Related Manuals for Toro 74433
Summary of Contents for Toro 74433
- Page 1 Form No. 3360-128 Rev A TimeCutter ® ZD420 Riding Mowers Model No. 74433—Serial No. 280000001 and Up Register at www.Toro.com. Original Instructions (EN)
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Page 2: Table Of Contents
Whenever you need service, genuine Toro parts, or Contents additional information, contact an Authorized Service Dealer or Toro Customer Service and have the model and serial numbers of your product ready. Figure 1 Introduction..............2 identifies the location of the model and serial numbers Safety ................ -
Page 3: Safety
Safety Servicing the Engine Oil ........28 Servicing the Spark Plug ........29 Fuel System Maintenance ........31 Safe Operation Practices Draining the Fuel Tank........31 for Ride-on (riding) Rotary Replacing the Fuel Filter ........31 Electrical System Maintenance........ 32 Lawnmower Machines Servicing the Battery........... - Page 4 ◊ lack of awareness of the effect of ground – stay alert for humps and hollows and other conditions, especially slopes; hidden hazards; ◊ incorrect hitching and load distribution. • Use care when pulling loads. – Use only approved drawbar hitch points. Preparation –...
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Page 5: Toro Riding Mower Safety
If tires lose traction, disengage the blades and proceed slowly off the slope. The following list contains safety information specific to Toro products or other safety information that you must • Follow the manufacturer’s recommendations for know that is not included in the CEN standard. -
Page 6: Slope Chart
Slope Chart... -
Page 7: 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. 110-6691 1. Thrown object hazard—keep bystanders a safe distance from the machine. - Page 8 Battery Symbols Some or all of these symbols are on your battery 106-8742 1. Explosion hazard 6. Keep bystanders a safe 1. Parking brake distance from the battery. 2. No fire, open flame, or 7. Wear eye protection; smoking. explosive gases can cause blindness and other injuries 3.
- Page 9 110-6567 1. Warning—read the Operator’s Manual. 2. Warning—read the instructions before servicing or performing maintenance; move the motion control levers to the brake position, remove the ignition key and disconnect the spark plug wire. 3. Cutting/dismemberment hazard, mower blade; entanglement hazard, belt—do not open or remove safety shields while engine is running.
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Page 10: Product Overview
Product Overview Figure 3 1. Motion control lever 7. Mower deck 4. Collection bag 10. Cup holder 2. Height-of-cut lever 5. DFS lever 8. Recycle-on-demand lever 11. Footrest 9. Rear drive wheel 12. Front caster wheel 3. Control panel 6. Operator’s position, seat Figure 4 Collection bag removed 1. -
Page 11: Controls
Controls the center position engages the parking brake and allows the operator to exit the machine (Figure 5). Become familiar with all of the controls in Figure 3, Figure 4, Figure 5 and Figure 6 before you start the Parking Brake engine and operate the machine. -
Page 12: Operation
Throttle/Choke Control Operation The throttle and choke is combined into one control Note: Determine the left and right sides of the lever. The throttle controls the engine speed and it has a machine from the normal operating position. continuous variable setting from Slow to Fast. Engage the choke by moving the lever past the Fast setting until it stops (Figure 6). -
Page 13: Recommended Fuel
Recommended Fuel Use Unleaded Regular Gasoline suitable for In certain conditions during fueling, static automotive use (87 pump octane minimum). Leaded electricity can be released causing a spark regular gasoline may be used if unleaded regular is not which can ignite the fuel vapors. A fire or available. -
Page 14: Checking The Engine Oil Level
Important: Do not use fuel additives containing Note: A warm or hot engine may not require methanol or ethanol. choking. 4. Turn the ignition key to Start to energize the starter. Add the correct amount of gas stabilizer/conditioner When the engine starts, release the key. to the gas. -
Page 15: Driving Forward Or Backward
Driving Forward or Backward Backward 1. Move the levers to the center, unlocked position. The throttle control regulates the engine speed as 2. To go backward, slowly pull the motion control measured in rpm (revolutions per minute). Place levers rearward (Figure 12). the throttle control in the Fast position for best performance. -
Page 16: The Safety Interlock System
to the center, unlocked position. Try starting the engine; the engine should not crank. Repeat with the other motion control lever. Children or bystanders may be injured if they move or attempt to operate the mower while it 3. While sitting on the seat, move the blade control is unattended. -
Page 17: Operation In The Collection Mode
1. Park the machine on a level surface, disengage the The collection mode uses air flow created by the cutting blade control switch and move the motion control blades to direct clippings up, through an internal chute levers to the brake position. and deposit them in the collection bag. - Page 18 Emptying the Collection System Collection Bag Once the collection bag fills with enough grass to cover The collection bag is retained in the engine cover by one or both of the sensors and break the infrared beam seating the lever side pin into a holed bracket in the a beeping alarm will sound to alert the operator.
