1
0478 105 9821 K - EN
SV
NO EN
DA
FIPL
HU
Dear Customer,
Thank you for choosing a
VIKING quality product.
This product has been pro-
duced using state-of-the-art
production methods and
extensive quality assurance
procedures, because our goal
is only achieved if you, the
customer, are satisfied with
your appliance.
If you have any questions
concerning your appliance,
please contact your dealer or
our sales department directly.
I hope that your VIKING
appliance will give you great
enjoyment.
Nikolas Stihl
Manager
Table of contents
Notes on the instruction manual 2
Lawn mower with blade brake
clutch, BBC 2
Appliance overview 3
For your Safety 3
Preparatory measures 3
Mowing procedure 3
Maintenance and repairs 4
Petrol is poisonous and extremely
inflammable 5
Description of symbols 5
Standard equipment 6
Preparing the lawn mower for operation 6
Assembling the handlebar 6
Attaching the starter cable 6
Assembling the grass catcher bag 6
Attaching and detaching the grass
catcher bag 6
Fuel and engine oil 7
Adjusting the cutting height 7
Installation of the mulch insert
MB 450 M, MB 455 M 7
Removing the mulch insert
MB 450 M, MB 455 M 7
Notes on mowing 8
Mowing on slopes 8
Mulching function MB 450 M, MB 455 M 8
Mulching procedure MB 450 M, MB 455 M 8
Motorstop lever 8
Blade brake clutch, (BBC) 8
Applications 9
Initial operation of lawn mower 9
Starting the engine MB 400,
MB 450/ M, MB 455 M/ E/ C 9
Stopping the engine MB 400,
MB 450/ M, MB 455 M/ E/ C 10
Checking the BBC 10
Starting engine/ blade, MB 455 BC 10
Stopping blade/ engine MB 455 BC 11
Single-speed wheel drive
MB 455 E/ M/ C/ BC 11
Emptying the grass catcher bag 11
Maintenance 11
Cleaning the appliance 11
Combustion engine 12
Wheels and wheel drive 12
Adjusting the drive cable 12
Mowing blade maintenance 12
Removing the mowing blade 12
Sharpening the mowing blade 13
Installing the mowing blade 13
Maintainance of the blade brake clutch 13
Electric start model MB 455 E 13
Winter break 13
Electric starting device model MB 455 E 14
Storage 14
Environmental protection 14
Standard spare parts 14
Available accessories 14
Notes on maintenance and care 14
CE - Manufacturer’s
declaration of conformity 15
Technical specifications 16
Troubleshooting 18
VIKING is continually striving to further develop
its range of products; we therefore reserve the
right to make alterations to the form, technical
specifications and equipment level of our
standard equipment.
The information and illustrations in this manual
are therefore subject to alterations.