Stihl MSE 250 C Instruction Manual - Page 35

Overload Cutout, Operating Instructions

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Overload Cutout The overload cutout interrupts the power supply to the saw in the case of mechanical overload due to, e.g. - excessive feed force - "lugging down" the motor - pinching the saw chain in the cut If the overload cutout has interrupted the power supply: N Pull the guide bar out of the cut. N If necessary, disengage the chain brake - see "Chain Brake". N Wait for the overload cutout to cool down. 1 N Depress the reset button (1) as far as stop - if the motor does not run when you switch on, the overload cutout has not yet cooled down sufficiently - wait a while and then depress the reset button again as far as stop. When the motor restarts: N Run the motor off-load for about 15 seconds. This cools the motor and helps prevent the overload cutout from tripping again. 9913BA010 KN Operating Instructions During operation N Check level in chain oil tank. N Top up with chain oil when the "min" mark is reached, or earlier - see "Filling the Chain Oil Tank". Check chain tension frequently A new chain has to be retensioned more often than one that has been in use for some time. Chain cold Tension is correct when the chain fits snugly against the underside of the bar and can still be pulled along the bar by hand. Retension if necessary - see "Tensioning the Saw Chain". Chain at operating temperature The chain stretches and begins to sag. The drive links must not come out of the bar groove - the chain may otherwise jump off the bar. Retension the chain - see "Tensioning the Saw Chain". NOTICE The chain contracts as it cools down. If it is not slackened off, it can damage the drive shaft and bearings. After finishing work English N Disconnect the plug from the wall outlet. N Slacken off the chain if you have retensioned it at operating temperature during cutting work. NOTICE Always slacken off the chain after finishing work. The chain contracts as it cools down. If it is not slackened off, it can damage the drive shaft and bearings. Storing for a long period See chapter on "Storing the Machine" MSE 250 C 33

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MSE 250 C
English
33
The overload cutout interrupts the power
supply to the saw in the case of
mechanical overload due to, e.g.
–
excessive feed force
–
"lugging down" the motor
–
pinching the saw chain in the cut
If the overload cutout has interrupted the
power supply:
N
Pull the guide bar out of the cut.
N
If necessary, disengage the chain
brake – see "Chain Brake".
N
Wait for the overload cutout to cool
down.
N
Depress the reset button (1) as far
as stop –
if the motor does not run
when you switch on, the overload
cutout has not yet cooled down
sufficiently – wait a while and then
depress the reset button again as
far as stop.
When the motor restarts:
N
Run the motor off-load for about
15 seconds. This cools the motor
and helps prevent the overload
cutout from tripping again.
During operation
N
Check level in chain oil tank.
N
Top up with chain oil when the "min"
mark is reached, or earlier – see
"Filling the Chain Oil Tank".
Check chain tension frequently
A new chain has to be retensioned more
often than one that has been in use for
some time.
Chain cold
Tension is correct when the chain fits
snugly against the underside of the bar
and can still be pulled along the bar by
hand. Retension if necessary – see
"Tensioning the Saw Chain".
Chain at operating temperature
The chain stretches and begins to sag.
The drive links must not come out of the
bar groove – the chain may otherwise
jump off the bar. Retension the chain –
see "Tensioning the Saw Chain".
NOTICE
The chain contracts as it cools down. If it
is not slackened off, it can damage the
drive shaft and bearings.
After finishing work
N
Disconnect the plug from the wall
outlet.
N
Slacken off the chain if you have
retensioned it at operating
temperature during cutting work.
NOTICE
Always slacken off the chain after
finishing work. The chain contracts as it
cools down. If it is not slackened off, it
can damage the drive shaft and
bearings.
Storing for a long period
See chapter on "Storing the Machine"
Overload Cutout
1
9913BA010 KN
Operating Instructions