Electric Motor And Wheels; Battery; Charger; Checking Blade Wear - Stihl RMA 339 Instruction Manual

● If necessary, use a special cleaner
(e.g. STIHL special cleaner).

13.3 Electric motor and wheels

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

13.4 Battery

Maintenance interval:
Before each use
● Clean the battery with a damp cloth.
● 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
● Remove mains plug from socket.
● Clean the charger with a damp cloth.
● Clean the electric contacts in the
charger with a paintbrush or a soft
brush.
● Observe the instructions in the charger
instruction manual.
0478 131 8327 B - EN

13.6 Checking blade wear

Maintenance interval:
Before each use
Risk of injury!
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 average. A
worn blade may break off and
cause serious injuries. The
instructions for blade maintenance
must therefore always be observed.
● Set the lawn mower onto its back in the
cleaning position. ( 13.2)
● Clean mowing blade (1).
● Use a slide calliper to measure the
blade thickness A at 5 points at least.
In particular, minimum thickness must
also be ensured in the area of the blade
wings.
● Check the blade width B in the area
marked in grey X at 3 points at least
using a slide calliper.
Wear limits:
Blade thickness A: 1,6 mm
Blade width B: 56 mm
The blade must be replaced
– if it is damaged (notches, cracks),
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