Viking MB 756 GS, Instruction Manual

Page: 48 / 278

0478 111 9925 E - EN
46
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. (
Ö 4.)
1 0. 1 Starting the engine
● Check the oil and fuel levels.
(
Ö 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).
1 0.2 Engaging the mowing blade
● 1 Press blade stop lever (1) to the
handlebar and hold.
● 2 Pull blade clutch lever (2) back to
the stop and allow to engage.
● Keep blade stop lever (1) pressed when
working.
1 0.3 Disengaging the mowing
blade
● 1 Release blade stop lever (1).
The blade clutch lever (2) is released and
returns automatically to its initial position.
The mowing blade is disengaged and
braked, the engine continues to run.
1 0.4 Checking the blade brake clutch
(BBC)
Operation of the blade brake clutch must
be checked
three times before starting
work.
● Engage the mowing blade with the
engine running. (
Ö
10.2)
A running mowing blade generates a
clearly audible wind noise.
● Disengage the mowing blade (release
the blade stop lever). (
Ö 10.3)
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 must not exceed 3 seconds.
No wind noise must be audible when
the blade is stopped.
Measuring the run-on time
The run-on time corresponds to the
duration of the wind noise following
disengagement. This can be measured
using a stopwatch.
1 0. Operating the machine
Risk of injury!
Carefully read and observe the “For
your safety” section before
operating the machine. (
Ö 4.)
1 2
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.
Avoid damage to the machine!
Do not engage the mowing blade in
tall grass and only engage it at the
maximum engine speed.
Always engage it quickly in order to
prevent unnecessary wear to the
blade clutch.
1 3
1 4
1 5