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Form No. 3358-292 Rev A Z400 Z Master with a 48in or 52in 7-Gauge Side Discharge Mower Model No. 74410—Serial No. 270002001 and Up Model No. 74418—Serial No. 270002001 and Up Register at www.Toro.com. Original Instructions (EN)
You are responsible for operating 1. Safety alert symbol the product properly and safely. You may contact Toro directly at www.Toro.com for This manual uses 2 other words to highlight information. product and accessory information, help finding a Important calls attention to special mechanical dealer, or to register your product.
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Using the Rollover Protection System Servicing the Hydraulic System ......42 (ROPS) ............13 Setting the Hydraulic Pump Neutral Think Safety First ..........14 Position............44 Operating the Parking Brake ....... 15 Mower Deck Maintenance ........46 Starting and Stopping the Engine ......15 Leveling the Mower at Three Positions ....
Safety • Use extra care when handling gasoline and other fuels. They are flammable and vapors are explosive. Improper use or maintenance by the operator or owner – Use only an approved container can result in injury. To reduce the potential for injury, –...
• Be certain that the seat belt can be released quickly decals. in the event of an emergency. • Be aware there is no rollover protection when the • Use only Toro approved attachments. Warranty may roll bar is down. be voided if used with unapproved attachments.
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. 58-6520 1. Grease 1-403005 66-1340 1-523552 65-2690 1-633818 68-8340 98-4387 54-9220 1.
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98-5954 107-1687 103-2644 Battery Symbols Some or all of these symbols are on your battery 1. Explosion hazard 6. Keep bystanders a safe 105-7798 distance from the battery. 2. No fire, open flame, or 7. Wear eye protection; smoking. explosive gases can cause blindness and other injuries 8.
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107-2112 108-1050 107-2102 Manufacturer’s Mark 1. Indicates the blade is identified as a part from the original machine manufacturer. 107-8445...
107-9309 1. Warning—read the Operator’s Manual for information on charging the battery; contains lead; do not discard. 2. Read the Operator’s Manual. 108-5278 1. Read the Operator’s Manual. 108-5995 1. Fast 2. Slow 3. Neutral 4. Reverse 110-0439 1. Choke 3.
Using the Hour Meter The hour meter (Figure 5) records the number of hours the engine has operated. It operates when the engine is running. Use these times for scheduling regular maintenance. Figure 5 1. Hour meter Using the Fuel Shutoff Valve Figure 3 The machine has 2 fuel tanks, one on the left side and 1.
Operation In certain conditions during fueling, static Note: Determine the left and right sides of the electricity can be released causing a spark machine from the normal operating position. which can ignite the gasoline vapors. A fire or explosion from gasoline can burn you and Adding Fuel others and can damage property.
Important: Do not use fuel additives containing methanol or ethanol. There is no rollover protection when the roll bar Add the correct amount of gas stabilizer/conditioner is in the down position. to the gas. • Lower the roll bar only when absolutely Note: A fuel stabilizer/conditioner is most effective necessary.
Think Safety First 5. To raise the roll bar, remove the hairpin cotter pins and remove the two pins (Figure 8). Please read all safety instructions and symbols in the 6. Raise the roll bar to the upright position and install safety section.
Setting the Parking Brake 1. Move the motion control levers (Figure 18) out to the neutral lock position. 2. Pull up and back on the parking brake lever to set the parking brake (Figure 12). The parking brake lever should stay firmly in the engaged position. Parking brake may not hold machine parked on a slope and could cause personal injury or property damage.
Figure 15 2. Throttle—slow 1. Throttle—fast 6. Turn the ignition key to Start. When the engines Figure 13 starts, release the key (Figure 16). 1. PTO—on 2. PTO—off Important: Do not engage starter for more than 10 seconds at a time. If engine fails to 4.
The Safety Interlock System to remove the key as the fuel pump may run and cause the battery to lose charge. If safety interlock switches are disconnected Children or bystanders may be injured if they or damaged the machine could operate move or attempt to operate the tractor while it unexpectedly causing personal injury.
4. Sitting on the seat, engage the parking brake, move the PTO switch to off and move the motion control levers to neutral lock position. Now start the engine. While the engine is running, center either motion control and move (forward or reverse); the engine should stop.
Adjusting the Height-of-Cut 5. Install the flange nut bushing, spacer, and bolt. Torque to 40-45 ft-lb (54-61 N•m) (Figure 20 , The height-of-cut is adjusted from 1-1/2 to 4-1/2 inch Figure 21 and Figure 50 ). (38 to 114 mm) in 1/4 inch (6 mm) increments by 6.
