8-Blade, 11-Blade and 14-Blade EdgeSeries DPA Cutting Units

This product is capable of amputating hands and feet. Always follow all safety instructions to avoid serious personal injury.

• Read and understand the contents of this Operator’s Manual before starting the machine.

• Use your full attention while operating the machine. Do not engage in any activity that causes distractions; otherwise, injury or property damage may occur.

• Do not put your hands or feet near moving components of the machine.

• Do not operate the machine without all guards and other safety protective devices in place and functioning properly on the machine.

• Keep clear of any discharge opening.

• Keep bystanders and children out of the operating area. Never allow children to operate the machine.

• Before you leave the operator’s position, do the following:

  • Park the machine on a level surface.

  • Lower the cutting unit(s).

  • Disengage the drives.

  • Engage the parking brake (if equipped).

  • Shut off the engine and remove the key (if equipped).

  • Wait for all movement to stop.

Improperly using or maintaining this machine can result in injury. To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety-alert symbol, which means Caution, Warning, or Danger—personal safety instruction. Failure to comply with these instructions may result in personal injury or death.

• The cutting unit is only a complete machine when installed on a traction unit. Read the traction unit Operator’s Manual carefully for complete instructions on the safe use of the machine.

• Stop the machine, remove the key (if equipped), and wait for all movement to stop before inspecting the attachment after striking an object or if there is an abnormal vibration in the machine. Make all necessary repairs before resuming operation.

• Keep all parts in good working condition and all hardware tightened. Replace all worn or damaged decals.

• Use only accessories, attachments, and replacement parts approved by Toro.

A worn or damaged blade can break, and a piece of the blade could be thrown toward you or bystanders, resulting in serious personal injury or death.

• Inspect the blade periodically for wear or damage.

• Use care when checking the blades. Wrap the blades or wear gloves, and use caution when servicing the blades. Only replace or sharpen the blades; never straighten or weld them.

• On multi-bladed machines, take care as rotating 1 blade can cause other blades to rotate.

The cutting unit is shipped without a front roller. Obtain a roller from your authorized Toro distributor and install it on the cutting unit, as follows:

1. Remove the plow bolt and flange locknut securing one of the height-of-cut arms to the cutting unit side plate (Figure 3).

   

   Figure 3

   1. Height-of-cut arm
   2. Adjusting screw
   3. Plow bolt
   4. Flange locknut
   5. Roller-mounting screw

2. Loosen the roller-mounting screws in the height-of-cut arms (Figure 3).

3. Slide the roller shaft into the height-of-cut arm on the opposite end of the cutting unit (Figure 3).

4. Slide the height-of-cut arm onto the roller shaft (Figure 3).

5. Loosely secure the roller to the cutting unit with the height-of-cut arm and fasteners previously removed (Figure 3).

6. Center the roller between the height-of-cut arms.

7. Tighten the roller-mounting screws (Figure 3).

8. Adjust to the desired height-of-cut and tighten the height-of-cut arm mounting fasteners.

Install a ball stud on each end of the front roller (Figure 4).

Figure 4

1. Ball stud

For cutting units mounting on a traction unit with a serial number prior to 240000001, obtain and install the proper lift link as follows:

Note: The 2 bolts used to mount the lift link are shipped installed on the cutting unit.

• For Greensmaster 3120 and 3150 traction units, install the hoop link supplied with the traction unit.

  Install the hoop link to the top of the cutting unit with 2 bolts. Torque the bolts to 34 to 40 N∙m (25 to 30 ft-lb) (Figure 5).

  

  Figure 5

  1. Hoop link

• For the Greensmaster 3250-D traction units, install the offset link supplied with the traction unit.

  Install the offset link (Figure 6) to the top of the cutting unit with 2 bolts. Torque the bolts to 34 to 40 N∙m (25 to 30 ft-lb).

  Important: Position the lift hook offset toward the front of the cutting unit.

  

  Figure 6

  1. Offset lift hook

• Optionally for the Greensmaster 3250-D traction units, you can install the chain Link and mounting bracket available from your authorized Toro distributor.

  Install the chain link (Figure 7) to the top of the cutting unit with the mounting bracket and 2 bolts. Torque the bolts to 34 to 40 N∙m (25 to 30 ft-lb).

  Note: When mounting the cutting unit to the traction unit, hook the wider end of the chain link to the lift arm.

