Manual Viking MB 455 M (page 14 of 148) (English, Danish, Polish, Swedish, Norwegian, Finnish)

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0478 105 9821 K - EN

Notes on mowing Blade brake clutch (BBC)

NOTE

Mulching function

MB 450 M, MB 455 M

To ensure a perfect, thick

lawn, mow regularly and keep

the grass short. Do not cut too

short in hot, dry conditions as

the lawn 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

must therefore be sharpened

regularly (dealer).

Do not mow wet grass or mow

in the rain. The risk of acci-

dents is higher if the grass is

wet (increased danger of

slipping for operator).

For safety reasons, always

use an undamaged grass

catcher bag.

Mulching is performed with

the new multi-blade - i.e. the

grass is cut in steps, chopped

to a fine organic mass in the

housing closed off by the

mulch insert and is ejected

back into the grass to

decompose.

The cuttings must not be

disposed of when mulching,

as the finely chopped grass

decomposes on the lawn,

returns the nutrients in the

cuttings to the plants and also

protects the ground from

drying out.

Time and money is saved for

fertiliser and sprinkling.

Mowing on slopes

In order to ensure an ade-

quate oil supply for the

4-stroke engine, the lawn

mower must not be used on

inclines of more than 25°.

A slope inclination of 25°

corresponds to a vertical

height increase of 46.6 cm for

a 100 cm horizontal surface.

Mulching procedure

MB 450 M, MB 455 M

Cutting height 4-7 should

be selected for mulching,

as this is the most suitable

range for shredding the

grass.

It is important to select the

correct operating speed and

height for mulching to allow

the multi-blade to achieve

optimal grass shredding and

a good cutting pattern.

Mulching should not be

performed when the grass is

too high or wet.

Motorstop lever

MB 400, MB 450/ M,

MB 455 E/ M/ C

To stop the engine,

release

C= motorstop lever; the

engine and the mowing

blade come to a complete

standstill after a short

run-down time.

The model MB 455 BC is

equipped with a blade brake

clutch (BBC).

The blade is switched

on when the engine is

running by pressing

C= blade stop lever and then

pulling

A= blade clutch lever in the

direction of the handle-

bar.

When the blade stop

lever is released, the

blade comes to a

standstill in less than

3 seconds and the blade

clutch lever returns to the

initial position.

The engine continues to

run.

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Viking MB 455 M Manual

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