Toro 74952 Operator'S Manual Download Page 65

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Schematics

Wire Diagram (Rev. A)

Summary of Contents for 74952

Page 1: ...in 52in or 60in TURBO FORCE Side Discharge Mower Model No 74952 Serial No 315000001 and Up Model No 74953 Serial No 315000001 and Up Model No 74957 Serial No 315000001 and Up Model No 78953 Serial No 315000001 and Up Register at www Toro com Original Instructions EN 3394 318 A ...

Page 2: ... mower is intended to be used by residential homeowners or professional hired operators It is designed primarily for cutting grass on well maintained lawns 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 resp...

Page 3: ...ecking 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 41 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 Nuts 44 ...

Page 4: ... properly Do not operate unless they 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 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 the...

Page 5: ...tact with the rim of the fuel tank or container opening at all times until fueling is complete Do not use a nozzle lock open device If fuel is spilled on clothing change clothing immediately Never overfill fuel tank Replace fuel cap and tighten securely Maintenance and Storage Disengage drives set the parking brake stop the engine and remove the key or disconnect the spark plug wire Wait for all m...

Page 6: ... 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 15 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 6 ...

Page 7: ... 6520 1 Grease 93 7818 1 Warning read the Operator s Manual for instructions on torquing the blade bolt nut to 115 149 N m 85 110 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 7 ...

Page 8: ...3 Read the Operator s Manual drive slowly and carefully 107 3969 1 Warning read the Operator s Manual 2 Crushing hazard mower 1 Engage the parking brake stop the engine and remove the ignition key 2 Properly jack the machine before working under the machine 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 C...

Page 9: ...il 117 0346 1 Fuel leak hazard read the Operator s Manual do not attempt to remove the roll bar do not weld drill or modify the roll bar in any way 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 fro...

Page 10: ...inuous variable setting 2 Choke 5 Slow 3 Fast 126 2055 1 Wheel lug nut torque 95 ft lb 129 N m 4x 2 Wheel hub nut torque 235 ft lb 319 N m 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 10 ...

Page 11: ...xplosion hazard 6 Keep bystanders a safe 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 no...

Page 12: ...Not operate when people and pets are in the area Keep deflector in place 3 Warning Disengage PTO move drive levers out to neutral lock position engage parking brake and stop engine before leaving the operator s position 6 Crushing dismemberment hazard of bystanders do not carry passengers look forward and down when operating the machine look behind and down when reversing 125 9383 1 Check hydrauli...

Page 13: ...slopes near open water do not use this machine on slopes greater than 15 degrees 2 Ramp hazard when loading onto a trailer do not use dual ramps only use a singular ramp wide enough for the machine and that has an incline less than 15 degrees back up the ramp in reverse and drive forward off the ramp 13 ...

Page 14: ...fuel indicator light 3 Hour meter 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 6 Safety Interlock Indicators There are symbols on the hour meter and the indicate with a black triangle that the interlock component is in the correct position Figure 6 Battery Indicator Lig...

Page 15: ...se 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 Width 48 inch Deck 52 inch Deck 60 inch Deck Without deck 116 1 cm 45 7 inches 116 1 cm 45 7 inches 134 6 cm 53 0 inches Deflec...

Page 16: ...gasoline Do not operate without the entire exhaust system in 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 gaso...

Page 17: ...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 bar is in the down position Lower the roll bar ...

Page 18: ... could help you or bystanders avoid injury DANGER Operating on wet grass or steep slopes can cause sliding and loss of control Wheels dropping over edges can cause rollovers which may result in serious injury death or drowning There is no rollover protection when the roll bar is down Always keep the roll bar in the fully raised and locked position and use the seat belt Read and follow the rollover...

Page 19: ...tended 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 attachme...

Page 20: ...osition 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 Additional starting cycles may be required when starting the engine for the first time after the fuel system has been c...

Page 21: ...arts release the key Stopping the Engine CAUTION Children or bystanders may be injured 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 Let the engine idle at slow throttle turtle for 60 seconds before turning the ignition switch off g027337 A B C D E Fig...

Page 22: ...nd move the blade control switch PTO to on 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 off Move either motion control lever out of neutral locked position Try starting the engine the engine should not crank Repeat for other control lever 3 Sitting on the seat engage the parking brake move the blade cont...

Page 23: ...brake engaged To stop pull the motion control levers to the neutral position 1 Release the parking brake refer to Releasing the Parking Brake in Operation 2 Move the levers to the center unlocked position 3 To go forward slowly push the motion control levers forward Figure 23 G008952 Figure 23 Driving Backward 1 Move the levers to the center unlocked position 2 To go backward slowly pull the motio...

Page 24: ...rate 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 two positions and is used with the deck lift pedal There is a lock position and a unlock position for the transport position The transport lock is used with the...

Page 25: ...26 5 Push on the deck lift pull back on the transport lock and slowly lower the mower deck Figure 26 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 locked position and s...

