Jonsered GR50 manual Technical Data, Technical data

Page 30

TECHNICAL DATA

Technical data

Technical data

RS44

RS52

Engine

 

 

Cylinder displacement, cu.in/cm3

2,70/44,3

3,10/50,8

Cylinder bore, inch/mm

1,65/42

1,77/45

Stroke, inch/mm

1,26/32

1,26/32

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

No

No

Ignition system

 

 

Manufacturer/type of ignition system

EM/ET

EM/ET

Spark plug

NGK BPMR 7A/Champion

NGK BPMR 7A/Champion

RCJ 7Y

RCJ 7Y

 

Electrode gap, inch/mm

0,02/0,5

0,02/0,5

Fuel and lubrication system

 

 

Manufacturer/type of carburetor

Zama C1Q

Walbro HDA

Fuel tank capacity, US pint/litre

1,70/0,8

1,60/0,75

Weight

 

 

Weight without fuel, cutting attachment and guard, Lbs/kg 18,5/8,4

20,1/9,1

Sound levels

 

 

(see note 1)

 

 

Equivalent sound pressure level at the users ear,

 

 

measured according to ANSI B175.3-1997, dB(A), min/

100/103

98/104

max:

 

 

Vibration levels

 

 

Vibration levels at handles, measured according to ANSI

 

 

B175.3-1997, m/s2

 

 

At idle, left/right handles, min.:

2,5/2,7

3,4/4,0

At idle, left/right handles, max.:

3,5/3,5

3,4/4,0

At max. speed, left/right handles, min.:

3,3/3,3

1,4/3,0

At max. speed, left/right handles, max.:

4,8/5,4

5,8/7,4

Note 1: Equivalent noise pressure level is calculated as the time-weighted energy total for noise pressure levels under various

working conditions with the following time distribution: 1/2 idle and 1/2 max. speed.

NOTE! Noise pressure at the user’s ear and vibration on the handles are measured with all the machine’s approved cutting equipment fitted. The table indicates the highest and lowest values.

RS44/RS52

 

 

 

 

 

Approved accessories

Type

Cutting attachment guard, Art. no.

 

 

 

Centre hole in blades/cutters, Ø 20 mm

Output shaft thread M12

 

 

 

 

Grass blade/grass cutter

Multi 255-3 (Ø 255 3 teeth)

502 26 34-03

 

 

Multi 300-3 (Ø 300 3 teeth)

502 26 34-03

 

 

 

 

Saw blade

Opti XS 200-22 (Ø 200 22 teeth)

502 27 22-01

 

 

Opti XS 225-22 (Ø 225 22 teeth)

502 03 94-05

 

 

 

 

Plastic blades

Polytrim Ø 300

503 91 60-03 / 502 26 34-03

 

 

 

Trimmer head

Trimmy S II

503 91 60-03

 

 

Auto 55

503 91 60-03

 

 

 

 

Support cup

Fixed

-

 

 

With ball bearing

-

 

 

 

 

30 – English

Image 30
Contents Operator’s manual EPA KEY to Symbols SymbolsContents Introduction Dear customerWhat is WHAT? What is what on the clearing saw? RS44What is what on the clearing saw? RS52 General Safety Precautions Personal protective equipmentMachine′s safety equipment Stop switchThrottle lock Quick release Cutting attachment guardVibration damping system MufflerLocking nut Locking screwCutting equipment Cutting equipmentSharpening grass cutters and grass blades Sharpening the saw blade Trimmer headAssembly Transport position, handlebarFitting a blade guard, grass blade and grass cutter Blade guard a is fitted using 4 screws L as shown Fitting the blade guard and saw bladeAdjusting the harness and clearing saw Fitting other guards and cutting attachmentsStandard harness Adjusting the harness Vector harnessCorrect balance Fuel safety Fuel HandlingFuel Fueling MixingStarting and stopping Starting and StoppingCheck before starting Cold engineStarting StoppingGeneral working instructions Basic safety rulesWorking Techniques ABC of clearingForestry clearing using a saw blade Brush cutting with a saw bladeGrass clearing using a grass blade Grass trimming with a trimmer headSweeping Maintenance CarburetorHigh speed jet H GR41, GR50, RS44 Fine adjustment of the idle speed TLow speed jet L High speed jet H RS52Cooling system Correctly adjusted carburetorMuffler Air filterCleaning the air filter Bevel gearSpark plug Maintenance schedule Maintenance Daily Weekly MonthlyTechnical Data Technical dataFederal Emission Control Warranty Statement Your Warranty Rights and ObligationsTrimmy 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.