English / USA
Taking Care of Guide Bar
After a long period of full-throttle
operation
:
Measure groove depth –
with scale on filing gauge – see
"Special Accessories" – in area
used most for cutting on Rollomatic
bars.
Allow engine to run for a while at idle
speed so that the heat in the engine can
be dissipated by flow of cooling air. This
protects engine-mounted components
(ignition, carburetor) from thermal
overload.
2
Chain type Chain pitch Minimum
groove depth
5.0 mm
After finishing work
Picco-Mini
3/8" P
:
Slacken off the chain if you have
retensioned it at operating
(0.20")
temperature during cutting work.
If groove depth is less than specified:
: Replace the guide bar.
The chain contracts as it cools down. If it
is not slackened off, it may damage the
crankshaft and bearings.
1
3
The drive link tangs will otherwise
scrape along the bottom of the groove –
the cutters and tie straps will not ride on
the rails.
Wait for engine to cool down. Drain the
fuel tank. Store the machine in a dry
place. Check tightness of nuts and
screws (not adjusting screws) at regular
intervals and retighten as necessary.
:
Turn the bar over –
every time you sharpen the chain –
and every time you replace the
chain – this avoids one-sided wear,
especiallly at nose and underside of
the bar.
Regularly clean
= oil inlet hole
= oil passage
= bar groove
1
2
3
28
HT 250
| Categories | Stihl Tiller Cultivator Manuals, Tiller Cultivator Manuals |
|---|---|
| Tags | STIHL HT 250 |
| Download File |
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| Language | English, Español |
| Product Brand | STIHL. Stihl Inc, USA - Corporate phone: (757) 486-9100. International Support Information: http://stihl.com Email: info@stihl.com, Tiller Cultivator |
| Document File Type | |
| Publisher | stihl.com |
| Wikipedia's Page | Stihl |
| Copyright | Attribution Non-commercial |
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