Page 26: ...n the slots to the desired discharge flow 5 Swing the lever back over to tighten the baffle and cam locks Figure 30 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 the desired locking pressure is achieved Figure 30 Positioning the Flow Baffle The following figures are only recommendations for use Adjust...

Page 27: ...ts to stop 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 se...

Page 28: ...re that the grass deflector is in the down position Transporting the Machine Use a heavy duty trailer or truck to transport the machine Ensure that the trailer or truck has all necessary brakes lighting and marking as required by law Please carefully read all the safety instructions Knowing this information could help you your family pets or bystanders avoid injury WARNING Driving on the street or...

Page 29: ...iler or truck increases the possibility of tip over and could cause serious injury or death Use extreme caution when operating a machine on a ramp Ensure that the ROPS is in the up position and use the seat belt when loading or unloading the machine Ensure that the ROPS will clear the top of an enclosed trailer Use only a full width ramp do not use individual ramps for each side of the machine Do ...

Page 30: ...frequently If you cannot mow for an extended period first mow at a high cutting height then mow again two days later at a lower height setting Cutting Speed To improve cut quality use a slower ground speed in certain conditions Avoid 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 turf is not cut too short...

Page 31: ...tions Check and gap the spark plugs Check and clean engine cooling fins and shrouds Every 200 hours Change the engine oil filter Every 250 hours Replace the primary air filter Check the secondary air filter 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 filter Replace the fuel filter more often...

Page 32: ...to ooze out of the bearings 5 Wipe up any excess grease Using Light Oil or Spray Lubrication Service Interval Every 100 hours Deck lift pivots G017028 Figure 39 Lubricating 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 front ...

Page 33: ...t seals and inspect the bearings for wear or damage and replace them if necessary 7 Pack the bearings with a general purpose grease 8 Insert one bearing one new seal into the wheel Note The seals must be replaced 9 If the axle assembly has had both spacer nuts removed or broken loose apply a thread locking adhesive to one spacer nut and thread it onto the axle with the wrench flats facing outward ...

Page 34: ...e Filters 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 Push down to release the retaining clamps on the air cleaner and pull the air cleaner cover off of the air cleaner body Figure 44 4 Clean the inside of the air cleaner cov...

Page 35: ... it Important Do not press on the soft inside area of the filter 4 Install the air cleaner cover with the breather cap down and rotate so the retaining clamps lock the cover in place Figure 44 Servicing the Engine Oil Oil Type Detergent oil API service SG SH SJ or SL Crankcase Capacity with a filter change 2 1 L 2 2 US qt without a filter change 1 8 L 1 9 US qt Viscosity See the table below Figure...

Page 36: ...he used oil at a recycling center 1 Park the machine so that the rear is slightly lower than the front to ensure the oil drains completely 2 Disengage the PTO move the motion control levers to the neutral locked position and set the parking brake 3 Stop the engine remove the key and wait for all moving parts to stop before leaving the operating position Figure 47 G008804 Figure 47 36 ...

Page 37: ...rvice 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 refer to Changing the Engine Oil page 36 2 Change the engine oil filter Figure 49 G008804 B A C D E F 3 4 g027477 Figure 49 Note Ensure the oil filter gasket touches the engine and then an extra 3 4 turn is completed 3 Fill the cran...

Page 38: ...ipping the bolts free of the retainers 1 Stop the engine remove the key and wait for all moving parts to stop before leaving the operating position 2 Disengage the PTO move the motion control levers to the neutral locked position and set the parking brake 3 Remove the hydraulic unit shroud and the 2 bolts attached to it Figure 50 This gives you access to the front spark plug G012432 2 1 2 Figure 5...

Page 39: ...er on 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 locked position and set the parking brake 2 Stop the engine remove the key...

Page 40: ...ng 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 no...

Page 41: ...he red terminal boot onto the positive red battery post 6 Install the clamp and secure it with the wing nut Figure 55 Charging the Battery WARNING Charging the battery produces gases that can explode Never 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 ...

Page 42: ...ollover 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 the seat is secured to the machine Check that both the mounting hardware and the knobs are in good working condition Make sure the knobs are fully engaged with the ROPS in the raised position...

Page 43: ...en the bolts and adjust the left stop plate rearward on the left T slot until the machine tracks straight Figure 59 7 If it tracks to the left loosen the bolts and adjust the right stop plate rearward on the right T slot until the machine tracks straight Figure 59 8 Tighten the stop plate Figure 59 g027340 Figure 59 Left control lever shown 1 Control lever 3 Stop plate 2 Bolt Checking the Tire Pre...

Page 44: ...ey and wait for all moving parts to stop before leaving the operating position 3 Remove the dust cap from caster and tighten lock nut Figure 62 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 62 Important Make sure the spring washers are installed correctly as shown in Figure 62 5 Install the dust cap Figure 6...

