Jonsered GR50 manual Maintenance schedule, Maintenance Daily Weekly Monthly

Page 29

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 manual. More extensive work must be carried out by an authorised service workshop.

Maintenance

Daily

Weekly

Monthly

maintenance

maintenance

maintenance

 

 

 

 

 

Clean the outside of the machine.

X

 

 

 

 

 

 

Check that the harness is not damaged.

X

 

 

 

 

 

 

Make sure the throttle trigger lock and the throttle function correctly from a

X

 

 

safety point of view.

 

 

 

 

 

 

 

 

 

 

X

 

 

 

 

 

 

Check that the stop switch works correctly.

X

 

 

 

 

 

 

Check that the cutting attachment does not rotate at idle.

X

 

 

 

 

 

 

Clean the air filter. Replace if necessary.

X

 

 

 

 

 

 

Check that the guard is undamaged and not cracked. Replace the guard if

X

 

 

it has been exposed to impact or is cracked.

 

 

 

 

 

 

 

 

 

Check that the blade is correctly centred, is sharp, and is not cracked. An

 

 

 

off-centre blade will cause vibration that could result in damage to the

X

 

 

machine.

 

 

 

 

 

 

 

Check that the trimmer head is undamaged and not cracked. Replace the

X

 

 

trimmer head if necessary.

 

 

 

 

 

 

 

 

 

Check that the locking nut of the cutting equipment is tighten correctly.

X

 

 

 

 

 

 

Check that the locking screw is tightened when using a support cup with

X

 

 

bearings.

 

 

 

 

 

 

 

 

 

Check that the transport guard for the blade is intact and that it can be

X

 

 

secured correctly.

 

 

 

 

 

 

 

 

 

Check that nuts and screws are tight.

X

 

 

 

 

 

 

Check that there are no fuel leaks from the engine, tank or fuel lines.

X

 

 

 

 

 

 

Check the starter and starter cord.

 

X

 

 

 

 

 

Check that the vibration damping elements are not damaged.

 

X

 

 

 

 

 

Clean the outside of the spark plug. Remove it and check the electrode

 

 

 

gap. Adjust the gap to 0.5 mm (.20”), or replace the spark plug. Check that

 

X

 

the spark plug is fitted with a suppressor.

 

 

 

 

 

 

 

Clean the machines cooling system.

 

X

 

 

 

 

 

Clean or replace the spark arrestor mesh on the muffler (only applies to

 

X

 

mufflers without a catalytic converter).

 

 

 

 

 

 

 

 

 

Clean the outside of the carburettor and the space around it.

 

X

 

 

 

 

 

Check that the bevel gear is filled three-quarters full with lubricant. Fill if

 

X

 

necessary using special grease.

 

 

 

 

 

 

 

 

 

Check the fuel filter from contamination and the fuel hose from cracks or

 

 

X

other defects. Replace if necessary.

 

 

 

 

 

 

 

 

 

Check all cables and connections.

 

 

X

 

 

 

 

Check the clutch, clutch springs and the clutch drum for wear. Replace if

 

 

X

necessary by an autorized service workshop.

 

 

 

 

 

 

 

 

 

Replace the spark plug. Check that the spark plug is fitted with a

 

 

X

suppressor.

 

 

 

 

 

 

 

 

 

Check and clean the spark arrestor mesh on the muffler (only applies to

 

 

X

mufflers fitted with a catalytic converter).

 

 

 

 

 

 

 

 

 

RS52: Lubricate the drive shaft with the special grease.

Do this every three months.

 

 

 

 

 

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Contents Operator’s manual EPA Symbols KEY to SymbolsContents Dear customer IntroductionWhat is what on the clearing saw? RS44 What is WHAT?What is what on the clearing saw? RS52 Personal protective equipment General Safety PrecautionsThrottle lock Machine′s safety equipmentStop switch Vibration damping system Cutting attachment guardQuick release MufflerLocking screw Locking nutSharpening grass cutters and grass blades Cutting equipmentCutting equipment Trimmer head Sharpening the saw bladeFitting a blade guard, grass blade and grass cutter AssemblyTransport position, handlebar Fitting the blade guard and saw blade Blade guard a is fitted using 4 screws L as shownStandard harness Adjusting the harness and clearing sawFitting other guards and cutting attachments Correct balance Adjusting the harnessVector harness Fuel Fuel safetyFuel Handling Mixing FuelingCheck before starting Starting and StoppingStarting and stopping Cold engineStopping StartingWorking Techniques Basic safety rulesGeneral working instructions ABC of clearingBrush cutting with a saw blade Forestry clearing using a saw bladeGrass trimming with a trimmer head Grass clearing using a grass bladeSweeping Carburetor MaintenanceLow speed jet L Fine adjustment of the idle speed THigh speed jet H GR41, GR50, RS44 High speed jet H RS52Muffler Correctly adjusted carburetorCooling system Air filterSpark plug Cleaning the air filterBevel gear Maintenance Daily Weekly Monthly Maintenance scheduleTechnical data Technical DataYour Warranty Rights and Obligations Federal Emission Control Warranty StatementTrimmy SII Page ´z+R!o¶5*¨ Page 1150017-95 ´z+R!o¶5*¨ ´z+R!o¶5*¨

GR50 specifications

The Jonsered GR50 is a robust and versatile garden tractor that caters to the needs of both residential and professional gardeners. Designed for performance, the GR50 merges comfort and advanced technology, making it a popular choice among gardening enthusiasts.

One of the standout features of the Jonsered GR50 is its powerful engine. It comes equipped with a high-performance overhead valve engine that provides excellent torque and reliability. This engine ensures that the tractor can handle various terrain types and grass heights, making it ideal for both small and large lawns. Additionally, the high-efficiency engine minimizes fuel consumption while maximizing power output, making it an economical choice for users.

The GR50 offers an impressive cutting deck, which is available in various sizes to meet different mowing needs. The adjustable cutting height allows users to customize the grass length, ensuring a clean and even cut every time. The cutting deck design incorporates anti-scalp wheels, which help to prevent turf damage, especially on uneven surfaces. This feature is crucial for maintaining a healthy lawn and enhancing the overall appearance of outdoor spaces.

One of the key technologies integrated into the Jonsered GR50 is its hydrostatic transmission, which provides smooth and uninterrupted speed control. Users can easily adjust their mowing speed without constantly shifting gears, making it easier to navigate around obstacles or maneuver in tighter spaces. This feature significantly improves user experience and efficiency during mowing tasks.

Comfort is also a top priority in the design of the GR50. It features an ergonomically designed seat that is both adjustable and padded, allowing users to mow for extended periods without discomfort. The easy-to-use dashboard includes intuitive controls that enable quick adjustments and settings changes. This focus on user comfort and convenience makes the GR50 a delight to operate.

Furthermore, the Jonsered GR50 is designed with durability in mind. Its robust construction, combined with high-quality materials, ensures that it can withstand the rigors of regular use. This makes it a reliable investment for anyone looking to maintain their garden or lawn.

In summary, the Jonsered GR50 is a powerful, efficient, and comfortable garden tractor that embodies the perfect blend of technology and user-friendly features. With its strong engine, versatile cutting deck, hydrostatic transmission, and ergonomic design, it stands out as a top choice for gardening tasks. Whether for residential use or professional landscaping, the GR50 delivers exceptional performance and reliability.
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