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Form No. 3376-433 Rev A

Commercial Walk-Behind Mower

Floating Deck, T-Bar, Gear Drive with 36in or
48in TURBO FORCE

Cutting Unit

Model No. 30074—Serial No. 313000001 and Up

Model No. 30078—Serial No. 313000001 and Up

Model No. 39074—Serial No. 313000001 and Up

Model No. 39078—Serial No. 313000001 and Up

g014793

*3376-433* A

Содержание 30074

Страница 1: ...ve with 36in or 48in TURBO FORCE Cutting Unit Model No 30074 Serial No 313000001 and Up Model No 30078 Serial No 313000001 and Up Model No 39074 Serial No 313000001 and Up Model No 39078 Serial No 313000001 and Up g014793 Register at www Toro com Original Instructions EN 3376 433 A ...

Страница 2: ...ies 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 a dealer or to register your product When...

Страница 3: ...2 Engine Maintenance 23 Servicing the Air Cleaner 23 Servicing the Engine Oil 24 Servicing the Spark Plugs 26 Fuel System Maintenance 27 Draining the Fuel Tank 27 Replacing the Fuel Filter 27 Electrical System Maintenance 28 Servicing the Fuse 28 Drive System Maintenance 28 Adjusting the Control Bar 28 Checking the Tire Pressure 29 Replacing the Caster Wheel Fork Bushings 29 Servicing the Caster W...

Страница 4: ...hat operator s presence controls safety switches and shields are attached and functioning 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 h...

Страница 5: ...r when equipped with a grass bagger for catching cut grass Any use for purposes other than these could prove dangerous to user and bystanders General Operation Be sure the area is clear of other people before mowing Stop the machine if anyone enters the area Do not touch equipment or attachment parts which may be hot from operation Allow to cool before attempting to maintain adjust or service Use ...

Страница 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 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 6 ...

Страница 7: ...y visible to the operator and are located near any area of potential danger Replace any decal that is damaged or lost 1 403005 52 2010 66 1340 68 8340 82 2280 REVERSE TRACTION DRIVE 82 2280 82 2290 98 0776 98 3256 98 4387 1 Warning wear hearing protection 98 5954 104 8185 7 ...

Страница 8: ...104 8186 48 inch mower 104 8569 105 7798 106 0699 110 2067 110 2068 1 Read the Operator s Manual 117 2718 106 0635 105 0884 8 ...

Страница 9: ...h all the controls Figure 5 before you start the engine and operate the machine Figure 5 1 Gear shift lever 7 Blade control bail 2 Power take off switch PTO 8 Upper control bar 3 Choke control 9 Upper handle 4 Lower handle 10 Throttle control 5 Lower control bar 11 Ignition switch 6 Parking brake lever released position 12 Fuel shut off valve Throttle Control The throttle control has two positions...

Страница 10: ...ist operation Parking Brake Lever Pull back on upper control bar and swing brake lever up against the upper handle Figure 5 Ignition Switch This switch is used in conjunction with recoil starter and has two positions Run and Off Recoil Starter Pull recoil starter handle to start engine not shown in Figure 5 Fuel Shut off Valve Close the fuel shut off valve when transporting or storing mower Specif...

Страница 11: ...ricity 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 carpets or plastic truck bed liners may insulate the container...

Страница 12: ...ey Always set the parking brake when you stop the machine or leave it unattended Setting the Parking Brake 1 Pull the upper control bar Figure 7 rearward and hold it in this position 2 Lift the parking brake lock Figure 7 up and gradually release the upper control bar The brake lock should stay in the set locked position Figure 7 1 Upper control bar 3 Fixed bar 2 Parking brake lever set position R...

Страница 13: ...operating 4 Repeat the procedure to engage the mower blades if the blade control bail is released Figure 9 1 Upper control bar 3 Power take off switch PTO 2 Blade control bail Disengaging the Mower Blades PTO Release the blade control bail to disengage the blades Figure 9 The Safety Interlock System CAUTION If the safety interlock switches are disconnected or damaged the machine could operate unex...

