Stihl RM 248 User Manual

0478-111-9647-A
34
English 4 Safety Precautions
– If mowing and the mown grass is to be ejected to the rear:
the grass catcher box is detached and the discharge flap
is closed.
– The blade is correctly attached.
– Genuine STIHL accessories for this lawn mower are
attached.
– The accessories are correctly attached.
– Spring-loaded mechanisms are undamaged and working.
– The engine stops when the control bar for mowing is
released.
WARNING
￭ If not in safe condition, components may no longer
operate correctly, safety devices may be disabled and fuel
may leak. This may result in serous or fatal injury to
people.
► Do not use a damaged lawn mower.
► If there is petrol leaking from the lawn mower: do not
use the lawn mower and consult a STIHL specialist
dealer.
► Close the fuel tank cap.
► If there is engine oil leaking from the lawn mower: do not
use the lawn mower and consult a STIHL specialist
dealer.
► Close the engine oil cap.
► If the lawn mower is dirty: clean the lawn mower.
► Do not tamper with the lawn mower and its safety
systems.
► Tampering with the lawn mower which increases the
power output or the engine speed is forbidden.
► If the controls are not working: do not use the lawn
mower.
► Spring-loaded mechanisms may release stored energy.
► If mowing and the mown grass is to be collected in the
grass catcher box: attach the grass catcher box as
described in this instruction manual.
► Attach genuine STIHL accessories for this lawn mower.
► Attach the blade as described in this instruction manual.
► Attach accessories as described in this instruction
manual or in the instruction manual for the accessories.
► Do not insert objects into the apertures in the lawn
mower.
► Replace worn or damaged warning signs.
► If anything is unclear: consult a STIHL specialist dealer.
4.6.2 Blade
The blade is in safe condition when the following conditions
are met:
– The blade and attachments are undamaged.
– The blade is not deformed.
– The blade is correctly attached.
– The blade is correctly sharpened.
– The blade is burr-free.
– The blade is correctly balanced.
– The minimum thickness and minimum width of the blade
are not fallen below, @ 19.2.
– The sharpening angle is observed, @ 19.2.
WARNING
￭ In unsafe condition, blade parts may come loose and be
expelled. This may result in serious injury to people.
► Use an undamaged blade and attachments.
► Attach the blade correctly.
► Sharpen the blade correctly.
► If the minimum thickness or minimum width is fallen
below: replace the blade.
► Have the blade balanced by a STIHL specialist dealer.
► If anything is unclear: consult a STIHL specialist dealer.

Stihl RM 248 Specifications

General

Type	Push lawn mower
Cutting width	460 mm
Grass catcher	Yes
Product color	Black, Orange
Uncertainty K	2 m/s²
Housing material	Steel
Number of wheels	4 wheel(s)
Rotational speed	2900 RPM
Maximum lawn area	1200 m²
Mulching function	-
Sound power level	96 dB
Vibration emission	4 m/s²
Engine displacement	139 cm³
Sound pressure level	83 dB
Front wheels diameter	- mm
Maximum cutting height	75 mm
Minimum cutting height	25 mm
Grass collecting volume	55 L
Power source	Gasoline

Weight and Dimensions

Weight	26000 g