Husqvarna 322R manual Maintenance, Carburetor

Page 23

MAINTENANCE

Carburetor

Your Husqvarna product has been designed and manufactured to specifications that reduce harmful emissions.

After your unit has been run 8-10 tanks of fuel the engine has broken in. To ensure that your unit is at peak performance and producing the least amount of harmful emissions after break in, have your authorized servicing dealer, who has a revolution counter at his disposal, to adjust your carburetor for optimum operating conditions.

!WARNING!

The complete clutch cover with shaft must be fitted before the machine is started, otherwise the clutch can become loose and cause personal injury.

Functioning

•The carburetor governs the

engine speed via the throttle trigger. In the carburetor, air/fuel is mixed. This air/fuel mixture is adjustable. If you want to take advantage of the maximum output of the engine, the setting must be corret.

•The setting of the carburetor means that the engine is adjusted to local conditions, for example climate, altitude, gasoline and type of two-stroke oil.

•The carburetor has three adjustment possibilities:

L=

Low speed needle

H=

High speed

adjustment screw

T=

Idle speed adjustment

screw

•The fuel quantity required in proportion to the airflow the throttle trigger level allows is adjusted by means of the L- and H- needles. Turning the needles clockwise gives a leaner fuel mixture (less fuel), turning them counter-clockwise gives a richer fuel mixture (more fuel). A lean mixture gives higher rpms and a rich one lower rpms.

•The idling speed screw T regulates the position of the throttle lever in the idling speed position. Turn the idling speed screw clockwise gives a higher idling speed, turn it counter-clockwise a lower idling speed.

Basic setting

•The carburetor is set to its basic setting when test run at the factory. The basic setting should be kept during the machine‘s first working hours. Thereafter the carburetor should be finely adjusted. Fine adjustment should be carried out by a skilled technician.

NOTE! If the cutting attachment rotates/moves in the idling position, turn the idling speed screw counter-clockwise until the blade stops.

Rec. idling speed: 2 700 rpm.

Recommended max. speed: See “Technical Data” .

!WARNING!

Contact your servicing dealer, if the idle speed setting cannot be adjusted so that the cutting attachment stops. Do not use the machine until it has been properly adjusted or repaired.

Fine adjustment

•When the machine has been ”run-in” the carburetor should be finely adjusted. The fine adjustment should be carried out by qualified person. First adjust the L-jet, then the idling screw T and then the H-jet.

Conditions

•Before any adjustments are made the airfilter should be clean and the airfilter cover fitted. Adjusting the carburetor while a dirty airfilter is in use will result in a leaner mixture when the filter is finally cleaned. This can give rise to serious engine damage.

•Carefully turn the L and H needle to the mid point between fully turned in and fully turned out.

•Do not attempt to adjust the needles beyond the stops as damage can occur.

•Now start the machine according to the starting instructions and run it warm for 10 minutes.

NOTE! If the cutting attachment rotates/moves the T screw should be turned anti-clockwise until the cutting attachment stops.

Low speed needle L

 

 

 

 

 

 

 

 

Try to find the highest idling

 

 

 

 

 

 

 

 

speed, turning the low speed

 

 

 

 

 

 

 

 

needle L clockwise

 

 

 

 

 

 

 

 

respectively counter-

 

 

 

 

 

 

 

 

clockwise. When the highest

 

 

 

 

 

 

 

 

speed has been found, turn

 

 

 

 

 

 

 

 

the low speed needle L 1/4

 

 

 

 

 

 

 

 

turn counter-clockwise.

 

 

 

 

 

 

 

 

NOTE! If the cutting

 

 

 

 

 

 

 

 

attachment rotates/moves in

 

+ 1/4

 

 

 

 

 

 

 

 

 

 

 

the idling position, turn the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

idling speed screw T

 

 

 

 

 

 

 

 

counter-clockwise until the

 

 

 

 

 

 

 

 

cutting attachment stops.

