MTD 50MB Operator's Manual
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MTD 50MB Operator's Manual

MTD 50MB Operator's Manual

Mtd push mower operator's manual
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Safe Operation Practices • Set-Up • Operation • Maintenance • Service • Troubleshooting • Warranty
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Push Mower — Model 50MB
WARNING
READ AND FOLLOW ALL SAFETY RULES AND INSTRUCTIONS IN THIS MANUAL
BEFORE ATTEMPTING TO OPERATE THIS MACHINE.
FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
Printed In USA
Form No. 769-03757
(December 19, 2007)

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  • Page 1 READ AND FOLLOW ALL SAFETY RULES AND INSTRUCTIONS IN THIS MANUAL BEFORE ATTEMPTING TO OPERATE THIS MACHINE. FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY. MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019 Printed In USA Form No. 769-03757...

  • Page 2: Table Of Contents

    Call a Customer Support Representative at (800) 800-7310 or (330) 220-4683 ◊ Write us at MTD LLC • P.O. Box 361131 • Cleveland, OH • 44136-0019 This product has met the rigid safety standards of the Outdoor Power Equipment Institute and an independent testing laboratory.

  • Page 3: Safe Operation Practices

    Important Safe Operation 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 A missing or damaged discharge cover can cause blade contact or thrown object injuries. Many injuries occur as a result of the mower being pulled over the foot during a fall caused by slipping or tripping. Do not hold on to the mower if you are falling; release the handle immediately.
  • Page 5 Service Safe Handling Of Gasoline: To avoid personal injury or property damage use extreme care in handling gasoline. Gasoline is extremely flammable and the vapors are explosive. Serious personal injury can occur when gasoline is spilled on yourself or your clothes, which can ignite.

  • Page 6: Spark Arrestor

    Spark Arrestor WARNING: This machine 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.
  • Page 7 2 — i ectiOn MpOrtant peratiOn ractices...

  • Page 8: Assembly & Set-Up

    • One Mulching Baffle (If Equipped) Assembly NOTE: This lawn mower is shipped without gasoline or oil in the engine. Fill up the gasoline and oil as instructed in the accompanying engine manual BEFORE operating your mower. For shipping purposes, the chute deflector on your mower is held in an upright position by a retainer.
  • Page 9 NOTE: Each end of the lower handle must be placed in the same position on the mounting brackets. Remove the star knobs shown in Fig. 3-3 and remove the lower handle. Figure 3-3 Position each handle bracket stud into the top hole in the lower handle.
  • Page 10 Mulching Baffle (If Equipped) If your mower is equipped with an optional mulching baffle, install it on the right side of the deck. Follow the sequence indicated here. Lift up and hold the side-discharge chute deflector and insert the bottom lip of the mulching baffle inside the chute opening See Fig.

  • Page 11: Controls & Features

    Controls and Features Recoil Starter Blade Control The blade control is attached to the upper handle of the mower. Depress and squeeze it against the upper handle to operate the unit. Release it to stop engine and blade. WARNING: This blade control is a safety device. Never attempt to bypass its operations.

  • Page 12: Operation

    Using Your Lawn Mower Be sure lawn is clear of stones, sticks, wire, or other objects which could damage lawn mower or engine. Such objects could be accidently thrown by the mower in any direction and cause serious personal injury to the operator and others.

  • Page 13: Maintenance & Adjustment

    Always observe safety rules when performing any maintenance. • The warranty on this lawn mower does not cover items that have been subjected to operator abuse or negligence. To receive full value from warranty, operator must maintain the lawn mower as instructed here.

  • Page 14: Service

    To ensure safe operation of your mower, periodically check the blade bolt for correct torque. Off-Season Storage The following steps should be taken to prepare your lawn mower for storage. • Clean and lubricate mower thoroughly as described in the lubrication instructions.

  • Page 15: Troubleshooting

    Troubleshooting Problem Engine Fails to start Engine runs erratic Engine overheats Occasional skips (hesitates) at high speed Idles poorly Excessive Vibration Mower will not mulch grass Uneven cut Cause Blade control disengaged. Spark plug boot disconnected. Fuel tank empty or stale fuel. Engine not primed (if equipped with primer).

  • Page 16: Engine Operation

    Engine Operation Fuel Cap Starter Grip Oil Fill Oil Drain 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. •...

  • Page 17: Starting The Engine

    Check Oil Level NOTE: Be sure to check the engine on a level surface with the engine stopped. Remove the oil filler cap and wipe the dipstick clean. See Fig. 10-2. Oil Fill Cap/ Dipstick Upper Level Figure 10- Insert the dipstick into the oil filler neck, but do not screw it in.

  • Page 18: Engine Maintenance

    Engine Maintenance WARNING: Shut off the engine before performing any maintenance. To prevent accidental start-up, disconnect the spark plug boot. IMPORTANT: If engine must be tipped to transport equipment or to inspect or remove grass, keep spark plug side of engine up.
  • Page 19 Oil Service • Check oil level regularly. • Be sure correct oil level is maintained. Check every five hours or daily before starting engine. See oil checking procedure in the Operation section. Oil Change IMPORTANT: Be sure to check engine on a level surface with the engine stopped.
  • Page 20 Spark Plug Service WARNING: DO NOT check for spark with spark plug removed. DO NOT crank engine with spark plug removed. To ensure proper engine operation, the spark plug must be properly gapped and free of deposits. Remove the spark plug boot and use a spark plug wrench to remove the plug.

  • Page 21: Removing From Storage

    Fuel Filter Service The fuel filter cannot be cleaned and must be replaced once a year or every 100 operating hours; more often if run with old gasoline. Remove all fuel from tank by running engine until it stops from lack of fuel. Remove c-clamp from fuel line and remove fuel line from tank outlet.
  • Page 22 If the engine on your mower fails to conform to this limited warranty, MTD will cover the cost of parts and labor associated with any adjustments and/or repairs necessary to return your engine to its warranted condition.
  • Page 23 Notes...

  • Page 24: Illustrated Parts List

    Model 50M...
  • Page 25 Ref. Part Number Description 710-1205 Eye Bolt 720-0279 Wing Nut 747-1161A Blade Control Handle 749-1092A Upper Handle 746-04300 Control Cable 749-04037 Lower Handle 725-0157 Cable Tie 687-02048 Deck Assembly, 22” 710-0654A TT Screw, 3/8-16 x 1.0 748-0376C Blade Adapter 742-0742A Mulching Blade, 22”...
  • Page 26 Engine Model - 1P65...
  • Page 27 Part Number 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 Push Rod Kit 951-10313...
  • Page 28 Notes...
  • Page 29 Otes...

  • Page 30: Emission Control System Warranty Statement

    MTD CONSUMER GROUP (MTD) and the United States Environment Protection Agency (U. S. EPA) The U. S. EPA and MTD are pleased to explain the emissions control system warranty on your model year 2005 and later small off-road engine. New small off-road engines must be designed, built and equipped to meet the stringent anti-smog standards. MTD must warranty the emission control system on your engine for the period of time listed below, provided there has been no abuse, neglect or improper maintenance of your small off-road engine.
  • Page 31 (c) MTD will include a copy of the following emission warranty parts list with each new engine, using those portions of the list applicable to the engine.
  • Page 32 MANUFACTURER’S LIMITED WARRANTY FOR The limited warranty set forth below is given by MTD LLC with respect to new merchandise purchased and used in the United States and/or its territories and possessions, and by MTD Products Limited with respect to new merchandise purchased and used in Canada and/ or its territories and possessions (either entity respectively, “MTD”).

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