Yard Machines 230 Operator's Manual
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Yard Machines 230 Operator's Manual

Yard Machines 230 Operator's Manual

22" self-propelled rotary mowers
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O
M
PERATOR'S
ANUAL
Model Series
230 and 520
22" SELF-PROPELLED
ROTARY MOWERS
(520 Series Shown)
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
PRINTED IN U.S.A.
FORM NO.770-10013
(11/98)

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  • Page 1 PERATOR’S ANUAL Model Series 230 and 520 22" SELF-PROPELLED ROTARY MOWERS (520 Series Shown) 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...

  • Page 2: Section 1: Finding Your Model Number

    SECTION 1: FINDING YOUR MODEL NUMBER This Operator’s Manual is an important part of your new walk behind lawn mower. It will help you assemble, prepare and maintain your machine. Please read and understand what it says. Before you start to prepare your walk behind lawn mower for its first use, please locate the model plate and copy the information from it in this Operator’s Manual.

  • Page 3: Section 3: Important Safe Operation Practices

    SECTION 3: 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 your lawn mower. failure to comply with these instructions may result in personal injury.

  • Page 4: Slope Operation

    • Do not engage the self-propelled mechanism on • Always be sure of your footing. A slip and fall can units so equipped while starting engine. cause serious personal injury. If you feel you are losing your balance release the blade control •...
  • Page 5 • To reduce fire hazard, keep mower free of grass, • After striking a foreign object, stop the engine, leaves, or other debris build-up. Clean up oil or fuel remove the wire from the spark plug, and spillage. Allow mower to cool at least 5 minutes thoroughly inspect the mower for any damage.

  • Page 6: Section 4: Slope Gauge

    SECTION 4: SLOPE GAUGE...

  • Page 7: Section 5: Unpacking

    SECTION 5: UNPACKING REMOVING UNIT FROM CARTON • Remove staples, break glue on top flaps, or cut tape at carton end and peel along top flap to open carton. • Remove loose parts if included with unit (i.e., operator's manual, etc.). •...

  • Page 8: How To Set Up Your Lawn Mower

    • Tighten the hand knobs on each side of the handle. Make sure that the carriage bolts are seated properly into the handle. See Figure 5A. NOTE: FOR SERIES 230 UNITS ONLY Your mower is shipped with the handle in the higher height position. If you wish to lower the height of the handle, refer to the Adjustment Section at this time.

  • Page 9: Final Assembly

    • To remove this retainer, move the spring-loaded chute toward the engine by pushing above the retainer. • Remove the retainer and carefully lower the chute into operating position, keeping fingers out of the way. See Figure 6. WARNING: The shipping chute retainer must be removed and discarded before operating the mower. MULCHING BAFFLE (OPTIONAL) A mulching kit is available for the mowers shown in this manual.

  • Page 10: Section 6: Controls

    SECTION 6: CONTROLS Drive Clutch Blade Control Handle Control Recoil Blade Control Handle Starter Drive Clutch Control Recoil Starter Figure 8 BLADE CONTROL HANDLE WARNING: This control mechanism is a safety device. Never attempt to bypass its operations. The blade control handle is located on the upper handle of the mower. See Figure 8. The blade control handle must be depressed in order to operate the unit.

  • Page 11: Section 7: Operation

    SECTION 7: OPERATION WARNING: Keep hands and feet away from the chute area on cutting deck. See Figure 2 in the Safety Section. WARNING: The operation of any lawn mower can result in foreign objects being thrown into the eyes, which can result in severe eye damage.

  • Page 12: Section 8: Adjustments

    TO STOP ENGINE AND BLADE • Move throttle control lever (if equipped on the handle) to the SLOW position (turtle). • Release the blade control handle to stop the engine and blade. WARNING: The blade continues to rotate for a few seconds after the engine is shut off. •...

  • Page 13: Handle Height Adjustment

    See Figure 9. HANDLE HEIGHT ADJUSTMENT (230 series mowers only) Your mower is shipped with the handle in the higher height position. To lower the handle height, proceed as follows. • Remove the starter rope from the rope guide.

