MTD OEM-190-821 Operator's Manual page 8

ATTACHING THE CUTTING BLADES
WARNING:
Always protect hands by wearing heavy
leather work gloves to grasp blades.
Remove the blades from your tractor's cutting deck
as follows.
1. Remove the cutting deck from beneath the
tractor, (refer to DECK REMOVAL in the
MAINTENANCE section
Operator's Manual for detailed instructions) then
gently flip the deck over to expose its underside.
2. Place a block of wood between the center deck
housing baffle and the cutting blade to act as a
stabilizer. See Figure 7.
3. Use a 15/16" wrench to remove the hex flange
nut that secures the blade to the spindle
assembly. See Figure 7.
NOTE:
The hex flange nut has a 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.
Hex Flange Nut
Spindle
Assembly
Figure 7
4. 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.
IMPORTANT:
Mount the smaller of the three
blades to the center spindle. The remaining two
blades are interchangeable.
IMPORTANT:
Use a torque wrench to tighten the
blade spindle hex flange nut to between 70 foot-
pounds and 90 foot-pounds.
5. Remount the cutting deck.
Cutting blades are sharp.
of your tractor's
Block of Wood
Cutting Blade
ATTACHING THE DISCHARGE CHUTE
1. Raise the deck to its highest position by placing
the lift lever in the top notch on the right fender.
Raise the chute deflector on the deck. Place the
top edge of the discharge chute in position over
the chute opening on the deck, then push down
on the discharge chute so the front edge fits
snuggly around the cutting deck opening. See
Figure 8.
Chute
Deflector
Discharge Chute
2. Fasten the discharge chute in position by
hooking the retainer strap over the clip on the
top of the deck. See Figure 8.
3. Insert the upper end of the chute tube into the
hole in the cover assembly, then place the lower
end of the chute tube over the discharge tube.
Secure by placing the ends of the retainer straps
on the discharge chute over the clips on the
chute tube See Figure 9.
Clips
Retainer Straps
Discharge
Chute
8
Retainer
Strap
Clip
Cutting Deck
Figure 8
Chute Tube
Figure 9