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Toro GrandStand 74553, Operator'S Manual

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Toro GrandStand 74553 Operator'S Manual Download Page 62

Electrical Schematic (Rev. A)

62

Summary of Contents for GrandStand 74553

Page 1: ...TURBO FORCE Cutting Unit Model No 74553 Serial No 310000001 and Up Model No 79553 Serial No 310000001 and Up g013662 To register your product or download an Operator s Manual or Parts Catalog at no c...

Page 2: ...com for product and accessory information help finding a dealer or to register your product Whenever you need service genuine Toro parts or additional information contact an Authorized Service Dealer...

Page 3: ...icate Caster Wheel Hubs 31 Engine Maintenance 32 Servicing the Air Cleaner 32 Servicing the Engine Oil 33 Servicing the Spark Plug 35 Fuel System Maintenance 37 Draining the Fuel Tank 37 Servicing the...

Page 4: ...ine and other fuels They are flammable and vapors are explosive Use only an approved container Never remove gas cap or add fuel with engine running Allow engine to cool before refueling Do not smoke N...

Page 5: ...adjustments with the engine running Keep all parts in good working condition and all hardware tightened Replace all worn or damaged decals Toro Mower Safety The following list contains safety informat...

Page 6: ...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 bla...

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 recom...

Page 8: ...afe 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 caus...

Page 9: ...g the height of cut 2 Read the instructions before servicing or performing maintenance 4 Height of cut settings 115 4186 1 Interval 2 Power Take off PTO 3 Parking brake 4 Neutral 5 Operator presence s...

Page 10: ...0456 1 Height of cut HOC high 3 Height of cut HOC low 2 Height of cut HOC medium 117 0485 117 0486 117 0454 1 Traction control 3 Slow 5 Reverse 7 Operator presence switch 2 Fast 4 Neutral 6 Power Take...

Page 11: ...deflector in place 7 Warning engage the parking brake and stop the engine before leaving the machine 4 Cutting dismemberment hazard of hand or foot stay away from moving parts and keep all guards and...

Page 12: ...uge 13 Blade control switch PTO 7 Height of cut lever 14 Left motion control lever Hour Meter The hour meter records the number of hours the engine has operated It operates when the engine is running...

Page 13: ...switch is used to start the mower engine and has three positions Off Run and Start Motion Control Levers The motion control levers are used to drive the machine forward reverse and turn either directi...

Page 14: ...tricity 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 g...

Page 15: ...oad on the engine 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 safe...

Page 16: ...osition G008945 Figure 8 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 cont...

Page 17: ...top to stop the engine Using the Speed Control Lever This machine has a speed control lever that sets the maximum ground speed of the machine This can be adjusted to the operator s desired speed It is...

Page 18: ...ast positions Note A warm or hot engine may not require choking Figure 15 7 Turn the ignition key to the Start position Figure 12 When the engines starts release the key Important Do not engage starte...

Page 19: ...achine Understanding the Safety Interlock System The safety interlock system is designed to prevent the mower blades from rotating unless The right side motion control lever is moved to the center un...

Page 20: ...latform is heavy and may cause injury when lowering and raising the operator platform The platform may suddenly drop if not supported when the latch pin is pulled out Do not put hands or fingers in th...

Page 21: ...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 5 1 2 3 3 4 G013639 Figure 20 1 Front reference...

Page 22: ...hile 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 Pushing the Machine by Hand The by pass valves allow t...

Page 23: ...if the unit starts to tip backward With the platform up a full width ramp provides a surface to walk on behind the unit The operator should determine if it is best to have the platform up or down whe...

Page 24: ...on key to Off Also remove the key and pull the wire s off the spark plug s Adjusting the Height of Cut The height of cut can be adjusted from 1 to 5 inches 25 to 127 mm in 1 4 inch 6 mm increments 1 M...

Page 25: ...over to tighten the baffle and cam lock Figure 28 6 If the cam does 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 the desir...

Page 26: ...ance and improve performance 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 re...

Page 27: ...spark plug Check the battery Check and clean engine cooling fins and shrouds Check the mower deck belt Check the pump drive belt Check the hydraulic hoses Every 200 hours Grease the mower deck spindl...

Page 28: ...n Operation 2 Remove the battery Figure 32 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...

Page 29: ...de 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 cus...

Page 30: ...grease Lubricating the Machine Service Interval Every 50 hours Grease the lift linkage more often in dirty or dusty conditions Every 50 hours Lubricate the speed control linkage rollers more often in...

Page 31: ...wheel Note that thread locking adhesive has been applied to lock the spacer nuts to the axle Remove the axle with the other spacer nut still assembled to it from the wheel assembly 5 Pry out seals an...

Page 32: ...t the foam and paper elements and replace them if they are damaged or excessively dirty Note Service the air cleaner more frequently every few operating hours if the operating conditions are extremely...

Page 33: ...ten in dirty or dusty conditions Every 200 hours Change the engine oil filter Note Change the oil more frequently when the operating conditions are extremely dusty or sandy Note There are different oi...

Page 34: ...y lower than the opposite side to assure the oil drains completely 3 Disengage the PTO move the motion control levers to the neutral locked position and set the parking brake 4 Stop the engine remove...

