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

Installation

Preparing the Machine

  1. Park the machine on a level surface.

  2. Move the motion-control levers to the NEUTRAL-LOCK position.

  3. Engage the parking brake.

  4. Shut off the engine and remove the key.

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Verifying an Existing Pivot Tube

If your deck has a pivot tube as shown in Figure 2, then proceed to Installing the Blower Assembly, Bagger Belt, Spring and Blower-Belt Cover.

Note: Do not remove the existing pivot tube.

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Removing the Belt Cover

Unlatch and remove the right belt cover.

Store the right belt cover, bracket, and hardware for later use if you remove the bagger blower and pulley.

Removing the Existing Anti-Scalp Roller and Bracket

Note: Do not perform this procedure if a pivot is installed.

  1. Clean the area around the right, rear anti-scalp roller.

  2. Remove the anti-scalp roller from the bracket by loosening and removing the flange nut (3/8 inch) and axle bolt (3/8 x 4-1/2 inches) as shown in Figure 3.

    Save all hardware for later use.

  3. Remove the 3 carriage bolts (3/8 x 3/4 inch) and 3 flange nuts (3/8 inch) securing the bracket to the mower (Figure 3).

    Save all hardware for later use.

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Installing the Pulley Assembly and Belt

Parts needed for this procedure:

Pulley assembly1
Pulley-plate mount—for machines with an aluminum spindle only1
Flange nut (3/8 inch)—for machines with an aluminum spindle only3

For Machines with an Aluminum Spindle

  1. Remove the top nut, washer, and sheave from the spindle (Figure 4).

    Note: Note the orientation of the sheave when you remove it from the spindle to ensure that you install it properly later in the process.

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  2. Insert the pulley-plate mount studs into the holes in the sheave (Figure 5).

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  3. Loosely install the 3 nuts to the studs (Figure 6).

    Leave a clearance of 5 mm (3/16 inch) between the nut and sheave.

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  4. Install the sheave assembly to the spindle using the washer and top nut (Figure 7).

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  5. Torque the top nut to 176 to 217 N∙m (130 to 160 ft-lb).

    Note: Ensure that the sheave spins freely.

  6. Align the new pulley assembly so that the openings fit over the nuts (Figure 8).

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  7. Turn the pulley to lock it into position (Figure 9).

    Note: If the pulley does not turn, loosen the nuts more to raise the nuts and allow the pulley to lock into position.

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  8. After the new pulley assembly is in position, tighten the nuts to secure new pulley assembly.

    Torque the 3 nuts to 28 to 34 N∙m (21 to 25 ft-lb).

  9. Install the deck belt.

For Machines with Bolts

  1. Loosen, but do not remove, the tapping bolts on the existing mower-deck pulley (Figure 10).

    Note: There should be a 5 mm (3/16 inch) clearance between the bolt head and pulley.

  2. Align the new pulley assembly so that the openings fit over the pulley bolt heads (Figure 10).

  3. Turn the pulley to lock it into position (Figure 10).

    Note: If the pulley does not turn, loosen the bolts more to raise the bolt heads and allow the pulley to lock into position.

  4. After the new pulley assembly is in position, tighten the existing bolts to secure new pulley assembly.

    Note: Torque the bolts to 28 to 34 N∙m (21 to 25 ft-lb).

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  5. Install the deck belt.

Installing the Pivot Bracket

Parts needed for this procedure:

Blower pivot1
Metal template1
Bolt (3/8 x 1 inch)3
Locknut (3/8 inch)3
  1. Install the metal template with the number 52 in it to the mower deck with the previously removed carriage bolts and nuts using the existing holes in the mower deck (Figure 11).

    Ensure that the carriage bolts and nuts are tight and the template is tight against the mower deck.

  2. Center-punch the new mower deck hole locations using the 3 holes in the template (Figure 11).

  3. Remove the metal template and drill 3 pilot holes (1/8 inch) with a sharp drill bit (Figure 11).

  4. Drill 3 holes (13/32 inch) into the pilot holes with a sharp drill bit (Figure 11).

  5. Remove part of the metal belt cover support on top of the deck.

    Refer to Figure 11 for the correct size and location to remove.

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  6. Install the new blower pivot using 3 bolts (3/8 x 1 inch) and 3 locknuts (3/8 inch) using the drilled holes (Figure 12).

  7. Install the anti-scalp roller to the blower pivot using the previously removed axle bolt (3/8 x 4-1/2 inches), spacer, bushing, and flange nut (3/8 inch) as shown in Figure 12.

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Installing the Blower Assembly, Bagger Belt, Spring and Blower-Belt Cover

Parts needed for this procedure:

Blower assembly1
Bagger belt1
Blower belt cover1
Spring1

Refer to the bagger Operator's Manual for the correct procedure to install the blower, bagger belt, spring, and blower-belt cover.