8. Install /reinstall the spark plug carefully by hand.
9. Once the spark plug has been se ated, tighten it with a spark plug wrench.
10. R einstall the spark plug ca p on top of the spa rk plug.
11. R einstall the spark plug cover.
C leaning
1.
Keep your machine clean, the outside of the machine can be cleaned using a damp soft cloth with a
mild detergent if required, never usewater to clean the machine as it may cause damage to internal
parts.
2. Some maintenance products and solvents may damage the plastic parts, these include products
containing benzene, chloride and ammonia.
3.
Take special care to keep the ventilation inlets /outlets free from obstruction. Cleaning with a soft
brush followed by a compressed air jet will usually be sucient to ensure acceptable internal
cleanliness.
4. Weareye protection when carrying out cleaning.
Adjusting of carburettor
The carburettor governs the engine’s speed via the throttle control. Air and fuel are mixed in the carburettor.
The air/fuel mixture is adjustable. Correct adjustment is essential to get the best performance from the machine.
Adjusting the carburettor means that the engine is adapted to local operating conditions, e.g. climate, altitude,
petrol and the type of 2-stroke oil.The engine has been tested in the factory with initial adjustment. The user
need not adjust the carburettor. it continues to run at peak performance and to minimize harmful exhaust
emiss
ions.
To ensure that after the running-in period, please always contact an authorised service centre who
can adjust the carburettor accordingly.
Adjusting of idle s peed
A screw just behind air lter cover regulates the throttle setting at idle speed. The user can adjust the idle speed,
if it’s necessary.
Before any adjustment, make sure that the air lter is clean and the air lter cover is tted.
Turn the screw clockwise can give a higher idle speed; turning it anti-clockwise gives a lower idle speed.
The idle speed is correctly adjusted when the engine runs smoothly in every position. There should also be a
clear margin to the speed at which the blades start to move. The blades must also remain stationary when the
choke control is in the start throttle position.
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16
Operator's Manual
Hyundai HYT2622 & HYT2622-II Hedge Trimmer
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