Important: To adjust, move the lever sideways to 2. Rotate the by-pass valves counterclockwise 1 turn unlock seat (Figure 22). to push. This allows hydraulic fluid to by-pass the pump enabling the wheels to turn (Figure 24). Slide the seat to the desired position and release lever Important: Do not rotate by-pass valves more to lock in position.
Loading Machines Use extreme caution when loading units on trailers or Without the grass deflector, discharge cover, trucks. One full width ramp that is wide enough to or complete grass catcher assembly mounted extend beyond the rear tires is recommended instead of in place, you and others are exposed to blade individual ramps for each side of the unit (Figure 25).
Mowing Direction Alternate mowing direction to keep the grass standing straight. This also helps disperse clippings which enhances decomposition and fertilization. Mow at Correct Intervals Normally, mow every four days. But remember, grass grows at different rates at different times. So to maintain the same cutting height, which is a good practice, mow more often in early spring.
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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 blade.
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Maintenance Procedure Interval • Change the engine oil. After the first 8 hours • Check the hydraulic fluid. • Change the hydraulic filter and oil. After the first 25 hours • Check the safety system. •...
Lubrication Greasing and Lubrication Lubricate the machine when shown on the Check Service Reference Aid decal (Figure 26). Grease more frequently when operating conditions are extremely dusty or sandy. Grease Type: General-purpose grease. How to Grease 1. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake.
3. Remove the belt covers. 4. Grease the three spindle bearings under the pulleys until grease comes out the lower seals (Figure 27). 5. Grease the idler arm on the mower deck (Figure 27). 6. Grease the fittings on the push arms (Figure 27). Figure 28 1.
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Figure 30 1. Spacer nut 4. Caster wheel 5. Nut and axle assembled 2. Bearing seal (new seals required) 3. Bearing Figure 29 1. 1/8 inch (3 mm) of the nut past the axle 12. Install the assembled nut and axle into the wheel on the side with the bearing and a new seal (Figure 30).
Engine Maintenance Servicing the Air Cleaner Service Interval/Specification Foam element: Clean it after every 25 operating hours. Paper element: Check it after every 50 operating hours. Replace it after every 200 operating hours or yearly, which ever comes first. Inspect the foam and paper elements and replace them if they are damaged or excessively dirty.
Installing the Foam and Paper Elements 3. Wait for all moving parts to stop before leaving the operating position and then chock or block tires. Important: To prevent engine damage, always 4. Clean around the oil dipstick (Figure 33) so that dirt operate the engine with the complete foam and cannot fall into the filler hole and damage the engine.
Note: Dispose of the used oil at a recycling center. Figure 35 1. Oil filter 2. Adapter 3. Apply a thin coat of new oil to the rubber gasket on the replacement filter (Figure 35). 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 Figure 34...
Installing the Spark Plugs 1. Install the spark plugs and the metal washer. Ensure that the air gap is set correctly. 2. Tighten the spark plugs to 16 ft-lb (22 N⋅m). 3. Connect the wires to the spark plugs (Figure 37). Figure 36 1.
Servicing the Fuel Tank Fuel System Maintenance In certain conditions, gasoline is extremely Replacing the Fuel Filter flammable and highly explosive. A fire or explosion from gasoline can burn you and Service Interval: Every 200 hours others and can damage property. Replace the fuel filter after every 200 operating hours or •...
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 Disconnect the negative (black) Warning battery cable before disconnecting the positive (red) cable.
6. Remove both wing nuts (1/4 inch) securing the battery clamp (Figure 39). 7. Remove the battery. Installing the Battery 1. Position battery in the tray with the terminal posts toward the engine (Figure 39). 2. First, install the positive (red) battery cable to positive (+) battery terminal.
Drive System Maintenance Adjusting the Tracking Note: Determine the left and right sides of the machine from the normal operating position. The machine has a knob for adjusting the tracking located under the seat. Important: Adjust the handle neutral and hydraulic pump neutral before adjusting the tracking.
Check the pressure at the valve stem after every 50 operating hours or monthly, whichever occurs first (Figure 43). Maintain the air pressure in the front and rear tires at 13 psi (90 kPa). Uneven tire pressure can cause uneven cut.
Cooling System Maintenance Cleaning the Air Intake Screen Service Interval: Before each use or daily Before each use remove any build-up of grass, dirt or other debris from the cylinder and cylinder head cooling fins, air intake screen on flywheel end, and carburetor-governor levers and linkage.
