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Toro 78261 Operator's Manual
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Toro 78261 Operator's Manual

Wheel horse 48" mower for lawn and garden tractors
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FORM NO. 3322–353
Wheel Horse
48" Mower
for
Lawn and Garden Tractors
Model No. 78261 – 9900001 & Up
Operator's Manual
IMPORTANT: Read this manual carefully. It contains information about your
safety and the safety of others. Also become familiar with the controls and
their proper use before you operate the product.

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Summary of Contents for Toro 78261

  • Page 1 Wheel Horse 48” Mower Lawn and Garden Tractors Model No. 78261 – 9900001 & Up Operator’s Manual IMPORTANT: Read this manual carefully. It contains information about your safety and the safety of others. Also become familiar with the controls and...
  • Page 2 Introduction We want you to be completely satisfied with your The warning system in this manual identifies new product, so feel free to contact your local potential hazards and has special safety messages that Authorized Service Dealer for help with service, help you and others avoid personal injury, even death.

  • Page 3: Table Of Contents

    Contents Page Page Attachment Power Lift ....Safety and Instruction Decals ....Adjusting Dial-A-Height .

  • Page 4: Safety And Instruction Decals

    Safety Safety and Instruction Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or lost. ON DISCHARGE CHUTE ON MOWER LEFT AND (Part No. 93–1122) RIGHT SIDES (Part No.

  • Page 5: Assembly

    Assembly Loose Parts Note: Use the chart below to identify parts used for assembly. DESCRIPTION QTY. Discharge chute Torsion spring Washer (1/2”) Cotter pin (3/4”) Install discharge chute Plastic washer Rubber bushing Jam nut (3/8”–16) Rear link Washer (1/2”) Install rear link Cotter pin (1”) Hairpin cotter (2–9/16”) Adjustable link...

  • Page 6: Installing Discharge Chute

    Assembly Installing Discharge Chute Locate items shown in Fig. 1. POTENTIAL HAZARD Without the discharge chute or the Place the short end of the spring into the small complete grass catcher assembly mounted hole in the discharge chute. in place, you and others are exposed to Position spring and discharge chute over post on blade contact and thrown debris.

  • Page 7: Install Rear And Adjustable Links

    Assembly Install Rear and Adjustable Installing the Mower Links Park the tractor on a flat surface, disengage the power take off (PTO), set the parking brake, and Install rear link to center wheel shaft bracket turn the ignition key to “OFF” to stop the with 1/2”...
  • Page 8 Assembly Attach rear link to attachment lift with 1/2” washer and 2–9/16” hairpin cotter (Fig. 2 & 4). Install both front adjustable links to front lift arms with (2) 1/2” washers and (2) 2–9/16” hairpin cotters (Fig. 3 & 5). m–3621 Figure 6 Top View...

  • Page 9: Transport Height Adjustment

    Assembly Transport Height Adjustment 2-3/4” to 4” Height-of-Cut Range When the mower height-of-cut is set to the 2-3/4” to Transport height is set at the factory and should not 4” range, the mower is suspended from the tractor. need adjustment; however, if the belt covers contact the footrest in the raised position, adjustment is Park the tractor on a flat surface, disengage the required.

  • Page 10: Front-To-Rear Blade Slope

    Assembly IMPORTANT: If hanger is rotated to the end Front-to-Rear Blade Slope of adjustment on one side and mower is not level, adjust the opposite side. Check the front-to-rear blade slope any time you install the mower. Before checking the slope, set air pressure in the front and rear tires as specified in the tractor operator’s manual.

  • Page 11: Removing The Mower

    Assembly To adjust front-to rear blade level loosen the jam Removing the Mower nut on both front adjustable links. (Fig. 11). Park the tractor on a flat surface, disengage the Note: 48” mower has two adjustable links. power take off (PTO), set the parking brake, and Adjust one side first, then snug up the turn the ignition key to “OFF”...
  • Page 12 Assembly m–3619 Figure 13 1. Lift arm 4. Rear link 2. Washer 5. Attachment lift 3. Hair pin cotter Turn the front wheels fully to the left and raise attachment lift lever all the way to the latched position; refer to tractor Operator’s Manual. Slide the mower out from under the chassis to the the right side (Fig.

