Introduction

This machine is a 3-point hitch, tractor-mounted, debris blower which is intended to be used by professional, hired operators in commercial applications. It is primarily designed to use wind power to quickly clear large areas of unwanted debris on well-maintained lawns in parks, sports fields, and on commercial grounds.

Read this information carefully to learn how to operate and maintain your product properly and to avoid injury and product damage. You are responsible for operating the product properly and safely.

You may contact Lawn-Boy directly at www.Exmark.com for product and accessory information, help finding a dealer, or to register your product.

Whenever you need service, genuine Lawn-Boy parts, or additional information, contact an Authorized Service Dealer or Lawn-Boy Customer Service and have the model and serial numbers of your product ready. Write the numbers in the space provided.

This manual identifies potential hazards and has safety messages identified by the safety-alert symbol (Figure 1), which signals a hazard that may cause serious injury or death if you do not follow the recommended precautions.

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This manual uses 2 words to highlight information. Important calls attention to special mechanical information and Note emphasizes general information worthy of special attention.

This product complies with all relevant European directives; for details, please see the separate product specific Declaration of Conformity (DOC) sheet.

Warning

CALIFORNIA

Proposition 65 Warning

Use of this product may cause exposure to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Safety

General Safety

This product is capable of throwing objects. Always follow all safety instructions to avoid serious personal injury.

Using this product for purposes other than its intended use could prove dangerous to you and bystanders.

  • Read and understand the contents of both this Operator’s Manual and the operator’s manual of the traction unit before using this machine. Ensure that everyone using this product knows how to use this machine and the traction unit and understands the warnings.

  • Use your full attention while operating the machine. Do not engage in any activity that causes distractions; otherwise, injury or property damage may occur.

  • Do not put your hands or feet near moving components of the machine.

  • Do not operate the machine without all guards and other safety protective devices in place and working on the machine.

  • Keep children, bystanders, and pets out of the operating area. Never allow children to operate the machine.

  • Always shut off the traction unit engine, remove the key (if equipped), wait for all moving parts to stop, and allow the machine to cool before adjusting, repairing, cleaning, or storing the machine.

Improperly using or maintaining this machine can result in injury. To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety-alert symbol (Graphic), which means Caution, Warning, or Danger—personal safety instruction. Failure to comply with these instructions may result in personal injury or death.

Safety and Instructional Decals

Graphic

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 missing.

decal93-7814
decal98-3110
decal105-0627
decal105-0628
decal105-0668
decal105-0669
decal105-0698
decal105-0708
decal105-0709
decal133-8061
decal138-9038

Setup

Note: Determine the left and right sides of the machine from the normal operating position.

Applying the Entanglement Decal

CE Mowers

Parts needed for this procedure:

CE entanglement decal1

Important: This procedure is required for all CE countries and anywhere English is commonly spoken.

  1. Rotate the PTO shaft guard to access the existing entanglement decal (Figure 2).

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  2. Clean the existing entanglement decal and the guard area surrounding the decal.

  3. Remove the backing from the CE entanglement decal.

  4. Place the CE entanglement decal over the existing entanglement decal (Figure 2).

Installing the Caster Wheels

Install a caster wheel assembly between each caster fork with 4 washers, an axle, and 2 cotter pins (Figure 3).

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Connecting the Lower Link Arms

  1. Position the blower on a flat, level surface and disengage the PTO.

  2. Back the tractor squarely up to the blower until the lower link arms are aligned with the hitch pins.

  3. Engage the parking brake, shut off the traction unit engine, and remove the key from the ignition.

    Note: Wait for the traction unit engine and all moving parts to stop before leaving the operator’s seat.

  4. Insert the right and left, lower link arms onto the hitch pins (Figure 4).

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  5. Secure the lower link arms to the hitch pins with the lynch pins (Figure 4).

Connecting the Upper Link

  1. Connect the upper link to the holes in the blower bracket and secure it with a clevis pin and lynch pin (Figure 5).

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  2. Rotate the adjusting link to tighten the link.

    Note: Do not overtighten to raise the back end of the blower off the ground.

