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the mower belt if any of these conditions are
evident.

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. Remove the belt covers.

4. Loosen the nut securing the idler plate and

move the idler plate to relieve the belt tension
on the idler pulley (Figure 54).

5. Remove the nut, washer and belt guide from

the rear leftside pulley.

6. Remove the mower belt from the belt guides

and remove the belt (Figure 54).

7. Install the new mower belt around the mower

spindle pulleys, mower idler pulley, into the
belt guides, into rear idler arm assembly, and
the clutch (Figure 54).

8. Install the belt guide with a washer and nut

onto the rear leftside pulley.

Note:

Check the amount of twist in the belt

between the pulleys. Ensure it is only what is
speciﬁed in Figure 54.

Figure 54

1. Clutch

6. Mower idler pulley

2. Mower belt

7. Belt guide installed

3. 1/4 trun belt twist

8. Nut

4. Belt guide

9. Washer

5. Mower spindle pulley

10. Rear left side pulley

9. Adjust the belt tension, refer to Adjusting the

Mower Belt Tension

10. Install the belt covers and close the latches

(Figure 55).

Figure 55

1. Belt cover

3. Insert slot into the tab

2. Latch

Содержание 74272CP

Страница 1: ...ev A Z558 Z Master with 60in or 72in TURBO FORCE Side Discharge Mower Model No 74272CP Serial No 270002001 and Up Model No 74273CP Serial No 270002001 and Up Register your product at www Toro com Original Instructions EN ...

Страница 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 or Toro Customer Service and have the model and serial numbers of your product ready Figure 1 identiﬁes the location of the model and serial numbers on the product Write the numbers in the space provid...

Страница 3: ...e Fuel Filter 36 Servicing the Fuel Tank 37 Electrical System Maintenance 37 Servicing the Battery 37 Servicing the Fuses 39 Drive System Maintenance 40 Adjusting the Tracking 40 Checking the Tire Pressure 40 Checking the Wheel Hub Slotted Nut 40 Adjusting the Caster Pivot Bearing 41 Cooling System Maintenance 41 Cleaning the Engine Screen and the Oil Cooler 41 Cleaning the Engine Fins 42 Brake Ma...

Страница 4: ...cessories and attachments approved by the manufacturer Wear appropriate clothing including hard hat safety glasses and hearing protection Long hair loose clothing or jewelry may get tangled in moving parts Inspect the area where the equipment is to be used and remove all objects such as rocks toys and wire which can be thrown by the machine Use extra care when handling gasoline and other fuels The...

Страница 5: ...nsfer to the front wheels may cause drive wheels to slip and cause loss of braking and steering Always avoid sudden starting or stopping on a slope If tires lose traction disengage the blades and proceed slowly off the slope Follow the manufacturer s recommendations for wheel weights or counterweights to improve stability Use extreme care with grass catchers or other attachments These can change t...

Страница 6: ...nly 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 Charge batteries in an open well ventilated area away from spark and ﬂames Unplug charger before connecting or disconnecting from battery Wear protective clothing and use insulated tools Keep all parts in good working condition and all hardware tig...

Страница 7: ...Slope Chart 7 ...

Страница 8: ...afety decals and instructions are easily visible to the operator and are located near any area of potential danger Replace any decal that is damaged or lost 1 403005 1 523552 1 633462 1 643339 54 9220 58 6520 1 Grease 66 1340 68 8340 8 ...

Страница 9: ...98 4387 1 Warning wear hearing protection 98 5954 103 5881 105 7798 105 7797 107 1621 107 1857 110 2067 9 ...

Страница 10: ...110 2068 1 Read the Operator s Manual 107 2112 107 1860 107 1861 107 1864 107 1613 10 ...

Страница 11: ...indness 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 108 5278 1 Read the Operator s Manual Manufacturer s Mark 1 Indicates the blade is identi ed as a part from the original machine manufactur...

Страница 12: ...110 5731 1 Engine stop 5 Continuous variable setting 2 Engine run 6 Slow 3 Engine start 7 Power take off PTO 4 Fast 106 7492 12 ...

Страница 13: ...106 9989 107 8076 1 Fast 2 Slow 3 Neutral 4 Reverse 13 ...

