General; Cleaning The Machine; Electric Motor And Wheels; Upper Handlebar Me - Viking ME 339 Gebrauchsanleitung

12. Maintenance

12.1 General

Risk of injury!
Observe the safety instructions in
the section "For your safety" (
Annual service by the specialist dealer:
The lawn mower should be inspected once
annually by a specialist dealer. VIKING
recommends VIKING specialist dealers.

12.2 Cleaning the machine

Maintenance interval:
After each use
● Detach grass catcher box (
Risk of injury:
Before tipping up the mower, place
it on firm, level and flat ground. The
machine may tip over when working
on it in the cleaning position.
Always stand to the side of the
machine. Never work in front of or
behind the mower.
Cleaning position ME 339 C:
● Fold down mono handlebar (
● Lift discharge flap (1), tilt mower
upwards and set down on handlebar
console (2).
● Leave handlebar (3) resting on the
ground and fasten in this position with
quick-clamping device (4).
0478 121 9917 C - EN
All manuals and user guides at all-guides.com
Cleaning position ME 339:
● Fold down the dual handlebar (
● Tilt lawn mower upwards and set down
on lower handlebars (5).
Notes on cleaning:
Clean the machine thoroughly each time it
has been used. Care of the machine will
protect it against damage and extend its
4.).
service life.
Remove dirt from the cooling air guide
(inlet slots) between the motor cover and
the lower housing to ensure that the motor
is adequately cooled.
Clean the mowing blade.
Clean the underside of the mower with
water and a brush. Detach accumulated
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cutting deposits in the housing and in the
ejection chute beforehand using a stick.
8.3).
Never spray water onto motor
components, seals, bearing points or
electrical parts such as switches. This
would result in expensive repairs.
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).

12.3 Electric motor and wheels

8.1).
The electric motor is maintenance-free.
The wheel bearings are maintenance-free.

12.4 Upper handlebar ME 339

8.2).
Maintenance interval:
Before each use
The upper handlebar is coated with a
insulating layer. Should this layer become
damaged, the upper handlebar must be
replaced.

12.5 Mowing blade maintenance

Maintenance interval:
Before each use
● Tilt mower upwards into cleaning
position ( 12.2).
● Clean mowing blade (1) and check it for
damage (notches or cracks) and wear;
replace if necessary.
● Use a slide calliper (2) to measure
blade thickness at 5 points at least. In
particular, minimum thickness must
also be ensured in the area of the blade
wings.
● Place a ruler (3) against the front blade
edge and measure permissible
grinding.
Wear limits:
The blade thickness must be at least
1.6 mm at any point.
The cutting edges may not be ground back
by more than 5 mm during sharpening.
If the supplied standard blade is not
installed in the lawn mower, but e.g. the
mulching blade, which is available as a
special accessory, different wear limits
apply (see instruction manual Kit 339).
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