Mowing On Slopes; Correct Motor Load; If The Mowing Blade Blocks; Thermal Motor Overload Protection - Viking ME 339 Gebrauchsanleitung

9.2 Mowing on slopes

For safety reasons, the lawn mower
must not be used on inclines of
more than 25°. A slope inclination of
25° (46.6%) corresponds to a vertical
height increase of 46.6 cm for a 100 cm
horizontal distance.

9.3 Correct motor load

Do not switch on the lawn mower in tall
grass or at the lowest cutting height.
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.

9.4 If the mowing blade blocks

Switch off the motor immediately and
disconnect the plug. Then eliminate the
cause of the fault.

9.5 Thermal motor overload protection

If an overload of the motor occurs during
operation, the built-in thermal overload
protection device automatically
deactivates the motor.
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),
– mowing blade is blunt or worn,
36
– unsuitable or excessively long electric
cable – voltage loss (
11 Recommencing operation
Resume normal operation of the machine
following a cooling period of up to 10 min
(depending on the ambient temperature)
( 11.).

10. Safety devices

10.1 Two-hand operation
The motor can only be switched on by
pressing and holding the start button with
the right hand and then pulling the
motorstop lever to the handlebar with the
left hand.

10.2 Motor run-down brake

When the motorstop lever is released, the
mowing blade comes to a complete
standstill in less than three seconds.
An integrated motor run-down brake
shortens the run-down time until the blade
stops.
11.1).

11. Operating the machine

11.1 Electrical connection
Only electric cables which are no lighter
than rubber sheathed cables H07 RN-
F DIN/VDE 0282 may be used as electric
cables.
Recommended minimum cross-
section:
up to 25 m Length: 3 x 1.5 mm²
up to 50 m Length: 3 x 2.5 mm²
The connectors of the electric cable must
be made of rubber or have a rubber cover
and conform to the standard
DIN/VDE 0620.
The mains voltage and mains frequency
must correspond to the information on the
identification plate and the information
contained in the section
"Technical specifications" (
The power cable must be adequately
protected by a fuse (
This machine is intended for operation with
a power supply having a system
impedance of Z
(house connection) of maximum
0.49 ohms (at 50 Hz).
Danger of electric shock!
Observe the safety instructions in
the section "For your safety" (
If using a cable drum, the
connection cord must be unwound
completely, otherwise electrical
resistance may cause loss of power
and overheating.
18.).
18.).
at the transfer point
max
0478 121 9917 E - EN
4.).