Страница 14: ...liar with all the controls before you start the engine and operate the machine Figure 3 and Figure 4 Figure 4 1 Gas cap 4 Throttle 2 Choke 5 Power take off PTO 3 Ignition switch 6 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 4 14 ...

Страница 15: ...ystem in place and in proper working condition 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 o...

Страница 16: ...ankcase refer to Checking the Oil Level in Engine Maintenance page 33 Using the Rollover Protection System ROPS To avoid injury or death from rollover keep the roll bar in the raised locked position and use the seat belt Ensure that the rear part of the seat is secured with the seat latch There is no rollover protection when the roll bar is in the down position Lower the roll bar only when absolut...

Страница 17: ...es 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 raised and locked position and use the seat belt Read and follow the rollover protection instructions and warnings To avoid loss of control and possibility of rollover D...

Страница 18: ...r should stay ﬁrmly in the engaged position 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 Releasing the Parking Brake Push forward and down on the parking brake lever to release the parking brake Figure 9 The parking brake is disengaged and the lever will rest against the brake stop...

Страница 19: ...move the throttle lever to desired setting Repeat this as required Stopping the Engine 1 Push the PTO to the off position Figure 10 2 Move the throttle lever midway between the slow and fast positions Figure 12 3 Let the engine idle for 60 seconds 4 Turn the ignition key to the off position and remove the key Figure 13 5 Close the fuel shut off valve before transporting or storing the machine Refe...

Страница 20: ...erlock system is designed to prevent the engine from starting unless You are sitting on the seat The parking brake is engaged The power take off PTO is disengaged The motion control levers are in the neutral locked position The safety interlock system also is designed to stop the engine when the traction controls are moved from the locked position with the parking brake engaged or if you rise from...

Страница 21: ...king sharp turns Driving Forward 1 Release the parking brake refer to Releasing the Parking Brake 2 Move the levers to the center un locked position 3 To go forward slowly push the motion control levers forward Figure 15 Note The engine will kill if the traction control levers are moved with the parking brake engaged To go straight apply equal pressure to both motion control levers Figure 15 To tu...

Страница 22: ... Most resistance or rmest feel Adjusting the Height of Cut The height of cut is adjusted from 1 1 2 to 5 inch 38 to 127 mm in 1 4 inch 6 mm increments by relocating the clevis pin into different hole locations 1 Raise the height of cut lever to the transport position also the 5 inch 127 mm cutting height position Figure 17 Figure 17 1 Height of cut lever 2 Clevis Pin 2 To adjust remove the clevis ...

Страница 23: ...arest corresponding height of cut desired Figure 19 Note Do not adjust the rollers to support the mower housing 5 Install the center rollers bushing spacer bolt and nut Figure 19 6 Torque the bolt to 40 to 45 ft lb 54 to 61 N m Adjusting the Flow Baf e The mower discharge ﬂow can be adjusted for different types of mowing conditions Position the cam locks and bafﬂe to give the best quality of cut 1...

Страница 24: ...ition A This is the full rear position The suggested use for this position is a follows Figure 21 Use for short light grass mowing conditions Use in dry conditions For smaller grass clippings Propels grass clippings farther away from the mower Figure 21 Position B Use this position when bagging Figure 22 Position C This is the full open position The suggested use for this position is as follows Us...

Страница 25: ...ust move the lever sideways to unlock seat Figure 25 Figure 25 1 Seat suspension knob 2 Seat position adjustment lever 2 Slide the seat to the desired position and release lever to lock in position Changing the Seat Suspension The seat can be adjusted to provide a smooth and comfortable ride Position the seat where you are most comfortable To adjust it turn the knob in front either direction to pr...

Страница 26: ... levers to neutral locked position and apply parking brake Remove the key 2 Rotate the by pass valves counterclockwise 1 turn to push This allows hydraulic ﬂuid to by pass the pump enabling the wheels to turn Figure 28 Important Do not rotate by pass valves more than 1 turn This prevents valves from coming out of the body and causing ﬂuid to run out Figure 28 1 By pass valve 2 Hydraulic tank 3 Dis...

