Form No. 3428-584 Rev A 18-inch or 22-inch 8-Blade or 11-Blade DPA Cutting Unit Reelmaster® 3550 or 3555 Traction Unit Model No. Model No. Model No. Model No. Register at www.Toro.com. Original Instructions (EN) 03485—Serial No. 03486—Serial No. 03487—Serial No. 03488—Serial No.
This product complies with all relevant European directives. For details, please see the Declaration of Incorporation (DOI) at the back of this publication. Model No. Serial No. This manual identifies potential hazards and has safety messages identified by the safety-alert symbol (Figure 2), which signals a hazard that may cause serious injury or death if you do not follow the recommended precautions.
Safety 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. This machine has been designed in accordance with EN ISO 5395 and ANSI B71.4–2017. General Safety This product is capable of amputating hands and feet.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure 1 2 3 Description Use Qty. Straight grease fitting 1 Install the reel grease fitting. No parts required – Adjust the cutting unit O-ring Cap screws (may come assembled) 1 2 Install the reel motors. Media and Additional Parts Description Qty.
3 Installing the Reel Motors Parts needed for this procedure: g031255 Figure 4 1. Cap screw (2) 3. Grease fitting 2. Setscrew 4. Grease vent 2. 1 O-ring 2 Cap screws (may come assembled) Procedure Important: Before installing the reel motors, obtain and install the counter weights or other accessories on the opposite side of the cutting units from the reel motors as described in the instructions provided with the weights or accessories. Install the straight grease fitting (Figure 4). 2 1.
Product Overview Operation Specifications Note: Determine the left and right sides of the machine from the normal operating position. Model Number Weight 03485 37 kg (82 lb) 03486 39 kg (85 lb) 03487 42 kg (92 lb) 03488 44 kg (97 lb) Adjusting the Cutting Unit Adjusting the Rear Shield Under most conditions, you can attain the best clipping dispersion when the rear shield is closed (front discharge). When conditions are heavy or wet, you may open the rear shield.
2. Test the cutting performance by inserting a long strip of cutting performance paper (Toro Part 125-5610) between the reel and the bedknife, perpendicular to the bedknife (Figure 7). Slowly rotate the reel forward; it should cut the paper. g031270 Figure 8 1. Lead-in chamfer on right end of bedknife 2. 6 mm (0.25 inch) g027166 Figure 7 3. 1.5 mm (0.060 inch) Note: Do not make the lead-in chamfer too large as it may cause turf tufting.
Note: If starting with a large gap, both sides should initially be drawn closer by alternately tightening the right and left sides. 7. Slowly rotate the reel so that the same blade that you checked on the right side is crossing the bedknife approximately 25 mm (1 inch) in from the end of the bedknife on the left side of the cutting unit. 8. Turn the left bedbar adjuster clockwise until the shim can be slid through the reel to bedknife gap with light drag. 9.
Adjusting the Rear Roller 1. Adjust the rear roller brackets (Figure 12) to the desired height-of-cut range by positioning the required amount of spacers below the side-plate mounting flange (Figure 12) per the HOC Chart. g027270 Figure 13 1. Side-plate mounting cap screws Adjusting the Turf-Compensation Settings g003324 Figure 12 1. Spacer 3. Side-plate mounting flange The turf-compensation spring transfers the weight from the front to the rear roller.
Adjusting the Height of Cut (HOC) ends of roller until the entire roller is parallel to the bedknife. Note: For heights of cut greater than 2.54 cm (1 inch) install the High Height-of-Cut Kit. 1. Loosen the locknuts securing the height-of-cut brackets to the cutting-unit side plates (Figure 15). g027266 Figure 17 Important: When set properly, the rear and front rollers will contact the gauge bar and the screw will be snug against the bedknife.
Height-of-Cut Chart HOC Setting Aggressiveness of Cut No. of Rear Spacers No. of Chain Links Less 0 Normal 0 More 1 Less 0 0.95 cm (0.375 inch ) Normal 1 More 2 Less 0 1.27 cm (0.500 inch) Normal 1 More 2 Less 1 1.56 cm (0.625 inch) Normal 2 More 3 Less 2 1.91 cm (0.750 inch) Normal 3 More 4 Less 2 2.22 cm (0.875 inch) Normal 3 More 4 Less 3 2.54 cm (1.000 inch) Normal 4 5 More Less 4 2.86 cm (1.125 inches)* 5 Normal More 6 Less 4 3.18 cm (1.250 inches)* 5 Normal More 6 Less 4 3.49 cm (1.
