Toro LAWN-BOY Series, Manual

Page 1: ...MANUAL ...

Page 2: ... your Distributor Service Manager or us directly at the following address The Toro Company Consumer Service Department 8111 Lyndale Avenue South Bloomington MN 55420 1196 The Toro Company reserves the right to change product specifications or this manual without notice Copyright All Rights Reserved The Toro Company 2002 Bloomington MN 55420 1149 U S A ...

Page 3: ... Blade 3 3 Checking and Adjusting the Blade Level Overview 4 1 Walk Behind Mower Overview 4 1 Riding Mower Overview 4 2 Checking Blade Level All Mowers 4 2 Preparing the Workspace 4 2 Measuring Blade Level 4 3 Checking and Adjusting Blade Tracking 4 4 Walk Behind Mowers 4 4 Riding Mowers 4 4 Adjusting Blade Level 4 4 Walk Behind Mowers 4 4 Specifications and Tolerances 4 4 Adjusting Height of Cut ...

Page 4: ...vel All Cutting Units 4 10 Adjusting Front to Rear Pitch 4 11 32 inch 81 3cm Cutting Unit 4 11 38 inch 96 5cm Cutting Unit 4 12 44 inch 111 7cm Cutting Unit 4 13 Adjusting Blade Tracking 4 14 32 inch 81 3cm Cutting Unit 4 14 38 and 44 inch 96 5 and 111 7cm Cutting Units 4 15 260 Series Tractor 4 16 38 inch 96 5cm Mower 4 16 Adjusting Side to Side Level 4 16 Adjusting Front to Rear Pitch 4 17 42 48...

Page 5: ...c Quality of Cut Problems and Possible Solutions 5 1 Blowout 5 1 Clumping 5 1 Clogged Chute Bagging or Side Discharging Only 5 2 Dribbling 5 2 Ragged Cut 5 2 Scalping 5 2 Stair Step or Sawtooth Cut 5 2 Stragglers 5 2 Streaking 5 2 Uncut Grass 5 3 Windrow 5 3 Kits to Improve Quality of Cut Toro Recycler Mulch Plug 6 1 Washout Port Kit P N 95 3282 6 1 Cast Deck Height of Cut Notch Repair Kits 6 1 An...

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Page 7: ...Improve Quafity of Cut This section describes kits designed to address specific quality of cut problems on certain Toro and Lawn Boy brand rotary mowers Appendices This section contains a glossary of quality of cut terms and a list of special tools used in addressing quality of cut problems It also contains a Mower Quality of Cut Checklist for use when troubleshooting quality of cut problems Conte...

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Page 9: ...hange in operating the mower Initial customer education is critical in preventing this situation If this situation arises after the customer has taken delivery of the mower a visit to the customer s lawn for demonstration of the problem and the suggested solution may be necessary Figure 2 5300 010 TIF Setup On all mowers proper mower setup consists of doing the following and making any necessary a...

Page 10: ...tify the machine s safety features and explain how they work and how to use them Remind the operator that safety instructions are in the operator s manual Demonstrate for the operator the sound of the engine operating under a normal load and then operating in an overloaded condition in which it is starting to bog down Show the operator how to clean clippings out of the cutting chamber Explain that...

Page 11: ...ries with the type of grass and the season In the spring and fall when temperatures are moderate and rainfall is higher height of cut can usually be decreased In the summer when the temperature increases and rainfall decreases it is usually better to increase the height of cut To maintain the health of the grass turf grass agronomists recommend cutting no more than 1 3 of the grass height Most rot...

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Page 13: ...isconnect the wire from the spark plug 3 Walk behind mowers Drain the fuel and oil from the engine Tip the mower on its side air filter up Riding mowers Remove the mower attachment or raise and block the tractor to allow access to the underside of the mower Loosen the blade fastener s The blade fasteners differ from mower to mower Some mowers use a bolt and a lock washer some use a bolt or a nut w...

Page 14: ...ure 6 B 2 r I m_4788 Figure 6 sharpen TIF Sharpen at this angle 2 Maintain the original only radius here Balancing the Blade Check the balance of the blade by placing the center hole of the blade over a nail or a screwdriver shank clamped horizontally in a vise Figure 7 A worn or damaged blade can break and a piece of the blade could be thrown into the operator s or bystander s area resulting in s...

Page 15: ...rque Guide for Lawn Boy Toro and Toro Wheel Horse Mowers built in 2002 Model Lawn Boy 21 inch walk behind 47 63 mowers Toro 21 inch and 22 inch walk 50 68 behind mowers with split washer on blade bolt Toro 21 inch and 22 inch walk behind mowers with 60 82 domed or flat washer on blade bolt Toro Wheel Horse 25 inch 32 inch 38 inch 45 60 61 81 44 inch mowers Toro Wheel Horse 36 inch 42 inch 48 inch ...

