Toro 74950 Operator'S Manual Download Page 1

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Form No. 3399-263 Rev A

Z Master

Professional 3000

Series Riding Mower

with 60in TURBO FORCE

Side Discharge

Mower

Model No. 74950—Serial No. 316000001 and Up

*3399-263* A

Summary of Contents for 74950

Page 1: ... 3399 263 Rev A Z Master Professional 3000 Series Riding Mower with 60in TURBO FORCE Side Discharge Mower Model No 74950 Serial No 316000001 and Up Register at www Toro com Original Instructions EN 3399 263 A ...

Page 2: ...rties It is not designed for cutting brush or for agricultural uses 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 Toro directly at www Toro com for product safety and operation training materials accessory information help finding a d...

Page 3: ... 38 Checking the Spark Arrester if equipped 39 Fuel System Maintenance 39 Replacing the Fuel Filter 39 Servicing the Fuel Tank 40 Electrical System Maintenance 40 Servicing the Battery 40 Servicing the Fuses 42 Drive System Maintenance 42 Checking the Seat Belt 42 Checking the Rollover Protection System ROPS Knobs 42 Adjusting the Tracking 43 Checking the Tire Pressure 43 Checking the Wheel Lug Nu...

Page 4: ...are functioning properly Operation Lightning can cause severe injury or death If lightning is seen or thunder is heard in the area do not operate the machine seek shelter Do not run an engine in an enclosed area Operate only in well lit areas keeping away from holes and hidden hazards Ensure that all drives are in neutral and that the parking brake is engaged before starting engine Start the engin...

Page 5: ...arking brake shut off the engine and remove the key or disconnect spark plug wire Wait for all movement to stop before adjusting cleaning or repairing Park the machine on a level surface Clean grass and debris from the cutting unit drives mufflers and engine to help prevent fires Clean up oil or fuel spills Let the engine cool before storing the machine Do not store fuel near flames or drain fuel ...

Page 6: ...OPS in areas where there are slopes drop offs or water Check carefully for overhead clearances i e branches doorways electrical wires before driving under any objects and do not contact them Keep the ROPS in safe operating condition by periodically thoroughly inspecting for damage and keeping all mounting fasteners tight Replace a damaged ROPS Do not repair or revise Do not remove the ROPS Any alt...

Page 7: ...on is 15 Use the slope chart to determine the degree of slope of hills before operating Do not operate this machine on a slope greater than 15 Fold along the appropriate line to match the recommended slope 2 Align this edge with a vertical surface a tree building fence pole etc 3 Example of how to compare slope with folded edge 7 ...

Page 8: ...20 1 Grease 93 7818 1 Warning read the Operator s Manual for instructions on torquing the blade bolt nut to 115 to 149 N m 85 to 110 ft lb 99 8936 1 Machine speed 4 Neutral 2 Fast 5 Reverse 3 Slow 106 2655 1 Warning do not touch or approach moving belts remove the ignition key and read the instructions before servicing or performing maintenance 106 5517 1 Warning do not touch the hot surface 8 ...

Page 9: ...ower the roll bar only when absolutely necessary do not wear the seat belt when the roll bar is down 3 Read the Operator s Manual drive slowly and carefully 110 2067 110 2068 1 Read the Operator s Manual 112 9028 1 Warning stay away from moving parts keep all guards in place 114 4466 1 Main 25A 3 Charge 25A 2 PTO 10A 4 Auxiliary 15A 115 7445 1 Grease pulleys and spindles 2 Maintenance interval 50 ...

Page 10: ...commended hydraulic fluid 117 3848 1 Thrown object hazard keep bystanders a safe distance from the machine 2 Thrown object hazard mower do not operate without the deflector discharge cover or grass collection system in place 3 Cutting dismemberment of hand or foot stay away from moving parts keep all guards and shields in place 117 3864 1 Read the Operator s Manual 2 Fill to bottom of filler neck ...

Page 11: ...3 Read and understand the Operator s Manual before performing any maintenance check torque after first 100 hours then every 500 hours thereafter 126 4398 1 Read the Operator s Manual 3 Unlock 2 Lock 127 0326 1 Read the Operator s Manual 3 Remove the key from the ignition and read the Operator s Manual before performing maintenance or servicing the machine 2 Height of cut 11 ...

