8-Blade, 11-Blade, or 14-Blade EdgeSeries™ Cutting Unit

Adjust the cut-off bar to ensure that the clippings are cleanly discharged from the reel area, as follows:

Note: The bar is adjustable to compensate for changes in turf conditions. Adjust the bar closer to the reel when the turf is extremely dry. By contrast, adjust the bar further away from the reel when the turf conditions are wet. The bar should be parallel to the reel to ensure optimum performance. Adjust it whenever you sharpen the reel.

1. Loosen the bolts securing the top bar (Figure 4) to the cutting unit.

   

   Figure 4

   1. Cut-off bar

2. Insert a 1.5 mm (0.060 inch) feeler gauge between the top of the reel and the bar then tighten the bolts.

   Important: Ensure that the bar and reel are equal distance apart across the complete reel.

   Note: Adjust the gap as needed for your turf conditions.

For Cutting Unit Model 04657 Only

• If Cutting Unit Model 04657 is used on autonomous traction unit (Model 04580AA), an unadjustable grass-deflection bar is already installed to prevent grass clippings from interfering with detection sensors.

  Note: Do not remove the grass-deflection bar.

• If Cutting Unit Model 04657 is used on any other Greensmaster 3300 or 3400 traction unit, remove the grass-deflection bar and replace it with cut-off bar (Part No. 115-3303-03) and 4 bolts (Part No. 131-6150) as shown in Figure 5.

  

  Figure 5

1. Adjust the rear roller brackets to the desired height-of-cut range by positioning the required amount of spacers below the sideplate-mounting flange (Figure 8) per the Height-of-Cut and Bedknife Selection Charts.

   

   Figure 8

   1. Sideplate-mounting flange
   2. Spacer
   3. Roller bracket

2. Raise the rear of the cutting unit and place a block under the bedknife.

3. Remove the 2 nuts securing each roller bracket and spacer(s) to each sideplate-mounting flange.

4. Lower the roller bracket and bolts from the sideplate-mounting flanges and spacers.

5. Place the spacers onto the bolts on the roller brackets.

6. Secure the roller bracket and spacers to the underside of the mounting flanges with the nuts previously removed.

   Note: Place unused spacers on top of the sideplate-mounting flange for later use.

Note: The position of the rear roller to the reel is controlled by the machining tolerances of the assembled components and paralleling is not required.

Before adjusting the height of cut, set the height-of-cut gauge as follows:

1. Loosen the nut on the gauge bar and set the adjusting bolt to the desired height of cut (Figure 9).

   Note: The distance between the bottom of the bolt head and the face of bar is the height of cut.

   

   Figure 9

   1. Gauge bar
   2. Height-adjusting bolt
   3. Nut

2. Tighten the nut.

1. Loosen the locknuts securing the height-of-cut arms to the cutting-unit side plates (Figure 10).

   

   Figure 10

   1. Height-of-cut arm
   2. Flange locknut
   3. Adjusting bolt

2. Hook the bolt head of the height-of-cut gauge onto the right side of the cutting edge of the bedknife and rest the rear end of the bar onto the rear of the roller (Figure 11).

   

   Figure 11

   1. Gauge bar

3. Rotate the adjusting bolt until the roller contacts the front of the gauge bar.

4. Repeat steps 2 and 3 for the left side.

5. Adjust both ends of the roller until the entire roller is parallel to the bedknife.

   Important: When set properly, the rear and front rollers contact the gauge bar and the bolt is snug against the bedknife. This ensures that the height of cut is identical at both ends of the bedknife.

6. Tighten the nuts to secure the adjustment enough to remove play from the washer.

7. Verify that the height-of-cut setting is correct; repeat this procedure if necessary.

1. Turn the bedbar adjusting screw, counterclockwise, to back the bedknife away from the reel (Figure 13).

   

   Figure 13

   1. Bedbar-adjusting screw
   2. Spring-tension nut
   3. Bedbar
   4. Washer

2. Back out the spring-tension nut until the washer is no longer tensioned against the bedbar (Figure 13).

3. On each side of the machine, loosen the locknut securing the bedbar bolt (Figure 14).

   

   Figure 14

   1. Bedbar bolt
   2. Locknut

4. Remove each bedbar bolt allowing the bedbar to be pulled downward and removed from the cutting unit (Figure 14).

   Account for the 2 nylon washers and 1 steel washer on each end of the bedbar (Figure 15).

