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The carburetor adjustment screw (Q) must be adjusted so
that the engine responds promptly to sudden accelerations
and runs reliably at low speed.
The idle speed screw (P) must be adjusted to ensure a good
safety
margin
between
engagement.
To ensure a proper engine operation, the spark plug must
be clean and with adequate distance between the
electrodes.
There are several factors that can affect the operation of the
spark plug: incorrect carburetor adjustment and fuel
mixture, and dirty air filter. These factors cause deposits in
the spark plug electrodes, which leads to operating
problems and difficult starting.
If the earth auger is running low or has difficulty starting,
check the spark plug before making any further checks.
1. Remove the cap, unscrew the spark plug with the
supplied wrench and check if it is clean. If dirty, clean
the soot with a brush;
2. If the spark plug is "wet", with excess fuel, place a clean
cloth over the spark plug hole and pull the starter handle
several times without the spark plug installed;
3. 3. Measure the distance between the electrodes with
appropriate tools. The distance should be between 0.6-
0.7 mm. If necessary, bend the electrode until it has
enough gap;
4. Place the spark plug with your hand to prevent damage
to the thread and tighten in order to compress the
sealing gasket, using the wrench provided;
5. If the spark plug does not produce any sparks, replace it.
A loose spark plug can overheat and damage the
engine.
Always use the type of spark plug recommended by
the manufacturer (VIVELA5510). An incorrect use of
a spark plug can damage the cylinder.
idle
rotation
and
clutch
Replace the gearbox oil for every 100 working hours.
The earth auger does not require regular lubrication;
however, the gearbox and rotation shaft grease must be
checked frequently for a longer service life.
Storage and cleaning
Preparing storage for long periods is vital to avoid problems
and increase the service life of the auger.
Never store the tool with petrol in the tank. Depending on
the region and storage conditions, petrol can deteriorate
and oxidize, causing damages in the carburetor and fuel
system, difficult starts and clogging caused by particle
accumulation.
Before storage proceed as follows:
1. Remove the petrol from the tank;
2. Start the engine until it stops due to lack of fuel;
3. Remove the spark plug and add 2-stroke engine oil (5-10
cl) to the cylinder through the spark plug orifice;
4. Place a clean cloth over the spark plug orifice and pull
the starter handle to dispense the oil throughout the
cylinder;
5. Pull the starter handle slowly while feeling some
resistance. The piston rises and the intake and exhaust
valves are closed. Leaving the engine in this position will
help protect against internal corrosion;
6. Reinstall the spark plug.
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