TROUBLE SHOOTING

High speed

Will not run at full

Adjust H-screw

throttle

Blocked air filter

 

 

Tank ventilator blocked

 

Blocked fuel filter

 

Blocked fuel line

 

Loose or faulty fuel pipe

 

Impulse channel leaking

 

Blocked impulse channel

 

Cover on the carburettor’s pump side

 

is loose

 

Faulty pump diaphragm

 

Leaking inlet manifold (rubber)

 

Loose carburettor mounting

 

Control system set too low

 

Damaged control system

 

Incorrectly fitted control system

 

Leaking diaphragm/cover plate

 

Control system sticking

 

Blocked muffler

 

 

Low power

Adjust H-screw

 

Tank ventilator blocked

 

Blocked fuel filter

 

Impulse channel leaking

 

Blocked impulse channel

 

Cover on the carburettor’s pump side

 

is loose

 

Faulty pump diaphragm

 

Blocked air filter

 

Control system sticking

 

Leaking control system (air or fuel)

 

Control system incorrectly assembled

 

Loose diaphragm

 

Hole in diaphragm

 

Leaking diaphragm/cover plate

 

 

Will not "four stroke"

Tank ventilator blocked

 

Blocked fuel filter

 

Blocked fuel line

 

Loose or faulty fuel pipe

 

Impulse channel leaking

 

Blocked impulse channel

 

Cover on the carburettor’s pump side

 

is loose

 

Faulty pump diaphragm

 

Leaking inlet manifold (rubber)

 

Loose carburettor mounting

 

Control system set too low

 

Leaking control system (air or fuel)

 

Control system incorrectly assembled

 

Loose diaphragm

 

Hole in diaphragm

 

Leaking diaphragm/cover plate

 

 

Acceleration and retardation

Does not accelerate

Adjust the L-screw

 

Adjust H-screw

 

Blocked air filter

 

Tank ventilator blocked

 

Blocked fuel filter

 

Blocked fuel line

 

Loose or faulty fuel pipe

 

Blocked impulse channel

 

Cover on the carburettor’s pump side

 

is loose

 

Faulty pump diaphragm

 

Leaking inlet manifold (rubber)

 

Loose carburettor mounting

 

Control system set too low

 

Incorrectly fitted control system

 

Control system sticking

 

Faulty diffuser jet

 

Blocked muffler

 

 

Engine stalls when

Adjust the L-screw

throttle is released

Adjust H-screw

 

Faulty pump diaphragm

 

Control system set too high

 

Control system sticking

 

Faulty diffuser jet

 

 

Too rich acceleration

Adjust the L screw

 

Adjust H-screw

 

Blocked air filter

 

Faulty pump diaphragm

 

Faulty diffuser jet

 

 

Trouble shooting methods

In addition to faults given in the above schematic, trouble shooting can be carried out on a specific component or specific chain saw system. The different procedures are described in respective sections and are as follows:

1.Pressure testing the carburettor. See the chapter "Carburettor".

2.Pressure testing the crankcase and cylinder. See the chapter "Crankshaft, Piston and Cylinder".

English – 11

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Husqvarna 339XP, 334T, 338XPT, 336, Chain Saw manual Trouble shooting methods, High speed, Acceleration and retardation

338XPT, 334T, Chain Saw, 336, 339XP specifications

The Husqvarna 336 is a powerful and reliable chainsaw designed for both professional forestry work and demanding garden tasks. This versatile tool is ideal for users who value durability, performance, and ease of use. The 336 model stands out in the Husqvarna range thanks to its innovative features and cutting-edge technology.

One of the main highlights of the Husqvarna 336 is its efficient engine. Powered by a 34.6 cc, 2.6 kW engine, it strikes a balance between power and weight, ensuring that users can handle it comfortably during extended use. The X-Torq engine technology reduces fuel consumption and emissions, making it an environmentally-friendly option, while still delivering high performance.

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In summary, the Husqvarna 336 is a standout chainsaw that combines power, comfort, and advanced technology. Its features, including the X-Torq engine, ergonomic design, safety elements, and ease of maintenance, make it an excellent investment for anyone serious about forestry work or outdoor upkeep. Whether pruning trees, cutting firewood, or felling small trees, the Husqvarna 336 excels in performance and reliability, ensuring users get the job done efficiently and effectively.