19 Specifications
Fault
Cause
Engine diffi‐
Lawn mower housing is
cult to start or
blocked.
engine power
deteriorating.
Cutting height is set too low or
rate of feed is too high.
Water in fuel tank and carburet‐
tor or carburettor is blocked.
Fuel tank is contaminated.
Air filter is dirty.
Spark plug is dirty.
Engine over‐
Engine oil level is too low.
heating.
Cooling ribs are dirty.
Lawn mower
Blade is damaged.
vibrates
excessively.
Blade is not correctly attached.
Grass is not
Blade is blunt or worn.
being cut
cleanly.
19 Specifications
19.1
STIHL RM 443.1 T,
RM 448.1 TX Lawn Mower
– Engine type:
– RM 443.1 T: STIHL EVC 200 C
– RM 448.1 TX: STIHL EVC 200 C
– Displacement:
– RM 443.1 T: 139 cm³
– RM 448.1 TX: 139 cm³
– Power:
– RM 443.1 T: 2.1 kW (2.8 hp) at 2800 rpm
– RM 448.1 TX: 2.1 kW (2.8 hp) at 2800 rpm
– Speed:
– RM 443.1 T: 2800 rpm
– RM 448.1 TX: 2800 rpm
– Maximum fuel tank capacity: 900 cm³ (0.9 l)
– Weight:
– RM 443.1 T: 27 kg
– RM 448.1 TX: 27 kg
– Maximum grass catcher box capacity: 55 l
– Cutting width:
– RM 443.1 T: 41 cm
– RM 448.1 TX: 46 cm
19.2
Blade
– Minimum thickness a: 2.0 mm
– Minimum width b: 39 mm
– Sharpening angle c: 30°
0478-111-9951-B
Remedy
Clean lawn mower.
Adapt cutting height or mow more slowly.
Empty fuel tank, clean fuel line and carburettor.
Consult a STIHL specialist dealer.
Consult a STIHL specialist dealer.
Clean or replace spark plug.
Add or change engine oil as described in the engine
instruction manual.
Clean lawn mower.
Replace blade.
Attach blade.
Sharpen or replace blade.
19.3
Sound Values and Vibration
Values
RM 443.1 T
The K value for the sound pressure level is
2 dB(A). The K value for the sound power level is
1.2 dB(A). The K value for the vibration value is
2.20 m/s².
– Sound pressure level L
ance with EN ISO 5395-2: 80 dB(A)
– Guaranteed sound power level L
ured in accordance with 2000/14/
EC / S.I. 2001/1701: 93 dB(A)
– Vibration value a
with EN 12096, EN 20643, EN ISO 5395-2,
handlebar: 4.40 m/s²
RM 448.1 TX
The K value for the sound pressure level is
2 dB(A). The K value for the sound power level is
1.0 dB(A). The K value for the vibration value is
2.50 m/s².
– Sound pressure level L
ance with EN ISO 5395-2: 82 dB(A)
– Guaranteed sound power level L
ured in accordance with 2000/14/
EC / S.I. 2001/1701: 95 dB(A)
– Vibration value a
with EN 12096, EN 20643, EN ISO 5395-2,
handlebar: 5.00 m/s²
measured in accord‐
pA
meas‐
WAd
measured in accordance
hv
measured in accord‐
pA
meas‐
WAd
measured in accordance
hv
English
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