Страница 27: ... chains cable or ropes Important Do not use the motion control levers as anchors for tieing the machine down Secure a trailer to the towing vehicle with safety chains Driving on the street or roadway without turn signals lights reﬂective markings or a slow moving vehicle emblem is dangerous and can lead to accidents causing personal injury Do not drive machine on a public street or roadway Loading...

Страница 28: ...ll width ramp 4 Full width ramp side view Using the Z Stand The Z Stand raises the front end of the machine to allow you to clean the mower and remove the blades The machine could fall onto someone and cause serious injury or death Use extreme caution when operating the machine on the Z Stand Use only for cleaning the mower and removing the blades Do not keep the machine on the Z Stand for extende...

Страница 29: ...on 3 Start the engine and place it at half throttle Disengage the parking brake 4 Slowly drive backwards off of the stand 5 Return the stand to its rest position Figure 30 Operating Tips Fast Throttle Setting For best mowing and maximum air circulation operate the engine at the fast throttle position Air is required to thoroughly cut grass clippings so do not set the height of cut so low as to tot...

Страница 30: ...ly longer than normal or if it contains a high degree of moisture raise the cutting height higher than usual and cut the grass at this setting Then cut the grass again using the lower normal setting When Stopping If the machine s forward motion must be stopped while mowing a clump of grass clippings may drop onto your lawn To avoid this move onto a previously cut area with the blades engaged Keep ...

Страница 31: ...rs Lubricate the machine with light oil Every 200 hours Change the engine oil lter Replace the fuel lter Grease the brake pivot and lever Every 250 hours Replace the primary air lter more often in duty or sandy conditions Every 500 hours Check the wheel hub slotted nut Adjust the caster pivot bearing Every 600 hours Replace the safety air lter more often in duty or sandy conditions Yearly Grease t...

Страница 32: ... is done Refer to Adjusting the Caster Pivot Bearing in Drive System Maintenance page 40 2 Remove the hex plug Thread a grease zerk into the hole 3 Pump grease into the zerk until it oozes out around the top bearing 4 Remove the grease zerk in the hole Install the hex plug and cap Where to Add Grease Lubricate the grease ﬁttings as shown on the Check Service Reference Aid decal Figure 33 Figure 33...

Страница 33: ...5 Avoid knocking the ﬁlter into the side of the body 6 Remove the safety ﬁlter only if you intend to replace it Never attempt to clean the safety ﬁlter If the safety ﬁlter is dirty then the primary ﬁlter is damaged and you should replace both ﬁlters 7 Inspect the primary ﬁlter for damage by looking into the ﬁlter while shining a bright light on the outside of the ﬁlter Holes in the ﬁlter will appe...

Страница 34: ... dipstick Figure 37 so dirt cannot fall into engine Figure 37 1 Dipstick end 3 Filler cap 2 Dipstick 4 Pull the oil dipstick and wipe the metal end clean Figure 37 5 Slide the oil dipstick fully into the engine Pull the dipstick out and look at the metal end Figure 37 If oil level is low slowly pour only enough oil into the ﬁller tube to raise the level to the full mark Important Do not overﬁll th...

Страница 35: ...new oil of the proper type into the center hole in the new oil ﬁlter Stop pouring when the oil reaches the bottom of the threads Allow a minute or two for the oil to be absorbed by ﬁlter material 4 Apply a thin coat of new oil to the rubber gasket on the replacement ﬁlter Figure 40 5 Install the replacement oil ﬁlter to the ﬁlter adapter Turn the oil ﬁlter clockwise until the rubber gasket contact...

Страница 36: ...r cleaner is dirty 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 Figure 42 1 Canter electrode insulator 3 Air gap not to scale 2 Side electrode 2 Check the gap between the center and side electrodes Figure 42 Bend the side electrode Figure 42 if the gap is not correct Installing the Spark Plug 1 Install the ...

Страница 37: ...e and remove the key 3 Close the fuel shutoff valve Figure 43 4 Loosen the hose clamp at the fuel ﬁlter and slide it up the fuel line away from the fuel ﬁlter Figure 43 5 Disconnect the fuel line from the fuel ﬁlter Figure 43 6 Open the fuel shutoff valve Note Allow gasoline to drain into a fuel container can or drain pan Figure 43 Note Now is the best time to install a new fuel ﬁlter because the ...