Page 12: ...or severe burns 4 Wear eye protection 9 Flush eyes immediately with water and get medical help fast 5 Read the Operator s Manual 10 Contains lead do not discard Manufacturer s Mark 1 Indicates the blade is identified as a part from the original machine manufacturer 125 9383 1 Check hydraulic oil every 50 operating hours 3 Check the tire pressure every 50 operating hours 2 Read the Operator s Manua...

Page 13: ...hine and that has an incline less than 15 degrees back up the ramp in reverse and drive forward off the ramp 2 Cutting and pinching hazard keep hands and feet away from moving parts keep all guards and shields in place 5 Bodily harm hazard look behind you when mowing in reverse 3 Thrown object hazard keep bystanders away 6 Tipping hazard on slopes do not use on slopes near open water do not use on...

Page 14: ...Fuel gauge bars 4 Safety interlock symbols 2 Battery light 5 Low fuel indicator light 3 Hour meter Hour Meter The hour meter records the number of hours that the engine has operated It operates when the engine is running Use these times for scheduling regular maintenance Figure 6 Safety Interlock Indicators There are symbols on the hour meter which indicate with a black triangle that the interlock...

Page 15: ...nts Accessories A selection of Toro approved attachments and accessories is available for use with the machine to enhance and expand its capabilities Contact your Authorized Service Dealer or Distributor or go to www Toro com for a list of all approved attachments and accessories To best protect your investment and maintain optimal performance of your Toro equipment count on Toro genuine parts Whe...

Page 16: ... place and in proper working condition DANGER In certain conditions during fueling static electricity can cause a spark which can ignite the gasoline vapors A fire or explosion from gasoline can burn you and others and can damage property Always place gasoline containers on the ground away from your vehicle before filling Do not fill gasoline containers inside a vehicle or on a truck or trailer be...

Page 17: ...on the engine Allow 40 to 50 hours of break in time for new machines to develop full power and best performance Using the Rollover Protection System ROPS WARNING To avoid injury or death from rollover keep the roll bar in the fully raised locked position and use the seat belt Ensure that the rear part of the seat is secured with the seat latch WARNING There is no rollover protection when the roll ...

Page 18: ...section Knowing this information could help you or bystanders avoid injury DANGER Operating the machine on wet grass or steep slopes can cause sliding and loss of control Do not operate on slopes greater than 15 degrees Reduce speed and use extreme caution on slopes Do not operate the machine near water DANGER Wheels dropping over edges can cause rollovers which may result in serious injury death ...

Page 19: ...attended Setting the Parking Brake WARNING Parking brake may not hold machine parked on a slope and could cause personal injury or property damage Do not park on slopes unless wheels are chocked or blocked g027334 Figure 11 Releasing the Parking Brake g027335 Figure 12 Operating the Mower Blade Control Switch PTO The blade control switch PTO starts and stops the mower blades and any powered attach...

Page 20: ... START position Figure 17 When the engine starts release the key Important Do not engage the starter for more than 5 seconds at a time If the engine fails to start allow a 15 second cool down period between attempts Failure to follow these instructions can burn out the starter motor Note You may need multiple attempts to start the engine when you start it the first time after the fuel system has b...

Page 21: ...ds at a time If the engine fails to start allow a 15 second cool down period between attempts Failure to follow these instructions can burn out the starter motor Note You may need to attempt to start the engine multiple times when you start it for the first time after the fuel system has been without fuel completely STA RT RU N STO P G008947 Figure 20 Stopping the Engine CAUTION Children or bystan...

Page 22: ...low have an Authorized Service Dealer repair the safety system immediately 1 Sitting on the seat engage the parking brake and move the blade control switch PTO to the ON position Try starting the engine the engine should not crank 2 Sitting on the seat engage the parking brake and move the blade control switch PTO to the OFF position Move either motion control lever out of the NEUTRAL LOCK positio...

