FORM NO. 3319–586 Rev. A Wheel Horse 60” Side Discharge Mower for 5xi Tractors Model No. 78395 – 8900001 & Up Operator’s Manual IMPORTANT: Read this manual, and your tractor manual, carefully. They contain information about your safety and the safety of others. Also become familiar with the controls and their proper use before you operate the product.
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 . . . . . . . . . . . . . . . . . . . Installing the Mower . . . . . . . . . . . . . . . . . Adjusting the Mower . . . . . . . . . . . . . . . . . Removing the Mower . . . . . . . . . . . . . . . . . Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Side Discharge . . . . .
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 (Part No. 93–1122) NEXT TO FRONT WHEELS (Part No. 93–7282) (1) ON DISCHARGE CHUTE (1) ON DECK LEFT SIDE (Part No. 92–7108) (2) ON LEVELER BAR (Part No. 98–3478) ON MOWER REAR TOP (Part No. 98–3480) ON HEIGHT–OF–CUT BRACKET (Part No. 111655) ON MOWER RIGHT SIDE (Part No.
Installation Loose Parts Note: Use the chart below to identify parts used for assembly. DESCRIPTION QTY. USE Discharge chute 1 Spring 2 Bolt 3/8–24 x 3–1/2” 2 Lock nut 3/8” 2 PTO drive belt 1 Install PTO drive belt Pulley box 1 Install pulley box Operator’s Manual 1 Read before operating Install discharge chute 6 Mower Preparation Install the Discharge Chute 1. 2. 3. 4.
Installation 1 2 POTENTIAL HAZARD • Without the discharge chute 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 discharge chute from the mower because the discharge chute routes material down toward the turf. If the discharge chute is ever damaged, replace it immediately. Never put your hands or feet under the mower.
Installation 2. Lower the rear center wheel (if not already lowered). Do this by: 6. A. Removing the hairpin cotter from the wheel rod (Fig. 4). 3. B. Lifting the rear of the deck. C. Pulling the rod toward the outside of the mower, inserting the end of the rod into the hole in the height–of–cut plate (Fig. 4), and then installing the hairpin cotter into the second hole of the wheel rod as shown (Fig. 4).
Installation Attach the Mower 1. Make sure the attachment lift is in the full up position, turn the steering wheel all the way to the right (Fig. 7), then turn the ignition key to “STOP” to stop the engine, set the parking brake, and remove the ignition key. 3 2 m–3574 1 1 Figure 8 m–3575 1. Front tractor wheels 1. Slots in the side mounting brackets (2) 2. Belt guide 2. 5. Start the tractor. 6.
Installation 1 2 m–3575 m–3456 Figure 10 Figure 9 Left Side of Tractor Shown 1. J–pin 8. 2. Mower slot in side mounting bracket. 9. Turn the lever of the Attach–A–Matic counterclockwise to lock the mower to the tractor (Fig. 11). After the two J–pins are seated through the mower’s mounting brackets, using the attachment lift and your hand on the right front adjustable mower wheel bracket (Fig. 10), position the mower so its attachment bar fits into the mid Attach–A–Matic mount.
Installation B. C. Slide the wheel rod back toward the center wheel as far as it will go. The end of the control rod should no longer be in the hole in the height–of–cut plate (Fig. 12). Attach the PTO Drive Belt 1. Then install the hairpin cotter into the control rod hole closest to the height–of–cut plate as shown. Hang the belt over the mower, then thread it forward through the belt guide (Fig. 13) on the mower. 2 3 1 1 4 2 Figure 12 1. Wheel rod 2. Hairpin cotter A.
Installation 5. Position the belt into the groove of the PTO pulley (Fig. 14), making sure it is also under the pulleys in the pulley box. 2 2 1 ÉÉÉÉ ÉÉÉÉ ÉÉÉÉ ÉÉÉÉ m–4230 Figure 15 1. Pulley outside diameter 2. Wide side of belt 3 8. 1 m–4231 Now adjust the belt tension. A. Push the belt tension release arm back toward the pulley box to tension the belt. Figure 14 1. Pulley box pulley 2. PTO pulley 3. PTO drive belt 6. Loop the other end of the belt over the drive pulley of the mower.
Installation Adjusting the Mower Adjusting the Height of Cut The front gauge wheels are adjusted in different hole locations for 1 1/2”–4” (4–10 cm) heights of cut. 4 2 3 1. 5 1 m–3458 Figure 16 1. Belt tension release arm 2. Belt tension indicator (2) 3. Belt tension adjustment knob 9. 4. Seating position for tension arm 5. Belt tension released Start the tractor, apply the parking brake, and raise the deck. Get off the tractor. Pull the height–of–cut lever out to disengage it from the quadrant.
Installation Adjusting front–to–Rear Blade Cut 1 1. Disengage the power take off (PTO), set the parking brake, lower the attachment lift, and turn the ignition key to “STOP” to stop the engine. Remove the ignition key. 2. Carefully rotate one of the blades so it is facing front and rear (Fig. 19). 3. Measure the distance from the front tip of the blade (Fig. 19) to the flat surface. Then carefully rotate the blade tip until it is in the rear position.
Installation Adjusting the Blade Slope for Transport Because the attachment lift is used when the PTO drive is engaged, blade slope in transport must be adjusted to extend PTO drive belt life. This adjustment also provides for adequate transport height. Three steps accomplish this: 1) Making sure the lift arm cams are in the same position, 2) Measuring blade slope in its front and rear positions and 3) Making adjustments if the blade slope is not within specification.