Page 45: ...pole has worn to match the armature and needs to continue to match after the shim is removed to ensure proper brake torque Figure 65 1 Brake mounting bolt B Using needle nose pliers or by hand take hold of the tab and remove the shim Note Do not discard the shim until proper clutch function has been confirmed Figure 66 1 Shim C Using a pneumatic line blow out any debris from under the brake pole a...

Page 46: ... of grass dirt or other debris from the oil cooler Figure 69 G008804 Figure 69 Before each use remove any buildup of grass dirt or other debris from the engine screen This will help ensure adequate cooling and correct engine speed and will reduce the possibility of overheating and mechanical damage to the engine Figure 70 Cleaning the Engine Cooling Fins and Shrouds Service Interval Every 100 hour...

Page 47: ...terval 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 operating position 3 Move the seat forward 4 Clean the debris and grass from the hydraulic units Figure 71 5 Position the seat g0151 17 Figure 71 1 Hydraulic units 47 ...

Page 48: ... the Drive Wheel Release Valves page 27 8 Check to see if there is a visible gap between the L bracket and the linkage stop Figure 72 Figure 72 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 sho...

Page 49: ...ore leaving the operating position 3 Lower the mower to the 76 mm 3 inch height of cut 4 Remove the belt covers Figure 73 Figure 73 1 Push tab down 2 Remove belt cover 5 Use a ratchet in the square hole in the idler arm to remove tension on the idler spring Figure 74 6 Remove the belt from the mower deck pulleys 7 Remove the belt guide on the spring loaded idler arm shown in Figure 74 8 Remove the...

Page 50: ...stop before leaving the operating position 3 Remove mower belt Refer to Replacing the Mower Belt page 49 4 Raise the machine and support it with jack stands Figure 76 Figure 76 1 Idler pulley 5 Left hand hydraulic pump pulley 2 Clutch pulley 6 Square hole in idler arm 3 Pump drive belt 7 Idler spring 4 Right hand hydraulic pump pulley 5 Use a ratchet in the square hole in the idler arm to remove t...

Page 51: ...t positions for the control levers high and low Remove the bolts to adjust the height for the operator 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 Loosen the bolts and flange nuts installed in the levers Figure 77 4 Align the...

Page 52: ... and motion control levers out to start engine You do not have to be in the seat because of the jumper wire being used Run the engine at full throttle and release the brake 6 Run the unit at least 5 minutes with the drive levers at full forward speed to bring hydraulic oil up to operating temperature Note The motion control lever needs to be in neutral while making any necessary adjustments 7 Brin...

Page 53: ... filter change Checking the Hydraulic Oil Service Interval Every 50 hours Check the hydraulic oil level 1 Position the machine on a level surface 2 Disengage the PTO move the motion control levers to the neutral locked position and set the parking brake 3 Stop the engine remove the key and wait for all moving parts to stop before leaving the operating position 4 Allow the engine and the hydraulic ...

Page 54: ...s 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 be ...

Page 55: ...he mower deck is leveled 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 locked position and set the parking brake 3 Stop 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: ... 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 87 Note To increase the height turn the adjuster screw clockwise to decrease the height turn it counterclockwise Figure 87 1 Flanged locknut 3 Jam nut 2 Adjuster screw 4 Yoke 11 If the front deck links do not have enough adjustment to...

Page 57: ...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 File down any nicks and sharpen the blades as necessary If a blade is damaged or worn replace it immediately with a genuine Tor...

Page 58: ...ys replace bent or damaged 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 is bent To ensure optimum performance and continued safety conformance of the machine use genuine Toro replacement blades Replacement blades made by other manufacturers may resul...

Page 59: ...ing the mower deck the spring loaded deck arms must be locked out WARNING Deck lift arm assemblies have stored energy Removing the deck with out releasing the stored energy can cause serious injury or death Do not attempt to disassemble the deck from the front frame without locking out the stored energy 1 Stop the engine wait for all moving parts to stop and remove the key Engage the parking brake...

Page 60: ... operator or a bystander and result in serious personal injury or death Never operate the machine unless you install a cover plate a mulch plate a grass deflector or a bagger 1 Remove the locknut bolt spring and spacer holding the deflector to the pivot brackets Figure 98 Remove the damaged or worn grass deflector g015594 1 6 2 4 7 3 5 Figure 98 1 Bolt 5 Spring installed 2 Spacer 6 Grass deflector...

Page 61: ...Brake Maintenance 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 Servicing the Engine Oil page 35 7 Check the tire pressure refer to Checking the Tire Pressure page 43 8 Change the hydraulic filters refer to Servicing the Hydraulic System page 53 9 Charge the battery ref...

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: ... provided contact us at RLC Customer Care 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 Product by following the maintenance procedures described in the Operator s Manual Such routine maintenance whether performed by a dealer or by you is at your expens...

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