Use the right petrol. Check with the owner how it should be refueled.
Oil is needed for the chain, and maybe also the engine, also check this with the owner.
Make sure that the chain isn't too tight against the sword, as it can create overheating.
If the chain starts to become dull, change it as a dull chain can create overheating.
Only use for trees and branches, nothing else.
Did this answer your question?