MTD 19A30050100, Installation Sheet

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MTD PRODUCTS LLC, P.O. BOX 361131, CLEVELAND, OHIO 44136-0019
FastAttach™ Blade System Installation (If equipped)
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.
1. Set the tractor deck height to its highest position.
2. Carefully feel for the finger grooves on the blade collar at
the sides of the blade.
3. Push upward on the blade collar and hold it. See Figure 3.
4. While holding the collar in the upward position, rotate
the blade counter-clockwise to free it from the collar.
See Figure 4.
5. When the hole in the center of the blade aligns with the
tractor blade retainer, carefully lower the blade. See
Figure 5.
6. Line up the hole in the center of the XTREME™ mulch blade over the S-shaped retainer.
See Figure 6.
NOTE: When replacing or
installing the blades, be
sure to install with the side
marked “Bottom” or “Grass
Side” (or with a part number
stamped on it) facing the
ground when mower is in
operating position.
7. Push the blade upward
against the blade adapter
until the collar above rises.
See Figure 3.
8. Rotate the blade clockwise to align with the blade adapter.
See Figure 7.
NOTE: If too much resistance is felt while turning the blade then the spindle is rotating, the
blade is not properly aligned on the blade adapter and installation will not be successful.
9. There will be an audible click when the blade is properly locked in place. See Figure 8.
Figure 3
Figure 4 Figure 5 Figure 6
Figure 7
Figure 8
Form No. 769-26037
March 11, 2021
Contents of Carton
Ref Part # Description Qty
1 631-08129 Mulch Assembly 1
2 720-04122 Wing Knob 1
3 742P05094-X XTREME™ Mulch Blade (50” deck only) 3
4 942-01050-X XTREME™ Mulch Blade (50” FastAttach™ deck only) 3
5 742P05086-X XTREME™ Mulch Blade (54” deck only) 3
6 942-01054-X XTREME™ Mulch Blade (54” FastAttach™ deck only) 3
NOTE:
Kits are deck-specific. Three (3) blades will be included with your kit. Verify you have the correct kit
for your deck size and style.
Installation Sheet
50” - 19A30050100/19A30052100/19A30050066; 54” - 19A30051100/19A30053100/19A30051066 -- Mulch Kit
1
2
3
50” Deck
5
54” Deck
4
50” FastAttach Deck
6
54” FastAttach Deck
Figure 1
Standard Blade System Installation (If equipped)
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.
1. Remove the deck from beneath
the tractor (refer to Deck
Removal in the Operator’s
Manual) then gently flip the
deck over to expose
its underside.
2. Use a 15/16” wrench to hold the
hex nut on top of the spindle
assembly when loosening the
hex nut (a) and washer (d) *
securing the blade. A block
of wood (c) may be placed
between the deck housing and
the cutting edge of the existing
blade (b) to help in breaking
loose the hex nut (a) and washer (d) * . See Figure 2.
3. When reinstalling blades, be sure of the following (see Figure 2):
a. Blades (b) are installed so wings are pointing upward toward the top of the deck.
NOTE: When replacing or installing the blades, be sure to install with the side marked
“Bottom” or “Grass Side” (or with a part number stamped on it) facing the ground when
mower is in operating position.
b. Washer (d)
*
is placed between bottom of blade (b) and hex nut (a).
IMPORTANT! Align “S” shaped cutout on XTREME™ mulch blade with matching “S” shape
on spindle for secure fit.
4. Tighten hex nut (a) to 70-90 ft-lbs (95-122 N-m).
5. Reinstall the deck (refer to Deck Installation in the Operator’s Manual).
(a)
(d)
(c)
(b)
*
* If equipped * If equipped
Figure 2