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Toro 78444 Operator's Manual

Wheel horse 44" side discharge mower for 5xi lawn and garden tractors
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FORM NO. 3322–624
Wheel Horse
44" Side Discharge
Mower
for 5xi Lawn and Garden Tractors
Model No. 78444 – 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.
International English (GB)

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Summary of Contents for Toro 78444

  • Page 1 44” Side Discharge Mower for 5xi Lawn and Garden Tractors Model No. 78444 – 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.
  • 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. – 1998 Printed in USA...

  • Page 3: Table Of Contents

    Contents Page Page Maintenance ......Safety and Instruction Decals ....Service Interval Chart .

  • 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. (1) ON GRASS DEFLECTOR ON GRASS DEFLECTOR (1) ON DECK LEFT SIDE (Part No.

  • Page 5: Installation

    Installation Loose Parts Note: Use the chart below to identify parts used for assembly. DESCRIPTION QTY. Discharge chute Spring Install discharge chute Bolt 3/8–24 x 3–1/2” Lock nut 3/8” PTO drive belt Install PTO drive belt Pulley box Install pulley box Operator’s Manual Read before operating Mower Preparation...

  • Page 6: Installing The Mower

    Installation Installing the Mower POTENTIAL HAZARD Initial Preparation Without the discharge chute or the complete grass catcher assembly mounted The mower is most easily installed when done on a in place, you and others are exposed to level concrete surface. Rougher dirt or lawn surfaces blade contact and thrown debris.
  • Page 7 Installation m–3460 Figure 5 m–3463 1. Slots in the side mounting 3. Front–to–rear adjustment brackets (2) Figure 4 2. Belt guide 1. Attach-A-Matic latches 5. Belt tension adjustment knob 2. Pulley box Start the tractor. 6. Belt tension indicators 3. Idler pulley (one on each side) 4.

  • Page 8: Attach The Pto Drive Belt

    Installation After the two J–pins are seated through the 10. Set the parking brake, lower the attachment lift, mower’s mounting brackets, using the and turn the ignition key to “STOP” to stop the attachment lift and your hand on the right front engine.
  • Page 9 Installation Release the belt tension release arm on the pulley box housing and swing it out toward you (Fig. 13). Remove the tractor’s front grill by raising the hood and unscrewing the two screws and washers securing it in place (Fig. 10). Close the hood and remove the grill by pulling it out toward you.

  • Page 10: Adjusting The Mower

    Installation B. Check the tension indicators on each side of the pulley box. C. If the tension indicators are not in the same position on both the left and right sides, release the belt tension, turn the adjustment knob and repeat steps A and B until the indicators move to the same position (Fig.
  • Page 11 Installation Front m–3522 m–3474 Figure 15 1. Height-of-cut lever 3. High 2. Quadrant 4. Low Figure 16 1. Blade oriented front to rear 4. Measure here (side to Checking Mower Level side) 2. Measure front blade tip 3. Rotate front tip to rear and For optimum efficiency, the level of the mower measure should be checked at the time of initial installation...
  • Page 12 Installation Equalize side–to–side cut by adjusting the two carriage bolts (Fig. 18) on the mower. Check height of blade at outside blade tips as shown (Fig. 16). m–3518 Figure 19 m–3459 Figure 18 Right Side of Tractor Shown 1. Side–to–side adjustment 1.

  • Page 13: Removing The Mower

    Installation 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. POTENTIAL HAZARD The “scissor” formed by the mower mounting brackets and the attachment lift Removing the Mower arm is dangerous.
  • Page 14 Installation Press the button of the mid Attach-A-Matic and twist the lever clockwise to release the mower (Fig. 22). m–3458 Figure 20 1. Belt tension release arm 3. Belt tension released 2. Belt tension adjustment knob m–3457 Figure 22 Remove the belt from around the PTO pulley 1.
  • Page 15 Installation 11. If you wish to remove the pulley box, push the latch release buttons on the front Attach-A-Matic (Fig. 24) and raise the latch levers to open the latches holding the pulley box. Remove the pulley box. m–3458 Figure 24 1.

  • Page 16: Operation

    Operation Side Discharge 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, The mower has a hinged grass deflector that disperses it is a reminder: the implement is being powered and clippings to the side and down toward the turf.

  • Page 17: Attachment Lift Lever

    Operation Attachment Lift Lever The attachment lift lever (Fig. 26 & 27) is used to raise and lower various attachments. Raising Attachments Start the tractor. 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.

  • Page 18: Adjusting Anti-Scalp Rollers

    Operation Adjusting Anti-Scalp Rollers Adjusting the Two Front Wheels The anti-scalp rollers guide the mower over uneven turf without scalping the lawn. For most cutting The two front adjustable wheels must be adjusted in conditions they should be located in the lower hole. the proper hole location for each time you change When cutting in 1-1/2”...

  • Page 19: Check For Debris

    Operation Check for Debris Cut 1/3 of the Grass Blade It is best to cut only about 1/3 of the grass blade. Each time you use the mower, be sure to check for Cutting more than that is not recommended, unless debris build up on and inside the rear transaxle cover grass is sparse or it is late fall when grass grows more (Fig.
  • Page 20 Operation Long Grass If the grass is ever allowed to grow slightly longer than normal, or if it contains a high degree of moisture, raise the cutting height higher than usual and cut the grass at this setting. Then cut the grass again using the lower, normal setting.

  • Page 21: Maintenance

    Maintenance Service Interval Chart Each Storage Spring Service Operation Hours Hours Hours Service Service Cutter Blade—check Mower Spindles—grease Belts—check for wear/cracks Mower Housing—clean Belt Tension—check initial 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 22: 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 Figure 31 break apart and pieces could be thrown at 1.

  • Page 23: Greasing And Lubrication

    Maintenance Sharpening the Blade(s) Tighten the blade bolt to 40-60 ft–lb (54-81 N m). Use a file to sharpen the cutting edge at both ends of the blade (Fig. 33). Maintain the original angle. The blade retains its balance if the same amount of material is removed from both cutting edges.

  • Page 24: Checking Pto Drive Belt Tension

    Maintenance Where to Add Grease Lubricate the blade spindles (Fig. 36). m–3458 Figure 37 1. Belt tension release arm 4. Seating position for tension arm 2. Belt tension indicator (2) 5. Belt tension released 3. Belt tension adjustment knob m–3468 Figure 36 Extending PTO Drive Belt Life Checking PTO Drive Belt...

  • Page 25: Blade Drive Belt

    Maintenance Use low range or reduce ground speed when mowing in heavy conditions or when mulching or bagging. Blade Drive Belt Removing the Blade Drive Belt Remove the mower; refer to Removing the Mower, page 11. m–3472 Figure 38 Remove the pulley cover mounting screws and Top View pulley covers from the blade pulleys (Fig.

  • Page 26: Storage

    Maintenance Sit on the seat and start the engine. Engage the power take off (PTO) and let the mower run for one to three minutes. POTENTIAL HAZARD Disengage the power take off (PTO) and turn the A broken or missing washout fitting could ignition key to “STOP”...

  • Page 27: 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 28 Troubleshooting PROBLEM POSSIBLE CAUSES CORRECTIVE ACTION PTO (cutter deck) belt comes off PTO is being engaged when Engage PTO only in shorter of pulleys,slips or fails. (continued) cutter deck is in tall uncut or previously cut grass. grass or weeds. Cutter deck is overloaded Reduce ground speed when because mulching or bagging...

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