Maintenance; Cleaning The Machine; Wheels; Engine - Viking MB 756 YS Instruction Manual

11. Maintenance

Risk of injury!
Carefully read the section "For your
safety" ( 4.), particularly the
subsection "Maintenance and
repairs" ( 4.7), and follow all
safety instructions exactly before
performing any maintenance or
cleaning operations on the
machine.
Detach the spark plug
socket before performing
any maintenance or
cleaning operations.

11.1 Cleaning the machine

Maintenance interval:
After each use
Care of the machine will protect it against
damage and extend its service life.
Never spray water (high-pressure cleaner)
onto engine components, seals, electrical
parts or bearing points. This may result in
damage and expensive repairs.
Do not use aggressive cleaning agents.
These cleaners can damage plastics and
metals, impairing the safe operation of
your VIKING machine.
If you are unable to remove the dirt with
water using a brush or a cloth, VIKING
recommends the use of a special cleaner
(e.g. STIHL special cleaner).
Detach accumulated cutting deposits in
the housing and in the ejection chute
beforehand using a stick.
48
Avoid damage to the machine!
Clean the housing, all covers and
the area around the engine as well
as the mowing blade with particular
care.
Cleaning position:
● Park the machine on level, flat and solid
ground.
● Remove the grass catcher bag. (
● Close the tank ventilation screw.
( 7.5)
● Set the highest cutting height at the left
and right rear wheels. (
● Remove screw (1) together with
washer (2).
● Lift handlebar until recess (3) is above
bore (4) in the housing.
● Install screw (1) with washer (2) firmly
21
enough that the handlebar is securely
fixed in the service position.
● Lift up the machine at the front, open
the discharge flap and fold down the
handlebar to the rear. Check that the
machine is stable.
After cleaning, set the machine on all four
wheels, return the handlebar to the
working position and set the desired
cutting height.

11.2 Wheels

The wheel bearings are maintenance-free.

11.3 Engine

Maintenance interval:
See engine instruction manual
To achieve a long service life, it is always
particularly important to maintain a
sufficient level of oil and to change the oil
and air filter regularly, as well as to
observe the recommended oil change
7.7)
intervals.
Information regarding engine oil and oil
capacity can also be found in the engine
instruction manual.
7.3)
The cooling ribs must always be kept clean
to ensure that the engine is adequately
cooled.

11.4 Gearbox

MB 756 YS, MB 756 YC:
Maintenance interval:
Every 1000 operating hours/
at least once a year
The hydrostatic gearbox must only be
maintained by trained personnel. VIKING
recommends VIKING specialist dealers.
MB 756 GS:
The 3-speed gearbox is maintenance-free.

11.5 Blade brake clutch maintenance

Maintenance interval:
Once a year
The blade brake clutch is subject to natural
wear.
It may only be maintained by trained
personnel. VIKING recommends VIKING
specialist dealers.
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