Form No. 3326–461 Wheel Horse 52 Mower for Lawn and Garden Tractors Model No.
Introduction We want you to be completely satisfied with your new product, so feel free to contact your local Authorized Service Dealer for help with service, genuine replacement parts, or other information you may require. Whenever you contact your Authorized Service Dealer or the factory, always know the model and serial numbers of your product. These numbers will help the Service Dealer or Service Representative provide exact information about your specific product.
Contents Safety and Instruction Decals . . . . . . . . . . . . . . Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loose Parts . . . . . . . . . . . . . . . . . . . . . . . . . Mower Preparation . . . . . . . . . . . . . . . . . . . Tractor Preparation . . . . . . . . . . . . . . . . . . . Installing the Mower . . . . . . . . . . . . . . . . . Transport Height Adjustment . . . . . . . . . . . Side-to-Side Mower Leveling . . . . . . . . . . Front-to-Rear Blade Slope . . . . . . . . . .
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. 2 ON GRASS DEFLECTOR (Part No. 93–7317) ON MOWER LEFT AND DISCHARGE CHUTE (Part No. 93–7316) NEXT TO GAGE WHEELS (Part No. 93–7282) UNDER GRASS DEFLECTOR (Part No. 93–7009) ON MOWER LEFT SIDE (Part No. 94–2543) ON MOWER REAR CENTER (Part No.
Installation Loose Parts Note: Use the chart below to identify parts used for assembly. DESCRIPTION QTY.
Installation Mower Preparation 1. Attach gage wheels to the outside of arms on rear carrier assembly. Grease fitting on wheel must face in (Fig. 1). 2. 5. Rotate adjustable links so bolt heads are up and place between brackets, as shown, on front of the mower (Fig. 3). 6. Secure to brackets with 1/2” washers and 1” (26 mm) cotter pins (Fig. 3). Secure with shoulder bolt and 3/8” lock nut, with internal locking patch on threads (Fig. 1). Note: 1 Grease wheels.
Installation 7. Place springs into brackets on mower with hooked ends over raised back (Fig. 4). 8. Align grass deflector with holes in brackets and spring straight ends in space under hinge and above deflector (Fig. 4). 9. Secure deflector to bracket with 3/8–3-1/2 (89 mm) bolts through grass deflector, springs and brackets. Secure with 3/8” lock nuts (Fig. 4).
Installation Tractor Preparation 1. 9. Park the machine on a level surface and lower attachment lift to the full “DOWN” position. Refer to Operation: Attachment Lift page 13. Note: Slide lift rod into hole and secure with previously removed washer and E-ring (Fig. 6). 10. Check that stop is 0”–1/8” (0–3 mm) away frame when fully assembled and lift in the full “UP” position. Turn Dial-A-Height control to allow lift to go to full “MOUNTING” position. 5 4 2.
Installation 11. Unplug clutch wire terminal from tractor wire harness and remove retainer clip (Fig 8). Remove center retaining bolt and washer then slide double pulley clutch off shaft (Fig. 7). Note: Note: 14. Install retainer clip and clutch plug–in to right side of frame as shown in figure 8. Make sure there is no slack in plug–in wire between clutch and retainer clip. Center bolt is installed with thread locking compound, impact wrench may be required to remove.
Installation Installing the Mower 1. Park the machine on a level surface, disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key. 2. Turn the front wheels straight ahead and raise attachment lift lever all the way to the latched position; refer to tractor Operator’s Manual. 3. 4. POTENTIAL HAZARD • Movement of powerlift can injure a person when aligning deck with lift arms.
Installation 11. Check mower level; refer to Side-to-Side Mower Leveling page 9, and Front-to-Rear Blade Leveling page 10. 12. Raise attachment lift lever all the way to the latched position and adjust mower transport height adjustment; refer to page 9. Side-to-Side Mower Leveling The mower blades must be level from side to side. Check the side-to-side level any time you install the mower or when you see an uneven cut on your lawn.
Installation 5. Front-to-Rear Blade Slope After adjusting, tighten bolt and check side-to-side level. IMPORTANT: If hanger is rotated to the end of adjustment on one side and mower is not level, adjust the opposite side. 1 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 to 20 psi (138 kPa). If the front blade tip is not 0–3/8” (0–9.
Installation 6. To adjust front-to rear blade level loosen jam nuts on front adjustable links. (Fig. 16). 7. Rotate the bolt on front adjustable links to change front-to rear blade level (Fig. 16). Note: To raise the front of the mower, shorten the adjustable links by turning bolt clockwise. Adjust both sides evenly. Removing the Mower 1. Park the machine on a level surface, disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine.
