Toro 22178 Operator's Manual
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Toro 22178 Operator's Manual

21in heavy-duty rear bagger lawn mower
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Form No. 3360-491 Rev A
21in Heavy-Duty Rear Bagger
Lawn Mower
Model No. 22178—Serial No. 260004001 and Up
Register at www.Toro.com.
Original Instructions (EN)

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  • Page 1 Form No. 3360-491 Rev A 21in Heavy-Duty Rear Bagger Lawn Mower Model No. 22178—Serial No. 260004001 and Up Register at www.Toro.com. Original Instructions (EN)

  • Page 2: Introduction

    Whenever you need service, genuine Toro parts, or additional information, contact an Authorized Service Dealer or Toro Customer Service and have the model and serial numbers of your product ready. Figure 1 identifies the location of the model and serial numbers on the product.

  • Page 3: Table Of Contents

    To reduce the potential for Line..............6 injury, comply with these safety instructions. 3 Filling the Crankcase with Oil......7 Toro designed and tested this lawn mower for to offer Product Overview ............8 reasonably safe service; however, failure to comply Controls ............... 8 with the following instructions may result in Operation..............

  • Page 4: Maintenance And Storage

    • Never let children or untrained people operate or including emptying the catcher or unclogging the service the equipment. Local regulations may restrict chute. the age of the operator. • Stop equipment and inspect blade after striking • The owner/user can prevent and is responsible for objects or if an abnormal vibration occurs.

  • Page 5: Safety And Instructional Decals

    Safety and Instructional 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. Manufacturer’s Mark 68-7410 1. Indicates the blade is identified as a part from the original machine manufacturer.

  • Page 6: Setup

    Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure Description Qty. Handle Bolt (5/16 x 7/8 inch) Bolt (5/16 x 1-1/2 inches) Install the handle. Washer Locknut (5/16 inch) Cable tie Self-tapping screw Install the fuel tank and fuel line.

  • Page 7: Filling The Crankcase With Oil

    Installing the Fuel Tank and the Fuel Line Parts needed for this procedure: Self-tapping screw Fuel tank Procedure Figure 5 1. Slide the end of the fuel line onto the elbow fitting 1. Plastic clip (2) (Figure 4). 4. Secure the bottom of the fuel tank to the fuel tank bracket by installing the self-tapping screws from the bottom.

  • Page 8: Product Overview

    Product Overview Figure 7 1. Blade control bar 4. Throttle control lever 2. Control bar lock 5. Traction control bar 3. Ground speed control lever The throttle settings are shown in (Figure 8). Figure 6 1. Handle 8. Oil fill/dipstick (not shown) 2.

  • Page 9: Operation

    Operation Note: When the crankcase is empty, pour about 3/4 of the crankcase capacity of oil in the crankcase, then follow the procedure in this section. Note: Determine the left and right sides of the machine from the normal operating position. 1.
  • Page 10 In certain conditions, gasoline is extremely When fueling, under certain circumstances, a flammable and highly explosive. A fire or static charge can develop, igniting the gasoline. explosion from gasoline can burn you and A fire or explosion from gasoline can burn you others and can damage property.

  • Page 11: Starting The Engine

    Starting the Engine 1. Connect the wire to the spark plug (Figure 12). Figure 12 1. Spark-plug wire 2. Open the fuel valve (Figure 13) Figure 11 3. Air cleaner 1. Oil fill/dipstick 2. Fuel tank cap 2. Remove the cap from the tank. 3.

  • Page 12: Operating The Blade

    Operating the Blade Operating the Traction Drive Engaging the Blade Engaging the Traction Drive When you start your engine, the blade does not turn. 1. Release the traction control bar (Figure 16). You must engage the blade to mow. 1. Push the control bar lock forward (Figure 14). Figure 16 2.

  • Page 13: Checking The Blade Brake Clutch

    Checking the Blade Brake Clutch Adjusting the cutting height levers could bring your hands into contact with a moving blade Check the blade control bar before each use to ensure and result in serious injury. that the blade brake clutch system is operating properly. •...

  • Page 14: Operating Tips

    Check the grass bag frequently. If it is damaged, install a new Toro replacement bag. Figure 19 Operating Tips 1. Rear door General Tips 3.

  • Page 15: Cutting Grass

    • For light leaf coverage, set all the wheels at the same cutting height setting. Operating a mower with its engine running at • If there are more than 5 inches (12.7 cm) of leaves a speed greater than the factory setting can on the lawn, set the front cutting height 1 or 2 cause the mower to throw a part of the blade or notches higher than the rear cutting height.

