MTD 430 Series Operator's Manual
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MTD 430 Series Operator's Manual

MTD 430 Series Operator's Manual

21” rear & side discharge mulching mower
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OPERATOR'S MANUAL
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
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
ECO No.
PRINTED IN U.S.A.
21" Rear & Side
Discharge
Mulching Mower
Model Series
430
FORM NO. 770-10179B.fm
(1/2001)

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Summary of Contents for MTD 430 Series

  • Page 1 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 FORM NO. 770-10179B.fm ECO No.

  • Page 2: Table Of Contents

    (Model Number) (Serial Number) Copy the model number here: Copy the serial number here: MTD PRODUCTS INC CLEVELAND, OHIO 44136 CALLING CUSTOMER SUPPORT If you have difficulty assembling this product or have any questions regarding the controls, operation or maintenance of this unit, please call the Customer Support Department.

  • Page 3: Important Safe Operation Practices

    SECTION 1: 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 20. Never operate mower without proper trail shield, Keep children away from hot or running engines. They discharge cover, grass catcher, blade control handle or can suffer burns from a hot muffler. other safety protective devices in place and working. Never allow children under 14 years old to operate a Never operate mower with damaged safety devices.
  • Page 5 Check the blade and engine mounting bolts at frequent Grass catcher components, discharge cover, and trail intervals for proper tightness. Also, visually inspect blade shield are subject to wear and damage which could for damage (e.g., bent, cracked, worn) Replace blade expose moving parts or allow objects to be thrown.

  • Page 6: Slope Gauge

    SECTION 2: SLOPE GAUGE Use this page as a guide to determine slopes where you may not operate the lawn mower safely.

  • Page 7: Assembling Your Lawn Mower

    SECTION 3: ASSEMBLING YOUR LAWN MOWER To Remove Unit From Carton This unit is shipped without gasoline or oil IMPORTANT: • Remove staples, break glue on top flaps, or cut in the engine. Be certain to service engine with gasoline tape at carton end and peel along top flap to open and oil before operating your mower.
  • Page 8 Hardtop Grass Bag • The rope guide is attached to the right side of upper handle. Loosen the wing nut which secures the Parts for Hardtop Grass Bag: rope guide. See Figure 4. 1. Front Frame • With spark plug wire disconnected and grounded, 2.
  • Page 9 • Hold the bag and frame so the bag hangs from the • To remove the mulching baffle, lift the rear frame (is not bunched around the frame). discharge door on the mower. Remove the • Slide the handle on the grass catcher frame down mulching baffle.

  • Page 10: Know Your Lawn Mower

    • On the side of the mower, lift the mulching plug. See Figure 12. • Slide the two hooks of the side discharge chute Mulching Plug under the hinge pin on the mulching plug assembly as shown below. Lower the side mulching plug. •...

  • Page 11: Operating Your Lawn Mower

    Blade Control Handle Throttle Control Your unit is equipped with one of three throttle controls WARNING: This control mechanism is a described below. Follow instructions which pertain to safety device. Never attempt to bypass its your unit. operations. 1. The throttle control is located on the left side of the The blade control handle is located on the upper handle upper handle.

  • Page 12: Making Adjustments

    WARNING: • This mower is designed to be operated at full The blade continues to rotate throttle to give you the best cut and do the most for a few seconds after engine is shut off. effective job of bagging the cut grass. WARNING: If you strike a foreign object, •...
  • Page 13 Briggs & Stratton Quantum Engines Lower Handle Notch Screw Cable Control Clamp Lever on Engine Figure 15 • Remove the starter rope from the rope guide. • Remove the upper handle by removing the hand Tecumseh Engines knobs and carriage bolts. Lay the upper handle out Cable of the way, being careful not to bend or kink the Clamp...

  • Page 14: Maintaining Your Lawn Mower

    Carburetor WARNING: If any adjustments are made to the engine while the engine is running (e.g. carburetor), keep clear of all moving parts. Be careful of heated surfaces and muffler. Minor carburetor adjustments may be required to compensate for differences in fuel, temperature, altitude and load.
  • Page 15 • Remove the bolt and blade support or bell washer • Align the blade bell support over the blade with the which hold the blade and adapter to the engine tabs in the holes of the blade and insert the hex crankshaft.

  • Page 16: Off Season Storage

    SECTION 8: OFF-SEASON STORAGE The following steps should be taken to prepare lawn • Store mower in a dry, clean area. Do not store next mower for storage. to corrosive materials, such as fertilizer. • Clean and lubricate mower thoroughly as described NOTE: When storing any type of power equipment in in the lubrication instructions.

  • Page 17: Troubleshooting

    SECTION 9: TROUBLE SHOOTING GUIDE Trouble Possible Cause(s) Corrective Actions Engine fails to 1. Blade control handle 1. Engage blade control handle. start disengaged. 2. Connect wire to spark plug. 2. Spark plug wire disconnected. 3. Refer to the engine manual packed with your unit. 3.

  • Page 18: Parts List

    SECTION 10: PARTS LIST FOR MODELS 430 THROUGH 439 Hardware for wheel 734-1978...
  • Page 19 Models 430 Through 439 Ref. Part No. Description Ref. Part No. Description 747-1161A Control Handle 14579 Height Adj. Assy. Comp. - LH 710-1205 Rope Guide 14765 Pivot Bar R.H. 720-0279 Handle Knob 1/4-20 Thd. 14766 Pivot Bar L.H. 710-1174 Curved Hd. Bolt 5/16-18 x 2" Lg. 782-5002 Front Baffle 720-0314...
  • Page 20 Shroud Chart Part No. Color Part No. Color Part No. Color 731-1395A 731-1402A Yellow 751B281439 Dark Red 731-1396A Black 731-1694 Black 751B281440 Black 731-1397A Gray 731-1695 Silver 751B281443 Bright Red Hardware: 710-1256 731-1934A Charcoal Hardware: 710-1256 (Screw) Hardware: 710-1256 (Screw) Part No.
  • Page 21 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 merchandise as brake adjustments, clutch adjustments or deck purchased and used in the United States, its possessions adjustments;...

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