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Form No. 3374-389 Rev A

GrandStand

®

Mower

With 48in, 52in or 60in TURBO FORCE

®

Cutting Unit

Model No. 74549—Serial No. 313000001 and Up

Model No. 74553—Serial No. 313000001 and Up

Model No. 74578—Serial No. 313000001 and Up

Model No. 79548—Serial No. 313000001 and Up

Model No. 79549—Serial No. 313000001 and Up

Model No. 79553—Serial No. 313000001 and Up

Register at www.Toro.com.
Original Instructions (EN)

*3374-389* A

Summary of Contents for GrandStand 74549

Page 1: ...549 Serial No 313000001 and Up Model No 74553 Serial No 313000001 and Up Model No 74578 Serial No 313000001 and Up Model No 79548 Serial No 313000001 and Up Model No 79549 Serial No 313000001 and Up Model No 79553 Serial No 313000001 and Up Register at www Toro com Original Instructions EN 3374 389 A ...

Page 2: ...awns on residential or commercial properties 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 and accessory information help finding ...

Page 3: ...30 Greasing the Front Caster Pivots 30 Lubricate Caster Wheel Hubs 30 Engine Maintenance 32 Servicing the Air Cleaner 32 Servicing the Engine Oil 32 Servicing the Spark Plug 35 Check Spark Arrester if equipped 36 Fuel System Maintenance 36 Draining the Fuel Tank 36 Servicing the Fuel Filter 37 Electrical System Maintenance 37 Servicing the Battery 37 Servicing the Fuses 39 Drive System Maintenance...

Page 4: ...tning is seen or thunder is heard in the area do not operate the machine seek shelter Never run an engine in an enclosed area Only operate in good light keeping away from holes and hidden hazards Be sure all drives are in neutral and parking brake is engaged before starting engine Only start engine from the operator s position Be sure of your footing while using this machine especially when backin...

Page 5: ...and the positive last Reconnect the positive first and negative last Use care when checking blades Wrap the blade s or wear gloves and use caution when servicing them Only replace blades Never straighten or weld them Keep hands and feet away from moving parts If possible do not make adjustments with the engine running Keep all parts in good working condition and all hardware tightened Replace all ...

Page 6: ...change the stability of the machine Keep all movement on slopes slow and gradual Do not make sudden changes in speed or direction Mow slopes side to side Do not mow slopes greater than 20 degrees Service Never store the machine or fuel container inside where there is an open flame such as near a water heater or furnace Keep nuts and bolts tight especially the blade attachment bolts Keep equipment ...

Page 7: ... degrees Use the slope chart to determine the degree of slope of hills before operating Do not operate this machine on a slope greater than 20 degrees 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: ... distance from the battery 2 No fire open flame or smoking 7 Wear eye protection explosive gases can cause blindness and other injuries 3 Caustic liquid chemical burn hazard 8 Battery acid can cause blindness 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 106 5517 1 Warning do not touc...

Page 9: ... 115 4212 1 Hydraulic oil level 3 Warning do not touch the hot surface 2 Read the Operator s Manual 116 3267 116 3290 117 0456 1 Height of cut HOC high 3 Height of cut HOC low 2 Height of cut HOC medium 119 0217 1 Warning stop the engine stay away from moving parts keep all guards and shields in place 9 ...

Page 10: ...r with guards or shields removed 117 3626 1 Warning read the Operator s Manual 5 Thrown object hazard keep bystanders a safe distance from the machine 2 Warning do not operate this machine unless you are trained 6 Warning engage the parking brake stop the engine and remove the spark plug wire before performing any maintenance on the machine 3 Thrown object hazard keep deflector in place 7 Warning ...

Page 11: ...perator presence switch 2 Fast 4 Neutral 6 Power Take off PTO disengage 120 6464 1 Parking brake engage 3 Power Take off PTO engage 5 Engine speed 7 Continuous variable setting 2 Parking brake disengage 4 Power Take off PTO disengage 6 Fast 8 Slow 11 ...

