MTD 12A-446M001 Operator's Manual
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MTD 12A-446M001 Operator's Manual

Self propelled mower
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Safe Operation Practices • Set-Up • Operation • Maintenance • Service • Troubleshooting • Warranty
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Self Propelled Mower — Model Series 440
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. 769-03752
(December 17, 2007)

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Summary of Contents for MTD 12A-446M001

  • 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. 769-03752...

  • Page 2: Table Of Contents

    Choose from the options below: ◊ Visit us on the web at www.mtdproducts.com ◊ 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...

  • 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 When starting engine, pull cord slowly until resistance contact or thrown object injuries. is felt, then pull rapidly. Rapid retraction of starter cord (kickback) will pull hand and arm toward engine faster than Many injuries occur as a result of the mower being pulled you can let go.
  • Page 5 Service Check the blade and engine mounting bolts at frequent intervals for proper tightness. Also, visually inspect blade Safe Handling Of Gasoline: for damage (e.g., bent, cracked, worn) Replace blade with 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 Average Useful Life WARNING: According to the Consumer Products Safety Commission This machine is equipped with an (CPSC) and the U.S. Environmental Protection Agency (EPA), internal combustion engine and should not be used this product has an Average Useful Life of seven (7) years, or 140 on or near any unimproved forest-covered, brush hours of operation.
  • Page 7 2 — i ectiOn MpOrtant peratiOn ractices...

  • Page 8: Assembly & Set-Up

    Assembly & Set-Up Contents of Carton • One Lawn Mower • One Grass Catcher • One Bottle of Oil • One Lawn Mower Operator’s Manual • One Engine Operator’s Manual • One Hardware Pack Assembly Insert a carriage bolt from the hardware pack into the upper hole on the handle mounting bracket.
  • Page 9 Grass Catcher The rope guide is attached to the right side of the upper handle. Loosen the wing nut which secures the rope guide. Follow steps below to assemble the grass catcher (if See Fig. 3-3. needed).Make certain bag is turned right side out before assembling (warning label will be on the outside).
  • Page 10 Adjustments Follow steps below to attach grass catcher: Lift rear discharge door. Cutting Height Place grass catcher on the pivot rod. Let go of An adjusting plate and thumb lever at each wheel provides discharge door so that it rests on the grass catcher. cutting height adjustment.

  • Page 11: Controls & Features

    Controls and Features Blade Control Electric Start Ignition Switch Drive Control Recoil Starter Grass Catcher Cutting Height Adjustment Levers Figure 4-1 Blade Control Recoil Starter The blade control is attached to the upper handle of the mower. The recoil starter is attached to the right upper handle. Stand Depress and squeeze it against the upper handle to operate the behind the unit and pull the recoil starter rope to start the unit.

  • Page 12: 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 13: Maintenance & Adjustment

    Maintenance & Adjustments Maintenance Lubricate the wheels at least once a season with light oil (or motor oil). If wheels are removed for any reason, lubricate General Recommendations surface of the pivot arm and inner surface of the wheel with light oil. See Fig. 6-1. •...
  • Page 14 Replacing Rear Flap Engine Care A list of key engine maintenance jobs required for good To remove rear flap, lift rear door, and press flap in on performance by the mower is given below. Follow the either side to remove from hole. See Fig. 6-2. accompanying engine manual for a detailed list and instructions.

  • Page 15: Service

    Service Blade Care WARNING: An unbalanced blade will cause excessive vibration when rotating at high speeds. It 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. a pair of heavy gloves or use a heavy rag to hold the Lubricate the engine crankshaft and the inner surface of blade.
  • Page 16 Tip mower on its side with the air filter up to access belt Replace with new belt, making sure belt is firmly seated on from underside of mower and remove blade as described engine pulley while pulling from the other side and sliding in the previous section.
  • Page 17 Charging Battery (If Equipped) Open battery cover, remove positive and negative leads from battery, remove and replace with new battery. WARNING: Connect the positive lead to the positive side of the battery The battery contains corrosive fluid pack, then connect the negative side. and toxic material;...
  • Page 18 Replacing Fuse (If Equipped) Off-Season Storage The electric starter circuit and battery are protected by a 40 The following steps should be taken to prepare your lawn mower ampere fuse. If the fuse burns out, the electric starter will not for storage.

  • Page 19: Troubleshooting

    Troubleshooting Problem Cause Remedy Engine Fails to start Blade control disengaged. Engage blade control. Spark plug boot disconnected. Connect wire to spark boot. Fuel tank empty or stale fuel. Fill tank with clean, fresh gasoline. Engine not primed (if equipped with primer). Prime engine as instructed in the Operation section.
  • Page 20 Troubleshooting Problem Cause Remedy Uneven cut Wheels not positioned correctly. Place all four wheels in same height position (if equipped with individual height adjusters). Dull blade. Sharpen or replace blade. Mower will not self propel Belt not installed properly. Check belt for proper pulley installation and movement.
  • Page 21 Notes...

  • Page 22: Illustrated Parts List

    Model Series 440...
  • Page 23 Model Series 440 Part Number Description Part Number Description 747-1161A Blade Control 731-05642 Trailshield 749-1092A Upper Handle 782-7551A Wheel Dust Cap 712-0397 Wing Nut, 1/4-20 749-1233D† Upper Handle 747-04587 Rear Door Pivot Rod 747-04080A Grass Catcher Frame 732-04175 Spring Lever 749-0928A Lower Handle 687-02333...

  • Page 24: Warranty

    MANUFACTURER’S LIMITED WARRANTY FOR The limited warranty set forth below is given by MTD LLC with c. Routine maintenance items such as lubricants, filters, blade respect to new merchandise purchased and used in the United States sharpening, tune-ups, brake adjustments, clutch adjustments,...

This manual is also suitable for:

440 series

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