Oreck SF600 Owner's Manual page 11

When rubber fuel lines become old, they can split and dangerous fuel leaks can occur. Change
rubber parts if they split or every 3 years regardless of damage. At this time, also change
the fastening bands for the new parts.
Be sure to check that the bolts in the wheels and blades are tightly fastened.
When replacing the tines, also replace the attached nuts and bolts. There is a possibility of
accidents caused by worn or damaged parts. Never substitute nuts and bolts with those that
are not recommended.
Remove fuel when storing or transporting the machine. Accidents and damage can be caused
by fuel spills or expired fuel.
When storing the machine, place it on a flat surface away from sources of flame. Not taking
precautions can cause accidents and damage.
Before storing the machine, remove such foreign material as weeds and leaves. Clean away
any oil spills or fragments stained with oil.
Make sure that the engine has completely cooled before covering the machine with
a storage cover.
Depending on operating conditions, there may be occasions when incidents arise which are not
covered by the warnings in this manual. The operator should always use common sense and put
safety first when using this machine