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Safety • Assembly • Operation • Tips &Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty

OF A O AL

22" Rotary Mower- Model Series 520

iMPORTANT

READ SAFETY RULES AND iNSTRUCTiONS CAREFULLY BEFORE OPERATION

Warning: Thisunit is equippedwithan internalcombustionengineandshouldnot beusedon or nearany unimprovedforest-covered,brush-

coveredor grass-coveredlandunlesstheengine'sexhaustsystemis equippedwitha sparkarrestermeetingapplicablelocalor statelaws(if any).

If a sparkarresteris used,it shouldbemaintainedineffectiveworkingorderby the operator.In theStateof Californiathe aboveis requiredbylaw

(Section4442of the CaliforniaPublicResourcesCode).Otherstatesmayhavesimilarlaws.Federallawsapplyonfederallands.A sparkarrester

for the muffleris availablethroughyour nearestengineauthorizedservicedealeror contactthe servicedepartment,RO.Box361131Cleveland,

Ohio44136-0019.

PRINTEDIN U.S.A.

MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019

FORMNO.770-10349G

12/16/2005

Summary of content (16 pages)

PAGE 1
Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty A OF O AL _X \ X ,k 22" Rotary Mower- Model Series 520 iMPORTANT READ SAFETY RULES AND iNSTRUCTiONS CAREFULLY BEFORE OPERATION Warning: This unit is equippedwithan internalcombustionengineand shouldnot be usedon or nearany unimprovedforest-covered,brushcoveredor grass-coveredland unlesstheengine'sexhaustsystemis equippedwith a sparkarrestermeetingapplicablelocalor statelaws(if any).
PAGE 2
This Operator's Manual is an important part of your new lawn mower, it will help you assemble, prepare and maintain the unit for best performance. Please read and understand what it says. Table of Contents Slope Gauge ....................................................... Safe Operation Practices ................................... Setup and Adjustment ....................................... Operating Your Lawn Mower .............................. 3 4 6 8 Maintaining Your Lawn Mower ....................
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O Sight and hold this levelwith a vertical tree... o 1= o >:.
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WARNING: Engine Exhaust, some of its constituents, and certain vehicle components contain or emit chemicals known to State of Californiato cause cancer and birth defects or other reproductiveharm. DANGER: This machine was built to be operated according to the rules for safe operation in this manual. As with any type of power equipment, carelessness or error on the part of the operator can result in serious injury. This machine is capable of amputating hands and feet and throwing objects.
PAGE 5
The cuttingbladecontinuesto rotatefor a fewseconds after the engine is shut off. Neverplaceany part of the bodyin the bladearea untilyou are surethe blade hasstopped rotating. 7. Extinguishall cigarettes,cigars, pipesand othersources of ignition. 8. Neverfuel machineindoorsbecauseflammablevapors will accumulatein the area. 20. Neveroperate mowerwithoutpropertrailshield, discharge cover,grass catcher,bladecontrol handle,or othersafety protectivedevices in placeand working.
PAGE 6
For shippingpurposes,the chutedeflectoron your moweris held in an uprightpositionbya retainer. Removethe retaineras follows: a. Push chutedeflectorup towardsengine.Holding deflectorin this position,removethe retainerand discard.See Step 1. b. Lowerthe chute deflectorcarefullykeepingyour fingersout of the way. _iiiii_ii_il_I_iii_ii_ i_ _ __ i ,_ . must be removed and discarded WARNING: The chute retainer before operating the mower. Performthe followingsequencefor handlesetup: a.
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5. Ropeguide Setupas followsin Step5: a. Holdthe bladecontrol againsttheupper handle. b. Slowlypull starterrope out of engine. c. Slip starterrope intothe rope guide.Tightenrope guidewing nut. 6. If notalreadyon the unit, install rearwheelsas follows in Step6: a. Placerear of the mowerdeck on raisedblocks. b. Removelock nutfrom pivot armassembly(on selectmodels,these maybe includedseparately in a plasticbag). c. Slide wheel,with hollowside in, ontopivot arm and securewith lock nut. d.
