Blade Brake Clutch (Bbc); Notes On Working With The; Working Area For Operator; Operating The Machine - Viking MB 756 GS Gebrauchsanleitung

8. Blade brake clutch (BBC)

Your lawn mower is equipped with a
blade brake clutch (BBC).
This means that the mowing blade stops
within a short time after it is disengaged,
but the engine keeps running.
In order to prevent injuries or damage to
the machine, ensure that you are familiar
with operation of the BBC system prior to
initial use.
Two-hand operation:
The mowing blade can only be engaged as
follows with the engine running:
Press blade stop lever (1) towards the
handlebar and hold, then pull blade clutch
lever (2) upwards with the other hand and
allow it to engage.
Risk of injury!
For safety reasons, the lever must
never be disabled, e.g. by tying it to
the handlebar.
Operation of the blade brake clutch
must be checked before each use.
( 10.4)
Avoid damage to the machine!
Avoid overloading as this can result
in greater wear to the blade brake
clutch and consequently to
overheating. ( 9.)

9. Notes on working with the

machine
Avoid overloading of the blade brake
clutch
An overload can occur
0478 111 9925 C - EN
– if mowing is continued when the grass
catcher bag is full.
– if the mowing channel is blocked.
– if mowing at excessive speed in high
grass.
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If the mowing blade is blocked, the grass is
no longer cut and the engine cuts out.
For this reason, never mow when the
mowing channel is blocked or the grass
catcher bag is full; adapt the driving speed
to the conditions. Use a mulching kit
(special accessory) if necessary.
Completion of work
Upon completing work, always remove
combustible material (grass, leaves, etc.)
from the housing and engine to prevent a
fire hazard.
A perfect, thick lawn is achieved by
– Mowing at low driving speeds.
– Mowing regularly and keeping the grass
short.
– Not cutting the lawn too short in hot, dry
conditions as it will be burnt by the sun
and become unsightly.
– Using a sharp mowing blade – mowing
blade should therefore be sharpened
regularly (specialist dealer).
– Changing the cutting direction regularly.

9.1 Working area for operator

● For safety reasons, the operator
must stay within the working area
behind the handlebar when starting the
engine and when the engine 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. (

10. Operating the machine

Risk of injury!
Carefully read and observe the "For
your safety" section before
operating the machine. (

10.1 Starting the engine

● Check the oil and fuel levels.
( 7.5)
● Open tank ventilation screw (1) and fuel
cock (2).
● Set throttle lever (3) to the
Choke position (4) when the
engine is cold.
Set throttle lever (3) to the Start
position (5) when the engine is
warm or during hot weather.
● Pull recoil starter rope (6) slowly to the
point of compression resistance and
then pull vigorously to arm's length to
prevent kickback.
Slowly release the cable so that it can
gradually be rolled up by the starter.
Repeat the starting procedure until the
engine starts.
● Set throttle lever (3) to the Start
position (5).
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Risk of injury!
If the recoil starter rope recoils at
high speed, the hand and arm will
be pulled towards the engine faster
than the cable can be released.
This can result in broken bones,
crush injuries and sprains.
4.)
4.)
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