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Page 17: ...l Mowers Checking and Adjusting Blade Tracking Walk Behind Mowers Adjusting Blade Level Walk Behind Mowers Models with Height of Cut Lever on Each Wheel Models with Single Height of Cut Adjustment Lever If you have a riding mower see the following subsections for blade level adjustment procedures Riding Mower Overview Checking Blade Level All Mowers Adjusting Blade Level Riding Mowers and subsecti...

Page 18: ... a tolerance of less than 3 16 inch 5mm Figure 13 A small dip in a concrete floor may cause you hours of work trying to find a problem that isn t there Riding Mower Overview Each series of riding mower has it s own method of suspending the mower assembly For checking and adjusting the blade tracking height of cut side to side level and front to rear pitch on a given riding mower see the subsection...

Page 19: ... in your measurements Each blade must be measured at the 12 3 6 and 9 o clock positions Figure 14 and Figure 15 If the desired height of cut is known make your measurements at this setting If this is not known set the mower in the middle of its height of cut HOC range VERY IMPORTANT When you take the measurements rotate the blade and use the SAME blade tip for measuring Mark the blade with a piece...

Page 20: ...can generally be checked visually Use one blade tip turning it one rotation It should stay close to the same level all the way around a minimum of approximately 1 8 inch 3 1 mm above the bottom edge Figure 18 of the mower housing Housings with cut outs are more difficult to check Verify all other measurements when checking these mowers If there is a large difference in the measurement from one are...

Page 21: ...ight of cut on these models On cast deck models this notch is molded in the deck Figure 19 On steel decks a steel height of cut plate serves this purpose Figure 20 Figure 19 0185 12 TIF Figure 20 2768 0011 TIF Slippinq Heiqht of Cut Adjuster If the spring arm will not maintain height of cut it has lost spring tension and must be replaced When the height of cut spring arm is weak and has slipped a ...

Page 22: ... wheel and pivot verify that the blade is level side to side Adiustinq Side to Side Level If the blade is not level within 1 8 inch 3 1mm side to side the engine will need to be shimmed Loosen the engine mounting screws on the low side of the blade Slip a washer or other shim material between the engine and housing Figure 24 On a 21 inch mower use a shim about half as thick as the distance to be s...

Page 23: ... and replacing the bent axle An alternate fix would be to shim the affected axle Turn the machine over The front axle is attached to the mower with a bracket on each side In this case go to the side where the front wheel does not touch the ground Remove the cap screws that secure the bracket to the mower housing Insert the shim between the cap and housing and install the cap screws Figure 26 Figur...

Page 24: ...install through the housing shim and spindle Note that the blade tip will move more than the thickness of the shim Figure 29 1222 01 TIF Adjusting Side to Side Level If the mower is more than 1 8 inch 3 1 mm off side to side correction is recommended Since this is not a normal adjustment there is a possibility the deck suspension is badly worn or bent Replace the parts as necessary Adjusting Front...

Page 25: ...ne Rider has been offered with three cutting units A 32 inch 81 3cm single blade a 38 inch 96 5cm twin blade and a 44 inch 111 7cm three blade mowing deck Figure 34 Side to side adjustment procedures are the same for all three mowing decks However the front to rear pitch varies between the three On the cutting units with multiple blades the blades must line up with each other in the same cutting p...

Page 26: ...side to side 3 Measure here 2 Outside cutting edges If there is more than a 3 16 inch 4 5mm difference side to side adjustment is necessary Remove the hairpin cotter and washer from the leveling bracket Figure 38 To level the blade s reposition the leveling bracket s in a different hole and install the washer and hairpin cotter Moving to a hole nearer the front lowers the blade height Moving to a ...

Page 27: ...ot change Adjust the front to rear pitch by rotating the special pitch adjusting nuts on both sides of the mower pivot mount Figure 41 2 Figure 39 XL32pit1 TIF 1 Measure front center 2 Measure rear center Verify that the side to side level is correct If not adjust that first Measure the length of the rod extending out of the front of the adjusting block on the sides of the chassis Figure 40 If the...

Page 28: ...the front to rear pitch is within specification recheck the side to side adjustment see Adjusting Side to Side Level All Cutting Units on page 4 10 Once the front to rear pitch and side to side level are within specification continue by checking and adjusting the blade tracking see Adjusting Blade Tracking on page 4 14 38 inch 96 5cm Cuttinq Unit The blade pitch for a 38 inch 96 5cm mower is corre...