Use the following chart to determine which bedknife is best suited for the desired height of cut. Bedknife/Height of Cut Chart Bedknife Part No. Bedknife Lip Height Height of Cut Low HOC (Optional) 121-3167 (18 inch) 5.6 mm 6.4 to 12.7 mm 110-4084 (22 inch) (0.220 inch) (0.250 to 0.500 inch) 5.6 mm 6.4 to 12.7 mm (0.220 inch) (0.250 to 0.
g033036 Figure 19 1. Rear spacers 3. Aggressiveness of cut 2. Side-plate mounting flange Rear Spacers The number of rear spacers determines the aggressiveness of cut for the cutting unit. For a given height of cut, adding spacers below the side-plate mounting flange increases the aggressiveness of the cutting unit. All cutting units on a given machine must be set to the same aggressiveness of cut (number of rear spacers, Toro Part No.
Maintenance Using the Kickstand When Tipping the Cutting Unit Whenever the cutting unit has to be tipped to expose the bedknife/reel, prop up the rear of the cutting unit with the kickstand (supplied with the traction unit) to make sure that the nuts on the back end of the bedbar adjusting screws are not resting on the work surface (Figure 21). g027267 Figure 22 Grease fittings on the reel-motor side Relief-Grinding the Reel The reel has a land width of 1.3 to 1.5 mm (0.050 to 0.
g028838 Figure 24 Models 03486 and 03488 1. 1.3 mm (0.050 inch) 2. 2. 30 degrees Spin grind the reel to achieve <0.025 mm (0.001 inch) reel run-out. Note: This causes the land width to grow slightly.
Servicing the Bedknife The bedknife service limits are listed in the following chart. Important: Operating the cutting unit with the bedknife below the service limit may result in poor after-cut appearance and reduce the structural integrity of the bedknife for impacts. Bedknife Service Limit Chart Bedknife Part No. Bedknife Lip Height* Service Limit* Low HOC (Optional) 121-3167 (18 inch) 110-4084 (22 inch) 5.6 mm (0.220 inch) 4.8 mm (0.190 inch) 137-0830 (18 inch) 137-0832 (22 inch) 5.6 mm (0.
Servicing the Bedbar Removing the Bedbar 1. Turn the bedbar-adjusting screws counterclockwise to back the bedknife away from the reel (Figure 29). g034113 Figure 27 2. Angle indicator 1. Bedknife (vertical) 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 is mated with the edge of the bedknife (Figure 28).
g027176 Figure 31 1. Bedbar bolt 2. Nut 3. Steel washer 4. Nylon washer Assembling the Bedbar 1. Install the bedbar, positioning the mounting ears between the washer and the bedbar adjuster. 2. Secure the bedbar to each side plate with the bedbar bolts (nuts on bolts) and the 6 washers. Note: Position a nylon washer on each side g279161 Figure 33 of the side-plate boss. Place a steel washer outside each of the nylon washers (Figure 31). 3. 1. Bedbar 2.
Servicing the HD Dual Point Adjusters (DPA) 1. Remove all parts; refer to Installation Instructions for HD DPA Kit Model 120-7230 and to Figure 35. 2. Apply anti-seize compound to the inside of the bushing area on the center cutting unit frame (Figure 35). 3. Align the keys on the flange bushings to the slots in the frame and install the bushings (Figure 35). 4.
g016355 Figure 35 2. Wave washer 4. Apply anti-seize compound here. 5. Flat washer 7. Apply anti-seize compound 10. Compression spring here. 8. Bedbar-adjuster screw 11. Spring-tension nut 3. Flange bushing 6. Locknut 9. Hardened washer 1.
Servicing the Roller nuts, inner seals, and outer seals to rebuild a roller. The Roller Rebuild Tool Kit includes all the tools and the installation instructions required to rebuild a roller with the Roller Rebuild Kit. Refer to your Parts Catalog or contact your distributor for assistance. The Roller Rebuild Kit and the Roller Rebuild Tool Kit (Figure 36) are available for servicing the roller. The Roller Rebuild Kit includes all the bearings, bearing g007790 Figure 36 1. Rebuild kit (Part No.
Declaration of Incorporation The Toro Company, 8111 Lyndale Ave. South, Bloomington, MN, USA declares that the following unit(s) conform(s) to the directives listed, when installed in accordance with the accompanying instructions onto certain Toro models as indicated on the relevant Declarations of Conformity. Model No. Serial No.
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The Toro Warranty Two-Year or 1,500 Hours Limited Warranty Conditions and Products Covered Parts The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly warrant your Toro Commercial product (“Product”) to be free from defects in materials or workmanship for 2 years or 1,500 operational hours*, whichever occurs first. This warranty is applicable to all products with the exception of Aerators (refer to separate warranty statements for these products).