  3. Tighten the locknut to secure the upper link into position.

Adjusting the PTO Shaft Length

Important: A long PTO shaft is supplied with the machine to accommodate large variations in the tractor’s PTO and 3-point locations. For most machines, this shaft is too long and must be cut to the correct length, or damage may result.

Important: Incorrect PTO shaft length can cause machine and/or attachment damage and personal injury.

  1. With the blower on a level surface, lower the blower until the input shaft is approximately the same height as the tractor PTO shaft.

    Note: This is the shortest distance between the 2 shafts.

  2. Measure the distance from the lock groove of the tractor PTO shaft to the lock groove at the blower-input shaft.

    Note: Record this dimension.

  3. Fully collapse the PTO shaft and measure the distance between the lock pin collars.

    Note: Record this dimension.

  4. At the shortest length of the shaft, the 2 halves of the PTO shaft must have at least 37 mm (1-1/2 inches) of additional clearance to collapse (Figure 5).

    Note: If the dimension in step 2 is not at least 37 mm (1-1/2 inches) greater than the dimension in step 3, the PTO shaft is too long; proceed to step 5. If there is enough clearance to allow the PTO shaft to collapse, proceed to step 10.

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  5. Use the following calculation to establish how much shorter the shaft must be, when connected, to ensure a clearance of 37 mm (1-1/2 inches):

    1. Subtract the dimension recorded in step 3 from the dimension recorded in step 2.

      Note: Record this dimension.

    2. Subtract the result in step 51 from 37 mm (1-1/2 inches).

      Note: The PTO shaft must be shortened by this amount.

  6. Cut the guards and the steel tubes shorter by the calculated length.

    Note: Cut both halves of the PTO shaft.

  7. Deburr the ends of the steel tubes internally and externally.

  8. Remove all debris from the tube sections.

  9. Grease the steel tubes.

  10. Assemble the PTO shaft and secure it to the blower and tractor.

  11. Measure the shaft.

    Note: If it is not at least 37 mm (1-1/2 inches), repeat the procedure.

  12. Raise the blower to the highest position.

    Note: There must be at least 75 mm (3 inches) of overlap of the halves. Adjust the 3-point-lift stop, if necessary; refer to Adjusting the 3-Point-Lift Stop.

Connecting the PTO Shaft

  1. Connect the PTO shaft to the blower-input shaft.

  2. Connect the PTO shaft to the rear tractor PTO shaft.

  3. Slide the PTO shaft fully forward.

  4. Depress the pin to secure the PTO shaft in place and slide the PTO shaft back and forth to ensure that it is properly locked.

  5. Connect the guard safety chains from the power shaft sections to the welded clips on the link arms or to the PTO guards (Figure 7).

    Note: Ensure that the chains have slack when the blower is raised or lowered.

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Warning

If the guard chains are not connected, they could rotate during operation and cause bodily injury.

Keep all PTO guards in place and connect the guard chains to the link arms or PTO guards.

Adjusting the Sway Links

Adjust the sway links on the lower draft arms of the 3-point hitch to minimize side-to-side sway to a maximum of 25 mm (1 inch) on each side.

  1. Adjust the lower links inboard until they contact the blower mounting plates (Figure 8).

    Note: This will reduce the stress on the pins. If the tractor has sway chains instead of sway links, install the washers between the lower link arm and lynch pin to reduce the overhung load on the lift pins.

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  2. Turn the adjustable-link body (if provided) to raise or lower the link arm until the blower is leveled from side to side (Figure 8).

Note: Refer to the tractor operator’s manual for additional installation and adjustment procedures.

Adjusting the 3-Point-Lift Stop

Adjust and set the 3-point-lift stop to provide approximately 10 cm (4 inches) ground clearance, when in the raised position, to minimize the PTO angle when raising the blower. For transporting or trailer loading/unloading, the full-lift range can be used as long as the PTO tubes do not slide apart (Figure 9).

Important: Operating the PTO in the fully-raised position may damage the PTO or other components

Note: Refer to the tractor operator’s manual for adjustment procedures.

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Removing the Blower from the Tractor

  1. Park the machine on a level surface, disengage the PTO, engage the parking brake, shut off the traction unit engine, and remove the key from the ignition.

