Murray 20-inch Lawn Mower User Manual


 
MAINTENANCE
19
F–040406L
Ground
Blade is balanced
when parallel to
the ground.
Screwdriver
Blade
File
Figure 14
5. Make sure the blade is balanced. Use a
screwdriver and hold the blade parallel to
the ground as shown. A blade that is bal-
anced will stay parallel to the ground. If the
blade is not balanced, the heavy end will
rotate toward the ground. Sharpen the
heavy end until the blade is balanced.
6. A new blade will cut better than a badly
worn blade. Every two years replace the
old blade with a factory replacement
blade.
CHECK THE LEVEL OF CUT
Test the unit in a small area. If the height of cut
is not level or if the cut grass is not discharged,
the cause can be: (1) the blade is bent or dam-
aged, (2) the blade is not sharp, (3) a worn
blade, (4) or a broken blade adapter. Before
you use the unit, correct the problem.
HOW TO PREPARE THE MOWER
FOR STORAGE
WARNING: Do not remove gaso-
line while inside a building, near
a fire, or while you smoke.
Gasoline fumes can cause an
explosion or a fire.
1. Drain the fuel tank.
2. Let the engine run until it is out of gasoline.
3. Drain the oil from the warm engine. Fill the
engine crankcase with new oil.
4. Remove the spark plug from the cylinder.
Pour one ounce of oil into the cylinder.
Slowly pull the recoil–start grip so that the
oil will protect the cylinder. Install a new
spark plug in the cylinder.
5. Clean the dirt and debris from the cylinder
cooling fins and the engine housing.
6. Clean the bottom of the mower housing.
7. Completely clean the mower to protect the
paint.
8. Put the unit in a building that has good
ventilation.