- Page 19 Removing the Collection Chute As you are bagging, a small amount of grass clippings normally blow out the front of the mower. An excessive amount of clippings blowing out and no audible alarm signalling a full bag may indicate a plugged chute. The collection chute can be removed to be cleaned and safely cleared of any obstructions.
- Page 20 6. Return to the machine. Inspect the internal engine compartment and clear any clippings or debris dislodged during chute removal. Debris built up in the engine compartment, if not removed, could be ignited by a hot engine. A fire in the engine compartment could can burn you and others and can damage property.
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Page 21: Operation In The Recycler ® Mode
Operation in the Recycler ® Mode Air is required to cut and recut grass clippings in the mower housing, so do not set the height-of-cut too low or completely surround the housing by uncut grass. Always try to have one side of the mower deck free from uncut grass;... -
Page 22: Adjusting The Footrest
To Push the Machine 1. Park the machine on a level surface and disengage the blade control switch. 2. Move the motion control levers outward to engage the parking brake, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. -
Page 23: Cutting Speed
File down any nicks and sharpen the blades as necessary. If a blade is damaged or worn, replace it immediately with a genuine Toro replacement blade. Safe Towing Practices Tow only with a machine that has a hitch designed for... -
Page 24: 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 5 hours • Test the safety interlock system. •... -
Page 25: Premaintenance Procedures
Premaintenance Procedures Accessing the Machine Some internal components can be accessed by simply raising the seat. Use the following procedures to access to the internal components as needed when performing the maintenance procedures described in this manual. G005900 Figure 25 Removing the Engine Hood Remove the engine hood to gain access to the engine compartment. -
Page 26: Lubrication
Lubrication Greasing the Bearings Service Interval: Every 25 hours—Grease all lubrication points. Grease Type: No. 2 General Purpose Lithium Base Grease 1. Park the machine on a level surface and disengage the blade control switch. Figure 27 2. Move the motion control levers to the brake position, 1. -
Page 27: Engine Maintenance
Engine Maintenance Servicing the Air Cleaner Foam Element: Clean after every 25 operating hours, or yearly, whichever occurs first. Paper Element: Replace after every 100 operating hours or yearly, whichever occurs first. Note: Service the air cleaner more frequently (every few hours) if operating conditions are extremely dusty or sandy. -
Page 28: Servicing The Engine Oil
• 48 oz./1-1/2 qt. (1400 cc/1.4 l) when the filter is not changed; • 56 oz./1-3/4 qt. (1700 cc/1.7 l) when the filter is Figure 35 changed (Model 74433 only) 1. Oil dipstick 2. Metal end Viscosity: See the table below. -
Page 29: Servicing The Spark Plug
Figure 37 1. Oil filter 3. Adapter 2. Gasket 4. Install the replacement oil filter to the filter adapter. Turn the oil filter clockwise until the rubber gasket contacts the filter adapter; then tighten the filter an additional 1/2 to 3/4 turn (Figure 37). Figure 36 5. - Page 30 Important: Always make sure the panel is replaced and secured with the fasteners before operating the machine. Operating the machine with the access panel open would allow clippings and other debris entering the engine compartment possibly damaging the machine. Figure 38 1.
