Applications; How Should Mulching Be Performed; Operating The Machine; Checking The Blade Brake Clutch - Viking MB 650 T Manuel D'utilisation

● The lawn mower must only be operated
by one person. Other persons must
keep out of the danger area. (
12.2 Lawn mower with lawn roller
The model MB 655 RS is equipped
with a two-part drive roller on the
rear axle.
This permits accurate mowing along lawn
edges or around plants. The grass is also
rolled in the direction of travel, creating a
characteristic striped lawn pattern.

12.3 Applications

The lawn mower is equipped with a multi-
blade and can be used as a mulching
mower or rear discharge mower as well
as a grass collector.
● To use the machine as a mulching
mower, install the mulch insert. (
● For use as a rear discharge mower or
grass collector (with grass catcher box),
remove the mulch insert from the
machine. ( 8.5)
12.4 How should mulching be
performed?
Mulching is only possible with the models
MB 650 T, MB 650 V, MB 650 VE,
MB 650 VS, MB 655 V, MB 655 VS,
MB 655 YS.
A cutting height between 4 and 7 should
be selected for mulching, as this is the
most suitable height for shredding the
grass.
0478 111 9931 D - EN
If the cutting height is too low, the mower
housing may become clogged, resulting in
5.) blockage of the mowing blade
It is important to select the correct
operating speed and cutting height for
mulching to allow the mowing blade to
achieve optimal grass shredding and a
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good cutting pattern.
In high grass, it is advisable to work in
several stages and in the higher cutting
height settings.
Mulching should not be performed when
the grass is too high or wet.

13. Operating the machine

13.1 Checking the blade brake clutch

Operation of the blade brake clutch must
be checked three times before starting
8.5)
work.
● Engage the mowing blade with the
engine running. (
A running mowing blade generates a
clearly audible wind noise.
● Disengage the mowing blade (release
the handlebar). (
The blade brake clutch disengages the
mowing blade from the engine drive
and brakes it. This procedure is
accompanied by stopping of the wind
noise and lasts a maximum of 3
seconds. No wind noise must be
audible when the blade is stopped. The
blade brake time can be measured
using a stopwatch.

13.2 Starting the engine

(MB 650 T, MB 650 V, MB 655 V)
13.6)
● Check the oil and fuel levels. (
● 1 Press motorstop lever (1) to the
13.7)
handlebar and hold.
● 2 Slowly pull out recoil starter rope (2)
to the point of compression resistance.
Then pull vigorously and quickly to
arm's length. Slowly return the recoil
starter rope (2) again so that it is rolled
up again.
● Repeat the procedure until the engine
starts.
Risk of injury!
Should the blade brake clutch not
work as described (e.g. longer
blade brake time than 3 seconds or
continuing audible wind noise when
the mowing blade is disengaged),
the machine must not be operated.
In this case, switch off the engine,
detach the spark plug socket and
have the necessary repairs
performed by a qualified technician.
VIKING recommends VIKING
specialist dealers.
Avoid damage to the machine!
Do not start the engine in tall grass.
Select a higher cutting height
setting if the engine is difficult to
start.
Thanks to the fixed throttle setting,
the engine always operates at the
optimum working speed after
starting.
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8.6)
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