Page 12: ...t off valve behind cushion 10 Hydraulic tank 5 Fuel tank 11 Mower deck 6 Controls 12 Front caster wheel g018323 1 2 3 4 5 6 7 8 9 10 11 12 Figure 4 60 inch machine 1 Side discharge chute 7 Control levers 2 Battery 8 Manual tube 3 Engine 9 Platform down position 4 Fuel shut off valve behind cushion 10 Hydraulic tank 5 Fuel tank 11 Mower deck 6 Controls 12 Front caster wheel 12 ...

Page 13: ...5 Fuel gauge 12 Blade control switch PTO 6 Height of cut lever 13 Left motion control lever 7 Height of cut pin Hour Meter The hour meter records the number of hours the engine has operated It operates when the engine is running Use these times for scheduling regular maintenance Figure 7 Fuel Gauge The fuel gauge is located on the top middle of the tank Figure 5 Safety Interlock Indicators There a...

Page 14: ...s and accessories are 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 Specifications Note Specifications and design are subject to change without notice 48 inch mowers Width with deflector down 63 5 inches 161 3 cm Width with deflector raised ...

Page 15: ...tion DANGER In certain conditions during fueling static electricity can be released causing 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 bed because interior c...

Page 16: ...e Allow 40 to 50 hours of break in time for new machines to develop full power and best performance Think Safety First Carefully read all the safety instructions and decals in the safety section Knowing this information could help you or any bystanders avoid injury The use of protective equipment for eyes hearing feet and head is recommended CAUTION This machine produces sound levels in excess of ...

Page 17: ...osition G008945 Figure 10 Disengaging the Mower Blades PTO The following are two options for disengaging the mower blades Push the blade control switch PTO down to the off position Move the motion control levers to neutral and move the right side motion control lever into the neutral lock position G009174 Figure 11 Operating the Throttle The throttle control can be moved between Fast and Slow posi...

Page 18: ...ely STA RT RU N STO P G008947 Figure 14 2 Turn the ignition key to stop to stop the engine Using the Fuel Shut Off Valve Close the fuel shut off valve for transport maintenance and storage Figure 15 Ensure the fuel shut off valve is open when starting the engine g015365 G008948 1 2 Figure 15 1 On 2 Off Starting and Stopping the Engine Starting the Engine 1 Connect the wires to the spark plugs 2 Op...

Page 19: ...hine unattended even if just for a few minutes Let the engine idle at slow throttle turtle for 60 seconds before turning the ignition switch off Figure 18 Important Make sure fuel shut off valve is closed before transporting or storing the machine as fuel leakage may occur Before storing the machine pull wire off spark plug s to prevent possibility of accidental starting The Safety Interlock Syste...

Page 20: ...e center un locked position 10 Continue holding the right side motion control lever in the center un locked position and pull up on the blade control switch PTO and release The clutch should engage and the mower blades begin rotating 11 Push the blade control switch PTO down to the off position The blades should stop rotating 12 With the engine running pull up the blade control switch PTO and rele...

Page 21: ...ause personal injury or damage to machine Slow the machine down before making sharp turns Driving Forward 1 Release the parking brake refer to Releasing the Parking Brake in Operation 2 Move the right side motion control lever to the center un locked position G015234 4 5 1 2 3 3 4 Figure 21 1 Front reference bar 4 Right control lever 2 Left control lever 5 Right control lever in the neutral lock p...

Page 22: ...d set the parking brake when leaving the machine unattended even if just for a few minutes Using the Rotation Indicator The slots in the top of the belt covers allow the operator to verify if the blades have stopped rotating after disengaging the power take off PTO switch Disengage the power take off PTO switch stop the engine remove the key and wait for all moving parts to stop before leaving the...

