Stihl RM 248.3 User Manual

► Connect the spark plug socket.
NOTICE
■ Using a high-pressure cleaner or a water jet
for cleaning can damage the machine.
► Do not clean the machine with a high-pres‐
sure cleaner or a water jet.
16 Maintenance
16.1 Maintenance Intervals
Maintenance intervals are dependent on the
ambient conditions and the working conditions.
STIHL recommends the following maintenance
intervals:
Engine
► Maintain the engine as described in the engine
instruction manual.
Lawn mower
► Have the lawn mower inspected annually by a
STIHL specialist dealer.
16.2 Removing and Attaching the
Blade
16.2.1 Removing the Blade
► Stop the engine.
► Detach the spark plug socket.
► Upend the lawn mower.
► Block blade (1) using a piece of wood (2).
► Unscrew the screw with washer (3) in the
direction of the arrow and remove.
► Remove blade (1).
► Dispose of the screw with washer (3).
Use a new screw with washer to attach
blade (1).
► Connect the spark plug socket.
16.2.2 Attaching the Blade
► Stop the engine.
► Detach the spark plug socket.
► Upend the lawn mower.
► Apply Loctite 243 threadlocker to the thread of
the screw with washer (1).
► Position blade (2) so that the raised areas on
the contact area engage in the notches.
► Screw in the screw with washer (1).
► Block blade (2) using a piece of wood (3).
► Tighten screw with washer (1) to 60 Nm.
► Connect the spark plug socket.
16.3 Sharpening and Balancing the
Blade
Sharpening and balancing the blade correctly
requires a lot of practice.
STIHL recommends having the blade sharpened
and balanced by a STIHL specialist dealer.
The current addresses of the specialist dealers
can be found under the respective STIHL country
representative at www.stihl.com.
WARNING
■ The cutting edges of the blade are sharp. This
may result in the user cutting themselves.
► Wear protective gloves.
► Stop the engine.
► Detach the spark plug socket.
► Upend the lawn mower.
► Remove the blade.
► Sharpen the blade. Observe the sharpening
angle and cool the blade, 19.2.
Bluing of the blade during sharpening is not
permitted.
► Attach the blade.
► Connect the spark plug socket.
► If anything is unclear: consult a STIHL special‐
ist dealer.
17 Repairing
17.1 Repairing the Lawn Mower
The user should not repair the lawn mower or
blade themselves.
► If the lawn mower or blade is damaged: do not
use the lawn mower or blade and consult a
STIHL specialist dealer.
16 Maintenance English
0478-111-9800-B 35

Stihl RM 248.3 Specifications

General

Brand	Stihl
Model	RM 248.3
Category	Lawn Mower
Language	English