Models 19A30046* and 19A30047* mulch kits are designed for use with select 42"
and 46" two-blade cutting decks with "S" shaped spindles. Refer to your tractor's
Operator's Manual to assure compatibility.
Carton Contents
Before beginning installation, remove all parts
from the carton to make sure everything is
present. Carton contents are listed below and
shown in Figure 1.
Part No.
Part
742-05177-X Mulching Blade - 42" Deck
742-05510-X Mulching Blade - 46" Deck
631-05195A Deck Mulch Plug Assembly
720-04122
Wing Knob
NOTE: Kits are deck-specific. Two (2) blades will be included with your kit. Verify you have
the correct kit for your deck size.
Blade Installation
Before beginning installation, place the tractor on a firm and level surface, set the parking
brake, place the PTO in the disengaged (OFF) position, stop the tractor's motor and remove
the ignition key to prevent unintended starting.
Cutting blades are sharp. Always protect hands by wearing heavy leather work gloves to
grasp blades.
1.
Remove the cutting deck
from beneath the tractor as
instructed in your tractor's
Operator's Manual.
2.
Gently flip the deck over to
expose its underside.
3.
Stabilize one of the cutting
blades with a blade lock tool or a
block of wood. See Figure 2.
4.
Remove the hex flange nut that
secures the blade to the spindle.
IMPORTANT! The hex flange nuts have a right-handed (normal) thread pattern. DO NOT
attempt to force the nuts in the opposite direction. Doing so may damage the nuts.
MTD PRODUCTS LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
INSTALLATION INSTRUCTIONS
XTREME Mulch Kits - 42"/46" Decks
19A30046*/19A30047*
Qty
2
2
1
1
Figure 1
WARNING
WARNING
Figure 2
5.
Repeat Steps 3 and 4 on the other cutting blade.
6.
Replace the blades with the blades included in the deck-specific kit.
Be sure to install each blade with the side marked ''Bottom'' (or with a
part number stamped in it) facing the ground when the mower is in the
operating position.
7.
Thread on the hex flange nut to secure the blade to the spindle assembly.
IMPORTANT! Use a torque wrench to tighten each blade spindle's hex flange nut to
between 90 ft-lb and 110 ft-lb.
Installing the Mulch Plug
1.
Pivot the chute deflector upward
and remove the protective cover
from the pin found on the deck's
surface. See Figure 3.
2.
To install the mulch plug, pivot
the discharge chute upward.
Refer to Figure 4:
a.
Insert the mulch plug
rod into the hole found
on the bracket (or deck
wheel bracket, on
models so equipped).
b.
Position the rear of the
mulch plug over the pin
found on the
deck's surface.
IMPORTANT! Be certain the bottom
edge of the mulch plug is installed
on the inside of the lip of the deck
opening, as shown in Figure 5.
3.
Secure the mulch plug with the
wing knob. See Figure 6.
Figure 5
1
Figure 3
a
b
Figure 4
Figure 6
Form No. 769-25560
(July 1, 2020)