MTD OEM-190-180 Operator's Manual page 8

Mounting
Support Bracket
Bracket
Nut
Hitch Plate
Figure 15
Attaching Blades
• Remove the blades from your tractor's cutting deck
as follows.
• Remove the cutting deck from beneath the tractor,
(refer to Deck Removal in the MAINTENANCE section of
your tractor's operator's manual for detailed
instructions) then gently flip the deck over to
expose its underside.
• Place a block of wood between the center deck
housing baffle and the cutting blade to act as a
stabilizer. See Figure 16.
• Use a 15/16" wrench to remove the hex flange nut
that secures the blade to the spindle assembly. See
Figure 16.
Hex Flange Nut
Spindle Assembly
Figure 16
NOTE: The hex flange nut has a normal (right-handed)
thread pattern. Do NOT attempt to force the nut in the
incorrect direction. Doing so may damage the nut and
create a safety hazard.
• Install the new blades packed with the bagger. Be
sure to install the blade with the side of the blade
marked ''Bottom'' (or with a part number stamped in
it) facing the ground when the mower is in the
operating position.
Self-Tapping
Screw
Shoulder
Bolt
Bell
Washer
Wood Block
• Mount the SMALLER of the three blades to the
CENTER spindle. The remaining two blades are
interchangeable.
Use a torque wrench to tighten the blade
IMPORTANT:
spindle hex flange nut to between 70 foot-pounds and
90 foot-pounds.
• Remount the cutting deck.
Attaching Discharge Chute
Follow instructions on page 5 of this manual.
Operation
• Open the grass bag cover by lifting the cover up.
Do not remove the chute tube assembly from the
tractor. Remove the grass bags by lifting these
up and moving the bags away from the support
tube assembly. To empty the grass clippings at a
proper disposal sight, use the handle at the
bottom of each grass bag. Holding the bag firmly,
empty the contents.
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