Installation 8. Repeat steps 4–7 until the slope of the blade is approximately 1/4” (7 mm) lower in the front than it is in the rear. 4 Removing the Mower 2 The mower is most easily removed from the tractor when done on a level concrete surface. Rougher dirt or lawn surfaces make removing the mower more difficult. 1. 1 Apply the parking brake, start the tractor, and raise the attachment lift. 2. Get off the tractor. 3. Lower the rear center wheel. Do this by: 3 m–3579 A.
Installation 1 POTENTIAL HAZARD • Components under the hood will be hot if the tractor has been running. WHAT CAN HAPPEN • Touching hot components can cause burns. HOW TO AVOID THE HAZARD • Allow the tractor to cool before performing maintenance or touching components under the hood. m–3454 Figure 25 1. PTO pulley 8. Release the belt tension release arm on the pulley box to release the tension on the drive belt (Fig. 24). 10.
Installation 14. Slide the mower out from the driver’s right–hand side of the tractor. If the deck does not have enough clearance from the front wheels once it is almost out, turn the steering wheel all the way to the right. 15. Replace the grille. 1 m–3456 Figure 27 1. J–pin 12. If you wish to remove the pulley box, push the latch release buttons on the front Attach–A–Matic (Fig. 28) and raise the latch levers to open the latches holding the pulley box. Remove the pulley box.
Operation Side Discharge The mower has a hinged discharge chute that disperses clippings to the side and down toward the turf. While the ignition key is in RUN or LIGHTS position and the power take off (PTO) is engaged, the PTO indicator light will be on. When this light is ON, it is a reminder: the implement is being powered and the starter will not crank while the PTO is engaged. Always turn off the PTO before getting off the seat.
Operation Attachment Lift Lever 1 The attachment lift lever (Fig. 30 & 31) is used to raise and lower various attachments. Raising Attachments 1. Start the tractor. 2. Pull the attachment lift lever upward until the latch locks. In this position, the lift will hold the attachment in the up, or raised position. m–3258 Figure 30 POTENTIAL HAZARD • When the engine is off, attachments in the raised position can gradually lower. 1.
Operation 2. To adjust wheel height from the ground, remove the hairpin cotter and clevis pin to change hole location (Fig. 32). 3. Select a hole position so the wheel is approximately 3/8” (1 cm) off the ground for the height-of-cut position to be used (Fig. 32). 4. Insert the clevis pin and secure it with a hairpin cotter. 5. 1 Repeat this adjustment on the other wheel. m–3436 Figure 33 1.
Operation Mowing Direction When Stopping Alternate mowing direction to keep the grass standing straight. This also helps disperse clippings which enhances decomposition and fertilization. Avoid mowing in reverse. If the machine’s forward motion must be stopped while mowing, a clump of grass clippings may drop onto your lawn. To avoid this: 1. With the blade(s) “ENGAGED,” move onto a previously cut area. 2.
Maintenance Service Interval Chart 5 Hours 25 Hours X X X Mower Spindles—grease X X Center Idler and Rear Wheels—grease X X Service Operation Each Use Cutter Blade—check 50 Hours Belts—check for wear/cracks Mower Housing—clean Belt Tension—check Chipped Surfaces—paint Storage Service X X X initial X X X X POTENTIAL HAZARD • If you leave the key in the ignition switch, someone could start the engine.
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). 2 1 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. 151 Figure 34 1. Cutting edge 2. Curved area 3. Wear/slot forming WHAT CAN HAPPEN • Pieces of blade that may be thrown could seriously injure or kill you or bystanders.
Maintenance 2 2 4 1 Figure 37 1. Blade 2. Balancer 3 Installing the Blade(s) 2 1. 1 m–3580 Figure 35 1. Bolt 2. Washer IMPORTANT: The sail (curved part of the blade) must be pointing up toward the inside of the mower to assure proper cutting. 3. Blade 4. Spindle cup 2. Sharpening the Blade(s) 1. Hold the blade end using a rag or thickly padded glove. Install the blade, spindle cup, washer, and the blade bolt (Fig. 38). Tighten the blade bolt to 80-100 ft–lb (109-136 Nm).
Maintenance Greasing and Lubrication Checking PTO Drive Belt Tension Service Interval/Specification Grease the mower spindles, idler pulley, and (2) rear wheels after every 25 operating hours or once a year, whichever occurs first. Grease more frequently when operating conditions are extremely dusty or sandy. 1. Check the tension indicators on each side of the pulley box.
Maintenance • Maintain correct blade slope in transport. 3 5 1 • Adjust the position of the cutter deck belt guide. • Replace damaged pulleys. • Always operate engine–powered attachments at full throttle. • Avoid engaging the PTO when the cutter deck is in tall uncut grass or weeds. • Cut tall grass and weeds with the mower in its highest position, making a second pass cutting at desired height. 2 • Regularly clean the cutter deck of any buildup of grass clippings.
Troubleshooting PROBLEM Abnormal vibration. 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. Contact Authorized Service Dealer. 1.
Troubleshooting PROBLEM PTO (cutter deck) belt comes off of pulleys,slips or fails. (continued) 26 POSSIBLE CAUSES CORRECTIVE ACTION 8. PTO is being engaged when cutter deck is in tall uncut grass or weeds. 8. Engage PTO only in shorter or previously cut grass. 9. Cutter deck is overloaded because too much grass is being cut at a time. 9. Cut tall grass and weeds with mower in its highest position, making a second pass cutting at height desired. 10.
