PRELIMINARY PREPARATION
AND CHECKS
BALANCING THE MACHINE
Attach the brushcutter as illustrated [1].
Once the machine is in place, it is
essential to check that it is correctly
balanced. This check must be
performed with the cutting attachment
fitted on the appliance and with the fuel
tank half-full.
Adjust the length of the harness so that
the cutting attachment is parallel to,
and in contact with, the ground.
When the machine is equipped with a grass-cutting disc, the disc must
be fitted with the stabilizer (see page 5).
Correct balancing is obtained when the cutting-attachment guard just
gently touches the ground [2].
[2]
It must be possible to raise the cutting attachment off the ground with
only a slight effort on the handles. If adjustment is required, move the
attachment point [4] forwards if the cutting attachment feels too heavy
or rearwards if it feels too light. Loosen the bolts with the Torx wrench [3]
supplied to move the harness attachment point to the desired position.
[3]
[4]
[3]
CAUTION:
• For your safety, the handles can not be adjusted beyond the safety collar [11].
• UEET type: be careful not to pull the throttle cable too tight when moving
the handle [5]. Check that the throttle trigger operates smoothly.
When you have found the ideal position, check the balance again and
adjust if necessary.
Then securely tighten the bolts to lock the handle in position. For
reference, the standard adjustments are as follows for the specified
types of brushcutter:
UMK425E
[6]
530 mm
[7]
760 mm
6 EN
SAFETY
[1]
[2]
[11]
[5]
[5]
[11]
[3]
[6]
[7]
UMK435E
LEET type
545 mm
775 mm
B9
[8]
[9]
FILLING THE FUEL TANK
Use unleaded petrol E10, with a Research Octane Number of 91 or
higher (a Pump Octane Number of 86 or higher).
The pressure inside fuel tanks
may increase when the ambient
temperature rises.
The cap should be removed
with care to avoid any
splashing of fuel. Fuel should
be stored in a cool place, for
short periods of time, and must
never be left in direct sunlight.
Fuel specification(s) necessary
to maintain the performance of
the emissions control system:
E10 fuel referenced in EU regulation.
[4]
Tank capacity
Recommended fuel
CAUTION:
• Clean the fuel tank cap and its edges to prevent foreign bodies from
entering the tank.
• Fill the fuel tank with a suitable funnel or a jerrycan with a suitable spout.
• For easy filling, place the machine in the operating position.
• Make sure that the machine remains in a stable position throughout
this operation so that it does not fall over.
FUEL STORAGE
NOTE :
• Petrol will oxidize and deteriorate in storage.
Old petrol will cause hard starting, and it leaves gum deposits that clog
the fuel system. If the petrol in your engine deteriorates during
storage, you may need to have the carburetor and other fuel system
components serviced or replaced.
• Ensure that you use containers or
drums specifically designed for
hydrocarbons [10]. This will
prevent polluting the fuel through
the dissolution of the container
walls, which will lead to poor
functioning of the engine.
• Store the fuel in a dark place, in a
room at constant temperature
(avoid garden sheds).
• The warranty does not cover a blocked carburetor or valves
jammed by old or polluted fuel.
• The quality of unleaded petrol alters very quickly (2 to 3 weeks in
some cases). Do not use fuel more than 1 month old. Store the
absolute minimum required for your monthly consumption.
[8]
[9]
UMK425E
UMK435E
UEET type
490 mm
500 mm
740 mm
750 mm
SAFETY
UMK425E
UMK435E
0.58 l (580 cc)
0.63 l (630 cc)
Premium unleaded
[10]
B3 C12