Husqvarna 326HS99 Adjusting the idle speed, T, High speed needle H, Correctly adjusted carburetor

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MAINTENANCE

Adjusting the idle speed, T

 

Adjust the idling speed with

 

the screw T, if it is necessary

 

to readjust. First turn the idle

 

speed adjusting screw T

T

clockwise until the blades

 

start moving. Then turn the

 

screw anti-clockwise until the

 

blades stop. The idle speed is

 

correctly adjusted when the

 

engine runs smoothly in

 

every position. There should

 

be a good margin to the

 

speed when the cutters start

 

to move. The cutters should

 

not move when the choke

 

control is in the start throttle

 

position.

 

WARNING! Contact your dealer/service workshop if the idle speed setting cannot be adjusted so that the blades stop. Do not use the machine until it has been properly adjusted or repaired.

High speed needle H

 

The high speed needle affects

H

the machine’s power, speed,

 

temperature and fuel

 

consumption. A too lean

 

adjustment on the high speed

 

needle H (the high speed

 

needle H is screwed in too

 

much) gives a too high speed

 

resulting in engine damage.

 

Do not allow the engine to

 

run at full speed for more

 

than 10 seconds.

 

Apply full throttle and turn

 

the high speed needle H

 

slowly anticlockwise until the

 

engine runs unevenly. The

 

high speed needle H is then

 

turned slowly clockwise a

 

little until the engine runs

 

smoothly.

 

Note the engine should be

 

run unloaded when adjusting

H

the high speed needle.

 

The high speed needle is

 

adjusted correctly when the

 

machine ”splatters” a little . If the machine smokes heavily at the same time as it ”splatters” heavily the adjustment is too rich.

NOTE! For optimum setting of the carburetor, contact a qualified servicing dealer who has a revolution counter at his disposal.

Correctly adjusted carburetor

When the carburettor is correctly adjusted the machine will accelerate without hesitation and the engine will splutter a little at maximum speed. In addition, the cutters must not move when idling or when the choke control is in the start position. If the low speed needle is set for too lean a mixture it can cause starting problems and poor acceleration.

A too lean adjusted high speed needle H gives lower power = less capacity, bad acceleration and/or damage to the engine. A too rich adjustment of the two speed needles L and H gives acceleration problems or too low working speed.

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Contents English Operators manual Carb II, EPASymbols Symbol ExplanationContents Safety Instructions Personal protective eqipmentMachine’s protective equipment Muffler Vibration damping systemCheck that the hand guard D is secured Assembly of the catcher accessory BladesGearbox General safety instructions Start Fuel safetyTransport and storage Protective instructions while working Safety instructions when using the hedge trimmerPersonal protection Protective instructions regarding the surroundingsBasic working techniques Protective instructions when work is completedWhat is what on the hedge trimmer? What is WHAT?Fuel Handling Fuel mixtureFuelling Start Start and StopControl before starting Start and stopCarburetor MaintenanceAdjusting the idle speed, T Correctly adjusted carburetorHigh speed needle H Spark plug Muffler Cooling systemGearbox Cleaning and lubricationCleaning the air filter Air filterMonthly maintenance Maintenance scheduleDaily maintenance Weekly maintenanceTechnical data 326HS75 326HS99 Technical DataEmission Control Warranty Statement English ´+H!¶33¨ English 2002W01 114 00

326HS99, 326HS75 specifications

The Husqvarna 326HS75 and 326HS99 are two advanced hedge trimmers designed for both professional landscapers and dedicated gardeners. These models exhibit a fusion of power, durability, and cutting-edge technology, providing an efficient solution for maintaining hedges and shrubs.

One of the most notable features of both models is their powerful engine. The Husqvarna 326HS75 comes equipped with a 24.5 cc, 1.0 kW two-stroke engine, while the 326HS99 is powered by a more robust 27.6 cc engine, delivering 1.1 kW of power. This allows users to tackle even the most resilient hedges with ease, achieving clean, precise cuts without straining the machine.

The innovative design of the cutting system is another highlight. Both models feature double-sided blades, designed for optimal cutting efficiency. The 26-inch long blades provide an extended reach, ideal for reaching high or wide hedges. The sharp, dual-action cutting design minimizes vibrations and enhances cutting speed, allowing users to work through dense foliage quickly.

In terms of comfort, both hedge trimmers incorporate ergonomic handles that reduce operator fatigue during prolonged use. They are designed with a lightweight structure, making them easy to maneuver. Additionally, the adjustable rear handle ensures a secure grip, providing better control in various cutting positions.

The 326HS75 and 326HS99 also showcase advanced technology to enhance performance. The LowVib technology minimizes vibrations typically experienced during operation, aiding in user comfort and safety. Furthermore, the Air Injection feature in both models ensures a clean air supply to the engine, which leads to improved performance and extended intervals between air filter cleaning.

For users concerned about environmental impact, both models adhere to stringent emission regulations, ensuring efficient fuel consumption while reducing harmful emissions. The fuel tank design allows for a transparent view of fuel levels, preventing unexpected downtime.

In summary, the Husqvarna 326HS75 and 326HS99 hedge trimmers are exemplary tools in the landscaping segment. Their combination of powerful engines, efficient cutting systems, ergonomic design, and innovative technologies make them ideal for anyone looking to achieve professional results while maintaining comfort and reducing environmental impact. Whether for commercial or residential use, these hedge trimmers provide the reliability and performance necessary to shape and define any garden space.
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