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Know Your Lawn Mower Control DriveControl Recoil Oil Fill/Dipstick WARNING The blade control mechanism is a GasolineFiii HeightAdjustment Levers safety device. Never attempt to bypass its operations. I Use extreme care when handling gasoline. Gasoline is extremely flammable and the vapors are explosive. Never fuel the machine indoors or while the engine is hot or running. Extinguish cigarettes, cigars, pipes and other sources of ignition. Keep hands and feet away from the chute area on cutting deck.
PAGE 9
/i_k Starting mowercan result in foreign objects WARNING:The operationof any lawn being thrownintothe eyes,whichcan damageyoureyes severely.Always wear safetyglasseswhileoperating the mower,or while performing any adjustmentsor repairson it. if Engine Mower WARNING:Be sure no one otherthan ,__ the operatoris standingnearor the lawn mower whilestartingengine operatr ingmower.Neverrun engineindoors or in enclosed,poorly ventilatedareas. Engine exhaustcontainscarbon monoxide,an odorlessand deadly gas.
PAGE 10
Lubrication 1. Lubricatepivot pointson theblade controland drive controlat least oncea seasonwith lightoil. These controlsmustoperatefreely in bothdirections.See Figure3. 2. Lubricatethe wheelsat least oncea seasonwith lightoil (or motoroil). If wheelsare removedfor any reason,lubricatesurfaceof the pivotarm and inner surfaceof thewheelwith light oil. See Figure3. 3. Lubricatethe torsionspringand pivot pointon each end of the side mulchingplug/chute deflectorperiodically with lightoil to preventrust.
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Blade Care __lk bladefor sharpeningor replacement, ARNING:Whenremovingcutting protectyourhandswith a pairof heavy gloves or use a heavy rag to hold blade. Maintaining 1. Disconnectsparkplug wirefrom spark plug.Turn moweron its side makingsurethat the air filter and the carburetorare up. 2. Removebolt, blade bell support,blade,and blade adapterfrom the enginecrankshaft.See Figure4. 3. The bladecan be sharpenedwith a fileor on a grinding wheel.
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Problem Cause Engine fails to start I ii 3. 4. 5. 6. Engine overheats I I I Occasional skips (hesitates) at high speed !iiiiiLi i Iiiiii 1. Engineoil levellow. 1. Fillcrankcasewith proper oil 2. Air flow restricted. 2. Removeblowerhousing and clean. 3. Referto engne manua. 3. Carburetornot adjustedpropery. I 1. Sparkplug gap too close. 1. Adjust gapto .030". 2. Carburetoridlemixtureadjustment 2. Referto engine manual. I 1 Sparkplug fouled, faulty or gap too wide. I 2.
PAGE 13
Off-Season Storage The followingstepsshouldbe taken to prepareyour lawn mowerfor storage. 1. Cleanand lubricatemowerthoroughlyas describedin the lubricationinstructions. 2. We do not recommendthe useof a pressurewasher or gardenhoseto cleanyour unit. 3. Referto enginemanualfor correctengine storageinstructions. 4. Coat mower'scuttingblade with chassisgreaseto preventrusting. 5. Storemowerin a dry, cleanarea. Donot storenext to corrosivematerials,suchas fertilizer.
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iVlodel Series 520 J_ q_ \ i % _22_ \ 14
PAGE 15
1. 747-1214 DriveControl Handle 36. 782-0584 ForwardHght.Adj.Plate- RH 2. 747-1161A BladeControlHandle 37. 741-0710 SIv.Bearing,.502x.627x 1.00 3. 746-1132 BladeControlCable- 40.75" 38. 710-0216 Hex Cap Screw3/8-16x.75 4. 746-04204 DriveControlCable 39. 720-0426 AdjustmentKnob 5. 749-1092A UpperHandle 40. 748-0455 BearingSupport 6. 710-1205 EyeBolt 41. 731-04643 WheelDustCover 7. 720-0279 WingNut 1/4-20 42. 715-0221 Pin 8. 732-1026 SpringLever 43.
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MANUFACTURER'S LiMiTED WARRANTY The limitedwarrantyset forth belowisgivenby MTDLLCwith respect to newmerchandisepurchasedand usedin the UnitedStates,its possessionsand territories. "MTD"warrantsthis productagainstdefectsin materialand workmanshipfor a periodof two (2) years commencingon the date of original purchaseand will, at its option,repairor replace,freeof charge,any part foundto be defectiveinmaterialsor workmanship.