Page 23: ...raps chains cable or ropes Figure 26 G015235 Figure 26 1 Traction unit tie down loop Loading Machines Use extreme caution when loading units on trailers or trucks One full width ramp that is wide enough to extend beyond the rear tires is recommended instead of individual ramps for each side of the unit Figure 27 The platform when down and locked into position extends back between the rear wheels a...

Page 24: ...ss deflector discharge cover or complete grass catcher assembly mounted in place you and others are exposed to blade contact and thrown debris Contact with rotating mower blade s and thrown debris will cause injury or death Never remove the grass deflector from the mower because the grass deflector routes material down toward the turf If the grass deflector is ever damaged replace it immediately N...

Page 25: ...ity of cut 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 3 To adjust the baffle loosen the nut Figure 30 4 Adjust the baffle and nut in the slot to the desired discharge flow and tighten the nut g012676 1 2 Figure 30 1 Slot 2 Nut...

Page 26: ...rmance Weights can be added or removed to create optimized performance under different mowing conditions and for operator preference It is recommended that weights be added or removed one at a time until the desired handing and balance is achieved Note Contact an Authorized Service Dealer to order a Weight Kit WARNING Excessive weight changes can effect handling and operation of the machine This c...

Page 27: ... in dirty or dusty conditions Check clean and regap the spark plug Check the battery Check the electric clutch Check and clean engine cooling fins and shrouds Service the hydraulic oil cooler in dirty conditions if equipped Check the mower deck belt Check the pump drive belt Check the hydraulic hoses Every 200 hours Replace the paper air cleaner element Change the engine oil filter Every 250 hours...

Page 28: ...tion 2 Remove the battery g018098 Figure 34 1 Wing nut 4 Positive battery cable 2 Battery cover 5 Battery 3 Negative battery cable 3 Drain the fuel from the fuel tank Refer to Draining the Fuel Tank in Maintenance 4 Remove the cap of the hydraulic tank and place a piece of plastic over the opening and install the hydraulic cap This will seal the hydraulic tank and prevent it from leaking out g0179...

Page 29: ...of the cushion 3 Slide the large washers with plastic bushings to the inside 4 Remove the cushion and lower it to the platform 5 Perform any maintenance or adjustment on the machine 6 Raise the cushion and slide it onto the pins on both sides of the machine Figure 37 7 Slide the large washers plastic bushings into the cushion bracket and secure them with a hairpin cotter pin Figure 37 g019209 Figu...

Page 30: ...ty or dusty conditions Every 800 hours Yearly whichever comes first Grease the front wheel bearings more often in dirty or dusty conditions Every 800 hours Yearly whichever comes first Grease the front caster pivots more often in dirty or dusty conditions Use the following graphics for locating the grease points G019356 Figure 38 g018325 Figure 39 g018326 Figure 40 Greasing the Front Caster Pivots...

Page 31: ...the way onto the end of the axle Leave approximately 1 8 inch 3 mm from the outer surface of the spacer nut to the end of the axle inside the nut 9 Insert the assembled nut and axle into the wheel on the side of the wheel with the new seal and bearing 10 With the open end of the wheel facing up fill the area inside the wheel around the axle full of general purpose grease 11 Insert the second beari...

Page 32: ...eck the paper air cleaner element Every 200 hours Replace the paper air cleaner element 1 Do not clean the paper filter replace it Figure 42 2 Inspect the element for tears an oily film or damage to the rubber seal 3 Replace the paper element if it is damaged Installing the Foam and Paper Elements Important To prevent engine damage always operate the engine with the complete foam and paper air cle...

Page 33: ...ol 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 Figure 44 g015238 G008792 1 2 5 6 7 3 9 10 4 8 Figure 44 Changing the Engine Oil Note Dispose of the used oil at a recycling center 1 Park the machine so that the drain side is slightly lower than the opposite side to assure...

