Cleaning The Machine; Electric Motor And Wheels; Mowing Blade Maintenance - Viking MA 339 Manuel D'utilisation

13. Maintenance
13.1 General
Risk of injury!
Observe the safety instructions in
the section "For your safety" (
Remove the safety plug,
particularly before
performing any work on the lawn
mower ( 9.1).
Annual service by the specialist dealer:
The lawn mower should be inspected once
annually by a specialist dealer. VIKING
recommends VIKING specialist dealers.

13.2 Cleaning the machine

Maintenance interval:
After each use
● Remove battery ( 8.3).
● 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, MA 339 C:
● Fold down mono handlebar (
● Lift discharge flap (1), tilt mower
upwards and set down on handlebar
console (2).
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● Leave handlebar (3) resting on the
ground and fasten in this position with
quick-clamping device (4).
Cleaning position, MA 339:
● Fold down the dual handlebar (
● Tilt lawn mower upwards and set down
on lower handlebars (5).
Notes on cleaning:
4.).
Clean the machine thoroughly each time it
has been used. Care of the machine will
protect it against damage and extend its
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
cutting deposits in the housing and in the
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ejection chute beforehand using a stick.
Never spray water on motor components,
seals, bearing points or electrical
9.5).
components such as batteries or 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).

13.3 Electric motor and wheels

The electric motor is maintenance-free.
9.3).
The wheel bearings are maintenance-free.
13.4 Battery
Maintenance interval:
Before each use
9.4).
Visually check that the battery is
undamaged. Batteries with identifiable
damage (e.g. cracks or escaping fluid),
must not be used.
13.5 Charger
Maintenance interval:
Before each use
Check electric cable for damage and
ensure that cooling air slots are free of dirt.

13.6 Mowing blade maintenance

Maintenance interval:
Before each use
● Tilt mower upwards into cleaning
position ( 13.2).
● 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.
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