Condition Cause Remedy
The chain is over-ten‐
sioned.
► Tension chain properly.
Chainsaw is not
being used properly.
► Have correct use explained, then practice.
18.2 Clearing the Combustion
Chamber
► Engage the chain brake.
► Rotate the shroud fasteners (1) a quarter turn
counterclockwise.
► Remove the shroud (2).
► Pull off the spark plug boot (3).
► Unscrew the spark plug.
► Dry the spark plug.
WARNING
■ Unconfined sparks may occur if the starter grip
is pulled after the spark plug boot has been
removed. Sparks may cause a fire or an
explosion in an easily combustible or explo‐
sive environment. This can result in serious or
fatal injuries and damage to property.
►
Move the Master Control lever to position
and hold it there before pulling the starter
grip.
►
Move the Master Control lever to position
and hold it there.
► Pull the starter grip (3) and guide it back sev‐
eral times.
The combustion chamber is cleared.
► Insert and tighten down the spark plug.
► Connect the spark plug boot (3) and press it
down firmly.
► Place the shroud (2) in position.
► Rotate the shroud fasteners (1) clockwise until
you hear a click.
The shroud fasteners are locked.
19 Specifications
19.1 STIHL MS 462 C-M R Chain‐
saw
–
Displacement: 72.2 cc
–
Engine power to ISO 7293: 4.4 kW (6 bhp)
–
Idle speed to ISO 11681: 2,800 ± 50 rpm
–
Approved spark plug: NGK CMR6H from
STIHL
–
Electrode gap: 0.5 mm
–
Dry weight without guide bar and chain 6.5 kg
–
Max. fuel tank capacity: 720 cc (0.72 l)
–
Max. oil tank capacity: 340 cc (0.34 l)
19.2 Chain Sprockets and Chain
Speeds
The following chain sprockets may be used:
7-tooth for 3/8"
•
Maximum chain speed according to
ISO 11681: 28.9 m/s
•
Chain speed at maximum power: 21.7 m/s
19.3 Minimum Groove Depth of
Guide Bars
The minimum groove depth depends on the pitch
of the guide bar.
–
3/8" 6 mm
19.4 Noise and Vibration Data
–
Sound pressure level L
p
measured according
to ISO 22868: 108 dB(A) K-value (uncertainty)
for noise pressure level is 2 dB(A).
–
Sound power level L
w
measured according to
ISO 22868: 119 dB(A) K-value (uncertainty)
for sound power level is 2 dB(A).
–
Vibration level a
hv
measured according to
ISO 22867:
•
Front handle (handlebar): 3.3 m/s² K-value
(uncertainty) for vibration level is 2 m/s².
•
Rear handle: 2.7 m/s² K-value (uncertainty)
for vibration level is 2 m/s².
For further details on compliance with Vibration
Directive 2002/44/EC visit www.stihl.com/vib
English 19 Specifications
24 0458-787-0121-B. VA0.M20.