Page 34: ...e oil filter more frequently when operating conditions are extremely dusty or sandy 1 Drain the oil from the engine refer to Changing the Engine Oil 2 Place a rag under the oil filter to soak up any spilled oil Important Spilled oil may drain under the engine and onto the clutch Oil spilled on the clutch may damage the clutch cause the blades to stop slowly when the clutch is switched off and caus...

Page 35: ...k plug s if necessary Type for all Engines NGK BPR4ES or equivalent Air Gap 0 030 inch 0 75 mm Removing the Spark Plug 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 g015238 Figure 48 Checking the Spark Plug Important Never clean ...

Page 36: ...haust outlet Fuel System Maintenance Draining the Fuel Tank Note There is no other recommended way to drain fuel from the tank other than using a syphon pump A syphon pump can be purchased at a hardware store DANGER In certain conditions gasoline is extremely flammable and highly explosive A fire or explosion from gasoline can burn you and others and can damage property Drain gasoline from the fue...

Page 37: ...ery clean and fully charged Use a paper towel to clean the battery case If the battery terminals are corroded clean them with a solution of four parts water and one part baking soda Apply a light coating of grease to the battery terminals to prevent corrosion Voltage 12 V WARNING CALIFORNIA Proposition 65 Warning Battery posts terminals and related accessories contain lead and lead compounds chemi...

Page 38: ...nut washer and bolt Figure 53 Slide the rubber cover over the post 4 Then install the negative battery cable and ground wire to the negative battery terminal with a nut washer and bolt Figure 53 Slide the rubber cover over the post g018098 Figure 53 1 Wing nut 4 Positive battery cable 2 Battery cover 5 Battery 3 Negative battery cable Charging the Battery WARNING Charging the battery produces gass...

Page 39: ...k if the machine pulls to one side If it does stop the machine and set the parking brake 3 Release the cushion from the rear of the machine 4 Lift and remove the cable lock securing the cable adjusting nuts Figure 57 5 Rotate the right cable adjustment to position the right motion control in the center of the control panel neutral lock slot Figure 57 g015241 Figure 56 1 Left motion control lever 3...

Page 40: ...th the proximity switch target Figure 58 2 If needed loosen the bolts and adjust the proximity switch until the target aligns with bolt attached to the motion control lever Figure 58 3 Check the distance of the bolt to the proximity switch It needs to be between 0 050 and 0 090 inches 1 27 to 2 29 mm Figure 58 4 If adjustment is needed loosen the jam nut and adjust the bolt to the correct distance...

Page 41: ... turn to properly set the pre load on the bearings Figure 60 Important Make sure spring washers are installed correctly as shown in Figure 60 5 Install the dust cap Figure 60 Figure 60 1 Spring Washers 3 Dust Cap 2 Lock Nut Servicing the Caster Wheel and Bearings The caster wheels rotate on a roller bearing supported by a spanner bushing If the bearing is kept well lubricated wear will be minimal ...

Page 42: ...be moved easily within the air gap Figure 62 3 Repeat this for the remaining slots 4 Check each slot again and make slight adjustments until the feeler gauge between the rotor and armature with very slight contact between them Figure 62 1 Adjusting nut 3 Feeler gauge 2 Slot Cooling System Maintenance Cleaning the Air Intake Screen Service Interval Before each use or daily Before each use remove an...

Page 43: ...ure washer on the electric fan g017913 2 3 1 Figure 64 1 Hydraulic tank 3 Hydraulic oil cooler 2 Bolts Brake Maintenance Servicing the Brake Before each use check brakes on both a level surface and slope Always set the parking brake when you stop the machine or leave it unattended If the parking brake does not hold securely an adjustment is required Checking the Parking Brake Service Interval Befo...

Page 44: ...air pin cotter and clevis pin from the lower brake lever and yoke Figure 66 6 Loosen the jam nut Figure 66 7 Rotate the yoke To tighten the brake rotate the yoke up To loosen the brake rotate the yoke down Figure 66 8 Secure the yoke to lower brake lever with the hair pin cotter pin and clevis pin Figure 66 9 Tighten the jam nut Figure 66 10 Check the brake operation again refer to Checking the Br...