  • Page 16: Maintenance

    Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule(s) Maintenance Service Maintenance Procedure Interval • Change the engine oil. After the first 8 hours • Check the engine oil level. •...

  • Page 17: Lubricating The Gear Case

    Lubricating the Gear Case Engine Maintenance Service Interval: Every 100 hours Servicing the Air Filter 1. Remove the grass bag. Service Interval: Every 25 hours—Clean the foam 2. Install a grease gun onto the fitting through the belt pre-cleaner (more frequently in dusty cover opening (Figure 22).

  • Page 18: Changing The Engine Oil

    Changing the Oil Filter 6. Remove the foam pre-cleaner and wash it with a mild detergent and water, then blot it dry. Service Interval: Every 100 hours 7. Saturate the pre-cleaner with oil, then squeeze it (do not twist) to remove the excess oil. 8.

  • Page 19: Servicing The Spark Plug

    Figure 27 1. Center electrode insulator Figure 26 2. Side electrode 3. Air gap (not to scale) 1. Gasket 6. Install the spark plug and the gasket seal. 8. Install the new filter and hand tighten it 2/3 turn only. 7.

  • Page 20: Fuel System Maintenance

    Fuel System Drive System Maintenance Maintenance Emptying the Fuel Tank and Adjusting the Self-propel Drive Cleaning the Fuel Filter If the mower does not self-propel or has a tendency to creep forward when the control bar is more than 1-1/2 Service Interval: Yearly inches (3.8 cm) from the handle, adjust the self-propel drive.

  • Page 21: Controls System Maintenance

    Controls System Maintenance Adjusting the Blade Brake Cable Whenever you install a new blade brake cable or replace Figure 29 the blade brake assembly, adjust the spring tension on the blade brake cable. 1. Locknuts 6. Plastic cover (rear wheels only) 1.
  • Page 22 to adjust the cable adjuster to achieve this value (Figure 30). Do not overtighten the blade brake cable. Overtightening the blade brake cable could prevent the blade brake from contacting the brake drum when you release the control bar. If the blade brake does not contact the brake drum, the blade will not stop rotating, which could cause serious personal injury.

  • Page 23: Blade Maintenance

    Blade Maintenance Maintaining the Cutting Blade Always mow with a sharp blade. A sharp blade cuts cleanly and without tearing or shredding the grass blades. 1. Stop the engine and wait for all moving parts to stop. 2. Disconnect the wire from the spark plug (Figure 12). Figure 34 3.

  • Page 24: Cleaning

    (Figure 37). end drops. Installing the Blade 1. Install a sharp, balanced Toro blade, the anti-scalp cup, and the blade nuts. The sail of the blade must point toward the top of the mower housing for Figure 37 proper installation.

  • Page 25: Cleaning The Blade Brake Clutch Shield

    Tipping the mower may cause the fuel to leak from the carburetor or the fuel tank. Gasoline is extremely flammable, highly explosive, and, under certain conditions, can cause personal injury or property damage. Avoid fuel spills by running the engine dry or by removing the gasoline with a hand pump;...

  • Page 26: Storage

    Storage 2. Clean any dirt and chaff from the cylinder, cylinder head fins, and blower housing. To prepare the mower for off-season storage, perform 3. Remove grass clippings, dirt, and grime from the the recommended maintenance procedures. Refer to external parts of the engine, the shrouding, and the Maintenance.

  • Page 27: Troubleshooting

    Troubleshooting Problem Possible Cause Corrective Action Engine does not start 1. The fuel tank is empty or the fuel 1. Drain and/or fill the fuel tank with system contains stale fuel. fresh gasoline. If the problem persists, contact an Authorized Service Dealer. 2.
  • Page 28 Notes:...
  • Page 29 Notes:...
  • Page 30 Notes:...
  • Page 31 You are responsible for presenting your equipment to an Authorized Service Dealer as soon as the problem exists. The warranty repairs should be completed in a reasonable amount of time, not to exceed 30 days. If you have a question regarding your warranty coverage, you should contact The Toro® Company at 1-952–948–4027 or call us toll free at the number listed in your Toro Warranty statement.

  • Page 32: The Toro Total Coverage Guarantee

    The Toro® Company and its afliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to repair any Toro Product, when used for residential purposes*, if defective in materials or workmanship or if it stops functioning due to the failure of a component.

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