MTD 430-439 Series Operator's Manual
MTD 430-439 Series Operator's Manual

MTD 430-439 Series Operator's Manual

21” rear & side discharge mulching lawn mower

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Operator's Manual
21" Rear & Side
Discharge Mulching

Lawn Mower

Model Series 430-439
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 LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
FORM NO. 770-10179C.fm
PRINTED IN U.S.A.
(11/2001)

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Summary of Contents for MTD 430-439 Series

  • Page 1: Lawn Mower

    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 LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019 FORM NO. 770-10179C.fm PRINTED IN U.S.A.
  • Page 2: Table Of Contents

    Troubleshooting ... 15 Parts List ... 16 This Operator’s Manual is an important part of your new Lawn Mower. It will help you assemble, prepare and maintain the unit for best performance. Please read and understand what it says. Before you start assembling your new equipment, please locate the model plate on the equipment and copy the information from it in the space provided below.
  • 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: Slope Operation

    8. Never operate the mower in wet grass. Always be sure of your footing. A slip and fall can cause serious personal injury. If you feel you are losing your footing, release the blade control handle immediately and the blade will stop rotating within three seconds.
  • Page 5 7. Extinguish all cigarettes, cigars, pipes and other sources of ignition. 8. Never fuel machine indoors because flammable vapors will accumulate in the area. 9. Never remove gas cap or add fuel while the engine is hot or running. Allow engine to cool at least two minutes before refueling.
  • Page 6: Slope Gauge

    SECTION 2: SLOPE GAUGE...
  • Page 7: Assembling Your Lawn Mower

    Disconnecting Spark Plug • Before setting up your lawn mower, disconnect the spark plug wire from the spark plug, and ground it to a bolt, retaining post or V-slot on the engine. See Figure 1.
  • Page 8: Grass Catcher Assembly

    • Insert post of cable ties that are on lower handle into the holes provided on the lower handle. The holes may be on the inside or outside. Pull cable ties tight and cut off the extra. See Figure 5 below. Cable Tie Post on Cable Tie...
  • Page 9 from the black plastic bottom of the bag. Push the two frames together until the cross piece on the front frame contacts the rear frame. • Slip the openings in the side of the plastic channel on the bag over hooks on the grass catcher frame. See Figure 9 B.
  • Page 10: Know Your Lawn Mower

    Figure 14 SECTION 4: KNOW YOUR LAWN MOWER Read this owner’s manual and safety rules before operating your lawn mower. Compare the illustrations in Figure 15 with your lawn mower to familiarize yourself with the location of various controls and adjustments.
  • Page 11: Operating Your Lawn Mower

    Starting Engine WARNING: Be sure no one other than the operator is standing near the lawn mower while starting engine or operating mower. WARNING: Never run engine indoors or in enclosed, poorly ventilated areas. Engine exhaust contains carbon monoxide, an odorless and deadly gas.
  • Page 12: Maintaining Your Lawn Mower

    Using the Mulcher • For effective mulching, do not cut wet grass because it tends to stick to the underside of the SECTION 6: MAINTAINING YOUR LAWN MOWER WARNING: Always stop engine and disconnect spark plug wire before performing any maintenance or adjustments on the mower.
  • Page 13: Blade Care

    Engine • Follow the engine manual instructions and recommended schedule for lubricating engine. Pivot Points • Lubricate the pivot points on the discharge chute door, blade control handle and the cutting height adjustment lever at least once a season with light oil.
  • Page 14: Making Adjustments

    • Insert hairpin clips in the inner holes of the weld pins and attach the starter rope as instructed in the “Assembling Your Lawn Mower” section. Adjusting Cutting Height All wheels must be placed in the same IMPORTANT: relative position.
  • Page 15: Off- Season Storage

    SECTION 9: OFF-SEASON STORAGE Prepare your lawn mower for storage at the end of the season or if the unit will not be used for 30 days or more. Store the mower in a clean, dry area. Gasoline • Do not store gasoline from one season to another.
  • Page 16: Parts List

    SECTION 11: PARTS LIST FOR MODEL SERIES 430-439 Hardware for wheel 734-1978...
  • Page 17 Model Series 430-439 Ref. Part No. 747-1161A Control Handle 710-1205 Rope Guide 720-0279 Handle Knob 1/4-20 Thd. 710-1174 Curved Hd. Bolt 5/16-18 x 2" 731-2626 Bail Cover † 720-0284 Hand Knob 749-1092A Upper Handle 720-0295 Foam Grip † 749-0928 Lower Handle 726-0240 Cable Tie 764-0310...
  • Page 18: Shroud Chart

    Shroud Chart Part No. Color 751B281439 Dark Red 751B281440 Black 751B281443 Bright Red Hardware: 710-1256 (Screw) Part No. Color 731-1585B Black Hardware: 710-1274 (Screw) Part No. Color 7511681311 Black 7511681911 7511682011 Gray Part No. Color 731-1395A 731-1396A Black 731-1397A Gray Hardware: 710-1256 Part No.
  • Page 19: Your Notes

    Your Notes Date Comments...
  • Page 20 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, its possessions and territories. MTD LLC warrants this product against defects for a period of...

This manual is also suitable for:

430 series439 series

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