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Normal Care
1.
Remove mower from tractor (Refer
i
to procedure in Mower Installation
section).
/
2.
Check each of the blades. Blades
f
should be sharp and free of nicks and
/
dents. If not, sharpen blades as des-
/ REIV
cribed in remaining steps.
3.
To remove blade for sharpening, use
wooden block to hold blade while
/i|
removing the holddown screw and
\
washer(s).
4.
Use a file to sharpen blade to fine edge.
f
Remove all nicks and dents in blade edge.
1
If blade is severely damaged, it should be
replaced.
5.
Check blade balance, either by using a blade
balancing machine or by using the following
method:
A. To roughly check blade balance, hammer
the point of a thin finishing nail into the
edge of a work bench so that it is hori¬
zontal and able to hold the weight of the
blade.
B.
Put a drop of oil on the nail to cut down
friction and carefully place the blade on the
nail so that the nail is on the centerline of
the hole. Be sure the blade is not touching
the work bench.
C.
If one side of the blade drops below the
other, then the end that drops is too heavy.
D. File or grind off a small amount of material
from the heavy end, and recheck the blade
for balance, being careful to position the
blade so the nail is on the centerline of the hole.
USE PIN THROUGH HOLE
IF ARBOR TURNS
r
A
CAUTION
Blade holddown screws must be
installed with washers and securely
tightened. Torque holddown screws '
to 50-60 foot pounds (68-81 N-M).
Install blade on arbor with tabs pointing up
toward cover. Use wooden block to prevent
blade rotation while installing and tightening
blade holddown screw.
3V
Figure 23. Check, Sharpen, and Balance Mower Blades
26
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