Stihl KombiTool HT-KM 4182, Instruction Manual

Page: 19 / 32

HT-KM
English
17
During Operation
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
gear shaft and bearings.
After Finishing Work
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 gear shaft and
bearings.
Storing for a long period
See chapter on "Storing the Machine"
N
Turn the bar over – every time you
sharpen the chain and every time
you replace the chain – this helps
avoid one-sided wear, especially at
the nose and underside of the bar
N
Regularly clean the oil inlet hole (1),
the oilway (2) and the bar
groove (3)
N
Measure the groove depth – with the
scale on the filing gauge (special
accessory) – in the area used most
for cutting
If groove depth is less than specified:
N
Replace the guide bar
Operating Instructions Taking Care of the Guide Bar
Chain type Chain pitch Minimum
groove depth
Picco 3/8" P 5.0 mm
Picco 1/4" P 4.0 mm
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3
2
1