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MAG-8200 LAWNMOWER BLADE SHARPENER
SHARPENING A LAWN MOWER BLADE (1” wide WHEEL or 2” wide BELT)
Be sure to wear protective clothing while handling and sharpening lawn mower blades. Wear safety
glasses and protective gloves. Always deburr the underside of the blade, prior to sharpening the blade.
BLADE & SHARPENER PREPARATION
1. Clean the blade to its base material, using the MAG-12008 blade cleaner, or alternate cleaning
process. Inspect the blade for fractures. (
never weld mower blades
)
2.
Check the straightness with the gauge rod of the MAG-1000 blade balancer
(
never straighten bent blades
)
3.
Obtain a balance reading from the MAG-1000 to indicate the light end of the lawn mower blade.
Once the light end is sharpened, that end is complete. The heavy end is used to remove material
for balance. See MAG-1000 instructions for more details on blade balancing.
(
never weld mower blades
)
4.
Adjust the cutting edge angle to 30 degrees.
CONVENTIONAL BLADE SHARPENING
1. Switch the ON/OFF switch to ON position
2. Place the conventional blade on the worktable, you should push and pull the blade across the
grinding wheel. Notice approach the grinding wheel as shown.
3.
Stay perpendicular to the rotation of the wheel.
4.
Keep firm downward pressure on the top of the blade so that contact is maintained with the
worktable. This is important because the angle is referenced off the worktable and underside of the
blade.
5.
The force into the grinding wheel should be substantial resulting in a continuous stream of sparks
and a deep smooth grinding sound.
6.
The grinding process should be continuous without interruption until finished.
CONVENTIONAL BLADES
CAUTION
LAWN MOWER BLADES HAVE SHARP EDGES - ALWAYS WEAR
PROTECTIVE GLOVES AND SAFETY GLASSES!
IT IS TAKING A LOT OF GRINDING TO GET A SHARP BLADE?
Are the grinding marks on the “trailing edge” (top edge) of the mower blade cutting edge?
That means your blades were at a steeper angle then you are grinding now. If your blades were
previously sharpened with some other method it is very likely your cutting edge angles are near 45
degrees. It is very common for blades sharpened on other machines or with an angle grinder to be way
up at 45 degrees or steeper. This often happens when people “free-hand” grind.
The MAG-8200 is going to make a consistent 30 degree angle - so your first grinding may take much
longer and use more of the grinding wheel because you are re-machining your blades. This correction
requires a lot of steel be removed to go from 45 down to 30 degrees.
Don’t worry, once fix all your blades and make them 30 degrees, every sharpening after that will be very
fast because you will grind a consistent angle every-time from now on with your MAG-8200.