Page 23: ...g brake engaged To stop pull the motion control levers to the NEUTRAL position 1 Release the parking brake refer to Adjusting the Parking Brake page 48 2 Move the levers to the center unlocked position 3 To go forward slowly push the motion control levers forward Figure 24 G008952 Figure 24 Driving Backward 1 Move the levers to the center unlocked position 2 To go backward slowly pull the motion c...

Page 24: ... if they move or attempt to operate the machine while it is unattended Always remove the ignition key and set the parking brake when leaving the machine unattended even if just for a few minutes Adjusting the Height of Cut Using the Transport Lock The transport lock has 2 positions and is used with the deck lift pedal There is a LOCK position and an UNLOCK position for the TRANSPORT position of th...

Page 25: ...deck lift pull back on the transport lock and slowly lower the mower deck Figure 27 1 Deck lift pedal 3 Transport lock 2 Height of cut pin Adjusting the Anti Scalp Rollers Whenever you change the height of cut it is recommended to adjust the height of the anti scalp rollers 1 Disengage the blade control switch PTO move the motion control levers to the NEUTRAL LOCK position and set the parking brak...

Page 26: ...he slots to the desired discharge flow 5 Swing the lever back over to tighten the baffle and cam locks Figure 31 6 If the cam locks do not lock the baffle into place or it is too tight loosen the lever and then rotate the cam lock Adjust the cam lock until you achieve the desired locking pressure Figure 31 Positioning the Flow Baffle The following figures are only recommendations for use Adjustmen...

Page 27: ...p before accessing the drive wheel release valves WARNING The engine and hydraulic drive units can become very hot Touching a hot engine or hydraulic drive units can cause severe burns Allow the engine and hydraulic drive units to cool completely before accessing the drive wheel release valves The drive wheel release valves are located in the back of each hydraulic drive unit under the seat Note M...

Page 28: ... emblem is dangerous and can lead to accidents causing personal injury Do not drive the machine on a public street or roadway 1 If using a trailer connect it to the towing vehicle and connect the safety chains 2 If applicable connect the trailer brakes 3 Load the machine onto the trailer or truck 4 Shut off the engine remove the key set the brake and close the fuel valve 5 Use the tie down loops o...

Page 29: ... and the trailer or truck Ensure that the length of the ramp is at least 4 times as long as the height of the trailer or truck bed to the ground This will ensure that ramp angle does not exceed 15 on flat ground Back the machine up the ramps and drive it forward down the ramps Avoid sudden acceleration or deceleration while driving the machine on a ramp as this could cause a loss of control or a t...

Page 30: ...r mow less frequently If you cannot mow for an extended period first mow at a high cutting height then mow again 2 days later at a lower height setting Adjusting the Cutting Speed To improve cut quality use a slower ground speed in certain conditions Avoiding Cutting Too Low If the cutting width of the mower is wider than the mower you previously used raise the cutting height to ensure that uneven...

Page 31: ...ouds more often in dirty or dusty conditions Every 200 hours Change the engine oil filter Every 250 hours Replace the primary air filter more often in dirty or dusty conditions Check the secondary air filter more often in dirty or dusty conditions Change the hydraulic filters and hydraulic oil when using Mobil 1 oil more often in dirty or dusty conditions Every 500 hours Replace the secondary air ...

Page 32: ...begins to ooze out the bearings 5 Wipe up any excess grease Adding Light Oil or Spray Lubrication Service Interval Every 100 hours Deck lift pivots G017050 Figure 40 Greasing the Mower Service Interval Every 50 hours Grease the mower deck spindles and idler arm Yearly Grease the pump belt idler arm Yearly Grease the front caster pivots more often in dirty or dusty conditions Yearly Repack the fron...

Page 33: ... 5 Remove a spacer nut from the axle assembly in the caster wheel Note Thread locking adhesive has been applied to lock the spacer nuts to the axle 6 Remove the axle with the other spacer nut still assembled to it from the wheel assembly 7 Pry out seals and inspect the bearings for wear or damage and replace them if necessary 8 Pack the bearings with a general purpose grease 9 Insert 1 bearing and...

Page 34: ...ter more often in dirty or dusty conditions Every 500 hours Replace the secondary air filter more often in dirty or dusty conditions Note Service the air cleaner more frequently if operating conditions are extremely dusty or sandy Removing the Filters 1 Disengage the PTO move the motion control levers to the NEUTRAL LOCK position and set the parking brake 2 Shut off the engine remove the key and w...