  • Page 13: Operation

    Operation Side Discharge While the ignition key is in the “RUN” or “LIGHTS” positions and the power take off (PTO) is engaged “ON“, the PTO light, in the Indicator Module, will be The mower has a hinged discharge chute that “ON“.

  • Page 14: Attachment Lift Lever

    Operation Attachment Lift Lever Attachment Power Lift The attachment lift lever (on some models) (Fig. 16) The attachment power lift (on some models) (Fig. 17) is used to raise and lower various attachments. is used to raise and lower attachments. Raising Attachments Raising Attachments Depress the brake pedal to stop the machine.

  • Page 15: Adjusting Dial-A-Height

    Operation Adjusting Dial-A-Height The Dial-A-Height control (Fig. 16) is used to limit the downward travel of the attachment. The Dial-A-Height knob is rotated to change the location of this stop, up or down. Raise the attachment lift lever: Refer to Raising Attachments.

  • Page 16: Adjusting Outer Anti-Scalp Wheels

    Operation Adjusting Outer Anti–Scalp Using the Mower for the First Time Wheels Cut grass slightly longer than normal to ensure the cutting height of the mower does not scalp any uneven ground. However, the cutting height used in The outer anti–scalp wheels must be adjusted in the the past is generally the best one to use.

  • Page 17: Ground Speed

    Operation Ground Speed Blade Maintenance To improve cut quality, use slower ground speed. For Maintain a sharp blade throughout the cutting season best operation on average lawns, operate engine at because a sharp blade cuts cleanly without tearing or full throttle while controlling ground speed with shredding the grass blades.

  • Page 18: Maintenance

    Maintenance Service Interval Chart Each Storage Service Operation Notes Hours Hours Hours Service Cutter Blade—check Grease–Mower deck Belts—check for wear/cracks Mower Housing—clean Chipped Surfaces—paint Tires—check pressure POTENTIAL HAZARD If you leave the key in the ignition switch, someone could start the engine. WHAT CAN HAPPEN Accidental starting of the engine could seriously injure you or other bystanders.

  • Page 19: Cutting Blade

    Maintenance Cutting Blade To ensure a superior quality of cut, keep the blade(s) sharp. For convenient sharpening and replacement, you may want to have an extra blade(s). POTENTIAL HAZARD A blade that is worn or damaged could break apart and pieces could be thrown at bystanders or at you as you use the mower.
  • Page 20 Maintenance Sharpening the Blade(s) Installing the Blade(s) Use a file to sharpen the cutting edge at both Install the washer, blade, flat washer, and the ends of the blade (Fig. 22). Maintain the original blade nut (Fig. 24). angle. The blade retains its balance if the same IMPORTANT: The curved part of the blade amount of material is removed from both cutting must be pointing up to ensure proper cutting.

  • Page 21: Greasing And Lubrication

    Maintenance Greasing and Lubrication Blade Drive Belt Service Interval/Specification Removing the Blade Drive Belt Grease the machine after every 50 operating hours or Remove the mower; refer to Removing the once a year, whichever occurs first. Grease more Mower, page 9. frequently when operating conditions are extremely Remove the pulley cover mounting screws and dusty or sandy.

  • Page 22: Washing The Underside Of The Mower

    Maintenance Washing the Underside of the Mower After each use wash the underside of the mower to prevent grass build-up and improve performance. Park the tractor on a hard level surface. Apply the parking brake, start the tractor, and raise the attachment lift. m–3586 Get off the tractor.

  • Page 23: Storage

    Maintenance Storage Clean dirt and chaff from the outside of the engine’s cylinder head fins and blower housing. Also remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine, shrouding, and the top of the mower.

  • Page 24: Troubleshooting

    Troubleshooting PROBLEM POSSIBLE CAUSES CORRECTIVE ACTION Abnormal vibration. Cutting blade(s) is bent or Install new cutting blade(s). unbalanced. Blade mounting bolt is loose. Tighten blade mounting bolt. Engine mounting bolts are Tighten engine mounting loose. bolts. Loose engine pulley, idler Tighten the appropriate pulley, or blade pulley.

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