MTD 520 Series Operator's Manual

OPERATOR’S MANUAL IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019 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 361131 Cleveland, Ohio 44136-0019. PRINTED IN U.S.A. FORM NO. 770-10349B.fm (11/01)

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Ref. No. Part No. Part Description 1. 747-1214 Drive Control Handle 2. 747-1161A Blade Control Handle 3. 746-1113 Blade Control Cable - B&S 746-1132 Blade Control Cable - B&S 746-1114 Blade Control Cable- Tec 4. 746-1092A Drive Control Cable 5. 749-1092A Upper Handle 6. 710-1205 Eye Bolt 7. 720-0279 Wing Nut 1/4-20 8. 712-0324 Hex Lock Nut 1/4-20 9. 710-0606 Hex Cap Screw 1/4-20x 1.5 10. 710-1174 Carriage Bolt 5/16-18 x 2.0 11. 736-0451 Shoulder Washer .320 ID x .93 OD 12. 720-0284 Wing Nut 13. 749-1093B Lower Handle 14. 725-0157 Cable Tie 15. 782-9065 Hinge Clip 16. 731-2280 Trail Shield 17. 710-0896 Hex Screw 1/4-14 x .625 18. 682-3062A Handle Bracket Assembly - RH 19. 736-3050 Flat Washer .406 ID x .812 OD 20. 712-0431 Lock Nut 3/8-16 21. 682-3063A Handle Bracket Assembly- LH 22. 682-0096 Deck Assembly 22” 682-0110 Deck Assembly 22” (No Sprigs) 23. 782-9063 Engine Belt Keeper Bracket 24. 710-0654A Hex Washer Screw 3/8-16 x 1.0 25. 712-0240 Jam Nut 7/16-20 26. 736-0407 Bell Washer .45 ID x 1.00 OD 27. 756-1167 Pulley 28. 754-0483 V-Belt 29. 710-1276 Hex Washer Screw 1/4-20 x .750 30. 782-9062 Transmission Belt Keeper Bracket 31. 732-0992 Compression Spring 32. 782-0585 Forward Height Adjustment Plate - LH 33. 728-0199 Rivet 34. 750-1209 Sleeve Spacer .550 ID x 2.5 35. 716-0198 Retainer Ring 36. 618-0391A Transmission Assembly 37. 750-1210 Sleeve Spacer .550 ID x 8.9 38. 731-0073 Transmission Cover 39. 756-1163 Drive Pulley 40. 748-0426 Blade Adapter 41. 742-0642A Blade 22” 742-0742A Mulching Blade 22” 42. 736-0452 Bell Washer .396 ID x 1.140 OD 43. 710-1044 Hex Cap Screw 3/8-24 x 1.5 44. 782-0584 Forward Height Adjustment Plate - RH 45. 741-0710 Sleeve Bearing 46. 710-0216 Hex Cap Screw 3/8-16 x .75 47. 720-0426 Adjustment Knob 48. 682-0544 Spring Lever Assembly - LH (FWD) 682-0545 Spring Lever Assembly - RH (FWD) 49. 731-2522 Wheel Dust Cover 50. 715-0221 Pin 51. 717-1761 Spur Gear 14T - LH 717-1762 Spur Gear 14T - RH 52. 736-0105 Bell Washer .401 ID x .870 OD 53. 634-0190 Front Wheel Assembly 8 x 1.8 54. 738-1168 Shoulder Screw 3/8 55. 747-0710 Hinge Pin 56. 732-1014 Torsion Spring 57. 631-0098 Mulching Baffle (If Equipped) 58. 731-1034B Side Discharge Assembly 59. 736-0270 Bell Washer .265 ID x .75 OD 60. 731-1035B Chute Hinge 61. 710-0216 Hex Cap Screw 3/8-16 x .75 62. 741-0717 Thrust Bearing .688 ID x 1.938 OD 63. 732-0984B Spring Lever 64. 682-0093 Rear Pivot Arm Assembly 65. 738-1127 Shoulder Screw 3/8-16 66. 736-0182 Spring Washer 67. 734-1864 Rear Wheel Assembly 14 x 1.8 68. 731-2230 Snap Discharge Chute (If Equipped) 69. 731-1386D Snap Mulching Plug (If Equipped) 70. 748-0390 Bearing Spacer 71. 716-0865 Snap Ring .500 72. 736-0105 Washer Spacer .401 ID x .870 OD 73. 712-0130 Hex Lock Nut 3/8-16 Ref. No. Part No. Part Description

