or forestry clearing. -
Page 8: Machine's Safety Equipment
GENERAL SAFETY PRECAUTIONS Machine′ ′ ′ ′ s safety equipment Press the throttle lockout and make sure it returns to its original position when you release it. This section describes the machine′s safety equipment, its purpose, and how checks and maintenance should be carried out to ensure that it operates correctly. - Page 9 GENERAL SAFETY PRECAUTIONS Cutting attachment guard Regularly check the vibration damping units for cracks or deformation. Check that the vibration damping element is undamaged and securely attached. WARNING! Overexposure to vibration can This guard is intended to prevent loose objects from being lead to circulatory damage or nerve damage thrown towards the operator.
- Page 10 GENERAL SAFETY PRECAUTIONS Locking nut For mufflers it is very important that you follow the instructions on checking, maintaining and servicing your machine. See instructions under the heading Checking, maintaining and servicing the machine’s safety equipment. Never use a machine that has a faulty muffler. A locking nut is used to secure some types of cutting attachment.
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Page 11: Cutting Equipment
GENERAL SAFETY PRECAUTIONS Cutting equipment General rules This section describes how to choose and maintain your cutting equipment in order to: Only use cutting attachments with the guards we • Reduce the risk of blade thrust. recommend! See the chapter on Technical data. •... -
Page 12: Sharpening The Saw Blade
GENERAL SAFETY PRECAUTIONS Sharpening the saw blade Trimmer head IMPORTANT! Always ensure the trimmer cord is wound tightly and evenly • See the cutting attachment packaging for correct around the drum, otherwise the machine will generate sharpening instructions. harmful vibration. A correctly sharpened blade is essential for working efficiently •... -
Page 13: Assembly
ASSEMBLY Assembling the handlebar and Assembling the handlebar and throttle (GR41/GR50) throttle (RS44/RS52) • Remove the screw at the rear of the throttle handle. • Unscrew the knob from the handlebar mounting. • Slide the throttle handle onto the right side of the •... -
Page 14: Assembling The Cutting Equipment
ASSEMBLY Assembling the cutting equipment • Fit the support flange (F) on the output shaft. Make sure that the blade is centered by fitting it to the guide on the support flange. WARNING! • Screw the support cup (E) onto the output shaft threads (CAUTION! Left-hand thread). -
Page 15: Fitting The Trimmer Guard And Trimmer Head Trimmy Sii
ASSEMBLY guard as possible. To tighten the nut, turn the spanner in • Tighten the trimmer head to a torque of 35-50 Nm (3.5-5 the opposite direction to the direction of rotation (Caution! kpm). left-hand thread). • To dismantle, follow the instructions in the reverse order. When loosening and tightening the saw blade nut, there is a Fitting other guards and cutting risk of injury from the teeth of the saw blade. -
Page 16: Adjusting The Harness And Clearing Saw
ASSEMBLY Adjusting the harness and clearing 2 Grass clearing The machine should be supported in a harness when grass clearing so that the cutting equipment is parallel to the ground. WARNING! When using a clearing saw it must always be hooked securely to the harness. - Page 17 ASSEMBLY 4 Adjust the height of the suspension hook as described in the instructions for the standard harness. (Forestry clearing) 5 If you need to lower the suspension hook, for trimming for example, move the suspension strap (A) to the lower mounting point on the backplate.
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Page 18: Fuel Handling
• The transport guard must always be fitted to the cutting • For best results and performance use JONSERED two- attachment when the machine is being transported or in stroke engine oil, which is specially formulated for our air- storage. -
Page 19: Fuelling
FUEL HANDLING Mixing Fuelling • Always mix the petrol and oil in a clean container intended for fuel. • Always start by filling half the amount of the petrol to be used. Then add the entire amount of oil. Mix (shake) the fuel mixture. -
Page 20: Starting And Stopping
STARTING AND STOPPING Check before starting Starting and stopping • Check the blade to ensure that no cracks have formed at the bottom of the teeth or by the centre hole. The most WARNING! The complete clutch cover and common reason why cracks are formed is that sharp shaft must be fitted before the machine is corners have been formed at the bottom of the teeth while started, otherwise the clutch can come loose... - Page 21 STARTING AND STOPPING Starting WARNING! When the engine is started with the choke in either the choke or start throttle positions the cutting attachment will start to rotate immediately. Hold the body of the machine on the ground using your left hand (CAUTION! Not with your foot!).