  2. Disconnect the guard safety chains from the tractor PTO.

    Note: Secure the end of the chain to the blower side of the PTO shaft to prevent the PTO shaft from coming apart.

  3. Slowly lower the blower until the roller and caster wheels contact the ground.

  4. Remove the lynch pin and top link pin securing the center link to the bracket.

  5. Disconnect the power shaft from the tractor PTO shaft.

  6. Slide the power shaft rearward and remove it from the tractor.

  7. Remove the lynch pins and slide the lower link arms off the hitch pins.

Greasing the Blower

Before operating the blower, lubricate the PTO drive-shaft; refer to Greasing the Machine.

Important: Failure to properly grease the unit will result in premature failure of critical parts.

Product Overview

Note: Specifications and design are subject to change without notice.

Length125 cm (49 inches)
Width150 cm (59 inches)
Height117 cm (46 inches)
Net weight227 kg (500 lbs)

Attachments/Accessories

A selection of Lawn-Boy approved attachments and accessories is available for use with the machine to enhance and expand its capabilities. Contact your Authorized Service Dealer or authorized Lawn-Boy distributor or go to www.Exmark.com for a list of all approved attachments and accessories.

To ensure optimum performance and continued safety certification of the machine, use only genuine Toro replacement parts and accessories. Replacement parts and accessories made by other manufacturers could be dangerous, and such use could void the product warranty.

Operation

Note: Determine the left and right sides of the machine from the normal operating position.

Before Operation

Before Operation Safety

General Safety

  • Never allow children or untrained people to operate or service the machine. Local regulations may restrict the age of the operator. The owner is responsible for training all operators and mechanics.

  • Become familiar with the safe operation of the equipment, operator controls, and safety signs.

  • Always shut off the traction unit engine, remove the key, wait for all moving parts to stop, and allow the machine to cool before adjusting, repairing, cleaning, or storing the machine. Know how to stop the machine and shut off the engine quickly.

  • Keep all guards, safety devices, and decals in place. Repair or replace all safety devices and replace all illegible or missing decals. Do not operate the machine unless they are present and functioning properly.

  • Each time an attachment or implement is mounted, check the 3-point-hitch movement. Ensure that there is no interference with hoses and attachment parts when operating the 3–point hitch.

    Important: You can damage the PTO shaft if you operate attachments at too high of an angle.

  • Attachments can change the stability and the operating characteristics of the traction unit.

  • Locate the pinch point areas marked on the traction unit and attachments and keep your hands and feet away from these areas.

  • Ensure that the traction unit is suitable for use with an implement of this weight by checking with the traction unit supplier or manufacturer.

  • Do not modify this equipment in any manner.

Adjusting the Discharge Direction

The direction of the discharge opening can be changed from the side to the front by moving the control handle (Figure 10).

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During Operation

During Operation Safety

General Safety

  • The owner/operator can prevent and is responsible for accidents that may cause personal injury or property damage.

  • Wear appropriate clothing, including eye protection; long pants; substantial, slip-resistant footwear; and hearing protection. Tie back long hair and do not wear loose jewelry.

  • Do not operate the machine while ill, tired, or under the influence of alcohol or drugs.

  • Use your full attention while operating the machine. Do not engage in any activity that causes distractions; otherwise, injury or property damage may occur.

  • Discharged air has considerable force and could cause injury or loss of footing. Stay away from the blower nozzle when the machine is operating.

  • Keep all bystanders away; shut off the machine when bystanders enter the area, do not direct discharge toward them.

  • Do not operate the machine when it is not connected to a towing vehicle.

  • Do not run the traction unit engine in a confined area without adequate ventilation. Engine exhaust contains carbon monoxide, an odorless gas that is fatal if inhaled.

  • Do not carry passengers on the machine and keep bystanders and pets away from the machine during operation.

  • Operate the machine only in good visibility to avoid holes or hidden hazards.

  • Look behind and down before backing up to be sure of a clear path.

  • Use care when approaching blind corners, shrubs, trees, or other objects that may obscure your vision.

  • Never leave a running machine unattended.

  • When transporting the machine on public roads, follow all traffic regulations and use any additional accessories that may be required by law, such as lights, turn signals, slow-moving vehicle (SMV) signs, and others as required.