 

 

 

 

 

 

 

 

 

L

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Contents 101 91 72 322R 325R-X/R-XTSymbols Symbol ExplanationContents Throttle trigger lock Safety InstructionsMachine‘s safety equipment Personal protective equipmentQuick-release Stop switchCutting attachment guard Anti-vibration systemClearing blades are intended for cutting wood MufflerCutting equipment Locking nutThrottle trigger lock Vibration damping system Cutting equipment Trimmer head Cutting equipmentSharpening Grass bladeTransport and storage General safety instructionsFuel safety StartGeneral working instructions Basic safety precautionsDesignations Adjusting the harness and clearing sawBasic clearing techniques Working methods Grass clearing using a grass bladeBrush cutting using the saw blade Clearing‘s ABCSweeping Grass clearing using the trimmer head and plastic bladesClearing TrimmingWhat is what on the brushcutter? What is WHAT?Transport position, handlebars 325R-X/R-XT AssemblyAssembling the handlebars 322R Assembling the handlebars 325R-X/ R-XTGrass blade Guard. See Technical DataFit the appropriate guard Dismantling Adjusting the harness and clearing sawAssembling and dismantling the two-part shaft 325R-XT AssemblingFuelling Fuel HandlingFuel mixture Start and stop Start and StopControl before starting Carburetor MaintenanceHigh speed needle Final setting of the idling speed TCorrectly adjusted carburetor Two-part shaft MufflerCooling system Angle gearOiling the air filter Air filter Spark plugFiling the grass blade Monthly maintenance Maintenance scheduleDaily maintenance Weekly maintenanceTechnical data 322R 325R-X Technical DataGuard Ref No Approved accessories 325R-X/R-XT Type Cutting attachmentType Cutting attachment Guard Art No Centre hole in blades Ø 25,4 mmYour Warranty Rights Obligations Emission Control Warranty StatementSuper Auto Super Auto II Tri Cut Trimmy H Click Trimmy Hit Junior Trimmy Hit Pro 2,4 mm 080-.095 12 cm ~ 3,5 m ~ 15 cm ´*31=¶53¨ 502 26 2001W16

322R specifications

The Husqvarna 322R is a versatile and efficient brushcutter designed for extensive use in both residential and professional applications. This powerful piece of equipment is known for its reliable performance, ergonomic design, and cutting-edge features that make yard maintenance tasks more manageable.

One of the standout features of the Husqvarna 322R is its robust 2-stroke engine, which delivers ample power while ensuring fuel efficiency. The engine is engineered to provide consistent performance, allowing users to tackle tough overgrowth with ease. The model comes with an impressive displacement, which translates to enhanced torque and cutting power, enabling operators to handle a variety of tasks ranging from trimming grass to clearing dense vegetation.

The design and ergonomics of the 322R are engineered with the user in mind. It features an adjustable handle that enhances comfort during prolonged use, minimizing fatigue and allowing for greater precision in operating angles. Additionally, it has a lightweight construction that makes it easy to maneuver without sacrificing durability. The harness system is also ergonomically designed to evenly distribute weight, providing optimal balance for the user.

In terms of technology, the 322R incorporates advanced features such as Smart Start™, which enables the engine to start with minimal effort. This innovative technology reduces the resistance in the starter cord, making it easier for users to start the equipment even after extended periods of inactivity. The trimmer is also equipped with an auto-return stop switch, which ensures that the switch automatically resets to the "on" position, allowing for more convenient starting and eliminating unnecessary downtime.

The Husqvarna 322R features a heavy-duty cutting head designed for durability and efficiency. The double-line cutting system delivers a clean and efficient cut, making it suitable for tackling thicker grass and weeds without bogging down. This brushcutter can accommodate various types of cutting attachments, expanding its versatility for different applications.

In addition to its powerful performance and advanced features, the Husqvarna 322R is built with a commitment to sustainability. The engine meets strict emission standards, reducing its environmental impact while delivering high performance.

In summary, the Husqvarna 322R is an exceptional brushcutter that combines power, ergonomic design, and advanced technology. It’s an ideal tool for homeowners and professionals alike, delivering outstanding results for all types of cutting tasks while ensuring comfort and ease of use. Whether clearing brush or maintaining a tidy lawn, the 322R excels in performance and reliability.
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