Service And Maintenance - Viking MF 860 Gebrauchsanweisung

The engine may be very warm immedi-
ately after it is shut off. Do not touch the
silencer, cylinder or cooling fins. This
can cause burn injuries.
STEERING AID (MF 890 PRO)
Built-in function in order to facilitate steering. The
operator only has to turn the steering wheel gently.
A hydraulic torque amplifier creates the remaining
force.
As opposed to normal servo steering (e.g. in a car),
the steering aid has a limited capacity. This means
that it has some characteristics that might be con-
sidered negative:
- at a low engine rpm or in situations where extra
steering force is needed, steering can be consid-
ered to be "jumpy".
- the machine should always be moving when the
steering is used. Avoid turning the steering
wheel when the machine is standing completely
still and the accessory is in the lowered working
position.
The steering is adapted in order to produce better
results at a normal working speed. This produces
major benefits.
Even when the engine is not running, the steering
works. However, it is harder to turn in this case, if
the machine is to be manoeuvred manually.
DRIVING TIPS
Make sure that there is the correct quantity of oil in
the engine when driving on slopes (oil level on
"FULL").
Be careful when driving on slopes. No
sudden starting or stopping when mov-
ing up or down a slope. Never drive
across a slope. Move from the top down,
and from the bottom to the top.
The machine, equipped with original
accessories, may not be driven on slopes
greater than 10º in any direction.
Reduce the speed on slopes and when
making sharp turns to prevent the ma-
chine from tipping over or you losing
control of the machine.
Do not turn the steering wheel to full
lock when driving in top gear and at full
throttle. The machine can easily topple
over.
ENGLISH
Keep hands and fingers well away from
articulated steering joint and seat
bracket. Risk of crushing injuries. Nev-
er operate the machine without the en-
gine casing.

SERVICE AND MAINTENANCE

SERVICE PROGRAM
We recommend that an authorised workshop car-
ries out every service. This guarantees that the
work is performed by trained personnel and with
genuine spare parts.
PREPARATIONS
Unless otherwise stated, all service and mainte-
nance must be carried out on a stationary machine
when the engine is not running.
Prevent the machine from rolling by al-
ways applying the parking brake.
Prevent unintentional starting of the
engine by always stopping the engine,
disconnecting the spark plug cable
from the spark plug and earthing it.
Disconnect the negative cable from the
battery.
CLEANING
To reduce the risk of fire, keep the en-
gine, silencer, battery and fuel tank free
from grass, leaves and oil.
To reduce the risk of fire, regularly
check the machine for oil and/or fuel
leakage.
When washing the machine with water under high
pressure, do not point the jet directly at the trans-
mission.
Do not point jets of water directly at the engine.
Use a brush or compressed air in order to clean it.
ENGINE OIL
Change the oil for the first time after 5 hours run-
ning, and then after every 50 hours running or once
a season. Change oil when the engine is warm.
Always use a good grade of oil (service grade SF,
SG or SH).
Change the oil more often (after 25 hours of oper-
EN
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