MTD OEM-190-626 Lawn Mower User Manual


 
5
Remove the blades from your tractor’s cutting deck as
follows.
NOTE: Do NOT perform the following steps on
tractor’s equipped with a 42-inch deck.
1. 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.
2. Place a block of wood between the center deck
housing baffle and the cutting blade to act as a
stabilizer. See Figure 5.
3. Use a 15/16" wrench to remove the hex flange nut
that secures the blade to the spindle assembly. See
Figure 5.
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.
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.
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.
2. Pivot the chute deflector on the deck upward.
3. 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 snugly around the cutting deck opening.
See Figure 6.
4. Fasten the discharge chute in position by hooking
the retainer strap over the retainer clip found on the
front lip of the cutting deck. See Figure 6.
5. Pivot the cover assembly forward and insert the
upper end of the chute tube into the hole in the
cover assembly. See Figure 7.
6. Insert the extension tube between the discharge
chute and the chute tube as shown in Figure 7.
7. Secure by placing the ends of the retainer straps on
the discharge chute over the clips on the chute
tube. See Figure 7.
Figure 5
Figure 6
Figure 7
Spindle Assembly
Hex Flange Nut
Wood Block
Retainer Strap
Discharge Chute
Chute Tube
Extension Tube
Discharge Chute
Retainer Strap