Page 29: ...ification continue by checking and adjusting the blade tracking see Adjusting Blade Tracking on page 4 14 44 inch 111 7cm Cuttinq Unit 1 Check side to side level and adjust as needed see Adjusting Side to Side LeveliAII Cutting Units on page 4 10 Measure the length of the rod extending out the front of the adjusting block on the sides of the chassis Figure 45 If the rod length is not 5 8 inch 15 8...

Page 30: ...nt to rear pitch and side to side level are within specification continue by checking and adjusting the blade tracking as follows Adjusting Blade Tracking The 32 inch 81 3cm cutting unit requires a blade tracking adjustment procedure different from the procedure required for the 38 inch 96 5cm and the 44 inch 111 7cm cutting units Use the procedure as follows appropriate to the cutting unit on whi...

Page 31: ...lades at a time on three blade mowers then run a string across the cutting tips of the blades The string should be straight If it is not the blade or spindle could be bent If the saddles or blades do not line up and the spindles are not bent a shim between the spindle housing and the mower housing may help align them Loosen the spindle to mower housing bolts and insert shim washers until the saddl...

Page 32: ...ble in two ways One for higher heights of cut where the mower is suspended from the chassis and the other for lower positions where the level and height of cut are determined by the rear gage wheels In the 3 4 inch 7 6 10 1cm range the mower is suspended from the chassis The two outside blade tips should be an equal height from the ground within 3 16 inch 4 76mm tf not an adjustment is required 1 ...

Page 33: ...2 inch 106 6 121 9 132 0cm Mowers The side to level and front to rear pitch adjustments for all these models are the same However as you raise the cutting height the point at which the rear gage wheels comes off the ground is different for the 52 inch 132 0cm mower There is an adjustment process when the mower is suspended However if the gage wheels are on the ground there is no side to side adjus...

Page 34: ...nch 106 6cm mower comes with one adjustable link standard although someone could have installed a second one The 48 inch and 52 inch 121 9cm and 132 0cm models have two adjustable links Figure 57 2 rn 3187 Figure 57 260XXF2R TIF 1 Adjustable Hnk 3 Bolt 2 Jam nut Rotate the bolt on front adjustable link s to change the blade pitch To raise the front of the mower shorten the adjustable link by turni...

Page 35: ...s do not line up and the spindles are not bent a shim between the spindle housing and the mower housing may help align them Loosen the spindle to mower housing bolts and insert shim washers until the saddles are in line Then if you used washers to shim the spindle housing remove the bolt and reassemble through the washer to secure it Figure 60 1380 09 TIF Adjusting Side to Side Level If the mower ...

Page 36: ...the spindle housing washer and mower housing to secure the shim Figure 64 0757 01 2 TIF Adjusting Side to Side Level All mower attachments for the 5xi series tractors should be level side to side within about 3 16 inch 4 76mm However the adjustment point for the 60 inch 152 4cm mower is different than the other models 44 48 52 inch 111 7 121 9 132 0cm Mowers Equalize side to side cut by adjusting ...

Page 37: ...Transport Blade Pitch Because the attachment lift is used when the PTO drive is engaged blade pitch in transport must be adjusted to extend PTO drive belt life This adjustment also provides for adequate transport height In the transport position the blade tip should be about 1 4 inch 6 3mm lower in front than in the rear If adjustment is necessary proceed as follows 1 Start the tractor lower the a...

Page 38: ...ld be level side to side within 3 16 inch 4 76mm If adjustment is necessary proceed as follows Remove the hairpin cotter and washer from the leveling bracket Figure 72 To level the blades reposition the leveling bracket in a different hole and install the washer and hairpin cotter A front hole lowers the blade height and a rear hole raises its height Adjust both sides as required Figure 70 altbltr...

Page 39: ...to be a minimum of 1 8 inch up from the bottom edge of the housing but they must also line up where the tips come together Take the two blade tips and point them towards each other They must be within 1 8 3 16 inch of level with each other or both must be the same distance from the blade to the ground Figure 74 I kd _ _ kd I 1 I I 1 I 1 Measure here Figure 74 trcleveI TIF An alternate way to check...

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Page 41: ...han a full width cut 6 Check for grass build up in cutting chamber Raise the height of cut and cut the lawn Come back a day or two later and re cut to the preferred height Check for a sharp blade Sharpen as instructed in the Operator s Manual Check for belt slippage on mowers using a belt in the blade drive system Toro BBC Riding Mowers and Wide Area Mowers Keep the right discharge side of the mow...

