Laski TRENCHER TR 120H, Operating Instructions Manual

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Trencher TR 120 H
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displacement of the bolt in the slot.
- Optimal belt tension/slack at finger pressure (50 N) is 10 mm in the middle of
the belt length.
- Having reached the recommended belt slack value, retighten the locking nut
again.
Belt creeping, or excessive belt tension, may bring considerable impact on service
life of the belt.
Maintenance of Engine
See a separate manual for the tracked undercarriage.
Maintenance Intervals
Every 8 – 15 hours,
respectively daily checks
before starting - Check up engine / hydraulic oil level.
- Check up engine air intake.
- Check up cooling air intake.
- Remove contingent debris and oily spots on the
machine.
- Make sure that all the tips and retaining bolts on
the chain bar are tight and in good condition.
- Remove contingent debris on the oil cooler.
Every 50 hours
- Check up tightening of all bolted joints.
- Check up the rubber tracks for correct tension
and contingent damage.
- Check up tension and condition of the belt
between the engine and its cooling fan.
- Clean up cyclone separator.
- Clean up the cooling fan, vanes and oil cooler.
Every 250 hours
- Check up tightening of all bolted joints.
- Check up and clean the primary air filter and
replace its filter element as needed.
- Change engine oil and oil filter element.
- Check up the air filter indicator for proper