Page 35: ...t Important Do not press on the soft inside area of the filter 5 Install the air cleaner cover with the breather cap down and rotate so the retaining clamps lock the cover in place Figure 45 Servicing the Engine Oil Oil Type Detergent oil API service SG SH SJ or higher Crankcase Capacity with a filter change 2 3 L 2 4 US qt without a filter change 2 1 L 2 2 US qt Viscosity See the table below Figu...

Page 36: ...5 minutes Note This warms the oil so that it drains better 2 Park the machine so that the rear is slightly lower than the front to ensure that the oil drains completely 3 Disengage the PTO move the motion control levers to the NEUTRAL LOCK position and set the parking brake 4 Shut off the engine remove the key and wait for all moving parts to stop before leaving the operating position Figure 48 G0...

Page 37: ...gain Changing the Engine Oil Filter Service Interval Every 200 hours Note Change the engine oil filter more frequently when operating conditions are extremely dusty or sandy 1 Drain the oil from the engine 2 Change the engine oil filter Figure 50 G008804 B A C D E F 3 4 g027477 Figure 50 Note Ensure that the oil filter gasket touches the engine then turn the oil filter an extra 3 4 turn 3 Fill the...

Page 38: ... set the parking brake 3 Remove the left hydraulic unit shroud in the order listed in Figure 51 Note This gives you access to the front spark plug Figure 51 1 Pull this tab out to the side in the direction of the arrow 3 Pull the shroud off this frame tab in the direction of the arrow 2 Pull the shroud off this frame tab in the direction of the arrow 4 Shroud 4 Remove the spark plug G008803 B A g0...

Page 39: ... the exhaust outlet Fuel System Maintenance Replacing the Fuel Filter Service Interval Every 500 hours Yearly whichever comes first more often in dirty or dusty conditions The fuel filter is located near the engine on the front or rear side of the engine 1 Disengage the PTO move the motion control levers to the NEUTRAL LOCK position and set the parking brake 2 Shut off the engine remove the key an...

Page 40: ...ing Wear safety glasses to shield your eyes and rubber gloves to protect your hands Removing the Battery WARNING Battery terminals or metal tools could short against metal machine components causing sparks Sparks can cause the battery gases to explode resulting in personal injury When removing or installing the battery do not allow the battery terminals to touch any metal parts of the machine Do n...

Page 41: ... smoke near the battery and keep sparks and flames away from battery Important Always keep the battery fully charged 1 265 specific gravity This is especially important to prevent battery damage when the temperature is below 0 C 32 F 1 Charge battery for 10 to 15 minutes at 25 to 30 A or 30 minutes at 10 A 2 When the battery is fully charged unplug the charger from the electrical outlet then disco...

Page 42: ...ch use or daily Inspect the seat belt for wear cuts and proper operation of the retractor and buckle Replace the seat belt if it is damaged Checking the Rollover Protection System ROPS Knobs Service Interval Before each use or daily WARNING To avoid injury or death from rollover keep the roll bar in the fully raised locked position and use the seat belt Ensure that the seat is secured to the machi...

Page 43: ... loosen the bolts and adjust the left stop plate backward on the left T slot until the machine tracks straight Figure 61 7 If it tracks to the left loosen the bolts and adjust the right stop plate backward on the right T slot until the machine tracks straight Figure 61 8 Tighten the stop plate Figure 61 Figure 61 Left control lever shown 1 Control lever 3 Stop plate 2 Bolt Checking the Tire Pressu...

Page 44: ...nd wait for all moving parts to stop before leaving the operating position 3 Remove the dust cap from the caster and tighten the locknut Figure 64 4 Tighten the locknut until the spring washers are flat and then back off a 1 4 turn to properly set the pre load on the bearings Figure 64 Important Make sure that the spring washers are installed correctly as shown in Figure 64 5 Install the dust cap ...