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Page 22: Working Techniques
WORKING TECHNIQUES General working instructions 6 Keep a good balance and a firm foothold. 7 Always hold the machine with both hands. Hold the machine on the right side of your body. IMPORTANT! This section describes the basic safety precautions for working with clearing saws and trimmers. - Page 23 WORKING TECHNIQUES • You should plan the strip so that you avoid going over WARNING! Sometimes branches or grass ditches or other obstacles on the ground. You should also get caught between the guard and cutting orient the strip to take advantage of wind conditions, so attachment.
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Page 24: Grass Clearing Using A Grass Blade
WORKING TECHNIQUES • To fell a tree forwards, the bottom of the tree should be and cut from the centre of the group. If it is still difficult to pulled backwards. Pull the blade backwards with a quick, gain access, cut the stems high up and let them fall. This firm movement. -
Page 25: Grass Trimming With A Trimmer Head
WORKING TECHNIQUES Grass trimming with a trimmer head Sweeping • The fan effect of the rotating cord can be used for quick and easy clearing up. Hold the cord parallel to and above the area to be swept and move the tool to and fro. Trimming •... -
Page 26: Maintenance
The T-screw regulates the throttle setting at idle speed. If the T-screw is turned clockwise this gives a higher idle speed; turning it anti-clockwise gives a lower idle speed. Your Jonsered product has been designed and manufactured to specifications that reduce harmful exhaust fumes. The Basic setting engine will be run in after it has used 8-10 tanks of fuel. - Page 27 H-needle (anti-clockwise) a few tenths of a turn instead. High speed jet H (GR41, GR50, RS44) The high speed jet H affects the engine power, speed, temperature and fuel consumption. If the high speed jet H is set too lean (screwed in too far) the engine speed will be too high and cause engine damage.
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Page 28: Muffler
A blocked mesh will cause the machine to The air filter must be regularly cleaned to remove dust and dirt overheat and result in damage to the cylinder and piston. in order to avoid: GR41/50 RS44 RS52 • Carburettor malfunctions •... -
Page 29: Bevel Gear
However, before using the machine you should check that the bevel gear is filled 3/4 full with grease. Use JONSERED special grease. The grease in the bevel gear does not normally need to be changed except if repairs are carried out. -
Page 30: Maintenance Schedule
MAINTENANCE Maintenance schedule The following is a list of the maintenance that must be performed on the machine. Most of the items are described in the Maintenance section. The user must only carry out the maintenance and service work described in this Operator’s Manual. More extensive work must be carried out by an authorised service workshop. -
Page 31: Technical Data
TECHNICAL DATA Technical data Technical data GR41 GR50 Engine Cylinder displacement, cm 40,2 48,7 Cylinder bore, mm 40,0 44,0 Stroke, mm Idle speed, rpm 2700 2700 Recommended max. speed, rpm 13500 13500 Speed of output shaft, rpm 10500 10500 Max. engine output, acc. to ISO 8893... - Page 32 TECHNICAL DATA Technical data RS44 RS52 Engine Cylinder displacement, cm 44,3 50,8 Cylinder bore, mm 42,0 Stroke, mm Idle speed, rpm 2700 2700 Recommended max. speed, rpm 13500 13500 Speed of output shaft, rpm 10500 10500 Max. engine output, acc. to ISO 8893 2,0/9000 2,4/9600 Catalytic converter muffler...
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Page 33: Ec-Declaration Of Conformity
(Applies to Europe only) We, Jonsered, SE-561 82 Huskvarna, Sweden, tel: +46-36-146500, declare that the clearing saws Jonsered GR41, GR50, RS44 and RS52 with serial numbers dating from 2002 onwards (the year is clearly stated on the rating plate, followed by the serial number), comply with the requirements of the COUNCIL’S DIRECTIVE:... - Page 34 Trimmy SII 7,0 m 12 cm 5" ~ 3,5 m ~ 15 cm "Clic" 35-50 NM...
- Page 36 Auto 55 >1,1 Kw <1,1 Kw 2,7 mm - 9,0 m 3,0 mm - 7,5 m 3,3 mm - 6,0 m 15 cm 6" 15 cm 6" 15 cm 15 cm 6" 6"...
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- Page 40 1150269-26 ´®z+R:|¶6/¨ ´®z+R:|¶6/¨ 2006-08-22...
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