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Page 31: Fuel System Maintenance
Fuel System Maintenance Draining the Fuel Tank Service Interval: Before storage—Drain the fuel tank. In certain conditions, fuel is extremely flammable and highly explosive. A fire or explosion from fuel can burn you and others Figure 41 and can damage property. 1. -
Page 32: Electrical System Maintenance
Electrical System Maintenance Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, Servicing the Battery resulting in personal injury. Always keep the battery clean and fully charged. Use • Always disconnect the negative (black) a paper towel to clean the battery case. -
Page 33: Adding Water To The Battery
1. Tip the seat forward to see the battery. 1. Remove the battery from the chassis; refer to Removing the Battery. 2. Look at the side of the battery. The electrolyte must be up to the Upper line (Figure 43). Do not allow the 2. -
Page 34: Drive System Maintenance
Drive System • Main F1-30 amp, blade-type • Charge Circuit F2-25 amp, blade-type Maintenance 1. Raise the seat to gain access to the fuse holder (Figure 45). Checking the Tire Pressure 2. To replace a fuse, pull out on the fuse to remove it (Figure 45). -
Page 35: Mower Maintenance
Check the cutter blades daily for sharpness, and for any wear or damage. File down any nicks and sharpen the blades as necessary. If a blade is damaged or worn, replace it immediately with a genuine Toro replacement Checking for Bent Blades blade. For convenient sharpening and replacement, you 1. -
Page 36: Leveling The Mower From Side-To-Side
The blades must be replaced if a solid object is hit, if the blade is out of balance, or the blade is bent. To ensure optimum performance and continued safety conformance of the machine, use genuine Toro replacement blades. Replacement blades made by other Figure 51 manufacturers may result in non-conformance with safety standards. -
Page 37: Adjusting The Front-To-Rear Blade Slope
Adjusting the Front-to-Rear 5. Carefully rotate the blade(s) side to side (Figure 52). Measure between the outside cutting edges and Blade Slope the flat surface (Figure 52). If both measurements are not within 3/16 inch (5 mm), an adjustment is Check the front-to-rear blade level any time you install required;... -
Page 38: Removing The Mower
10. Measure from the tip of the front blade to the flat surface and the tip of the rear blade to the flat surface (Figure 55). If the front blade tip is not 1/16-5/16 inch (1.6-7.9 mm) lower than the rear blade tip, adjust the front locknuts. -
Page 39: Mower Belt Maintenance
5. Remove the hairpin cotter and washer from the 5. Loosen fastener securing the belt guide to the rear adjusting rod (Figure 58) on each side of the mower. pulley (Figure 59). 6. Pull the idler arm in the direction shown in Figure 59 6. -
Page 40: Cleaning
Cleaning 3. Lift the front of the machine and support it with stands. 4. Slide the mower under the machine. Cleaning the Collection 5. Lower the height-of-cut lever to the lowest position. Sensors 6. Attach the adjusting rod to the machine with the Service Interval: Before each use or daily—Wipe clean washer and hairpin cotter (Figure 58) on each side the collection sensors. -
Page 41: Storage
Storage Cleaning and Storage 1. Disengage the blade control switch, move the motion controls outward to the park position, stop the engine, and remove the key. 2. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine. - Page 42 Important: Do not store stabilizer/conditioned gasoline over 30 days. 11. Remove the spark plug(s) and check its condition; refer to Servicing the Spark Plug in the Engine Maintenance section. With the spark plug(s) removed from the engine, pour two tablespoons of engine oil into the spark plug hole.
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Page 43: Troubleshooting
Troubleshooting Problem Possible Cause Corrective Action The engine overheats. 1. The engine load is excessive. 1. Reduce ground speed. 2. The oil level in the crankcase is low. 2. Add oil to the crankcase. 3. The cooling fins and air passages 3. - Page 44 Problem Possible Cause Corrective Action There is abnormal vibration. 1. The engine mounting bolts are loose. 1. Tighten the engine mounting bolts. 2. The engine pulley, idler pulley, or blade 2. Tighten the appropriate pulley. pulley is loose. 3. The engine pulley is damaged. 3.
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Page 45: Schematics
Schematics Electrical Diagram (Rev. A) - Page 46 Notes:...
- Page 47 Spypros Stavrinides Limited Cyprus 357 22 434131 Surge Systems India Limited India 91 1 292299901 T-Markt Logistics Ltd Hungary 36 26 525 500 Toro Australia Australia 61 3 9580 7355 Toro Europe BVBA Belgium 32 14 562 960 374-0102 Rev B...
- Page 48 Instructions for Obtaining Warranty Service The Toro® Company and its afliate, Toro Warranty Company, If you think that your Toro Product contains a defect in materials pursuant to an agreement between them, jointly promises to the or workmanship, follow this procedure: original purchaser* to repair any Toro Product used for normal 1.