Cleaning; Maintenance - Stihl RMA 248 Instruction Manual

16 Cleaning

► Store the lawn mower in accordance with the
following conditions:
– The lawn mower is out of reach of children.
– The lawn mower is clean and dry.
– The lawn mower cannot tip over.
– The lawn mower cannot roll away.
15.2 Storing the Battery
STIHL recommends that you store the battery
with a charge between 40% and 60% (2 LEDs
glow green).
► Check the following points when storing the
battery:
– Battery is out of the reach of children.
– Battery is clean and dry.
– Battery is in an enclosed location.
– Battery is stored separately from the mower
and charger.
– Battery is in non-conductive packaging.
– Battery is in a temperature range between
-10°C and +50°C.
16 Cleaning
16.1 Upending the Lawn Mower
► Switch the lawn mower off, pull out the activa‐
tion key and remove the battery.
► Place the lawn mower on a level surface.
► Detach the grass catcher box.
► Set the cutting height to the lowest setting,
12.2.
► Hold handlebar (1) and loosen star grip
nuts (2).
► Set down handlebar (1) to the rear.
► Open discharge flap (3) and hold it open.
► Upend the lawn mower.
16.2 Cleaning the Lawn Mower
► Switch the lawn mower off, pull out the activa‐
tion key and remove the battery.
► Clean the lawn mower with a damp cloth.
► Clean the discharge chute with a soft brush or
a damp cloth.
► Remove any foreign bodies from the battery
compartment and clean the battery compart‐
ment with a damp cloth.
0478-131-9961-C
► Clean the electric contacts in the battery com‐
partment with a paintbrush or a soft brush.
► Clean the ventilation slots with a paintbrush.
► Upend the lawn mower.
► Clean the area around the blade and the blade
with a stick, a soft brush or a damp cloth.
16.3 Cleaning the Battery
► Clean the battery with a damp cloth.

17 Maintenance

17.1 Removing and Attaching the
Blade
17.1.1 Removing the Blade
► Switch the lawn mower off, pull out the activa‐
tion key and remove the battery.
► Upend the lawn mower.
► Block blade (1) using a piece of wood (2).
► Unscrew screw (3) in the direction of the arrow
and remove together with washer (4).
► Remove blade (1).
► Discard screw (3) and washer (4).
Use a new screw and washer to attach
blade (1).
17.1.2 Attaching the Blade
► Switch the lawn mower off, pull out the activa‐
tion key and remove the battery.
► Upend the lawn mower.
► Place new washer (1) on new screw (2) with
the convex side facing outwards.
► Apply Loctite 243 thread locker to the thread
of screw (2).
► Position blade (3) so that the raised areas on
the contact area engage in the notches.
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