Viking MA 443, Instruction Manual

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0478 131 9922 D - EN
● Set the required cutting height by
moving the machine upwards and
downwards. The current cutting height
can be read off at the cutting height
indicator (3) by means of the
marking (4).
● Release the detent lever (2) and allow it
to engage.
9.7 Level indicator
The upper part of the grass catcher
box features a level indicator (1).
The flow of air that is created by the rotary
movement of the mowing blade and is
responsible for filling the grass catcher box
raises the level indicator (2):
The grass catcher box is filled with
clippings.
When the grass catcher box is full, this
flow of air is reduced and the level
indicator drops (3):
● Empty filled grass catcher box ( Ö 12.4).
1 0. 1 General
To ensure a perfect, thick lawn, mow
regularly and keep the grass short.
Do not cut the lawn too short in hot, dry
conditions as it will dry out or burn in the
sun and become unsightly.
The cutting pattern will be better with a
sharp blade than with a blunt one; the
blade should therefore be sharpened
regularly (VIKING specialist dealer).
Cutting performance
The cutting performance (battery running
time) depends on the properties of the
grass and the selected cutting height. The
cutting performance is enhanced by the
following measures:
● Mow the lawn more frequently
● Increase the cutting height
● Reduce speed of propulsion
● Allow the lawn to dry before mowing.
If required, additional STIHL lithium-ion
batteries can be purchased (special
accessories).
1 0.2 Working area for operator
● For safety reasons, the operator
must stay within the working area
behind the handlebar when the motor is
running. Always observe the safety
distance provided by the handlebar.
● The lawn mower must only be operated
by one person. Other persons must
keep out of the danger area. (
Ö
4.)
1 0.3 Correct motor load
Do not switch on the lawn mower in tall
grass. Select a higher cutting height
setting if the motor is difficult to start.
The lawn mower load must never cause
the motor speed to drop significantly.
If the speed drops, select a higher cutting
height setting and/or reduce the rate of
feed.
1 0.4 If the mowing blade blocks
Switch off the motor immediately and
disconnect the safety plug. Then eliminate
the cause of the fault.
1 0.5 Thermal motor overload
protection
The electronics switch off the motor if it
becomes overloaded during operation.
Three red LEDs in the battery light up if a
thermal overload occurs. (
Ö 8.5)
Causes for an overload:
– mowing excessively high grass or
cutting height adjusted too low,
– excessive rate of feed,
– inadequate cleaning of the cooling air
guide (inlet slots).
Recommencing operation
Resume normal operation of the machine
following a cooling period of up to 10 min.
(depending on the ambient temperature)
(
Ö 12.2).
The machine is equipped with several
safety devices for safe operation and for
the prevention of improper use.
1 0. Notes on working with
the machine
1 7
1 8
11 . Safety devices
Risk of injury!
If a safety device is found to be
defective, the machine must not be
operated. Consult a specialist
dealer; VIKING recommends
VIKING specialist dealers.