Page 45: ...Note Do not remove the brake pole from the field shell armature The brake pole has worn to match the armature and needs to continue to match after the shim is removed to ensure proper brake torque Figure 67 1 Brake mounting bolt B Using needle nose pliers or by hand hold the tab and remove the shim Note Do not discard the shim until proper clutch function has been confirmed Figure 68 1 Shim C Usin...

Page 46: ... iii Engage and disengage the PTO switch 10 consecutive times to ensure that the clutch is functioning properly If the clutch does not engage properly refer to Troubleshooting page 63 Cooling System Maintenance Cleaning the Engine Screen and Engine Oil Cooler Service Interval Before each use or daily Remove any buildup of grass dirt or other debris from the oil cooler Figure 71 G008804 Figure 71 B...

Page 47: ... the engine parts 5 Install the air intake screen recoil starter and fan housing Figure 72 Figure 72 1 Engine guard 4 Fan housing 2 Engine air intake screen 5 Screw 3 Bolt Checking and Cleaning the Hydraulic Unit Shrouds Service Interval Before each use or daily 1 Disengage the PTO and set the parking brake 2 Stop the engine remove the key and wait for all moving parts to stop before leaving the o...

Page 48: ...tion 8 Check to see if there is a visible gap between the L bracket and the linkage stop Figure 74 Figure 74 Left Side Shown 1 L bracket 4 Rear linkage assembly 2 Linkage stop 5 Caliper 3 Gap 6 Wheel hub 9 Disengage the parking brake the lever should be in the down position 10 Turn the wheel hub by hand in both directions relative to the caliper the wheel hub should move freely between the caliper...

Page 49: ...ut 4 Remove the belt covers Figure 75 Figure 75 5 Use a ratchet in the square hole in the idler arm to remove tension on the idler spring Figure 76 6 Remove the belt from the mower deck pulleys 7 Remove the belt guide on the spring loaded idler arm shown in Figure 76 8 Remove the existing belt 9 Install the new belt around the mower pulleys and the clutch pulley under the engine Figure 76 Figure 7...

Page 50: ...y 5 Left hydraulic pump pulley 2 Clutch pulley 6 Square hole in idler arm 3 Pump drive belt 7 Idler spring 4 Right hydraulic pump pulley 5 Use a ratchet in the square hole in the idler arm to remove the idler spring Figure 78 6 Unhook the idler spring from the frame Figure 78 7 Remove the belt from the hydraulic unit drive pulleys and the engine pulley 8 Install the new belt around the engine pull...

Page 51: ...inkage with a 1 2 inch wrench allows fine tuning adjustments so that the machine does not move into NEUTRAL position Any adjustments should be made for neutral positioning only WARNING Engine must be running and drive wheels must be turning so a motion control adjustment can be performed Contact with moving parts or hot surfaces may cause personal injury Keep fingers hands and clothing clear of ro...

Page 52: ...emove the jumper wire from the wire harness and plug the connector into the seat switch 12 Remove the jack stands 13 Raise the deck and install the height of cut pin 14 Check that the machine does not creep in NEUTRAL with the park brakes disengaged Adjusting the Motion Control Damper You can adjust the top damper mounting bolt to obtain a more desired motion control lever resistance See Figure 82...

Page 53: ...op before leaving the operating position 4 Allow the engine and the hydraulic system to cool for 10 minutes Note The oil level on the dipstick will be incorrect if the oil is checked when the machine is hot 5 Move the seat forward 6 Clean the area around the dipsticks of the hydraulic system reservoirs Figure 84 7 Remove 1 dipstick from the hydraulic reservoir Figure 84 8 Wipe the dipstick off and...

Page 54: ...ours Change the hydraulic filters and hydraulic oil when using any type of oil Every 250 hours Change the hydraulic filters and hydraulic oil when using Mobil 1 oil more often in dirty or dusty conditions Every 500 hours Change the hydraulic filters and hydraulic oil when using Toro HYPR OIL 500 hydraulic oil more often in dirty or dusty conditions To replace the hydraulic oil the filters need to ...

Page 55: ...he mower deck is level before matching the height of cut HOC 1 Position the machine on a flat surface 2 Disengage the blade control switch PTO move the motion control levers to the NEUTRAL LOCK position and set the parking brake 3 Shut off the engine remove the key and wait for all moving parts to stop before leaving the operating position 4 Check the tire pressure of the drive tires If needed adj...

