Stihl MS 441 C-MQ Manual De Instrucciones página 37

Standard STIHL Quickstop chain brake
Activating
When the hand guard is pushed
N
toward the bar nose by the left hand
or by inertia in certain kickback
situations.
The chain is brought to a standstill and
locked in position.
Disengaging
Pull the hand guard toward the front
N
handle.
NOTICE
Always disengage chain brake before
accelerating engine and before starting
cutting work. The only exception to this
rule is when you check operation of the
chain brake.
MS 441 C-MQ
High revs with the chain brake engaged
(chain locked) will quickly damage the
powerhead and chain drive (clutch,
chain brake).
The chain brake is designed to be
activated also by the inertia of the front
hand guard
If the forces are sufficiently high, the
hand guard is accelerated toward the
bar nose – even if your left hand is not
behind the hand guard, e.g. during a
felling cut. The chain brake will operate
correctly only if it has been properly
maintained and the hand guard has not
been modified in any way.
Check operation of STIHL Quickstop
Plus chain brake
Before starting work: Open the throttle
fully and then fully release the rear
handle. The chain must stop moving
within a second.
Check operation of STIHL Quickstop
chain brake
Before starting work: Run engine at idle
speed, engage the chain brake (push
hand guard toward bar nose). Open the
throttle wide for no more than 3 seconds.
The chain must not rotate. The hand
guard must be free from dirt and move
freely.
In case of any doubt about the above
functions, contact your STIHL dealer for
assistance.
Chain brake maintenance
The chain brake is subject to normal
wear and tear. It must therefore be
checked and serviced regularly by
trained personnel (e.g. a STIHL dealer)
at the following intervals:
Full-time usage: every 3 months
Part-time usage: every 6 months
Occasional usage: every 12 months
English
35