Page 42: ...he ground Centrifugal force will apply in direct relation to the speed Stair Step or Sawtooth Cut Check mower for level side to side On multi blade mowers verify all blades are at the same height Stragglers Check the blade pitch See the Operator s Manual or the section Checking and Adjusting the Blade Level of this manual for adjustment instructions If the mower is equipped with an accelerator or ...

Page 43: ...ade decks what is described as a streak can result from two of the blades not being aligned and therefore cutting at two different heights this is actually a stair step cut On multiple blade mowers the blade tips should be in line within 1 8 inch See the operator s manual or the section Checking and Adjusting the Blade Level of this manual for instructions on checking and repairing this problem Un...

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Page 45: ...3 Figure 76 washout TIF 1 Washout fitting 3 Hose 2 Coupling If the underside of the deck is not cleaned after mowing the accumulated grass can dry out and bond to the deck Once this happens the hard material must be scraped from under the deck This often removes the protective paint from under the deck With a washout port kit it is easy to hook up a garden hose and clean the cutting chamber after ...

Page 46: ...deck level when a vac bagger attachment is used Standard on 1997 and later vac baggers Baffle Kits Baffle kits are available for some mowers These are designed to help reduce the tendency to blow leaves and dry grass out the front of the mower If a mower has Recycler baffles and kickers try to resolve the blowout problem by removing these prior to purchasing and installing a baffle kit Baffle kits...

Page 47: ...ching mowers The accelerator creates air turbulence and helps evacuate clippings from the cutting chamber The accelerator also provides support to the middle of the blade antisclp TIF Bagging chute the duct or chute that directs airflow and grass clippings into the bag on a bagging mower Bagging mower a type of mower that collects the grass clippings in a hopper or bag mvc 401x jpg Airflow is the ...

Page 48: ...otating at 3 000 RPM Ground Speed Blade Passes Clips per Foot Clips per Inch Ground Speed MPH Forward Forward 1 68 18 5 68 2 34 09 2 84 3 22 72 1 89 Clumping wet grass iwhen the clippings come out of the mower in bunches or piles If the clippings are stuck together moisture is usually the cause The moisture source can be either external rain or dew or internal dry ambient conditions but very lush ...

Page 49: ...he cutting edge of the mower blade these should be the same Leveling the process of adjusting the mowing deck so that the blade is correctly positioned relative to the ground See the instructions for the particular mower for the correct ad ustment method and measurements Lush grass grass with a high water content This is common in most areas during spring rains or on a lawn that is watered heavily...

Page 50: ...ch Recycler Toro s patented mulching system Rough terrain terrain uneven enough to affect the quality of cut by causing the mower to bounce excessively terrain TIF Scalping when the blade cuts the grass at ground level or actually strikes the ground and removes earth III i liii scalp TIF Semi floating deck a type of mower that is partially supported by the chassis but also has wheels on the ground...

Page 51: ...at is so long that it makes it hard to follow the 1 3 rule Generally this is grass 6 or more inches tall Thatch the tough fibrous part of the plant similar to a root that is above ground but growing laterally rather than up sometimes combined with grass clippings that have not decomposed Some types of grass create little thatch others need the thatch to be removed periodically thinthik TIF Tire tr...

Page 52: ...the touch Rain watering or morning dew can be the source of the moisture Windrow poor disbursement of clippings resulting in a nearly continuous line of cut grass clippings on the grass This may also appear as clumps of dry grass generally in a row across the lawn windrow TIF 1 3 Rule a recommendation by turf grass agronomists that not more than 1 3 of the height of the grass be removed at one tim...

Page 53: ...ith one smooth side is adequate for most mowers MVC 732X jpg An alternate height of cut tool can be created in the shop A wooden dowel that can be placed perpendicular to the floor can be used The dowel needs to be taller than the height of cut to be measured but not so tall as to hit the top inside of the mower deck Wrap any kind of tape around one end and down far enough to reach the blade Reach...

Page 54: ...an be hinged in the middle This also allows storage in a smaller area To use the board cut a path with the mower being checked Place the board across the path and brush the grass with your hand Now stand back from the board and look at the grass against the reference line You will be able to see any uncut strips out of level or other quality of cut issues MVC 714X jpg Mower Quality of Cut Checklis...

Page 55: ...H Bagging system clean air exhausts open impeller drive in working order I Mower level front to rear Most tractors 1 8 inch low in front 32 inch mowers 20 inch and 21 inch walk behind mowers approximately 3 8 inch low in front 5 Observations from watching customer operating mower if possible Yes No 6 Check A Engine being run at full throttle B Cutting height of mower C Measured height of grass D M...

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Page 57: ...QUALITY OF CUT MANUAL Form No 492 4763 ...