Страница 14: ...ly press on the upper control bar to move forward Figure 10 To go straight apply equal pressure to both ends of the upper control bar Figure 10 To turn release pressure on the upper control bar side in the direction you want to turn Figure 10 Figure 10 1 Upper control bar 3 Shift lever 2 Lower control bar Driving Backward 1 To go backward move the shift lever to reverse gear 2 Release the parking ...

Страница 15: ... upper control bar release the blade control bail and turn the ignition key to off Also set the parking brake if you leave the machine unattended refer to Setting the Parking Brake in page Remember to remove the key from the ignition switch 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 ...

Страница 16: ...t pins can use two spacers maximum 1 Select hole in height of cut post and number of spacers corresponding to the height of cut desired Figure 13 2 Using the lift handle raise side of deck and remove hairpin cotter Figure 13 3 Add or remove spacers if needed and then align the holes and insert the hairpin cotter Figure 13 Note Spare height of cut spacers may be stored on posts and retained by a ha...

Страница 17: ...scalp rollers to the minimum setting of 3 8 inch 10 mm will help prevent the mower deck cutting too low on the outside and minimize the mismatch Adjusting the Handle Height The handle position can be adjusted to match the operator s height preference 1 Remove the hairpin cotter washer and clevis pin securing control rod fitting to the idler bracket Figure 17 Figure 17 1 Control rod and fitting 4 W...

Страница 18: ...e cam lock and baffle to give the best quality 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 19 4 Adjust the baffle and nut in the slot to the desired discharge flow and tighten...

Страница 19: ...tions and for operator preference Figure 23 or Figure 24 The following table indicates the position of the weight as installed at the factory Mower Deck Size Number of weights install Position of the weight 36 inches none none 48 inches 2 Rear Any rear weight must be removed when a Tru Track Sulky is installed When a Tru Track Sulky is installed front weights are needed Contact an Authorized Servi...

Страница 20: ...Figure 24 Installing the rear weight 1 Nut 3 Washer 2 Weight 4 Bolt 20 ...

Страница 21: ...lt Check the PTO drive belt Every 100 hours Change the engine oil Check the spark plugs Adjust the electric clutch Every 200 hours Replace the paper air cleaner element Change the oil filter Replace the fuel filter Every 250 hours Grease the transmission couplers more often in dirty or dusty conditions Every 400 hours Grease the front wheel bearings more often in dirty or dusty conditions Before s...

Страница 22: ...ivots Figure 25 Figure 25 2 Raise the rear of the machine and use jack stands to support the machine 3 Remove the rear wheel and tire assemblies 4 Remove the rear wheel grease cap Lubricate the rear wheel bearing Figure 25 5 Install the grease cap 6 Install the rear wheel and tire assembly Note Make sure the rear wheel grease caps are removed before lubricating rear wheels Greasing the Transmissio...

Страница 23: ...tremely dusty or sandy Important Do not oil the foam or paper element Removing the Foam and Paper Elements 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 Clean around the air cleaner to prevent dirt from getting into the engine and causing damage Figure 29 Figure 29 1 Cover 3 Paper element...

Страница 24: ... level After the first 8 hours Change the engine oil Every 100 hours Change the engine oil Every 200 hours Change the oil filter Note Change the oil more frequently when the operating conditions are extremely dusty or sandy Oil Type Detergent oil API service SF SG SH SJ or SL Crankcase Capacity 58 ounces 1 7 liter with the filter removed 51 ounces 1 5 liter without the filter removed Viscosity Ref...

Страница 25: ... refer to Checking the Engine Oil Level 10 Slowly add the additional oil to bring it to the Full mark Changing the Oil Filter Note Change the oil filter more frequently when the operating conditions are extremely dusty or sandy 1 Drain the oil from the engine refer to Changing the Engine Oil 2 Remove the old filter Figure 33 Figure 33 1 Oil filter 2 Adapter 3 Apply a thin coat of new oil to the ru...