Brake Maintenance Adjusting the Parking Brake Check the parking brake for proper adjustment. 1. Check tire pressure of all 4 tires. Refer to Checking the Tire Pressure. 2. Disengage the brake lever (lever down). 3. Measure the distance vertically between the front of the brake bar and the crown of the tire;...
Belt Maintenance Inspecting the Belts Service Interval: Every 100 hours Inspect all belts every 100 hours. Check belts for cracks, frayed edges, burn marks or any other damage. Replace damaged belts. Replacing the Mower Belt The signs of a worn mower belt are squealing while the belt is rotating, blades slipping while you are cutting grass, frayed belt edges, burn marks, and cracks.
Figure 50 1. Ratchet with short 2. Square hole Figure 51 extension or breaker 1. Belt 4. Bolt 2. Clutch electrical wire 5. Clutch 3. Clutch stop 6. Idler 8. To increase the belt tension, rotate the ratchet or breaker bar counterclockwise to move the fixed idler arm until you feel increased resistance and the Adjusting the Push Arms spring-loaded idler pulley stops moving.
Controls System Maintenance Adjusting the Control Handle Neutral Position If the motion control levers do not align or move easily into the console notch, adjustment them. Adjust each lever, spring, and rod separately. Note: The motion control levers must be installed correctly.
Hydraulic System Maintenance Servicing the Hydraulic System Checking the Hydraulic Fluid Figure 55 Service Interval: After the first 8 hours 1. Cap 3. Cold fluid level-full Every 25 hours 2. Baffle 4. Hot fluid level-full Fluid Type: Mobil 1 15W-50 synthetic motor oil or equivalent synthetic oil.
1. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Important: Do not substitute automotive oil filter or severe hydraulic system damage may result.
1. Raise the frame and block up the machine so drive wheels can rotate freely. Hydraulic fluid escaping under pressure can 2. Disconnect the electrical connector from the seat penetrate skin and cause injury. safety switch. Temporarily install a jumper wire across terminals in the wiring harness connector.
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2. Start the engine, open throttle 1/2 way and release parking brake. Refer to Starting and Stopping the Engine in Operation , page 12. Electrical system will not perform proper safety shut off with jumper wire installed. Note: The motion control lever must be in neutral while making any adjustments.
Mower Deck Maintenance Leveling the Mower at Three Positions Important: There are only three measuring positions needed to level the mower. Preparing the Machine 1. Position mower on a flat surface. 2. Disengage the PTO, move the motion control levers Figure 60 to the neutral locked position and set the parking 1.
If a blade is damaged or worn, side of the machine to achieve 1/4 to 3/8 inch replace it immediately with a genuine Toro replacement (6 to 10 mm) lower in front at A than in the rear at blade.
2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. A worn or damaged blade can break, and a piece of the blade could be thrown into the 3. Rotate the blades until the ends face forward and operator’s or bystander’s area, resulting in backward (Figure 65).
Toro replacement blades. Replacement blades made by other manufacturers may result in nonconformance with safety standards. Figure 67 1. Blade 2. Balancer Contact with a sharp blade can cause serious injury. Wear gloves or wrap sharp edges of the blade Installing the Blades with a rag.
Cleaning 1. Remove the locknut, bolt, spring and spacer holding the deflector to the pivot brackets (Figure 69). Remove the damaged or worn grass deflector. Cleaning Under the Mower 2. Place the spacer and spring onto grass deflector. Place the L end of spring behind deck edge. Service Interval: Before each use or daily Note: Make sure the L end of the spring is installed Remove the grass buildup under the mower daily.
Storage B. Run the engine to distribute conditioned fuel through the fuel system (5 minutes). 1. Disengage the power take off (PTO), set the parking C. Stop the engine, allow it to cool, and drain the brake, and turn the ignition key to Off. Remove the fuel tank;...
Troubleshooting Problem Possible Cause Corrective Action Starter does not crank 1. Blade control (PTO) is engaged. 1. Move the blade control (PTO) to disengaged. 2. Parking brake is not on. 2. Set the parking brake. 3. Operator is not seated. 3.
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Problem Possible Cause Corrective Action Uneven cutting height. 1. Blade(s) not sharp. 1. Sharpen the blade(s). 2. Cutting blade(s) is/are bent. 2. Install new cutting blade(s). 3. Mower is not level. 3. Level the mower from side-to-side and front-to-rear. 4. Underside of mower is dirty. 4.
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Countries Other than the United States or Canada Customers who have purchased Toro products exported from the United States or Canada should contact their Toro Distributor (Dealer) to obtain guarantee policies for your country, province, or state. If for any reason you are dissatised with your Distributor’s service or have difculty obtaining guarantee information, contact the Toro importer.