Toro Wheel Horse 78345 Operator's Manual
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Toro Wheel Horse 78345 Operator's Manual

Toro Wheel Horse 78345 Operator's Manual

Discharge mower for classic garden tractor
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FORM NO. 3318–947 Rev A
Wheel Horse
42" Side Discharge
Mower
for
Classic Garden Tractor
Model No. 78345 – 7900001 & 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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  • Page 1 FORM NO. 3318–947 Rev A Wheel Horse 42” Side Discharge Mower Classic Garden Tractor Model No. 78345 – 7900001 & 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.
  • Page 2 1. Model and Serial Number Plate For your convenience, write the product model and serial numbers in the space below. Model No: Serial No. The TORO Co. – 1996 Printed in USA...

  • Page 3: Table Of Contents

    Contents Page Page Attachment Lift Lever ....Safety and Instruction Decals ....Attachment Power Lift .

  • 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 GRASS DEFLECTOR ON MOWER (Part No. 93–1122) LEFT AND RIGHT SIDES (Part No.

  • Page 5: Assembly

    Assembly Loose Parts Note: Use the chart below to identify parts used for assembly. DESCRIPTION QTY. Grass deflector Torsion spring Washer 1/2” (13 mm) Cotter pin 3/4” (19 mm) Install grass deflector Plastic washer Rubber bushing Jam nut 3/8–16 V belt Idler assembly Install mower to tractor Belt cover...

  • Page 6: Installing Discharge Chute

    Assembly Installing Discharge Chute Locate items show (Fig. 1). POTENTIAL HAZARD Without the grass deflector, discharge Place spring short end into small hole in the cover, or complete grass catcher assembly discharge chute. mounted in place, you and others are Position spring and discharge chute over post on exposed to blade contact and thrown rear of deck and secure with 1/2”...

  • Page 7: Attach Adjustable Link

    Assembly Attach Adjustable Link Installing the Mower Place adjustable link trunnion into rear wheel Park the machine on a level surface, disengage shaft bracket and secure with hairpin cotter the power take off (PTO), set the parking brake, (Fig. 2). and turn the ignition key to “OFF”...
  • Page 8 Assembly Slide the mower under the chassis from the right Rotate front mounting shaft so fork faces up and side and align attachment lift with slot in center align so spacers are between mid-mount hitch lever bar (Fig. 4). plates (Fig. 5). Straighten the front wheels, turn Dial-A-Height Lift mower with attachment lift and guide fork knob counterclockwise, all the way, and lower...
  • Page 9 Assembly 10. Remove hairpin cotters from trunnion and 15. Route belt around V and flat pulleys and loop bottom of yoke (Fig. 7). over center mower spindle, top pulley.(Fig. 9). 11. Unlatch and remove locking clevis pin that 16. Check that spacer is on shaft and install belt secures yoke assembly to clutch shaft.

  • Page 10: Front-To-Rear Blade Slope

    Assembly Front-to-Rear Blade Slope To adjust front-to rear blade slope turn locknut on rear adjustable link (Fig. 11). Check the front-to-rear blade slope any time you Note: To raise the front of the mower, turn install the mower. Before checking the slope, set air locknut clockwise, to lower front turn pressure in the front and rear tires to 12 psi (.85 kPa).

  • Page 11: Transport Height Adjustment

    Assembly Transport Height Adjustment Removing the Mower Transport height is adjusted to stabilize the mower in Park the machine on a level surface, disengage the up, locked position. the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the Raise attachment lift lever all the way to the engine.
  • Page 12 Assembly Remove hairpin cotters from trunnion and Raise attachment lift lever to the mounting bottom of yoke (Fig. 15). position; refer to tractor Operator’s Manual. Unlatch and remove locking clevis pin that 10. Open mid-mount hitch lock handle. Lower secures yoke assembly to clutch shaft. Pivot mower with attachment lift and remove front yoke out and forward to remove from clutch mounting shaft (Fig.

  • Page 13: Operation

    Maintenance Service Interval Chart Each Storage Spring Service Operation Notes Hours Hours Service Service Cutter Blade—check Grease–Mower spindles, wheels Belts—check for wear/cracks Mower Housing—clean Chipped Surfaces—paint 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 14: Attachment Lift Lever

    Maintenance Cutting Blade To assure 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 15: Adjusting Height-Of-Cut

    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. 21). Maintain the original blade nut (Fig. 23). 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 toward the inside of the...

  • Page 16: Tips For Mowing Grass

    Maintenance Greasing and Lubrication Blade Drive Belt Service Interval/Specification Removing the Blade Drive Belt Grease the mower after every 25 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 pulley cover mounting screws and dusty or sandy.

  • Page 17: Maintenance

    Maintenance Power Take Off (PTO) Belt Unlatch and remove locking clevis pin that secures yoke assembly to clutch shaft. Pivot yoke out and forward to remove from clutch Remove the two wing nuts and belt cover from shaft and engagement plate (Fig. 28). the tractor (Fig.

  • Page 18: Cutting Blade

    Maintenance Route belt around V and flat pulleys and loop Storage over center mower spindle, top pulley.(Fig. 29). Clean dirt and chaff from the outside of the Check that spacer is on shaft and install belt engine’s cylinder head fins and blower housing. cover with rod in hole.
  • Page 19 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.

  • Page 20: Greasing And Lubrication

    Operation Side Discharge Operating the Power Take Off (PTO) The power take off (PTO) engages and disengages power to the clutch. POTENTIAL HAZARD Without the grass deflector, discharge While the ignition key is in “RUN” position and the cover, or complete grass catcher assembly power take off (PTO) is engaged, the PTO light in the mounted in place, you and others are Indicator Module, will be “ON”.
  • Page 21 Operation Attachment Lift Lever Attachment Power Lift The attachment lift lever (Fig. 31) is used to raise and The attachment power lift (Fig. 32) is used to raise lower various attachments. and lower attachments. Raising Attachments Raising Attachments Depress the clutch and brake pedals to stop the Start the engine, refer to;...
  • Page 22 Operation Adjusting Height-of-Cut The rear gauge wheels are adjusted in different hole location for 1-1/2–3-1/2” (4–9 cm) height-of-cut. Pull height-of-cut lever out to disengage from quadrant. Adjust height-of-cut to the desired level. Release lever inward to lock into quadrant (Fig. 33). m–2827 Figure 33 1.

  • Page 23: Troubleshooting

    Operation Tips for Mowing Grass Ground Speed To improve cut quality, use slower ground speed. Fast Throttle Setting For best mowing and maximum air circulation, Avoid Cutting Too Low operate the engine at “FAST.” Air is required to thoroughly cut grass clippings, so do not set the If the cutting width of the mower is wider than the height-of-cut so low, as to totally surround the mower mower you previously used, raise the cutting height...

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