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O
M
PERATOR'S
ANUAL
Model Series
230 and 520
22" SELF-PROPELLED
ROTARY MOWERS
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.770-8559A
11/97
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Table of Contents
Related Manuals for Yard Machines 230 Series
Summary of Contents for Yard Machines 230 Series
- Page 1 PERATOR’S ANUAL Model Series 230 and 520 22" SELF-PROPELLED ROTARY MOWERS 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).
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Page 2: Section 1: 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 YOUR LAWN MOWER. FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY. -
Page 3: Slope Operation
• Do not engage the self-propelled mechanism on units so equipped while starting engine. • The blade control handle is a safety device. Never attempt to bypass its operation. Doing so makes the safety device inoperative and may result in personal injury through contact with the rotating blade. - Page 4 • To reduce fire hazard, keep mower free of grass, leaves, or other debris build-up. Clean up oil or fuel spillage. Allow mower to cool at least 5 minutes before storing. • Before cleaning, repairing, or inspecting, make certain the blade and all moving parts have stopped.
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Page 5: Section 2: Finding Your Model Number
SECTION 2: FINDING YOUR MODEL NUMBER This Operator’s Manual is an important part of your new walk behind. It will help you assemble, prepare and maintain your walk behind. Please read and understand what it says. Before you start to prepare your walk behind for its first use, please locate the model plate and copy the information from it in this Operator’s Manual. - Page 6 Slope Gauge...
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Page 7: Section 4: Unpacking
SECTION 4: UNPACKING To removing unit from carton 1. Remove staples, break glue on top flaps, or cut tape at carton end and peel along top flap to open carton. 2. Remove loose parts if included with unit (i.e., owner's manual, etc.). 3. -
Page 8: How To Set Up Your Lawn Mower
Make sure that the carriage bolts are seated properly into the handle. NOTE: FOR 230 SERIES 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: Section 5: Controls
1. Lift the chute deflector on the mower. Slide the notches in the bottom of the mulching baffle over the lip of the discharge opening. See Figure 6. 2. Push the hooks on the top of the baffle until they snap over the hinge on the discharge chute. -
Page 10: Section 6: Operation
SECTION 6: OPERATION WARNING: Keep hands and feet away from the chute area on cutting deck. See Figure 1 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 11: Section 7: Adjustments
See Figure 9. HANDLE HEIGHT ADJUSTMENT Adjustment (230 series mowers only) Lever Your mower is shipped with the handle in the higher height position. To lower the handle height, proceed as follows. - Page 12 Lower Handle Figure 10 4. Turn the lower handle around so the notches on the bottom of the lower handle are facing forward as shown in Figure 10. 5. Reassemble, placing the bottom holes in the handle over the weld pins in the handle mounting bracket.
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Page 13: Throttle Control Adjustment
THROTTLE CONTROL ADJUSTMENT If the throttle control requires adjustment or if it has been replaced and need adjustment, proceed as follows: Screw Cable Clamp Control Lever Figure 12 1. Remove the screw shown in Figure 12. Remove the cable clamp from the cable. NOTE: If you have a Tecumseh engine, simply loosen the screw so the cable will move freely... -
Page 14: Cutting Blade
Transmission The transmission is pre-lubricated and sealed at the factory. does require disassembled for any reason, fill with 2 ounces of Alvania grease, part number 737-0168. WARNING: Be sure to disconnect and ground spark performing any repairs or maintenance. NOTE: When tipping the unit, empty the fuel tank and keep engine spark plug side up. -
Page 15: Blade Mounting Torque
BLADE MOUNTING TORQUE Center Bolt: 450 in. lbs. min., 600 in. lbs. max.; Blade Adapter Bolts (if applicable): 200 in. lbs. min., 350 in. lbs. max. To ensure safe operation of your unit, all nuts and bolts must be checked periodically for correct tightness. -
Page 16: Section 9: Off-Season Storage
7. Remove the belt from between the idler pulley and the belt guard on the idler pulley bracket. 8. Remove the belt from the transmission pulley. 9. Push the idler pulley up and out of the way. See Figure 18. 10. -
Page 17: Section 10: Trouble Shooting Guide
SECTION 10: TROUBLE SHOOTING GUIDE Trouble Possible Cause(s) Engine fails to Blade control handle disengaged. start Spark plug wire disconnected. Dirty aircleaner. Primer button not depressed. Throttle control lever not in correct starting position (if so equipped). Fuel tank empty or stale fuel. Blocked fuel line (if so equipped). - Page 18 Model Series 230...
- Page 19 Model Series 230 REF. PART NO. 747-0824 Control Handle Ass’y. (Std.) 720-0225 Foam Grip (2 Req’d.) 720-0226 Foam Grip (1 Req’d.) (Optional) 746-0876 Throttle Lever 710-0605 Oval C-Sunk Scr. 712-0324 Hex L-Nut 1/4-20 Thd. 736-0501 Spr. Wash. .66" I.D. 646-0875...
- Page 20 REF. PART NO. 710-0841 Fl-”C”-Sunk Hd. Tap Scr. #10 x .75" Lg. 736-0356 Bell Wash. .39 I.D. x 1.38 O.D. 711-0805 Shld. Pin 3/8-24 x 1.43" Lg. 712-0711 Hex Jam Nut 3/8-24 Thd. 736-0270 Bell Washer .265 ID x .75 131 710-0751 Cap Screw HH 1/4-20 x .620 133 748-0318...
- Page 21 Model Series 230 and 520 REF. PART NO. 710-1062 Hex Bolt 1/4-20 x 1.25" Lg. 726-0329 L-Wash. 1/4" I.D. 618-0053 Upper Hsg. Half (Incl. Ref. 12) 713-0400 #48 Sprocket 7 Tooth x 1/2 Pitch 736-0336 Fl-Wash. 5/8" I.D. x .030 741-0413 Hex Flange Brg.
- Page 22 Model Series 520 †Optional Hub Caps Description Gray (3-1/2” Dia.) Black (4-1/4” Dia.) Gray (4-1/4” Dia.) Gray (5-1/2” Dia.) ** Front Wheel Chart Size Tread Type 8” x 1.75” Bar Tread 8” x 1.75” “T” Tread 8” x 2” “S” Wave Part No.
- Page 23 Model Series 520 REF. PART NO. 647-0004 Control Handle Ass’y. (Deluxe) 747-0824 Control Handle Ass’y. (Std.) 720-0225 Foam Grip (Optional) 749-0539B Upper Handle 710-0605 Oval C-Sunk Scr. 646-0875 Throttle Body 746-0550 Control Cable—39" Lg. 736-0501 Spring Wash. .66" I.D. 712-0324 Hex L-Nut 1/4-20 Thd.
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Page 24: Shroud Chart
Part No. Color Part No. 751B281439 Dark Red 731-1395A 751B281440 Black 731-1396A 751B281443 Bright Red 731-1397A Hardware: Hardware: 710-1256 (Screw) 710-1256 (Screw) Part No. Color Part No. 731-1402A Yellow 7510143208 731-1694 Black 731-1695 Silver 731-1934 Charcoal Hardware: Hardware: 710-1258 (Screw) 7510042823 (Screw) Part No. - Page 25 NOTES...
- Page 26 NOTES...
- Page 28 MANUFACTURER’S LIMITED WARRANTY FOR: For TWO YEARS from the date of retail purchase within the United States of America, its possessions and territories, MTD PRODUCTS INC will, at its option, repair or replace, for the original purchaser, free of charge, any part or parts found to be defective in material or workmanship.