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Summary of Contents for Toro 78253
- Page 1 Form No. 3326–461 Wheel Horse 52 Mower for Lawn and Garden Tractors Model No. 78253 – 200000001 & Up Operator’s Manual English (GB)
- Page 2 2371 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 Company – 1997 Printed in USA...
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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 GRASS DEFLECTOR ON MOWER LEFT AND (Part No. 93–7317) DISCHARGE CHUTE (Part No. -
Page 5: Installation
Installation Loose Parts Note: Use the chart below to identify parts used for assembly. DESCRIPTION QTY. Gage wheel Shoulder bolt Install gage wheels Locknut 3/8–24 (with patch on threads) Rear link bracket Washer 1/2” (13 mm) Install rear link bracket Cotter pin 1”... -
Page 6: Mower Preparation
Installation Mower Preparation Rotate adjustable links so bolt heads are up and place between brackets, as shown, on front of the Attach gage wheels to the outside of arms on mower (Fig. 3). rear carrier assembly. Grease fitting on wheel Secure to brackets with 1/2”... - Page 7 Installation Place springs into brackets on mower with hooked ends over raised back (Fig. 4). Align grass deflector with holes in brackets and POTENTIAL HAZARD spring straight ends in space under hinge and Without the grass deflector, discharge above deflector (Fig. 4). cover, or complete grass catcher assembly mounted in place, you and others are Secure deflector to bracket with 3/8–3-1/2 (89...
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Page 8: Tractor Preparation
Installation Tractor Preparation Slide lift rod into hole and secure with previously removed washer and E-ring (Fig. 6). Park the machine on a level surface and lower 10. Check that stop is 0”–1/8” (0–3 mm) away frame attachment lift to the full “DOWN” position. when fully assembled and lift in the full “UP”... - Page 9 Installation 11. Unplug clutch wire terminal from tractor wire 14. Install retainer clip and clutch plug–in to right harness and remove retainer clip (Fig 8). side of frame as shown in figure 8. Make sure Remove center retaining bolt and washer then there is no slack in plug–in wire between clutch slide double pulley clutch off shaft (Fig.
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Page 10: Installing The Mower
Installation Installing the Mower Park the machine on a level surface, disengage POTENTIAL HAZARD the power take off (PTO), set the parking brake, Movement of powerlift can injure a person and turn the ignition key to “OFF” to stop the when aligning deck with lift arms. -
Page 11: Transport Height Adjustment
Installation Side-to-Side Mower Leveling 11. Check mower level; refer to Side-to-Side Mower Leveling page 9, and Front-to-Rear Blade Leveling page 10. The mower blades must be level from side to side. Check the side-to-side level any time you install the 12. -
Page 12: Front-To-Rear Blade Slope
Installation Front-to-Rear Blade Slope After adjusting, tighten bolt and check side-to-side level. Check the front-to-rear blade slope any time you IMPORTANT: If hanger is rotated to the end install the mower. Before checking the slope, set air of adjustment on one side and mower is not pressure in the front and rear tires to 20 psi (138 kPa). -
Page 13: Removing The Mower
Installation Removing the Mower To adjust front-to rear blade level loosen jam nuts on front adjustable links. (Fig. 16). Park the machine on a level surface, disengage Rotate the bolt on front adjustable links to the power take off (PTO), set the parking brake, change front-to rear blade level (Fig. -
Page 14: Operation
Operation Side Discharge Operating the Power Take Off (PTO) The power take off (PTO) engages and disengages power to the electric clutch. POTENTIAL HAZARD Without the grass deflector, discharge While the ignition key is in the “RUN” or “LIGHTS” cover, or complete grass catcher assembly positions and the power take off (PTO) is engaged mounted in place, you and others are “ON“, the PTO light, in the Indicator Module, will be... -
Page 15: Attachment Lift Lever
Operation Attachment Lift Lever Attachment Power Lift The attachment lift lever (Fig. 19) is used to raise and The attachment power lift (optional on some models) lower various attachments. (Fig. 20) is used to raise and lower attachments. Raising Attachments Raising Attachments Depress the brake pedal to stop the machine. -
Page 16: Adjusting Dial-A-Height
Operation Adjusting Dial-A-Height Adjusting Anti-Scalp Wheels The Dial-A-Height control (Fig. 19) is used to limit The anti-scalp wheels must be adjusted in the proper the downward travel of the attachment. The hole location for each height-of-cut position. Dial-A-Height knob is rotated to change the location After adjusting height-of-cut. -
Page 17: Tips For Mowing Grass
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... -
Page 18: Maintenance
Maintenance Service Interval Chart Each Spring Service Operation Notes Hours Hours Hours 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 19: Cutting Blade
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 20 Maintenance Sharpening the Blade(s) Installing the Blade(s) Use a file to sharpen the cutting edge at both Install the blade, blade stiffener and bolt ends of the blade (Fig. 24). Maintain the original (Fig. 26). 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...
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Page 21: Greasing And Lubrication
Maintenance Greasing and Lubrication Blade Drive Belt Service Interval/Specification Removing the Blade Drive Belt Grease the mower after every 50 operating hours or Remove the mower; refer to Removing the once a year, whichever occurs first. Grease more Mower, page 11. frequently when operating conditions are extremely Remove pulley cover mounting screws and dusty or sandy. -
Page 22: Power Take Off (Pto) Belt
Maintenance Adjust idler spring tension until length between Adjust belt guide so distance between belt and hooks is 5-1/2” (140 mm) (Fig. 29). guide is 1/8” (4 mm) (Fig. 30). m–2418 2417 Figure 29 Figure 30 Top View 1. Left pully cover 3. - Page 23 Maintenance Repeat washing with hose attached to right washout fitting. Turn the water off, remove hose coupling from POTENTIAL HAZARD the washout fitting. A broken or missing washout fitting could expose you and others to thrown objects or Note: If the mower is not clean after one blade contact.
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Page 24: 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 25: 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. - Page 26 Troubleshooting...
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