Страница 38: ...ving the operating position 3 Unlatch the seat and tilt the seat up 4 First disconnect the negative battery cable and ground wire from the negative battery terminal Figure 44 5 Slide the red terminal boot off the positive red battery terminal Then remove the positive red battery cable Figure 44 Figure 44 1 Battery 7 Washer 1 4 inch 2 Terminal boot 8 Locknut 1 4 inch 3 Positive battery cable 9 Batt...

Страница 39: ...disconnect the charger leads from the battery posts Fig 67 Figure 45 4 Install the battery in the machine and connect the battery cables refer to Installing the Battery Note Do not run the machine with the battery disconnected electrical damage may occur Servicing the Fuses The electrical system is protected by fuses It requires no maintenance however if a fuse blows check component circuit for ma...

Страница 40: ... 47 1 Pump rod 3 Tracking knob 2 Turn this way to track left 4 Turn this way to track right 5 Repeat this adjustment until the tracking is correct Checking the Tire Pressure Check the pressure at the valve stem after every 50 operating hours or monthly whichever occurs ﬁrst Figure 48 Maintain the air pressure in the rear tires at 13 psi 90 kPa Uneven tire pressure can cause uneven cut Check the ti...

Страница 41: ...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 Remove the dust cap from caster and tighten lock nut Figure 50 Figure 50 1 Spring Washers 3 Dust Cap 2 Lock Nut 4 Tighten the locknut until the spring washers are ﬂat and then back off a 1 4 turn to properl...

Страница 42: ... is necessary loosen the jam nut below the spring and tighten the nut directly below the yoke Figure 53 Turn the nut until the correct measurement is obtained Tighten the two nuts together and repeat on opposite side of unit 4 Turn nuts clockwise to shorten spring length and turn counter clockwise to lengthen the spring 5 Engage parking brake lever up 6 Measure the distance between the trunnion ro...

Страница 43: ... and remove the belt Figure 54 7 Install the new mower belt around the mower spindle pulleys mower idler pulley into the belt guides into rear idler arm assembly and the clutch Figure 54 8 Install the belt guide with a washer and nut onto the rear leftside pulley Note Check the amount of twist in the belt between the pulleys Ensure it is only what is speciﬁed in Figure 54 Figure 54 1 Clutch 6 Mowe...

Страница 44: ...he tension Figure 57 7 To increase belt tension rotate the ratchet or breaker bar to move the ﬁxed idler until you feel increased resistance and the spring loaded idler pulley stops moving Figure 57 Note Do not increase the belt tension beyond the point where the ﬁxed idler arm stops 8 While holding the belt tension tighten the idler plate bolts that secure the idler plate Figure 57 Figure 57 1 Mo...

Страница 45: ...h lever spring and rod separately Note Motion control levers must be installed correctly See Installing the Motion Control Levers in the set up instructions 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 Unlatch the seat and til...

Страница 46: ...c motor oil or equivalent synthetic oil Important Use oil speciﬁed or equivalent Other ﬂuids could cause system damage Hydraulic System Oil Capacity 67 oz 2 0 l Note There are two ways of checking the hydraulic oil One is when the oil is warm and one is when the oil is cold The bafﬂe inside the tank has two levels depending if the oil is warm or cold 1 Position the machine on a level surface and s...

Страница 47: ...e engine remove the key and wait for all moving parts to stop before leaving the operating position Important Do not substitute automotive oil ﬁlter or severe hydraulic system damage may result 3 Place drain pan under ﬁlter remove the old ﬁlter and wipe the ﬁlter adapter gasket surface clean Figure 64 Figure 64 1 Hydraulic lter 4 Apply a thin coat hydro ﬂuid to the rubber gasket on the replacement...

Страница 48: ...ate 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 result if this is not done Keep body and hands away from pin hole leaks or nozzles that eject high pressure hydraulic ﬂuid Use cardboard or paper to ﬁnd hydraulic leaks Safely relieve all pressure in the hydraulic system b...

Страница 49: ...Move the motion control lever forward and reverse then back to neutral The wheel must stop turning or slightly creep in reverse 4 Open the throttle to fast Make sure wheel remains stopped or slightly creeps in reverse adjust if necessary Setting the Left hand Hydraulic Pump Neutral Position 1 Loosen the locknuts at the ball joints on the pump control rod Figure 67 Figure 67 1 Ball joint 4 Double n...

