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Safe Operation
Practices • Set-Up • Operation
• Maintenance
• Service • Troubleshooting
• Warranty
L
Push Mower m Moclel 50MB
MTD LLC, P.O. BOX 361131 CLEVELAND, OHiO 44136-0019
PrintedIn USA
FormNo.769-04529
(December 5 , 2008)

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Summary of Contents for MTD 11A-50MB006

  • Page 1 Safe Operation Practices • Set-Up • Operation • Maintenance • Service • Troubleshooting • Warranty Push Mower m Moclel 50MB MTD LLC, P.O. BOX 361131 CLEVELAND, OHiO 44136-0019 PrintedIn USA FormNo.769-04529 (December 5 , 2008)
  • Page 2 Choose from the options below: Visit us on the web at www.mtdproducts.com Call a Customer Support Representative at (800) 800-7:310 or (330) 220-468:3 Write us at MTD LLC • RO. Box :3611:31 • Cleveland, OH • 441:36-0019...
  • Page 3: Important Safe Operation Practices

    importantSafeOperation Practices 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 this machine. Failure to comply with these instructions may result in personal injury.
  • Page 4 12. Amissing ordamaged discharge cover can cause blade When starting engine, pull cord slowly until resistance contact orthrown o bject injuries. is felt, then pull rapidly. Rapid retraction of starter cord (kickback) will pull hand and arm toward engine faster than 13.
  • Page 5 Service Check the blade and engine mounting bolts at frequent intervals for proper tightness. Also, visually inspect blade for damage (e.g., bent, cracked, worn) Replace blade with SafeHandling Of Gas01ine: the original equipment manufacture's (O.E.M.) blade only, To avoid personal injury or property damage use extreme listed in this manual.
  • Page 6: Spark Arrestor

    SparkArrestor Notice Regarding Emissions Engines which are certified to comply with California and federal EPA emission regulations for SORE (Small Off Road Equipment) internal combustion engine and should not be used i_ll WARNING: This machine is equipped with an are certified to operate on regular unleaded gasoline,...
  • Page 7: Safety Symbols

    Safety Symbols This page depicts and describes safety symbols that may appear on this product. Read, understand, and follow all instructions on the machine before attempting to assemble and operate. READ THE OPERATOR'S MANUAL(S) Read, understand, and follow all instructions in the manual(s) before attempting assemble and operate...
  • Page 8 Sight and hold this level with a vertical tree... or a corner of a building... or a fencepost ' FOldo, diine "o --Lepre_n tsa15 o 15 ° Usethis page as a guide to determine slopes where you may not operate safely. WARNING: Do not operate your lawn mower...
  • Page 9: Assembly And Setup

    Assembly & Set-Up Contents of Carton One Lawn Mower One Bottle of Oil One Lawn Mower Operator's Manual One Mulching Baffle (If Equipped) Handle Assembly Perform the following sequence for the handle setup: NOTE:This lawn mower is shipped without gasoline or oil in the engine.
  • Page 10 NOTE: Each end of the lower handle must be placed in the Use the cable tie provided to secure cable to the lower same position on the mounting brackets. handle. Pull the cable tie tight and trim excess. See Fig. 3-5. Remove the star knobs shown in Fig.
  • Page 11 MulchingBaffle(if Equipped) Adjustments If your mower is equipped with an optional mulching CuttingHeight baffle, install it on the right side of the deck. Follow the sequence indicated here. Each wheel has a height adjustment lever to change the cutting height of the mower.
  • Page 12: Controls And Features

    Controls a nd Features Control Recoil Starter Cutting Height Adjustment Lever (one at each wheel) Mu|ching Baffle ....÷_ Figure 4-1 gecoU Starter BladeControl The recoil starter is attached to the right upper handle. Stand The blade control is attached to the upper handle of the mower. behind the unit and pull the recoil starter rope to start the unit.
  • Page 13: Operation

    Operation Starting Engine WARNING: Be sure no one other than the operator is standing near the lawn mower while starting engine or operating mower. Never run engine indoors or in enclosed, poorly ventilated areas. Engine exhaust contains carbon monoxide, an odorless and deadly gas.
  • Page 14: Maintenance And Adjustments

    Maintenance& Adjustments Maintenance Follow the Engine Maintenance section for lubrication schedule and instruction for engine lubrication. General Recommendations DeckCare Always observe safety rules when performing Clean underside of the mower deck after each use to prevent maintenance. build-up of grass clippings or other debris.
  • Page 15: Off-Season Storage

    Service BladeCare excessive vibration when rotating at high speeds. It i_ll_lhlill WARNING: An unbalanced blade will cause WARNING: When removing the cutting blade for may cause damage to mower and could break sharpening or replacement, protect your hands with causing personal injury.
  • Page 16: Troubleshooting

