Bad Boy MZ Series, Owner'S Manual

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If deck adjustments are necessary, the deck hanger bolts have adjustable
slots. These adjusters affect the overall height of the deck and the level
from left to right.
The deck spring tension is critical. If the tension is too much, it will cause
the spring to break. If too loose, the belt can jump off or slip on the
pulleys and cause a cut quality issue. With the deck up, the spring coil gap
should be about .025˝ - .030˝ (about the thickness of a credit card). Spring
tension adjustments can be made by sliding the bolt shown above forward
or backward in the slot of the deck.
The condition of the blades can drastically affect the cut
quality of the mower deck. Replace as necessary. These
blades were used considerably too long. Resharpening is
recommended by professionals only to determine when
the blade needs to be replaced and because of the need for
rebalancing.
To change blades, it may be easier to use a piece of wood to
keep the blade from turning so that the bolt can be loosened.
Bolts used have standard threads. Re-torque the blade
bolts to 90-110 lbs. The blade spindles contain a sealed ball
bearing in the top and bottom of the spindle. The bearings
are replaceable for a
more cost effective
repair.
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