  

  Figure 7

  1. Chain link
  2. Mounting bracket

The cutting units are shipped with the counter weight mounted to the left end and the motor mount to the right end of the cutting unit. To change the cutting unit to different positions, proceed as follows:

Important: Whenever you need to tip the cutting unit on its side, ensure that you prop it up to avoid damaging the bedbar-adjusting bolts; refer to Supporting the Cutting Unit

1. Remove the 2 bolts securing the counter weight to the left end of the cutting unit. Remove the counter weight (Figure 9).

2. Remove the 2 Allen head bolts securing the motor mount to the left end of the cutting unit. Remove the motor mount (Figure 8).

3. Apply grease to the inside diameter of the drive spline (Figure 8).

4. On the left end of the cutting unit, apply a light coating of oil to the O-ring and install the motor mount with the 2 Allen head bolts previously removed (Figure 8). Torque the bolts to 16 to 20 N∙m (12 to 15 ft-lb).

   

   Figure 8

   1. Drive spline
   2. Motor mount
   3. Allen head bolts

5. On the right end of the cutting unit, apply a light coating of oil to the O-ring and install the counter weight with the bolts previously removed (Figure 9). Torque the bolts to 16 to 20 N∙m (12 to 15 ft-lb).

   

   Figure 9

   1. Counter weight

1. Support the cutting unit; refer to Supporting the Cutting Unit.

2. Adjust the bedknife to the reel.

3. Adjust the rear roller height.

4. Adjust the height of cut.

5. Adjust the cut-off bar.

Refer to Adjusting the Cutting Unit for complete instructions for performing these adjustments.

A selection of Toro approved attachments and accessories is available for use with the machine to enhance and expand its capabilities. Contact your Authorized Service Dealer or authorized Toro distributor or go to www.Toro.com for a list of all approved attachments and accessories.

To ensure optimum performance and continued safety certification of the machine, use only genuine Toro replacement parts and accessories. Replacement parts and accessories made by other manufacturers could be dangerous, and such use could void the product warranty.

Whenever you need to tip the cutting unit to expose the bedknife/reel, prop up the rear of the cutting unit to ensure that the nuts on the back end of the bedbar-adjusting bolts are not resting on the work surface (Figure 18).

Figure 18

1. Prop (not provided)
2. Bedbar-adjusting-screw nut (2)

The new reel has a land width of 0.76 to 1.27 mm (0.030 to 0.050 inch) and a 30 degree relief grind.

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

1. Apply a 30 degree relief grind on all reel blades until the land width is 0.76 to 1.27 mm (0.030 to 0.050 inch) wide (Figure 19.

   

   Figure 19

   1. 30 degrees
   2. 1.3 mm (0.050 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.

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 6 greens, as any burrs will be removed, which may create improper reel to bedknife clearance and thus accelerate wear.

Only a properly trained mechanic should service the bedbar and bedknife to prevent damage to the reel, bedbar, or bedknife. Ideally, take the cutting unit to your authorized Toro distributor for service. Refer to the Service Manual for your traction unit for complete instructions, special tools, and diagrams for servicing the bedknife. Should you ever need to remove or assemble the bedbar yourself, instructions are provided below, as are the specifications for servicing the bedknife.

Important: Always follow the bedknife procedures detailed in your Service Manual when servicing the bedknife. Failure to install and grind the bed knife correctly can lead to damage to the reel, bedbar, or bedknife.

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

Use the angle indicator and the angle-indicator mount 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 24.

   

   Figure 24

   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 25).

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

   

   Figure 25

   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 25.

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

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 26

   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 27

   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.

1. Position the machine on a clean, level surface, lower the cutting units, stop the engine, engage the parking brake, and remove the ignition key.

2. Remove the reel motors from the cutting units and disconnect and remove the cutting units from the lift arms.

3. Connect the backlapping machine to the cutting unit by inserting a piece of 3/8 inch square stock into the splined coupling in the end of the cutting unit.

   Note: Additional instructions and procedures on Backlapping are available in your traction unit Operator’s Manual and the Toro Sharpening Reel and Rotary Mowers Manual, Form Number 80-300PT.

   Note: For a better cutting edge, run a file across the front face of the bedknife and reel when the lapping operation is completed. This will remove any burrs or rough edges that may have built up on the cutting edge.