18 Troubleshooting
18.1
Remedying Lawn Mower Faults
Fault
Cause
Remedy
Engine cannot
be started.
Control bar for mowing is not
pressed.
► Start engine as described in this instruction
manual.
Fuel tank is empty.
► Refuel lawn mower.
Fuel line is blocked.
► Consult a STIHL specialist dealer.
Inferior, dirty or old fuel in the
tank.
► Use fresh, good-quality unleaded petrol.
Air filter is dirty.
► Consult a STIHL specialist dealer.
Spark plug socket is detached
from spark plug or ignition lead
is not properly fastened to
socket.
► Connect spark plug socket.
► Check connection between ignition lead and plug.
Spark plug is dirty, damaged or
electrode gap is incorrect.
► Clean or replace spark plug.
► Adjust electrode gap.
Resistance at the blade is too
great.
► Set a higher cutting height.
► Start engine in lower grass.
Engine diffi‐
cult to start or
engine power
deteriorating.
Lawn mower housing is
blocked.
Clean lawn mower.
Cutting height is set too low or
rate of feed is too high.
Adapt cutting height or mow more slowly.
Water in fuel tank and carburet‐
tor or carburettor is blocked.
Empty fuel tank, clean fuel line and carburettor.
Fuel tank is contaminated.
Consult a STIHL specialist dealer.
Air filter is dirty.
Consult a STIHL specialist dealer.
Spark plug is dirty.
Clean or replace spark plug.
Engine over‐
heating.
Engine oil level is too low.
Add or change engine oil as described in the engine
instruction manual.
Cooling ribs are dirty.
Clean lawn mower.
Lawn mower
vibrates
excessively.
Blade is damaged.
Replace blade.
Blade is not correctly attached. Attach blade.
Grass is not
being cut
cleanly.
Blade is blunt or worn.
Sharpen or replace blade.
19 Specifications
19.1
STIHL RM 4.0 RT Lawn Mower
–
Engine type: Kohler HD675
–
Displacement: 149 cm³
–
Power: 2.2 KW (3.0 hp) at 2800 rpm
–
Speed: 2800 rpm
–
Maximum fuel tank capacity: 1400 cm³ (1.4 l)
–
Weight: 35 kg
–
Cutting width: 53 cm
19.2
Blade
–
Minimum thickness a: 2.5 mm
–
Minimum width b: 55 mm
–
Sharpening angle: 30°
19.3
Sound Values and Vibration
Values
The K value for the sound pressure level is
2 dB(A). The K value for the sound power level is
2.2 dB(A). The K value for the vibration values is
1.60 m/s².
–
Sound pressure level L
pA
measured in accord‐
ance with 2006/42/EC: 79 dB(A)
English
18 Troubleshooting
32
0478-111-9655-A
Содержание RM 4.0 RT
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