  • If the machine ever vibrates abnormally, stop the machine immediately, shut off the traction unit engine, remove the key, wait for all moving parts to stop, and inspect for damage. Repair all damage to the machine before resuming operation.

  • Reduce speed when operating on rough, uneven terrain, and near curbs, holes, and other sudden changes in terrain.

  • To avoid causing the machine to tip over, be careful when turning and avoid unsafe maneuvers.

  • For all PTO shaft steel parts (tubes, bearings, joints, etc.) disassembly or repairs, it is highly advisable to contact your local Toro distributor. Removal of components for repairs and reassembly may damage some parts if not performed with special tools by trained technicians.

  • The PTO shaft must not be used without the guards supplied.

Slope Safety

  • Review the traction unit specifications to ensure that you do not exceed its slope capabilities.

  • Slopes are a major factor related to loss of control and rollover accidents, which can result in severe injury or death. You are responsible for safe slope operation. Operating the machine on any slope requires extra caution.

  • Evaluate the site conditions to determine if the slope is safe for machine operation, including surveying the site. Always use common sense and good judgment when performing this survey.

  • Review the slope instructions, listed below, for operating the machine on slopes. Before you operate the machine, review the site conditions to determine whether you can operate the machine in the conditions on that day and at that site. Changes in the terrain can result in a change in slope operation for the machine.

    • Avoid starting, stopping, or turning the machine on slopes. Avoid making sudden changes in speed or direction. Make turns slowly and gradually.

    • Do not operate a machine under any conditions where traction, steering, or stability is in question.

    • Remove or mark obstructions such as ditches, holes, ruts, bumps, rocks, or other hidden hazards. Tall grass can hide obstructions. Uneven terrain could overturn the machine.

    • Be aware that operating the machine on wet grass, across slopes, or downhill may cause the machine to lose traction.

    • Use extreme caution when operating the machine near drop-offs, ditches, embankments, water hazards, or other hazards. The machine could suddenly roll over if a wheel goes over the edge or the edge caves in. Establish a safety area between the machine and any hazard.

Operating Tips

Warning

Discharged air has considerable force and could cause injury or loss of footing.

  • Stay away from the discharge opening when the machine is operating.

  • Keep bystanders away from the discharge opening when the machine is running.

  1. Start the tractor and run it at a low engine speed.

  2. Engage the PTO while the engine is at idle speed.

  3. Increase the tractor PTO speed to 540 rpm.

  4. Practice blowing material.

    Note: Blow in the same direction that the wind is blowing to prevent material from blowing back into the cleared area.

After Operation

After Operation Safety

General Safety

  • Park the machine on a firm, level surface; shut off the traction unit engine, remove the key, wait for all moving parts to stop, and allow the machine to cool before adjusting, repairing, cleaning, or storing the machine.

  • Only disconnect the machine from the traction unit while on a level surface.

  • When disconnecting the machine, always chock the wheels to prevent movement.

  • Keep all parts of the machine in good working condition and all hardware tightened.

  • Replace all worn, damaged, or missing decals.

Hauling

  • Use care when loading or unloading the machine into a trailer or truck.

  • Use full-width ramps for loading machine into trailer or truck.

  • Tie the machine down securely using straps, chains, cable, or ropes. Direct both the front and rear straps down and outward from the machine.

Maintenance

Caution

Failure to properly maintain the machine could result in premature failure of machine systems causing possible harm to you or bystanders.

Keep the machine well maintained and in good working order as indicated in these instructions.

Note: Determine the left and right sides of the machine from the normal operating position.

Maintenance Safety

  • Before cleaning, servicing, or adjusting the machine, do the following:

    • Park the machine on a level surface.

    • Shut off the traction unit engine, remove the key, and wait for all moving parts to stop.

    • Chock the wheels.

    • Allow machine components to cool before performing maintenance.

  • Perform only those maintenance instructions described in this manual. If major repairs are ever needed or you need assistance, contact an authorized Toro distributor.

  • Do not rely on a hydraulic system to support the machine; support the machine with blocks or jack stands when working beneath it.

  • Ensure that all guards are installed securely after maintaining or adjusting the machine.

  • Do not allow untrained personnel to service the machine.

