MTD Yard-Man 12A-559K401 Operator's Manual
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MTD Yard-Man 12A-559K401 Operator's Manual

MTD Yard-Man 12A-559K401 Operator's Manual

21" self propelled mulching mower
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See also: Operator's Manual
Operator's Manual
21" Self Propelled
Mulching Mower
Model No.
12A-559K401
IMPORTANT:
Read safety rules and instructions
carefully
before operating
equipment.
Warning:
This unit is equipped with an internal combustion engine and should not be used on or near any unimproved
forest*
covered, brush*covered
or grass-covered
land unless the engine's exhaust system is equipped with a spark arrester meeting
applicable local or state laws (if any). If a spark arrester is used, it should be maintained in effective working order by the operator.
In the State of California the above is required by law (Section 4442 of the California Public Resources Code). Other states may have
similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized
service dealer or contact the service department,
P.O. Box 368022 Cleveland, Ohio 44136-9722.
MTD PRODUCTS
INC. P.O. BOX 368022 CLEVELAND,
OHIO 44136-9722
PRINTED IN U.S.A.
FORM NO. 770-10145A
(12/99)

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Summary of Contents for MTD Yard-Man 12A-559K401

  • Page 1 Operator's Manual 21" Self Propelled Mulching Mower Model No. 12A-559K401 IMPORTANT: Read safety rules and instructions carefully before operating equipment. Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest* covered, brush*covered or grass-covered...

  • Page 2: Table Of Contents

    TABLEOFCONTENTS Content Page Maintaining Safe Operation Practices ............... Slope Guage ...................... Hardware Pack ....................Unpacking ......................Assembling Your Lawn Mower ................Know Your Lawn Mower ..................Operating Your Lawn Mower ................Maintaining Your Lawn Mower ................Service ....................... Off-Season Storage ................... Troubleshooting ....................

  • Page 3: Maintaining Safe Operation Practices

    SECTION 1: MAINTAINING SAFEOPERATION P RACTICES WARNING: THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH, IF NOT FOLLOWED, COULD ENDANGER THE PERSONAL SAFETY AND/OR PROPERTY OF YOURSELF AND OTHERS. READ AND FOLLOW ALL INSTRUCTIONS IN THIS MANUAL BEFORE ATTEMPTING TO OPERATE YOUR LAWN MOWER. FAILURE TO COMPLY WITH THESE INSTRUCTIONS RESULT IN PERSONAL INJURY.
  • Page 4 Theblade control h andle is a safety device. N ever DONOT: attempt tobypass itsoperation. Doing somakes Do not mow near drop-offs, ditches or thesafety device inoperative a ndmayresult i n embankments. The operator could lose footing or personal injury through contact w iththerotating balance.
  • Page 5 • Beforecleaning, r epairing, or inspecting, make certain t heblade andallmoving p arts have stopped. • Afterstrikinga foreign object,stopthe engine, Disconnect the spark plugwire,andkeep thewire remove t hewirefrom thespark plug, a nd thoroughly awayfromthe sparkplugto prevent a ccidental inspect mower any damage.

  • Page 6: Slope Guage

    SIGHT AND HOLD THIS LEVEL WITH A VERTICAL TREE A POWER POLE >, ,_ A CORNER OF A BUILDING """""-'. 'i _ ORA FENCE POST oJr Oo L.IIV £O ._. _ wARNING & Do not mow on inclines with a slope in excess of 15 degrees (a rise of approximately 2-1/2 feet every 10 feet).

  • Page 7: Hardware Pack

    SECTION 3: HARDWARE P ACK Please identify each piece of the hardware pack as Figure 1 shown in Figure 1. Wing Nut 1/4-20 (2) Carriage Bolt 1/4-20 (2) SECTION 4: UNPACKING Roll or slide unit out of carton. Check carton Removing UnitFromCarton thoroughly for loose parts.
  • Page 8 Raise theupper handle inthedirection shown in Figure 3 (step 3).Tighten thewingnutswhich are Cable Tie already onthehandle. S eeFigure 4. Upper H andle Lower \ \/ Lower Handle Handle Figure 6 Figure 4 Attaching StarterRope NOTE: Make sure to route the cables inside the lower The rope guide is already attached to the right side of handle.