Page 45: ...ngage 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 operating position 3 Unlatch and remove the belt covers 4 Loosen the front idler pulley by loosening the nut 5 Remove the worn mower belt Figure 68 and Figure 69 6 Install the new mower belt around the deck pulleys and clutch pulley Figure 68 and Figure 69 7 Using a rat...

Page 46: ...loaded idler 6 Nut Replacing the Pump Drive Belt Service Interval Every 100 hours Check the pump drive belt 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 operating position 3 Remove the mower deck belt 4 Tilt the machine on it s back Refer to Pre Maintenance at the beginning of the Maintenance Section 5 Remov...

Page 47: ...on control lever Note Adjust the horizontal alignment before the front to back alignment 1 Disengage the PTO move the right side motion control lever to the neutral 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 3 Push the right motion control lever down out of locked neutral position Figure 71 4 Check...

Page 48: ... the neutral unlocked position 2 1 8 inch 3mm 12 Tighten the switch screws Adjusting the Neutral Postion for the Motion Control Levers Important Ensure the tracking of the mower is correct after adjusting the motion control levers Adjusting the tracking and aligning the motion control levers front to back is the same procedure Figure 74 Note Adjust the horizontal alignment before the front to back...

Page 49: ...tral lock slot in the control panel 4 Rotate the left cable adjustment to place the left motion control lever alignment equal with the right motion control lever This will provide an approximate equal tracking of the left wheel speed to the right wheel speed 5 Check for proper tracking Refer to Adjusting the Tracking in the Maintenance Section 6 Install the cable lock onto the cable adjusting nuts...

Page 50: ...the hot level and the cold level Note The fluid level should be below the hot level of the baffle when the fluid is warm Figure 76 9 Install cap on filler neck WARNING Hydraulic fluid escaping under pressure can penetrate skin and cause injury If hydraulic fluid is injected into the skin it must be surgically removed within a few hours by a doctor familiar with this type of injury Gangrene may res...

Page 51: ...eck the level of the fluid and add fluid if required Do not overfill Replacing the Hydraulic Filter Service Interval After the first 8 hours WARNING Hot hydraulic fluid can cause severe burns Allow the hydraulic fluid to cool before performing any maintenance to the hydraulic system 1 Disengage the PTO and set the parking brake 2 Stop the engine and wait for all moving parts to stop before leaving...

Page 52: ...it drops add fluid as required to maintain the proper level 6 Repeat this procedure for the opposite wheel 7 Thoroughly clean the area around each of the charge pump housings Checking the Hydraulic Lines Service Interval Every 100 hours Check hydraulic hoses and hoses for leaks loose fittings kinked hoses loose mounting supports wear weather and chemical deterioration Make necessary repairs before...

Page 53: ...rake 2 Stop the engine remove the key and wait for all moving parts to stop before leaving the operating position 3 Rotate the blades until the ends face forward and backward Measure from a level surface to the cutting edge position A of the blades Figure 81 Note this dimension Figure 81 1 Measure here from blade to hard surface 2 Position A 4 Rotate the opposite ends of the blades forward 5 Measu...

Page 54: ...stall the spring disk and blade bolt The spring disk cone must be installed toward the bolt head Figure 85 Torque the blade bolt to 85 110 ft lb 115 150 N m Figure 85 1 Sail Area of Blade 4 Blade Bolt 2 Blade 5 Cone Towards Bolt Head 3 Spring Disk Correcting the Mower Quality of Cut If one deck blade cuts lower than the other correct as follows Note Tire air pressure is critical in these procedure...

Page 55: ...g side that needs adjustment 2 Locate the U plates on the side of the engine deck Figure 87 3 Loosen the U plate on one side and adjust it up or down to make the difference between measurements B and C no more than a 1 4 inch 6 mm Figure 87 4 Proceed to Checking the Mower Deck Front to Rear Pitch G015244 Figure 87 1 U plate 2 Nuts and bolts Checking the Mower Deck Front to Rear Pitch 1 Adjust the ...

