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SHARPENING THE BLADES
• The blades should be sharpened when the mower
will no longer cut satisfactorilywithout the cutter bar
being adjusted to rub against the reel blades.
CUTTER BAR ADJUSTMENT
CHECKING THE CLEARANCE
• When the cutter bar is properly adjusted there should
be .003" clearance between the cutter bar and the
reel blades. The blades must not contact the cutter
bar. Clearance may be checked in the following
manner.
• Cut some quality .003" thick paper (writing paper or a
magazine page) intostrips approximately 2" wide and
6" long. Insert a strip of paper between the cutter bar
and the blades as shown in figure 9. Turn the reel
slowly backwards. The blades should pinch but not
cut the paper. Check the clearance at each end and
in the middle of the cutter bar. The paper should be
held snugly by each blade.
• Determine whether the space between the cutter bar
and the blades needs-to be increased or decreased
to obtain the recommended .003" clearance.
• If the clearance is determined to be correct but the
mower will not cut grass, then the blades should be
sharpened.
FIGURE 9
ADJUSTING THE CU'I-rER BAR CLEARANCE
IMPORTANT: Adjust only the nuts securing the upper
trunnion; DO NOT adjust the nuts on the lowertrunnion.
Refer to figure 10.
• Before adjusting the cutter bar, check to make sure
that all the nuts securing the cutter bar and the
adjustment trunnions are still firmly tightened.
• To increase the clearance between the cutter bar and
the blades, loosen the lower nut 1/4 turn and then
tighten the upper nut 1/4 turn. Adjust each side of the
mower equally until a .003" clearance is obtained.
See figure 10.
• To decrease the clearance between the cutter bar
and the blades, loosen the upper nut 1/4 turn and
then tighten the lower nut 1/4 turn. Adjust each side
of the mower equally until a .003" clearance is
obtained. See figure 10.
UPPER NUI__
UPPER
TRUNNION
LOWER _
Cu3-rER BAR
BOLT
Y
J
FIGURE 10
CHECKING THE ADJUSTED CLEARANCE
• Push the handle ofthe mower forward and let it rest
on the ground. The roller should be offthe ground.
• Insert a strip of quality .003" paper (writingpaper or
magazine page) between the cutter bar and blades.
• Turn the reel slowly forward as shown in figure 11.
The paper should be cut cleanly, without the blades
contacting the cutter bar.
• Perform this test at each end and in the middle of the
cutter bar.
FIGURE 11
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