Страница 50: ...f needed adjust to 13 psi 90 kPa 5 Lower the mower to the 3 inch 76 mm height of cut position 6 Inspect the four chains The chains need to have tension Note Adjust the rear chains to the top of the slot where they are attached to the mower If one rear chain is loose lower loosen the front support arm on the same side Refer to Adjusting the Front to Rear Mower Pitch If one front chain is loose rais...

Страница 51: ...o the cutting edge of the blade tip Figure 70 3 Record this measurement 4 Measure the right blade at the B location from a level surface to the cutting edge of the blade tip Figure 70 5 Record this measurement 6 The mower blade should be a 1 4 to 3 8 inch 6 to 10 mm lower at position A than at position B Figure 70 If it is not correct proceed to the following steps Note Both of the front swivels n...

Страница 52: ...eason 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 Toro replace...

Страница 53: ...mm If this dimension exceeds 1 8 inch 3 mm the blade is bent and must be replaced refer to Removing the Blades and Installing the Blades 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 Removing the Blades Blades must be rep...

Страница 54: ...tting 2 Install the spring disk and blade bolt The spring disk cone must be installed toward the bolt head Figure 76 Figure 76 1 Sail Area of Blade 4 Blade Bolt 2 Blade 5 Cone Towards Bolt Head 3 Spring Disk 3 Torque the blade bolt to 85 110 ft lb 115 150 N m Replacing the Grass De ector An uncovered discharge opening could allow the lawn mower to throw objects in the operator s or bystander s dir...

Страница 55: ... Cleaning Cleaning Under the Mower Remove the grass buildup under the mower daily 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 Raise the mower to the transport position Waste Disposal Engine oil batteries hydraulic oil and eng...

Страница 56: ...11 Prepare the machine for storage when non use occurs over 30 days Prepare machine for storage as follows A Add a petroleum based stabilizer conditioner to fuel in the tank Follow mixing instructions from stabilizer manufacture Do not use an alcohol based stabilizer ethanol or methanol Note A fuel stabilizer conditioner is most effective when mixed with fresh gasoline and used at all times B Run ...

Страница 57: ...ails to keep running 4 Dirt water or stale fuel is in the fuel system 4 Contact an Authorized Service Dealer 1 Engine load is excessive 1 Reduce the ground speed 2 Air cleaner is dirty 2 Clean the air cleaner element 3 Oil level in the crankcase is low 3 Add oil to the crankcase 4 Cooling ns and air passages above the engine are plugged 4 Remove the obstruction from the cooling ns and air passages...

Страница 58: ...unting bolts are loose 3 Tighten the engine mounting bolts 4 Loose engine pulley idler pulley or blade pulley 4 Tighten the appropriate pulley 5 Engine pulley is damaged 5 Contact an Authorized Service Dealer 6 Blade spindle is bent 6 Contact an Authorized Service Dealer Abnormal vibration 7 Motor mount is loose or worn 7 Contact an Authorized Service Dealer 1 Blade s not sharp 1 Sharpen the blade...

Страница 59: ...drive belt and check adjusting shafts and belt guides for correct position 3 Deck belt is worn loose or broken 3 Install new deck belt 4 Deck belt is off pulley 4 Install deck pulley and check the idler pulley idler arm and spring for correct position and function Blades do not rotate 5 Broken or missing idler spring 5 Replace the spring 59 ...

Страница 60: ...Schematics Wire Diagram Rev A 60 ...

Страница 61: ......

Страница 62: ......

Страница 63: ...cheduled for replacement as required maintenance in the written instructions must be warranted for the warranty period of two years If any such part fails during the period of warranty coverage it must be repaired or replaced by The Toro Company Any such part repaired or replaced under the warranty must be warranted for a time not less than the remaining warranty period B Any warranted part that i...

Страница 64: ... maintenance service or parts such as lters fuel lubricants tune up parts blade sharpening brake and clutch adjustments Any product or part which has been altered or misused or required replacement or repair due to normal wear accidents or lack of proper maintenance Repairs necessary due to improper fuel contaminants in the fuel system or failure to properly prepare the fuel system prior to any pe...

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