Page 56: ...oth the front and rear nuts and lift links on the adjustment rods Figure 91 4 The weight of the mower deck must be resting on all three of the 2x4 s Figure 90 The back lip of the mower deck is built a 1 4 inch 6mm lower than the front lip of the mower deck 5 For 60 inch mower decks tighten the lift links Figure 91 6 Tighten both the front and rear nuts 7 Check the front to rear pitch of the cuttin...

Page 57: ... correctly locate the height of cut rod on the right side of the machine Figure 93 6 Adjust the adjustment bolt until the blade tips match 3 inches 7 6 cm Figure 93 g015336 1 2 Figure 93 1 Height of cut rod 2 Adjustment bolt Adjusting the Deck Lift Spring Note Adjusting the deck lift spring will alter how much the deck will float and how much effort it takes to lift the deck when using the height ...

Page 58: ... blade could occur Never operate the lawn mower unless you install a cover plate a mulch plate grass deflector or bagger 1 Remove the locknut bolt spring and spacer holding the deflector to the pivot brackets Figure 95 Remove damaged or worn grass deflector g015594 1 6 2 4 7 3 5 Figure 95 1 Bolt 5 Spring installed 2 Spacer 6 Grass Deflector 3 Locknut 7 J hook end of spring 4 Spring 2 Place spacer ...

Page 59: ... brake refer to Servicing the Brake in Brake Maintenance page 43 4 Service the air cleaner refer to Servicing the Air Cleaner in Engine Maintenance page 32 5 Grease the machine refer to Greasing and Lubrication in Lubrication page 30 6 Change the engine oil refer to Servicing the Engine in Engine Maintenance page 32 7 Check the tire pressure refer to Checking the Tire Pressure in Drive System Main...

Page 60: ...ces Paint is available from your Authorized Service Dealer 12 Store the machine in a clean dry garage or storage area Remove the key from the ignition switch and keep it in a memorable place Cover the machine to protect it and keep it clean 60 ...

Page 61: ...ent hole in the fuel cap is plugged 6 Clean or replace the fuel cap 7 Dirt in the fuel filter 7 Replace the fuel filter Engine loses power 8 Dirt water or stale fuel is in the fuel system 8 Contact an Authorized Service Dealer 1 Engine load is excessive 1 Reduce the ground speed 2 Oil level in the crankcase is low 2 Add oil to the crankcase Engine overheats 3 Cooling fins and air passages under th...

Page 62: ...on 2 Pump drive belt is off pulley 2 Install drive belt and check adjusting shafts and belt guides for correct position 3 Mower deck belt is worn loose or broken 3 Install new deck belt 4 Mower deck belt is off pulley 4 Install deck pulley and check the idler pulley idler arm and spring for correct position and function 5 Broken or missing idler spring 5 Replace the spring 6 Electric clutch out of...

Page 63: ...Schematics g0181 10 Hydraulic Schematic for 48 inch Mower Models Rev A g017891 COOLER Hydraulic Schematic for 52 and 60 inch Mower Models Rev A 63 ...

Page 64: ...G015606 Electrical Schematic for 48 inch Mower Models Rev A 64 ...

Page 65: ...g018174 Electrical Schematic for 52 and 60 inch Mower Models Rev A 65 ...

Page 66: ...Notes 66 ...

Page 67: ...Notes 67 ...

Page 68: ...u may also call the numbers listed in item 3 to use the 24 hour Toro Dealer locator system 2 Bring the product and your proof of purchase sales receipt to the Service Dealer The dealer will diagnose the problem and determine if it is covered under warranty 3 If for any reason you are dissatisfied with the Service Dealer s analysis or with the assistance provided contact us at RLC Customer Care Dep...

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