Страница 26: ...revent dirt from falling into the engine and potentially causing damage 5 Remove the spark plugs and the metal washers Checking the Spark Plugs 1 Look at the center of the spark plugs Figure 35 If you see light brown or gray on the insulator the engine is operating properly A black coating on the insulator usually means that the air cleaner is dirty 2 If needed clean the spark plug with a wire bru...

Страница 27: ...into a gas can or drain pan Note Now is the best time to install a new fuel filter because the fuel tank is empty Refer to Replacing the Fuel Filter 5 Install the fuel line onto the fuel filter Slide the hose clamp close to the valve to secure the fuel line Figure 36 1 Fuel shut off valve 2 Clamp Replacing the Fuel Filter Service Interval Every 200 hours Never install a dirty filter if it is remov...

Страница 28: ...d The gap should be approximately 1 to 1 1 4 inch 25 32 mm Figure 39 Note The upper control bar and fixed bar must be parallel when the upper control bar is in the engaged drive neutral or brake positions Figure 39 1 Upper control bar 4 Handle 2 Parking brake lever 5 1 to 1 1 4 inch 25 32mm gap 3 Fixed control bar 2 Check the operation If adjustment is required remove hairpin cotter washer and cle...

Страница 29: ...and bottom of the carrier frame mounting pivot tubes To check the bushings move the caster forks back and forth and side to side If a caster fork is loose the bushings are worn and must be replaced 1 Raise the cutting unit so the caster wheels are off the floor then support the front of the mower with jack stands 2 Remove the locking pin and spacer s from the top of the caster wheel fork Figure 42...

Страница 30: ...4 1 Locknut 4 Spanner Bushing 2 Cap 5 Wheel 3 Roller Bearing 6 Bushing 2 Remove one bushing then pull the spanner bushing and roller bearing out of the wheel hub Figure 44 3 Remove the other bushing from the wheel hub and clean any grease and dirt from the wheel hub Figure 44 4 Inspect the roller bearing bushings spanner bushing and inside of the wheel hub for wear Replace any defective or worn pa...

Страница 31: ...aintenance Cleaning the Air Intake Screen Service Interval Before each use or daily Remove any build up of grass dirt or other debris from the cylinder and cylinder head cooling fins air intake screen on flywheel end and carburetor governor levers and linkage This will help insure adequate cooling and correct engine speed and will reduce the possibility of overheating and mechanical damage to the ...

Страница 32: ...wing nut until it is 1 1 4 inches from the top of the rod Figure 46 1 Park the machine on a level surface 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 Check the brake before you adjust it refer to Checking the Brakes 4 Release the parking brake refer to Releasing the Parking Brake 5 To adj...

Страница 33: ...nect clutch wire connector from wire harness 6 Disconnect clutch retainer from the engine deck Figure 48 Figure 48 1 Transmission belt 5 Clutch wire connector 2 Idler pulley 6 Pivot bolt 3 Clutch retainer 7 Drive pulley 4 Tension spring 8 Engine deck 7 Unhook tension spring from side of frame Figure 48 8 Loosen pivot bolt enough to remove traction belt from the drive pulley and clutch 9 Install ne...

Страница 34: ...cutting grass frayed belt edges burn marks and cracks are signs of a worn drive belt Replace the drive belt if any of these conditions are evident 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 Unlatch and remove the carrier frame cover 4 Unlatch and remove the belt covers 5 Remove the hea...

Страница 35: ...r Deck shown 1 PTO drive belt guide 4 PTO engagement pulley 2 PTO drive Belt 5 PTO drive belt idler pulley 3 Idler spring 6 Center spindle pulley Figure 52 36 inch Mower Deck shown 1 Mower deck belt 4 Clutch pulley 2 PTO Drive Belt 5 Idler pulley 3 Idler arm and spring Adjusting the PTO Drive Belt Idler Spring Anchor The position of the PTO idler can be adjusted to increase or decrease belt tensio...