  • Page 14: Carburetor Adjustments

    Style 2 Controls: To adjust the tension on the belt, first adjust the cable at the cable bracket on the handle. Proceed as follows: • Engage the drive clutch control handle (squeeze handle against the upper handle). Measure the spring on the drive clutch cable.

  • Page 15: Cutting Blade

    LUBRICATION WARNING: Always stop engine and disconnect spark plug wire before cleaning, lubricating or doing any kind of work on lawn mower. Blade Control Lubricate the pivot points on the blade control handle and the brake cable at least once a season with light oil. See Figure 12.

  • Page 16: Blade Mounting Torque

    Replacing Blade NOTE: If the adapter is keyed, make sure that the key in the adapter is aligned with the key slot on the crankshaft. • Place the two pulleys, the flat washer, the spring washer and the spacer on the engine crankshaft. See Figure Spacer Spring Washer...

  • Page 17: Belt Replacement

    ENGINE Refer to the separate engine manual for engine maintenance instructions. • Maintain engine oil as instructed in the separate engine manual packed with your unit. Read and follow instructions carefully. • Service air cleaner every 25 hours under normal conditions. Clean every few hours under extremely dusty conditions.

  • Page 18: Section 10: Off-Season Storage

    Idler Pulley Belt Figure 16 • Release the idler pulley so that it falls down into position. Slide the belt in between the idler pulley and the belt cover on the idler pulley bracket. See Figure 17. • Lightly grease the crankshaft. Place the belt between the two pulley halves, and reassemble the blade adapter and the blade.

  • Page 19: Section 11: Trouble Shooting Guide

    SECTION 11: TROUBLE SHOOTING GUIDE Trouble Possible Cause(s) Corrective Actions Engine fails to Blade control handle disengaged. Engage blade control handle. start Spark plug wire disconnected. Connect wire to spark plug. Dirty aircleaner. Refer to the engine manual packed with your unit. Primer button not depressed.
  • Page 20 Model Series 230 94 95...
  • Page 21 Model Series 230 REF. REF. PART NO. DESCRIPTION PART NO. DESCRIPTION 710-1044 Hex Bolt 3/8-24 x 1.5" Lg. 710-1270 Machine Screw 1/4” x 20 736-0524A Blade Bell Support 746-0883 Cable Housing w/o Throttle 742-0642 22" Blade 710-1667 Screw #10-16 x .625”...
  • Page 22 Model Series 520...
  • Page 23 Model Series 520 REF. REF. PART NO. DESCRIPTION PART NO. DESCRIPTION 720-0249 Hub Cap, Gray 749-0734B Lower Handle 738-0102 Front Axle Bolt 726-0240 Cable Tie 736-0504 Wave Washer (used w/ Ref. 4 only) 720-0276 Hand Knob 741-0484 Wheel Bearing (optional) 746-0843 Throttle Cable (optional) 634-0020...
  • Page 24 REF. REF. PART NO. DESCRIPTION PART NO. DESCRIPTION 732-0357A Extension Spring 1.12" Lg. 710-1062 Hex Bolt 1/4-20 x 1.25" Lg. 726-0329 L-Wash. 1/4" I.D. 618-0054 Lower Hsg. Half (Incl. Ref. 12) 618-0053 Upper Hsg. Half (Incl. Ref. 12) 741-0415 Flange Bearing .56 Dia. 717-0616A Shaft Ass’y.
  • Page 25 Engine Shrouds 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 731-1934 Charcoal Hardware: 710-1256 Hardware: 710-1256 Part No. Color Part No.
  • Page 26 NOTES:...
  • Page 28 MANUFACTURER’S LIMITED WARRANTY FOR: For TWO YEARS from the date of retail purchase Units exported out of the United States: MTD within the United States of America, its possessions PRODUCTS INC does not extend any warranty for and territories, MTD PRODUCTS INC will, at its products sold or exported outside of the United option, repair or replace, for the original purchaser, States of America, its possessions and territories,...

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