Ref. No. Part No. Part Description 1. 618-0392 Upper Housing Assembly 2. 721-0329 Oil Seal .500 ID x .687 OD 3. 741-0673 Flange Bearing .503 ID x .689 OD 4. 736-0520 Flat Washer .504 ID x .700 OD x .030 736-0711 Flat Washer .504 ID x .700 OD x .035 736-0712 Flat Washer .504 ID x .700 OD x .040 736-0713 Flat Washer .504 ID x .700 OD x .045 5. 717-1596 Bevel Gear 44T 6. 715-0139 Roll Pin 7. 711-1595 Output Shaft 8. 719-0538 Lower Housing 9. 710-1276 Hex Washer Screw 1/4-20 x .75 10. 716-0231 E-Ring .750 11. 736-0336 Flat Washer .625 ID x 1.0 OD x .030 736-0337 Flat Washer .625 ID x 1.0 OD 736-0349 Flat Washer .63 ID x 1.0 OD x .020 736-0494 Flat Washer .632 ID x 1.0 OD x .035 736-0495 Flat Washer .632 ID x 1.0 OD x .035 12. 741-0735 Needle Bearing .625 x .813 13. 719-0537 Upper Housing 14. 736-0336 Flat Washer .625 ID x 1.0 OD x .030 736-0494 Flat Washer .632 ID x 1.0 OD x .035 15. 711-1390 Input Shaft 1 2 3 4 5 6 3 7 8 2 9 10 11 12 13 14 15

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 two (2) years commencing on the date of original purchase and will, at its option, repair or replace, free of charge, any part found to be defective in materials or workmanship. This limited warranty shall only apply if this product has been operated and maintained in accordance with the Operator’s Manual furnished with the product, and has not been subject to misuse, abuse, commercial use, neglect, accident, improper maintenance, alteration, vandalism, theft, fire, water, or damage because of other peril or natural disaster. Damage resulting from the installation or use of any acces- sory or attachment not approved by MTD LLC for use with the product(s) covered by this manual will void your warranty as to any resulting damage. Normal wear parts or components thereof are subject to sep- arate terms as follows: All normal wear parts or component failures will be covered on the product for a period of 90 days regardless of cause. After 90 days, but within the two year period, normal wear part failures will be covered ONLY IF caused by defects in materials or workmanship of OTHER component parts. Normal wear parts and components include, but are not limited to: batteries, belts, blades, blade adapters, grass bags, rider deck wheels, seats, snow thrower skid shoes, shave plates, auger spiral rubber, tires. HOW TO OBTAIN SERVICE: Warranty service is available, WITH PROOF OF PURCHASE, through your local autho- rized service dealer. To locate the dealer in your area, check your Yellow Pages, or contact MTD LLC at P.O. Box 361131, Cleveland, Ohio 44136-0019, 1-800-800-7310, 1-330-220- 4683 or log on to our Web site at www.mtdproducts.com. This limited warranty does not provide coverage in the follow- ing cases: a. The engine or component parts thereof. These items carry a separate manufacturer’s warranty. Refer to the applicable manufacturer’s warranty for terms and condi- tions. b. Log splitter pumps, valves, and cylinders have a sepa- rate one year warranty. c. Routine maintenance items such as lubricants, filters, blade sharpening, tune-ups, brake adjustments, clutch adjustments, deck adjustments, and normal deterioration of the exterior finish due to use or exposure. d. MTD LLC does not extend any warranty for products sold or exported outside of the United States, its posses- sions and territories, except those sold through MTD LLC’s authorized channels of export distribution. e. Parts that are not genuine MTD parts are not covered by this warranty. f. Service completed by someone other than an authorized service dealer is not covered by this warranty. g. Transportation charges and service calls are not covered. No implied warranty, including any implied warranty of merchantability of fitness for a particular purpose, applies after the applicable period of express written warranty above as to the parts as identified. No other express warranty, whether written or oral, except as mentioned above, given by any person or entity, includ- ing a dealer or retailer, with respect to any product, shall bind MTD LLC. During the period of the warranty, the exclusive remedy is repair or replacement of the product as set forth above. The provisions as set forth in this warranty provide the sole and exclusive remedy arising from the sale. MTD LLC shall not be liable for incidental or consequential loss or damage including, without limitation, expenses incurred for substitute or replacement lawn care ser- vices or for rental expenses to temporarily replace a war- ranted product. Some states do not allow the exclusion or limitation of inci- dental or consequential damages, or limitations on how long an implied warranty lasts, so the above exclusions or limita- tions may not apply to you. In no event shall recovery of any kind be greater than the amount of the purchase price of the product sold. Alteration of safety features of the product shall void this warranty. You assume the risk and liability for loss, damage, or injury to you and your property and/or to others and their property arising out of the misuse or inability to use the product. This limited warranty shall not extend to anyone other than the original purchaser or to the person for whom it was pur- chased as a gift. HOW STATE LAW RELATES TO THIS WARRANTY: This limited warranty gives you specific legal rights, and you may also have other rights which vary from state to state. MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019 1-800-800-7310