Page 35: ...clutch is switched on Wipe up any spilled oil 3 Change the engine oil filter Figure 46 g013643 G012845 3 4 2 3 4 5 6 1 Figure 46 Note Ensure the oil filter gasket touches the engine and then an extra...

Page 36: ...7 Checking the Spark Plug Important Never clean the spark plug s Always replace the spark plug s when it has a black coating worn electrodes an oily film or cracks If you see light brown or gray on th...

Page 37: ...51 3 Remove the fuel cap 4 Insert a syphon pump into the fuel tank 5 Using the syphon pump drain the fuel into a clean gas can Figure 50 6 Wipe up any spilled fuel 1 g013644 Figure 50 1 Fuel cap Servi...

Page 38: ...llow metal tools to short between the battery terminals and metal parts of the machine WARNING Incorrect battery cable routing could damage the machine and cables causing sparks Sparks can cause the b...

Page 39: ...rs at 4 to 6 amps 4 When the battery is fully charged unplug the charger from the electrical outlet then disconnect the charger leads from the battery posts Figure 53 5 Install the battery onto the ma...

Page 40: ...et right wheel speed Figure 55 5 Rotate the left cable adjustment to match the left wheel speed to the previously set right wheel speed Adjust in quarter turn increments until the machine tracks strai...

Page 41: ...3 Remove the dust cap from caster and tighten lock nut Figure 57 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 Figur...

Page 42: ...e the fitting on the caster wheel Adjusting the Electric Clutch Service Interval Every 500 hours Check the electric clutch The clutch is adjustable to ensure proper engagement and proper braking 1 Ins...

Page 43: ...ssibility of overheating and mechanical damage to the engine Cleaning the Cooling System Service Interval Every 100 hours Check and clean engine cooling fins and shrouds 1 Disengage the PTO and set th...

Page 44: ...he tire Figure 61 5 Measure the gap from the front of the hand lever to the end of the slot in the control panel when the brake bar contacts the tire This measurement needs to be 3 4 inch 19 mm Adjust...

Page 45: ...6 1 2 3 4 5 6 Figure 62 1 Jam Nut 4 Hairpin cotter pin 2 Yoke 5 Flat washer 3 Clevis pin 6 Lower brake lever 11 After the brake is adjusted the lever switch needs to be checked 12 Check the gap betwee...

Page 46: ...and clutch pulley Figure 64 7 Using a ratchet in the idler arm tighten the idler pulley until the spring is stretched 5 3 4 inches 14 6 cm from hook to hook Figure 64 8 Tighten the front idler pulley...

Page 47: ...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...

Page 48: ...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 moti...

Page 49: ...ydraulic oil or Mobil 1 15W 50 synthetic motor oil Hydraulic System Oil Capacity 67 oz 2 0 l Important Use oil specified Other fluids could cause system damage Checking the Hydraulic Fluid Service Int...

Page 50: ...e the hydraulic filter and hydraulic oil when using Mobil 1 oil Every 500 hours Change the hydraulic filter and hydraulic oil when using Toro HYPR OIL 500 hydraulic oil WARNING Hot hydraulic fluid can...

Page 51: ...id to the tank until it reaches the cold baffle of the tank Important Use oil specified or equivalent Other fluids could cause system damage 9 Start engine and let run for about two minutes to purge a...

Page 52: ...draulic system Mower Deck Maintenance Servicing the Cutting Blades To ensure a superior quality of cut keep the blades sharp For convenient sharpening and replacement you may want to keep extra blades...

Page 53: ...maged blade with a new blade Never file or create sharp notches in the edges or surfaces of blade Removing the Blades Blades must be replaced if a solid object is hit if the blade is out of balance or...

Page 54: ...t the spark plug wire s from the spark plug s 3 Adjust the tire pressure in the rear tires to 12 14 psi 83 97 kPa 4 Check that the blades and spindle shafts are not bent Refer to Checking for Bent Bla...

Page 55: ...ower blade should be a 1 4 inch 6 mm lower in front at A than in the rear at B Rotate blades and repeat for other blades If it is not correct proceed to Changing the Deck Front to Rear Pitch Figure 83...

Page 56: ...of the blade tips Figure 86 Figure 86 1 Measure from a level surface 2 Measure blade at point A 4 The measurement should be 3 inch 7 6 cm 5 If it does not measure correctly locate the height of cut r...

Page 57: ...around grass deflector Figure 88 Important The grass deflector must be able to rotate Lift the deflector up to the full open position and ensure that it rotates into the full down position Cleaning Cl...

Page 58: ...torage A Add stabilizer conditioner additive to fuel in the tank B Run engine to distribute conditioned fuel through the fuel system 5 minutes C Stop engine allow to cool and drain the fuel tank refer...

Page 59: ...orized 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 the eng...

Page 60: ...ll 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 adjustment 6 Adjust the...

Page 61: ...Schematics Hydraulic Schematic Rev A 61...

Page 62: ...Electrical Schematic Rev A 62...

Page 63: ...Notes 63...

Page 64: ...re Department Toro Warranty Company 8111 Lyndale Avenue South Bloomington MN 55420 1196 888 865 5676 U S Customers 888 865 5691 Canada customers Owner Responsibilities You must maintain your Toro Prod...

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