  • Page 9: Know Your Lawnmower

    NOTE: Make sure that the cables are routed to the outside of the handle and out of the way when attaching door the grasscatcher. Place the hooks of the grasscatcher into the slots in the handle bracket assemblies on both sides. See Figure 9.

  • Page 10: Operating Your Lawn Mower

    The blade control handle is located on the upper handle StarterRope of the mower. The blade control handle must be The starter rope is attached to the handle. Stand behind depressed in order to operate the unit. Release the the unit and pull the starter rope to start the unit. blade control handle to stop the engine and the blade.
  • Page 11 For best results, do not cut wet grass because it Starting Engine tends to stick to the underside of the mower, WARNING: Be sure no one other than the preventing proper discharge of grass clippings, and could cause you to slip and fall. New grass, thick operator is standing near the lawn mower grass or wet grass may require a narrower cut.

  • Page 12: Maintaining Your Lawn Mower

    SECTION 8: MAINTAINING YOUR LAWN MOWER &, WARNING: Always stop the engine and Service foam filter in the air cleaner every 25 hours disconnect the spark plug wire before of use and replace the paper filter component every performing maintenance work 100 hours.

  • Page 13: Service

    SECTION 9: SERVICE BladeCare Secure the blade to the assembly with two hex bolts and lock nuts. Tighten the hex bolts to the Periodically inspect the blade adapter and pulley for recommended torque. Refer to 'Blade Mounting cracks, especially if you strike a foreign object. Replace Torque' section on this page.
  • Page 14 Loosen thecenter h exboltandlower thebladeand Reassemble inreverse order w ithnewbelt(part # engine pulleyuntil t hereisadequate c learance t o 754-0465). NOTE: B egin idlerreassembly by movethebeltpast t hebeltkeeper. inserting boltupthrough theidlerbracket h ole. Remove t hebelt f romtheengine pulleyandaround Adjust t hedriveclutch following instructions on theblade.
  • Page 15 An adjusting plate and thumb lever at each wheel Adjusting HandleHeight position provides cutting height adjustment. Each Your mower is shipped with the handle in the higher adjusting plate has nine height positions. Height of cut height position. To lower the handle height, proceed as will be changed when the thumb lever is moved from follows.

  • Page 16: Off-Season Storage

    SECTION 10: OFF-SEASONSTORAGE Prepare your lawn mower for storage at the end of the Engine season or if the unit will not be used for 30 days or Follow recommendations in the accompanying more. Store the mower in a clean, dry area. engine manual for off-season storage of the engine.

  • Page 17: Troubleshooting

    SECTION 11: TROUBLE-SH00TING G UIDE PROBLEM POSSIBLE CAUSE CORRECTIVE ACTION Engine fails to start Blade control handle disengaged Engage blade control handle Spark plug wire disconnected Connect wire to spark plug Fuel tank empty, or stale fuel Fill up tank with fresh gasoline Blocked fuel line Clean fuel line Faulty spark plug...

  • Page 18: Parts List

    SECTION 12: PARTS LIST FORMODEL 559K _,18...
  • Page 20 MODEL 559K Ref. No Part No. Re& No Pad No. Description Description 756-1146 731-1057 Drive Pulley Upper Drive Cover 731-0620 748-0411 Drive Lever Blade Adapter 742-0741 731-1058 Lower Drive Cover 21" Mulching Blade 736-0452 Fiat Washer.516 x 1,5 x, 134 731-1059 Mounting Cap 710-0606...
  • Page 21 MODEL 559K ® 38 .- ." •• ®...
  • Page 22 MODEL 559K Ref. No Re_ No Part No. Pad No. Description Description 712-3025 Hex Jam Nut 5/16-24 732-0708 Bearing Retainer 736-0425 Bell Washer .325 x .930 x .045 741-0604 Bearing Sleeve .50 I.D. 756-1042 748-0355 Pulley, 3.82 x .313 x .68 Bearing Support 736-0425 Bell Washer .325 x .930 x .045...
  • Page 23 MANUFACTURER'S LIMITED WARRANTY FOR: c. Routine maintenance items such as lubricants, filters, The limited warranty set forth below is given by MTD blade sharpening and tune-ups, or adjustments such PRODUCTS INC ("MTD") with respect to new merchan- as brake adjustments, clutch adjustments or deck dise purchased and used in the United States, its posses-...

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