Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty A O 21" Rotary Mower- A AL Model Series 410 thru 420 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).
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 .............................. Maintaining Your Lawn Mower .........................
!i!_i!il < Sight and hold this levelwith a vertical tree... _ z_ I I d_ o9 or a corner of a building...
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 powerequipment, 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.
19.Shutthe engine off and waituntil the bladecomesto a completestop beforeremovingthe grasscatcheror unclogging the chute. The cutting bladecontinuesto rotatefora few secondsafter the engine is shut off. Neverplace any partof the body in the bladearea until you are surethe bladehas stopped rotating. 20. Neveroperate mowerwithoutpropertrail shield, discharge cover,grasscatcher,bladecontrol handle or othersafety protectivedevices in placeand working.Neveroperate mowerwith damagedsafetydevices.
IMPORTANT:This unit isshipped without gasolineor oil in the engine.Fill up gasoline and oil as instructed in the accompanying enginemanualBEFOREoperatingyour mower. 1. Removeanypackingmaterialwhich may be between upperand lowerhandles. a. Pull up and backon upperhandleas shownin Figure3-1.Makecertain the lowerhandleis seated securelyintothe handle mountingbrackets.Donot crimpcablewhile lifting the handleup. b. Tightenstar knobssecuringupperhandleto lower handle.See Figure3-1.
Followstepsbelowto assemblethe grasscatcher (if needed).Makecertain bag is turnedrightside out beforeassembling(warninglabelwill be on the outside). a. Placebag overframe sothat its black plasticside is at the bottom. b. Slip plasticchannelof grass bagoverhooks on the frame.See Figure3-5. All theplasticchannels exceptcentertop of bag attachfrom outsideof bag. Adju t,,,onl c. Attachcentertop of bag from insideof bag. 6. Followstepsbelowto attachgrass catcher: a. Lift rear dischargedoor. b.
Know Your Lawn Mower Blade Control CuttingHeightAdjustment Levers(one at eachwheel) WARNING The bladecontrolis a safetydevice. DO NOT bypassits operations. Use extremecarewhen handlinggasoline. Gasolineis extremely I flammable andthe vapors ; are explosive.Never fuel ; the machine indoorsor i i whilethe engineis hot or running.Extinguish c=garettes,e=gars,pipes and othersourcesof ignition. Figure4-1:The maincomponentson the mower.
Starting Engine _IL ARNING:Be sure no one otherthan the operatorisstanding near the lawn mower while starting engine or operatingmower. Never run engineindoorsor in enclosed,poorly ventilated areas. Engine exhaust contains carbon monoxide, an odorless and deadly gas. Keep hands, feet, hair and looseclothing away from any moving partson engine and lawn mower. Follow the set of instructionspertainingto your unit. Mower Refer to enginemanual for help with the engine.
F _" Lubrication • Lubricatepivot pointson theblade controlat least oncea seasonwith lightoil. The bladecontrol must operatefreely in both directions.See Figure5-1. • Lubricatethe wheelsat least oncea seasonwith lightoil (or motoroil). If wheelsare removedfor any reason,lubricate surfaceof the pivotarm and inner surfaceof thewheelwith light oil. See Figure5-1. \ • Lubricatethe torsionspringand pivot pointon the rear dischargedoor periodicallywith lightoil to prevent rust.See Figure5-1.
_kL ARNING:Whenremovingthe cutting blade for sharpeningor replacement, protectyour handswith a pairof heavyglovesor use a heavyrag to hold the blade. Periodicallyinspectthe bladeadapterfor cracks, especiallyif youstrikea foreignobject. Replacewhen necessary.Followthe stepsbelowfor blade service. 1. Disconnectsparkplug wirefrom spark plug.Turn moweron itsside makingsurethat the air filter and the carburetorare up. Figure5-2:Removebladeand hardware. 2.
Problem Cause Remedy I Eng=nefalls to start 1. Biadecontroldlsengaged. 21 spark plug Wiredisconnected. 1, Engagebladecontrol. 2, Connect wiretOspark plug. Fue!tank empty 0r sta!e!ueL Fil!tank with C!eanl!resh gaso!inel Enginenot choked. I & ,Chokeengine as instructedinthe Operatingyour Lawn Mower section, 5. Clean adjustgap orreplace. 61 clean fue!iinel I 5. Faultyspark p!ug, Blockedfuel iinel i i i_iii _i_'i__ii i/ 7 EngineflOoded: . 7 1. Sparkplug wire loose. 2.
Safety Label Found On Your Lawn Mower 13
Model Series 410 & 420 _2_ Zag Tread Pin BarTread 14 S-WaveTread K2 Tread
1 747-1161A Blade Control 687-02074A Ht. Adj.Assy. Front- RH (8"Wheel) 2 749-1092A UpperHandle 687-02099A Ht. Adj.Assy. Front- LH(7" Wheel) 3 710-1205 RopeGuide 687-02100A Ht. Adj.Assy. Front- RH (7"Wheel) 4 720-0279 WingNut, 1/4-20 24 782-5002B Front Baffle 5 710-1174 CarriageBolt, 5/16-18x 2 25 748-0377C BladeAdapter 6 720-04072 HandStar Knob 26 742-0641 7 749-0928A LowerHandle 8 712-0397 WingNut, 1/4-20 27 736-0524B Blade Bell Support 9 746-0957 ControlCable- 37.
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.