Toro 78449 Operator's Manual

48in side discharge mower for 5xi garden tractors

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Form No. 3326-570
48in Side Discharge Mower
for 5xi Garden Tractors
Model No. 78449—Serial No. 230000001 and Up
Operator's Manual
Original Instructions (GB)

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Table of Contents
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Summary of Contents for Toro 78449

  • Page 1 Form No. 3326-570 48in Side Discharge Mower for 5xi Garden Tractors Model No. 78449—Serial No. 230000001 and Up Operator’s Manual Original Instructions (GB)
  • Page 2: Table Of Contents

    Note: emphasizes general information additional information, contact an Authorized Service worthy of special attention. Dealer or Toro Customer Service and have the model and serial numbers of your product ready. Figure 1 illustrates the location of the model and serial numbers on the product.
  • Page 3: Safety And Instruction Decals

    Safety and Instruction Decals This machine meets or exceeds the EN 836-1997 and ISO 5395-2001 specifications in effect at the time of production. However, improper use or maintenance by the operator or owner 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.”...
  • Page 4: Setup

    Setup Note: Determine the left and right sides of the machine from the normal operating position. Loose Parts Note: Use the chart below to identify parts used for assembly. Description Qty. Discharge chute Nylon washer, 3/8 in. Spring Rubber bushing Install the discharge chute Flat washer, 1/2 in.
  • Page 5: Installing The Mower

    Mower Belt Routing Route the mower belt as shown in Fig. 3. Ensure that you install the belt on the lower mower deck pulley. m–3433 m-3525 Figure 4 Figure 3 1. Clevis pin 2. Hairpin cotter Top View 1. Mower belt 2.
  • Page 6 Attaching the Mower 1. Set the mower wheels for the lowest height of cut. 2. Move the attachment lift to the full up position. 3. From the right side of the tractor, slide the mower under the tractor. 4. Position the mower so that the slots in the side of each of the mower mounting brackets (Fig.
  • Page 7: Attaching The Pto Drive Belt

    Caution Components under the hood will be hot if the tractor has been running. If you touch hot components you may be burned. Allow the tractor to cool before performing maintenance or touching components under the hood. 2. Release the belt tension release arm on the pulley box housing and swing it out toward you (Fig.
  • Page 8: Adjusting The Mower

    5. Hang the belt over the mower, then thread it forward D. Swing the tension release arm into the pulley box through the belt guide (Fig. 12) on the mower. and seat it by moving it into the position shown in Figure 10.
  • Page 9 Front m–3474 m–3528 Figure 15 Figure 16 1. Height-of-cut lever 3. High 2. Quadrant 4. Low 1. Blade oriented front to 3. Rotate front tip to rear rear and measure 2. Measure front blade tip 4. Measure here (side to side) 3.
  • Page 10 Adjusting the Side-to-Side Blade Cut This optional adjustment is available if necessary to compensate for uneven side-to-side cut. Equalize side-to-side cut by adjusting the two carriage bolts (Fig. 18) on the mower. Check the height of the blade at outside blade tips (Fig. 16). m–3518 Figure 19 m–3459...
  • Page 11: Removing The Mower

    When the blade tip is in the front position, it should be approximately 1/4 in. (7 mm) lower than when it is in the rear position. 7. To adjust the blade slope, start the tractor, lower the attachment lift to take pressure off the cams, stop the engine, and remove the ignition key.
  • Page 12: Operation

    m–5511 m–3457 Figure 24 Figure 22 1. Front Attach–A–Matic 3. Pulley box 1. Mid Attach-A-Matic 2. Mid Attach-A-Matic button (one on each side) button lever 2. Front Attach–A–Matic latches 10. Pull the two spring loaded J-pins from the deck lift arms and twist them slightly so that they stay disengaged 12.
  • Page 13: Operating The Mower

    Check for Debris You can also purchase various grass baggers and catchers from your Authorized Toro Dealer that you can install on Each time you use the mower, be sure to check for debris your mower and tractor. A grass bagger/catcher catches the build up on and inside the rear transaxle cover (Fig.
  • Page 14: Maintenance

    To improve cut quality, use slower ground speed. For To cut long or wet grass, raise the cutting height and cut best results on average lawns, operate the engine at full the grass. Then, cut the grass again using the lower, throttle while controlling the ground speed with the normal setting.
  • Page 15: Servicing The Blades

    Servicing the Blades Note: A block of wood may be wedged between the blade and the mower to lock the blade when you are removing the nut. To ensure a superior quality of cut, keep the blades sharp. For convenient sharpening and replacement, you may want 3.
  • Page 16: Greasing The Blade Spindles

    Installing the Blades 2. Clean the grease fittings (Fig. 33) with a rag. Important There are two different sizes and shapes of blades. The shorter blade goes into the center spindle. The two longer blades go on the outside spindles (Fig. 32). See figure 31 for the shape difference.
  • Page 17: Extending Pto Drive Belt Life

    2. Remove the pulley cover mounting screws and pulley covers from the blade pulleys (Fig. 35). m–3458 Figure 34 1. Belt tension release arm 4. Seating position for m-3525 tension arm 2. Belt tension indicators Figure 35 5. Belt tension released 3.
  • Page 18: Storage

    9. Turn the water off and remove the hose coupling from the washout fitting. Note: If the mower is not clean after one washing, soak it and let it stand for 30 minutes. Then repeat the process. 10. Run the mower again for one to three minutes to remove excess water.
  • Page 19: Troubleshooting

    Troubleshooting Problem Possible Causes Corrective Action Abnormal vibration. 1. A blade is bent or unbalanced. 1. Install new blades. 2. A blade mounting bolt is loose. 2. Tighten the blade mounting bolts. 3. The engine mounting bolts are 3. Tighten the engine mounting loose.
  • Page 20 Problem Possible Causes Corrective Action PTO drive belt comes off of 1. The belt tension is incorrect. 1. Adjust the belt tension. pulleys,slips or fails. f il 2. The mower level is incorrect. 2. Adjust the mower level. 3. The blade slope in transport is 3.

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