Repairing; Troubleshooting - Stihl Rm 3.1 Rt Gebrauchsanleitung

English
► Dispose of the screw (3) and the washer (4).
Use a new screw and washer for installing the
cutting blade (1).
16.2.2 Installing the blade
► Shut off the engine.
► Pull off the spark plug boot.
► Stand the lawn mower upright,
► Place the new washer (1) on the new
screw (2).
► Apply Loctite 243 threadlocking to the thread
of the screw (2).
► Position the blade (3) so that the raised areas
on the contact surface engage in the notches
of the blade (3).
► Screw in the screw (2) together with the
washer (1).
► Chock the blade (3) with a piece of wood (4).
► Tighten the screw (2) to a torque of 60–65 Nm.
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.

18 Troubleshooting

18.1 Remedying Lawn Mower Faults
Fault Cause
Engine cannot Control bar for mowing is not
be started. pressed.
Fuel tank is empty.
Fuel line is blocked.
Inferior, dirty or old fuel in tank. ► Use fresh, good-quality unleaded petrol.
Air filter dirty.
Spark plug socket is detached
from spark plug or ignition lead
is not properly fastened to
socket.
Spark plug is dirty, damaged or
electrode gap is incorrect.
34
The current addresses of the specialist dealers
can be found under the respective STIHL country
representative at www.stihl.com .
■ The cutting edges of the blade are sharp. This
may result in the user cutting themselves.
15.1.
► Wear protective gloves made from resistant
► 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,
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
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.
► If warning signs are illegible or damaged: have
the warning signs replaced by a STIHL spe‐
cialist dealer.
Remedy
► Start engine as described in this instruction
manual.
► Refuel lawn mower.
► Consult a STIHL specialist dealer.
► Clean or replace air filter as described in engine
instruction manual.
► Connect spark plug socket.
► Check connection between ignition lead and plug.
► Clean or replace spark plug.
► Adjust electrode gap.
WARNING
material.
Repairing the Lawn Mower
17 Repairing
15.1.
19.2.
0478-111-9972-A