   

   Figure 15

   1. Bedbar bolt
   2. Nut
   3. Nylon washer
   4. Steel washer

1. Install the bedbar, positioning the mounting ears between the washers and the bedbar-adjusting screw (Figure 13).

   Important: Center the DPA adjusters in the bedbar ears as shown in Figure 16.If DPA adjusters are installed against the bedbar ears, this may negatively affect the bedknife-to-reel contact.

   

   Figure 16

   1. Bedbar ears
   2. DPA adjuster

2. Secure the bedbar to each side plate with the bedbar bolts (nuts on bolts) and 3 washers (6 total).

3. Position a nylon washer on each side of the side-plate boss. Place a steel washer outside each of the nylon washers (Figure 15).

4. Torque the bedbar bolts to 27 to 36 N∙m (240 to 320 inch-lb).

5. Tighten the locknuts until you remove the end play from steel washers, but you are able to rotate them by hand. The washers on the inside may have a gap.

   Important: Do not overtighten the locknuts or they will deflect the side plates.

6. Tighten the spring tension nut until the spring is collapsed, then back it off 1/2 turn (Figure 17).

   

   Figure 17

   1. Spring-tension nut
   2. Spring

7. Adjust the bedknife to the reel; refer to Adjusting the Bedknife to the Reel.

1. Remove the rust, scale, and corrosion from the bedbar surface and apply a thin layer of oil to the bedbar surface.

2. Clean the screw threads.

3. Apply never-seize compound to the screws and install the bedknife to the bedbar.

   

   Figure 18

   1. Bedbar
   2. Bedknife
   3. Screw

4. Torque the 2 outer screws to 1 N∙m (10 in-lb).

5. Working form the center of the bedknife, torque the screws to 23 to 28 N∙m (200 to 250 in-lb).

   

   Figure 19

   1. Bednife screw tool
   2. Install and torque these first to 1 N∙m (10 in-lb).
   3. Torque to 23 to 28 N∙m (200 to 250 in-lb).

6. Grind the bedknife.

The angle that you use to grind your bedknives is very important.

Use the angle indicator (Toro Part No. 131-6828) and the angle-indicator mount (Toro Part No. 131-6829) to check the angle that your grinder produces and then correct for any grinder inaccuracy.

1. Place the angle indicator on the bottom side of the bedknife as shown in Figure 21.

   

   Figure 21

   1. Bedknife (vertical)
   2. Angle indicator

2. Press the Alt Zero button on the angle indicator.

3. Place the angle-indicator mount on the edge of the bedknife so that the edge of the magnet mates with the edge of the bedknife (Figure 22).

   Note: The digital display should be visible from the same side during this step as it was in step 1.

   

   Figure 22

   1. Angle-indicator mount
   2. Edge of the magnet mated with the edge of the bedknife
   3. Bedknife
   4. Angle indicator

4. Place the angle indicator on the mount as shown in Figure 22.

   Note: This is the angle that your grinder produces, and should be within 2 degrees of the recommended top grind angle.

1. Ensure that all cutting unit components are in good condition and correct any issues before grinding.

2. Follow the reel grinder manufacturer’s instructions to grind the cutting reel to the following specifications.

   Reel Grinding Specifications
   New Reel Diameter	128.5 mm (5.06 inches)
   Reel Diameter Service Limit	114.3 mm (4.50 inches)
   Blade Relief Angle	30° ± 5°
   Blade Land Width Range	0.8 to 1.2 mm (0.03 to 0.05 inches)
   Reel Diameter Taper Service Limit	0.25 mm (0.010 inch)

The new reel has a land width of 0.8 to 1.2 mm (0.03 to 0.05 inches) and a 30° relief grind.

When the land width gets larger than 3 mm (0.120 inch) wide, do the following:

1. Apply a 30° relief grind on all reel blades until the land width is 0.8 mm (0.03 inch) wide (Figure 23.

   

   Figure 23

   1. 30°
   2. 0.8 mm (0.03 inch)

2. Spin grind the reel to achieve <0.025 mm (0.001 inch) reel run-out.

   Note: This causes the land width to grow slightly.

3. Adjust the cutting unit; refer to your cutting unit Operator’s Manual.

Note: To extend the longevity of the sharpness of the edge of the reel and the bedknife—after grinding the reel and/or the bedknife—check the reel to bedknife contact again after cutting 2 greens, as any burrs will be removed. Burrs may create improper reel to bedknife clearance, which can accelerate wear.