Cleaning The Machine; Adjusting The Self-Propulsion Cable; Checking Blade Wear - Viking MB 545 T Gebrauchsanleitung

Annual service by the specialist dealer:
The lawn mower should be inspected once
annually by a specialist dealer. VIKING
recommends VIKING specialist dealers.

14.2 Cleaning the machine

Maintenance interval:
After each use
Care of the machine will protect it against
damage and extend its service life.
Risk of injury!
Stop the engine, detach the spark
plug socket, remove the battery
(with MB 545 VE) and allow the
machine to cool.
Empty the fuel tank (run empty)
before placing the machine in the
cleaning position.
The machine is only safely in the
cleaning position when the
discharge flap is open.
● Select the highest cutting level. (
● Detach the grass catcher box. (
● Set down the upper handlebar
rearwards.
● Open the discharge flap and hold it
open.
● Lift up the machine at the front at the
carrying handle and place in the
cleaning position as shown.
Notes on cleaning:
● Clean off dirt using little water, with a
brush or with a cloth. In particular, also
clean the mowing blade. Never spray
water onto engine components, seals
or bearing points.
● First, remove accumulated clipping
deposits using a stick.
0478 111 9930 A - EN
● If necessary, use a special cleaner (e.g.
STIHL special cleaner).
14.3 Adjusting the self-
propulsion cable
Maintenance interval:
As required
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The tension of the cable is adjusted
correctly at the factory.
Adjustment of the cable is necessary
– if, after a lengthy period of use, self-
propulsion does not engage properly
when the self-propulsion lever is
actuated.
– if self-propulsion is permanently
engaged. This means that the lawn
mower automatically begins to move
when the recoil starter rope is pulled,
despite the self-propulsion lever not
being actuated.
Risk of injury!
9.5) The self-propulsion cable must be
correctly adjusted before the
9.8)
machine is operated. If necessary,
consult a specialist dealer. VIKING
recommends VIKING specialist
dealers.
Checking the cable tension:
● Actuate the self-propulsion lever while
pulling the lawn mower backward.
The drive wheels must lock after
approx. one third of the lever travel.
Adjusting the cable:
● The cable tension is increased by
turning adjustment screw (1) on the left
on the upper handlebar in the "+"
direction and reduced by turning the
screw in the "–" direction.

14.4 Checking blade wear

Maintenance interval:
Before each use
Risk of injury!
27
Blades are subjected to differing
degrees of wear depending on the
location and duration of use. If you
use the machine on sandy ground
or use it frequently under dry
conditions, the blade will be
subjected to greater loads and will
wear more quickly than the
average. A worn blade may break
off and cause serious injuries. The
instructions for blade maintenance
must therefore always be observed.
● Tilt the mower upwards into the
cleaning position. (
● Clean mowing blade (1).
● Use a slide calliper to measure blade
thickness A at 5 points at least. In
particular, minimum thickness must
also be ensured in the area of the blade
wings.
● Place a ruler (1) against the respective
blade edge as illustrated and measure
permissible grinding B or minimum
width C.
● MB 545 VM: Check wear limits on the
lower and upper blades.
The blade must be replaced,
– if it is damaged (notches, cracks),
– if the measured values are achieved at
one or more points or are outside the
permissible limits.
1 Wear limits for standard blade:
Blade thickness A: > 2 mm
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14.2)
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