Installation Instructions

Gently flip the deck over to expose its underside.2.
Place a block of wood between the deck housing baffle 3.
and the cutting blade to act as a stabilizer, then use a
wrench to remove the hex flange nut that secures each
blade to its spindle assembly. See Fig. 1-2.
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 nut.
Replace the blades with the blades included in the kit. Be 4.
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.
IMPORTANT: Use a torque wrench to tighten each blade
spindles hex flange nut to between 70 ft-lb and 90 ft-lb.
Model 19A30006OEM mulch kit is designed for use with select
42-inch two-blade cutting decks. Refer to your lawn 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 Fig. 1-1. Part numbers are shown in parentheses.
Two Mulching Blades (742-0616A) •
One 42” Deck Mulch Plug Assembly (631-04463)•
One Pin (711-04069) and Flange Nut (712-04063)•
Blade Installation
WARNING: 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 engine and remove the
ignition key to prevent unintended starting.
WARNING: Cutting blades are sharp. Always protect
hands by wearing heavy leather work gloves to
grasp blades.
Remove the cutting deck from beneath the tractor as 1.
instructed in your tractor’s Operator’s Manual.
Figure 1-1
Figure 1-2
Form No. 769-05296A
December 4, 2009
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
Printed In USA
In s t a l l a t I o n Ma n u a l
42-inch Mulch Kit — 19A30006OEM
Form No. 3365-291 Rev A

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