Operation Side Discharge POTENTIAL HAZARD • Without the grass deflector, discharge cover, or complete grass catcher assembly mounted in place, you and others are exposed to blade contact and thrown debris. WHAT CAN HAPPEN • Contact with rotating mower blade(s) and thrown debris will cause injury or death. HOW TO AVOID THE HAZARD • NEVER remove the grass deflector from the mower because the grass deflector routes material down toward the turf. If the grass deflector is ever damaged, replace it immediately.
Operation Attachment Lift Lever Attachment Power Lift The attachment lift lever (Fig. 19) is used to raise and lower various attachments. The attachment power lift (optional on some models) (Fig. 20) is used to raise and lower attachments. Raising Attachments Raising Attachments 1. Depress the brake pedal to stop the machine. 1. Turn key to the “ON” or “RUN” position (Fig. 20). 2. Pull attachment lift lever rearward until latch locks.
Operation Adjusting Dial-A-Height Adjusting Anti-Scalp Wheels The Dial-A-Height control (Fig. 19) 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. The anti-scalp wheels must be adjusted in the proper hole location for each height-of-cut position. 1. 2. Raise the attachment lift lever: Refer to Raising Attachments. In the raised, position the Dial-A-Height knob (Fig.
Operation Tips for Mowing Grass Fast Throttle Setting Ground Speed To improve cut quality, use slower ground speed. For best mowing and maximum air circulation, operate the engine at “FAST.” Air is required to thoroughly cut grass clippings, so do not set the height-of-cut so low, as to totally surround the mower by uncut grass. Always try to have one side of the mower free from uncut grass, which allows air to be drawn into the mower.
Maintenance Service Interval Chart Service Operation Each Use Cutter Blade—check 5 Hours 25 Hours X X Grease–Mower spindles, wheels Chipped Surfaces—paint Spring Service Notes X X Belts—check for wear/cracks Mower Housing—clean 50 Hours X X X X X X 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.
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). 1 2 3 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. WHAT CAN HAPPEN • Pieces of blade that may be thrown could 151 Figure 22 1. Cutting edge 2. Curved area 3. Wear/slot forming seriously injure or kill you or bystanders.
Maintenance Sharpening the Blade(s) Installing the Blade(s) 1. 1. Use a file to sharpen the cutting edge at both ends of the blade (Fig. 24). Maintain the original angle. The blade retains its balance if the same amount of material is removed from both cutting edges. Install the blade, blade stiffener and bolt (Fig. 26). IMPORTANT: The curved part of the blade must be pointing toward the inside of the mower to assure proper cutting. 2. Tighten the bolt to 80-100 ft–lb (109-136 Nm).
Maintenance Greasing and Lubrication Blade Drive Belt Service Interval/Specification Removing the Blade Drive Belt Grease the mower after every 50 operating hours or once a year, whichever occurs first. Grease more frequently when operating conditions are extremely dusty or sandy. 1. Remove the mower; refer to Removing the Mower, page 11. 2. Remove pulley cover mounting screws and pulley covers from both blade pulleys. 3. Loosen idler spring and remove the belt from the pulleys (Fig. 29).
Maintenance 2. Adjust idler spring tension until length between hooks is 5-1/2” (140 mm) (Fig. 29). 4. Adjust belt guide so distance between belt and guide is 1/8” (4 mm) (Fig. 30). 2 1 3 1 2 2417 Figure 29 Top View 1. Idler spring 2. 5-1/2” (140 mm) 3. Install left and right pulley covers with previously removed mounting screws. 4. Install the mower; refer to Installing the Mower, page 8. Power Take Off (PTO) Belt Figure 30 1. Left pully cover 2.
Maintenance 6. Repeat washing with hose attached to right washout fitting. 7. Turn the water off, remove hose coupling from the washout fitting. Note: 8. If the mower is not clean after one washing, soak and let stand for 30 minutes. Then repeat process again. Run mower again for one to three minutes to remove excess water. POTENTIAL HAZARD • A broken or missing washout fitting could expose you and others to thrown objects or blade contact.
Maintenance Storage 1. 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. IMPORTANT: You can wash the machine with mild detergent and water. Do not pressure wash the machine. Avoid excessive use of water, especially near the control panel, lights, engine, and the battery. 2.
Troubleshooting PROBLEM Abnormal vibration. Blade(s) does not rotate. Uneven cutting g height. g POSSIBLE CAUSES CORRECTIVE ACTION 1. Cutting blade(s) is bent or unbalanced. 1. Install new cutting blade(s). 2. Blade mounting bolt is loose. 2. Tighten blade mounting bolt. 3. Engine mounting bolts are loose. 3. Tighten engine mounting bolts. 4. Loose engine pulley, idler pulley, or blade pulley. 4. Tighten the appropriate pulley. 5. Engine pulley is damaged. 5.
Troubleshooting 24
Troubleshooting 25
Troubleshooting 26