    Troubleshooting Problem Cause Remedy Engine Fails to start Blade control disengaged. Engage blade control. Connect wire to spark boot. Spark plug boot disconnected. Fill tank with clean, fresh gasoline. Fuel tank empty or stale fuel. Engine not primed (if equipped with primer).
  • Page 17: Engine Operation

    EngineOperation Fuel Cap Air Cleaner Grip Oil Drain Spark Plug Mumer Pre-Operation Check Oil Recommendations NOTE:This engine is shipped without gasoline or oil in the engine. Running the engine with insufficient oil can cause serious engine damage and void the engine warranty. Before starting engine, fill with oil.
  • Page 18: Starting The Engine

    Check Oil Level Check Fuel Level NOTE: Be sure to check the engine on a level surface with the Clean around fuel fill before removing cap to fuel. engine stopped. Fill tank to approximately 1-inch below lowest portion Remove the oil filler cap and wipe the dipstick clean.
  • Page 19: Engine Maintenance

    EngineMaintenance Periodic inspection and adjustment of the engine is essential if high level performance is to be maintained. Regular any maintenance. To prevent accidental start-up, ARNING: Shut offthe engine before performing disconnect the spark plug boot. maintenance will also ensure a long service life. The required service intervals and the kind of maintenance to be performed...
  • Page 20: Air Cleaner Service

    AirCleanerService Oil Service Check oil level regularly. Paper filters cannot be cleaned and must be replaced once a year or every 100 operating hours; more often if used in extremely Be sure correct oil level is maintained. Check every five dusty conditions.
  • Page 21: Spark Plug Service

    Measure the plug gap with a feeler gauge. Correct as SparkPlugService necessary by bending side electrode. See Fig. 10-4. The gap should be set to 0.030 in. plug removed. DO NOT crank engine with spark WARNING: DO NOT check for spark with spark plug removed.
  • Page 22: Fuel Filter Service

    Fuel Filter Service Storage The fuel filter cannot be cleaned and must be replaced once a Engines stored between 30 and 90 days need to be treated with year or every 100 operating hours; more often if run with old a gasoline stabilizer and engines...
  • Page 23 If the engine on your mower fails to conform to this limited fuels, lubricants, or additives. warranty, MTD will cover the cost of parts and labor associated with Special conditions or circumstances that normally require more any adjustments and/or repairs necessary to return your engine than two pulls to start, specifically: 1) First start-up following your to its warranted condition.
  • Page 24 Model 5 0M...
  • Page 25 Model 5 0M Description Description Part Number Part Number Ref. I Ref. I 710-0216 710-1205 Screw, 3/8-16 x .75 Eye Bolt 738-04267 Shoulder Screw 720-0279 Wing Nut 747-1161A-0637 Blade Control Handle 734-04082 Rear Wheel 749-1092A-0637 982-3062A Handle Bracket Assembly, Upper Handle 982-3063A 746-04300 Control...
  • Page 26 EngineModel- 1P65MO ({o_ *8 ......j...
  • Page 27 EngineModel - 1P65MO Part Number Description 951-10337 Fuel Tank 951-10336 Flywheel Shroud 951-10335 Rubber Fuel Tank Mounting Washer 951-10334 Oil Filler Tube Assembly 951-10333 Dipstick Assembly 951-10406 Cylinder Head Complete 951-10407 Short Block Assembly 951-10320 Stop Switch and Brake Assembly 951-10319 Recoil Spring and Pulley Assembly 951-10314...
  • Page 29 NOTES...
  • Page 30 MTD. OWNER'S WARRANTY RESPONSIBILITIES: As the smalloff-roadengineowner,youare responsible forthe performance of the requiredmaintenance listed in your Owner'sManual.MTD recommends that you retainall yourreceiptscoveringmaintenances on yoursmall off-roadengine,but MTDcan not denywarrantysolelyfor the lack of receiptsor foryour failureto ensurethe performanceto all scheduledmaintenance. As the smalloff-roadengineowner,youshouldhoweverbe awarethat MTDmaydenyyour warrantycoverageif yoursmall off-roadengine or part hasfaileddue toabuse, neglect,impropermaintenance or unapprovedmodifications.
  • Page 31 (8)Throughout the engine's warranty period defined inSubsection (a)(2), MTD will m aintain a supply ofwarranted parts s ufficient tomeet the expected demand forsuch parts. (9)Any replacement part m ay b eused i ntheperformance...
  • Page 32: Limited Warranty

    MANUFACTURER'S LiMiTED WARRANTY The limited warranty set forth below is given by MTD LLC with c. Service completed by someone other than an authorized service dealer. respect to new merchandise purchased and used in the United States and/or its territories and possessions, and by MTD Products Limited d.

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