Страница 36: ...ack in the curved area 2 Inspect the blades especially the curved area Figure 54 If you notice any cracks wear or a slot forming in this area item 3 in Figure 54 immediately install a new blade Checking for Bent Blades 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 be...

Страница 37: ...ndle shaft Figure 57 Figure 57 48 inch Mower Decks 1 Sail Area of Blade 3 Curved washer 2 Blade 4 Blade Bolt 3 For 36 inch mower decks remove the blade bolt curved washer blade stiffener and blade from the spindle shaft Figure 58 Figure 58 36 inch Mower Decks 1 Sail Area of Blade 4 Curved washer 2 Blade 5 Blade Bolt 3 Blade stiffener Sharpening the Blades 1 Use a file to sharpen the cutting edge a...

Страница 38: ...eight of cut to the 4 inch 101 6 mm position Refer to Adjusting the Height Of Cut 6 Perform the steps in the following sections Frame Set Up Checking Front to Rear Pitch and Checking Side to Side Leveling Frame Set Up Checking the Carrier Frame and Engine Deck Alignment Note Misalignment can cause excess wear on the PTO drive belt 1 Disengage the PTO and set the parking brake 2 Stop the engine rem...

Страница 39: ...5 Caster Wheel 3 24 inches 61 cm 6 Caster spacers 2 Measure carrier frame height at location A Figure 63 3 Measure carrier frame height at location B Figure 63 4 The height at location A must be a 1 4 3 8 inch 6 mm 10 mm lower than location B Figure 63 5 If the carrier frame is not correct move caster spacers to make it a 1 4 3 8 inch 6 10 mm pitch Figure 63 Move spacers from top or bottom to make...

Страница 40: ...ure 65 48 inch Mower Deck shown 1 Measure blade at points A and B 2 Measure from a level surface Figure 66 36 inch Mower Deck shown Changing the Mower Deck Front to Rear Pitch Changing the front to rear pitch is done by adjusting the front height of cut posts 1 To change the front to rear pitch the front height of cut posts can be adjusted Figure 67 Figure 67 1 Caster Wheel 4 Jam nut 2 Carrier Fra...

Страница 41: ...ck Side to Side Height Changing the side to side height is done by adjusting the rear tire pressure and caster spacers 1 Change the rear tire pressure Do this to the corresponding side that needs adjustment 2 Adjust the caster spacer 3 Recheck the front to rear pitch and side to side leveling of the cutting unit Matching Height of Cut 1 Check the rear tire pressure 2 Set the height of cut to the 4...

Страница 42: ...s deflector or bagger 1 Remove the locknut bolt spring and spacer holding the deflector to the pivot brackets Figure 72 Remove the damaged or worn grass deflector g015594 1 6 2 4 7 3 5 Figure 72 1 Bolt 5 Spring installed 2 Spacer 6 Grass Deflector 3 Locknut 7 J hook end of spring 4 Spring 2 Place the spacer and spring onto the grass deflector Place one J end of the spring behind the deck edge Note...

Страница 43: ... 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 to Servicing the Fuel Tank in Fuel System Maintenance page 27 or operate engine until it stops D Restart engine and run until it stops Repeat on Choke until engine will not restart E Dispose of fuel properly Recycle as per local codes Note Do not stor...

Страница 44: ...ized 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 engine blower housing are plugged 3 Remove the obstruction from the cooling fins and air passages 1 Shift lever is in neutral 1 Move shift lever to a drive gear position 2 Traction belt is worn loose or br...

Страница 45: ...lley 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 clutch air gap 7 Clutch connector or wire damaged 7 Contact an Authorized Service Dealer 8 Damaged electric clutch 8 Contact an Authorized Service Dealer 9 Safety interlock system prevents blade rotation 9 Cont...

Страница 46: ...Schematics Electrical Schematic Rev A 46 ...

Страница 47: ...Notes 47 ...

Страница 48: ... 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 Department Toro Warranty Company 8111 Ly...

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