  • Carefully release pressure from components with stored energy.

  • Keep all parts in good working condition and all fasteners tightened. Replace all damaged or missing decals.

  • Do not interfere with the intended function of a safety device or reduce the protection provided by a safety device. Check their proper operation regularly.

  • If major repairs are ever necessary or assistance is required, contact an authorized Lawn-Boy distributor.

  • Altering this machine in any manner may affect the operation of the machine, performance, durability, or its use may result in injury or death. Such use could void the product warranty of Lawn-Boy® Inc..

Recommended Maintenance Schedule(s)

Maintenance Service IntervalMaintenance Procedure
Every 20 hours
  • Check and/or adjust the blower-belt tension.
  • Every 100 hours
  • Grease the fan shaft bearings.
  • Grease the caster wheel fittings.
  • Grease the 2 drive-shaft fittings.
  • Lubrication

    Greasing the Machine

    The machine has grease fittings that you must lubricate regularly with No. 2 lithium grease.

    Fan-Shaft Bearings

    Maintenance Service IntervalMaintenance Procedure
    Every 100 hours
  • Grease the fan shaft bearings.
  • Grease the 2 fan shaft bearings (Figure 11).

    Note: Remove belt cover to access rear fitting.

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    Caster Wheels

    Maintenance Service IntervalMaintenance Procedure
    Every 100 hours
  • Grease the caster wheel fittings.
  • Grease the 2 caster wheel fittings (Figure 12).

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    Drive Shaft

    Maintenance Service IntervalMaintenance Procedure
    Every 100 hours
  • Grease the 2 drive-shaft fittings.
  • Grease the 2 drive-shaft fittings (Figure 13).

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    Belt Maintenance

    Adjusting the Blower Belt

    Maintenance Service IntervalMaintenance Procedure
    Every 20 hours
  • Check and/or adjust the blower-belt tension.
  • Ensure that the belt is properly tensioned to ensure proper operation of the machine and unnecessary wear. Check the belt frequently.

    Important: The fasteners on the covers of this machine are designed to remain on the cover after removal. Loosen all of the fasteners on each cover a few turns so that the cover is loose but still attached, then go back and loosen them until the cover comes free. This prevents you from accidentally stripping the bolts free of the retainers.

    1. Remove the capscrews, washers, and nuts securing the belt guard to the blower housing (Figure 14).

      Note: The drive shaft does not have to be disconnected to adjust the belt.

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    2. Remove the belt guard (Figure 14).

    3. Remove capscrew and nut securing the tensioner guide to the blower frame (Figure 15).

      Note: The belt tension releases when the capscrew is removed.

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    4. On the rear of the frame, loosen the capscrew securing the belt tensioner to frame (Figure 15).

    5. Position a large wrench on the tensioner and rotate the tensioner clockwise until the decal is aligned 15º on the tensioner tube.

    6. Insert the capscrew into the aligned guide holes and secure it with the nut (Figure 15).

      Note: If holes are not exactly aligned, rotate the guide to the next higher hole until it is aligned.

    7. Tighten the capscrew on the rear of the frame to lock the tensioner.

    8. Install the belt guard to the blower housing with the capscrews, washers, and nuts.

    Storage

    1. Thoroughly clean the blower.

      Note: The fan housing should be free of dirt, leaves, and debris.

    2. Lubricate all grease fittings. Wipe off any excess lubricant.

    3. Place a light coat of grease on the splines of the PTO shaft.

    4. Tighten all fasteners.

    Troubleshooting

    ProblemPossible CauseCorrective Action
    There is excessive vibration.
    1. The bearing(s) on the fan shaft is damaged.
    2. Material is built up on the fan blades.
    3. The engine speed of the PTO shaft is too fast.
    1. Replace the bearings.
    2. Clean out any build up on the inside of the housing.
    3. Reduce the PTO speed to 540 rpm.
    There is lack of adequate air flow.
    1. The air slots are clogged with debris.
    2. The engine speed on the tractor is too slow.
    3. The throttle on the tractor engine is too slow.
    1. Clean out any debris from the slots.
    2. Increase the PTO speed to 540 rpm.
    3. Make any necessary repairs to bring the tractor speed up to normal.