Page 56: ...face 2 8 3 cm 3 1 4 inches at position B is correct 4 Measure at position A and B on both sides 10 If needed loosen the flanged locknut on the side of the yoke and the jam nut on top Fine tune the adjuster screw by turning it to get 7 6 mm 3 inch height Figure 89 Note To increase the height turn the adjuster screw clockwise to decrease the height turn it counterclockwise Figure 89 1 Flanged locknu...

Page 57: ... on the deck lift arm assemblies 18 Lower the discharge chute Servicing the Cutting Blades Maintain sharp blades throughout the cutting season because sharp blades cut cleanly without tearing or shredding the grass blades Tearing and shredding turns grass brown at the edges which slows growth and increases the chance of disease Check the cutter blades daily for sharpness and for any wear or damage...

Page 58: ...een the dimensions obtained in steps 4 and 6 must not exceed 3 mm 1 8 inch Note If this dimension exceeds 3 mm 1 8 inch the blade is bent and must be replaced WARNING A blade that is bent or damaged could break apart and could seriously injure or kill you or bystanders Always replace bent or damaged blade with a new blade Never file or create sharp notches in the edges or surfaces of blade Removin...

Page 59: ...d toward the inside of the mower to ensure proper cutting 2 Install the spring disk and the blade bolt The spring disk cone must be installed toward the bolt head Figure 97 Torque the blade bolt to 115 to 150 N m 85 to 110 ft lb Figure 97 1 Sail area of blade 3 Curved washer 2 Blade 4 Blade bolt Removing the Mower Deck WARNING Deck lift arm assemblies have stored energy Removing the deck with out ...

Page 60: ...e at you or bystanders resulting in serious injury or death Do not operate the machine unless you install a cover plate mulch plate grass deflector or bagger 1 Remove the locknut bolt spring and spacer holding the deflector to the pivot brackets Figure 100 Remove the damaged or worn grass deflector g015594 1 6 2 4 7 3 5 Figure 100 1 Bolt 5 Spring installed 2 Spacer 6 Grass deflector 3 Locknut 7 J ...

Page 61: ...aintenance page 48 4 Service the air cleaner refer to Servicing the Air Cleaner page 34 5 Grease the machine refer to Greasing and Lubrication page 32 6 Change the crankcase oil refer to Changing the Engine Oil page 36 7 Check the tire pressure refer to Checking the Tire Pressure page 43 8 Change the hydraulic filters refer to Replacing the Hydraulic Filters and Hydraulic Oil page 54 9 Charge the ...

Page 62: ...ws Repair or replace any part that is damaged 14 Paint all scratched or bare metal surfaces Paint is available from your Authorized Service Dealer 15 Store the machine in a clean dry garage or storage area Remove the key from the ignition switch and keep it out of reach of children or other unauthorized users Cover the machine to protect it and keep it clean 62 ...

Page 63: ... or damaged 9 Check the electrical connections for good contact Clean the connector terminals thoroughly with electrical contact cleaner apply dielectric grease and make the appropriate connections 10 The relay or switch is worn or damaged 10 Contact an Authorized Service Dealer 11 The spark plug is fouled or improperly gapped 11 Adjust or replace the spark plug The engine does not start starts ha...

Page 64: ... level 3 Level the mower deck from side to side and front to rear 4 The underside of mower is dirty 4 Clean the underside of the mower 5 The tire pressure is not correct 5 Adjust the tire pressure The machine produces an uneven cutting height 6 The blade spindle is bent 6 Contact an Authorized Service Dealer 1 The mower deck belt is worn loose or broken 1 Install a new deck belt 2 The mower deck b...

Page 65: ...Schematics Wire Diagram Rev A 65 ...

Page 66: ...Notes 66 ...

Page 67: ...Notes 67 ...

Page 68: ...performed by a dealer or by you is at your expense Items and Conditions Not Covered There is no other express warranty except for special emission system coverage and engine warranty coverage on some products This express warranty does not cover the following Cost of regular maintenance service or parts such as filters fuel lubricants oil changes spark plugs air filters blade sharpening or worn bl...

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