Hyundai HYSG150 User Manual page 20

8.3.3. Take out the air filter element, wash in soapy water rinse in fresh water and
allow it to dry completely.
8.3.4. Put a small amount of clean engine oil on to foam air filter element, squeeze
out excess oil by hand.
8.3.5. Finally, put the filter element back into the filter housing, refit the filter cover
securely.
8.4. After 10 hours of use.
8.4.1. Change the engine oil.
8.4.2. Check the clutch.
8.4.3. Check and adjust all belts.
8.4.4. Check and tighten as required all nuts and bolts.
8.5. Cutting blade.
8.5.1. Among the most critical elements of the Stump grinder machine is the cutting
blade. It is also the most subject to damage and wear. In the course of cutting
stumps it not only makes contact with the wood, but also encounters
numerous assortments of abrasives and objects in the stump's environment,
such as dirt, stones, and occasionally a large rock or buried scrap. The loss of
and wear of cutting teeth can significantly impair the efficiency and
performance of the Stump Machine. Therefore, it is important to make
frequent observations of the condition of all of the cutting teeth and replace
or sharpen any damaged or worn blade sections. Read all of the following
instructions before beginning to change cutting blade sections.
8.6. Changing cutting blade sections.
STOP the engine and Read all the following instructions before beginning to change cutting blade
sections.
8.6.1. Clean all dirt from the cutting blade and mounting flanges.
8.6.2. Remove the two bolts holding cutting blade, (Be careful not to let a section
drop when they become loose).
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