Note: Determine the left and right sides of the machine from the normal operating position.

Installation

Preparing the Machine

  1. Rotate the cutting unit into the maintenance position; refer to your machine Operator’s Manual.

  2. Thoroughly clean the cutting unit. Remove all debris to ensure that the baffles fit properly against the cutting unit.

Removing the Existing Wing-Blade Assemblies

  1. Remove the existing wing-blade assemblies; refer to the mower-deck maintenance section in your machine Operator’s Manual.

    Set aside the bolts, spring lock washers, and curved washers for the mulching-blade installation procedure.

    Important: The right-blade assembly bolt has a left-handed thread. Turn the blade bolt clockwise to loosen it.

  2. Save the existing wing-blade assemblies for use when you use the hopper for collection.

Installing the Discharge-Chute Plug

Parts needed for this procedure:

Discharge-chute plug1
Bolt1
Washer1
Nut1
  1. Use a bolt, washer, and nut to install the discharge-chute plug over the disharge-chute opening (Figure 1).

    If there is not a hole in the baffle, use the hole in the plug to drill a 9.5 mm (0.375 inch) hole in the baffle. Remove any burs from the hole.

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  2. Torque the bolt to 28 N∙m (21 ft-lb).

Installing the Mulching Blades

Parts needed for this procedure:

Blade assembly (right side)1
Blade assembly (left side)1
Spacer2
  1. Hold a blade-assembly end using a cloth or a thickly-padded glove.

  2. Use the previously-removed parts from the wing-blade-assembly removal procedure (bolts, spring lock washers, and curved washers) and spacers to install the blade assemblies to their respective sides (Figure 2).

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  3. Torque the blade bolts to 53 N∙m (39 ft-lb).

    Important: The right-blade assembly bolt has a left-handed thread. Turn the blade bolt clockwise to loosen it.