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YARD MACHINES
®
OPERATOR'S
MANUAL
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 attester 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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Table of Contents
Related Manuals for Yard Machines Series 230
Summary of Contents for Yard Machines Series 230
- Page 1 YARD MACHINES ® OPERATOR'S MANUAL 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-...
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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: Safe Operation
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... -
Page 4: Slope Operation
• Donotengage theself-propelled mechanism on • Always be sure of your footing. A slip and fall can units soequipped while starting e ngine. cause serious personal injury. If you feel you are losing your balance release blade control • Theblade control handle i s a safety device. Never handle immediately and the blade will stop in less attempt to bypass i tsoperation. -
Page 5: Your Responsibility
• Toreduce f irehazard, keep mower f reeof grass, After striking a foreign object, stop the engine, leaves, orother d ebris b uild-up. Clean upoilorfuel remove wire from spark plug, spillage. Allowmower t o coolat least 5 minutes thoroughly inspect the mower for any damage. - Page 6 USE THIS PAGE AS A GUIDE TO DETERMINE SLOPES WHERE YOU MAY NOT OPERATE SAFELY. SIGHT AND HOLD THIS LEVEL WITH A VERTICAL TREE i'<l A POWER POLE A CORNER OF A BUILDING ' .ii OR A FENCE POST "'" ,4 1_o ¢0 15°...
- Page 7 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.). Make sure the cables are straight and not crimped while removing loose parts or the unit from the carton. Cut along dotted lines and lay carton down flat.
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Page 8: All Units
Starter Handle Mounting Rope Height Bracket Adjuster Lever Guide Hairpin Clip Weld in Inner Hole Carria_ HandKnob Figure 5 HOW TO SET UP YOUR LAWN MOWER • Remove any packing material which may be between the upper and lower handles for shipping purposes. •... -
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) -
Page 10: Recoil Starter
SECTION 6: CONTROLS Blade Control Handle Control Drive Clutcl_ Sta'_t Handle Recoil Starter Figure 8 BLADECONTROLHANDLE 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: Cutting Height Adjustment
TO STOP ENGINE 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
An adjusting plateandthumbleverat eachfrontwheel p rovides cutting height a djustment. A singleleverneartheleft rearwheeladjusts bothrearwheelssimultaneously. Eachadjusting platehasnineheight p ositions. Height o fcutwill be changed whenthe thumbleveris moved fromoneposition to another. S imply depress the levertowards wheel andmovewheel a ndleverassembly t odesired position. SeeFigure 9. HANDLE HEIGHT ADJUSTMENT... -
Page 14: Maintenance
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 kind of work on lawn mower. ARNING: Always stop engine and disconnect spark plug wire before cleaning, lubricating or doing any 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 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 _L'_ Spacer Spdng...
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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 fellow 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
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: Shooting Guide
SECTION 11: TROUBLE SHOOTING GUIDE Trouble Corrective Actions Possible Cause(s) 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 See engine operator's manuai,...
- Page 21 Model Series 230 REF. PART NO. DESCRIPTION PART NO. DESCRIPTION 710-1044 710-1270 Machine Screw 1/4" x 20 Hex Bolt 3/8-24 x 1.5" Lg. 736-0524A 746-0883 Blade Bell Support Cable Housing w/o Throttle 742-0642 22" Blade 710-1667 Screw #10-16 x .625"...
- Page 22 Model Series 520 \ 75 See engine 81_7778 manual. 8786 8L--__,...
- Page 23 Model Series 520 REF. PART NO. DESCRIPTION PART NO. DESCRIPTION 720-0249 749-0734B Lower Handle Hub Cap, Gray 738-0102 Front Axle Bolt 726-0240 Cable Tie 736-0504 720-0276 Hand Knob Wave Washer (used w/Ref. 4 only) 741-0484 746-0843 Wheel Bearing (optional) Throttle Cable (optional) 634-0020 Front Wheel 8"...
- Page 24 .5\ 2\ .... _--20 "__17 REF. DESCRIPTION PART NO. DESCRIPTION PART NO. 710-1062 Hex Bolt 1/4-20 x 1,25" Lg, 732-0357A Extension Spring 1,12" 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, 713-0400...
- 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: Y . c.,.esj[f 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 and territories, MTD PRODUCTS INC will, at its products sold or exported outside of the United...