Yard Machines 520 Series Operator'S Manual Download Page 1 | Manualshive

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Summary of Contents for 520 Series

Page 1: ... 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 auth...

Page 2: ...like I XXX X XXX X XXX XXXXXXXXXXX I _MTD PRODUCTS INC P o Box3B8022 CLEVELAND OHIO 44136 This is where your model number will be This is where your serial number will be Copy the model number here Copy the serial number here Figure 1 SECTION 2 CALLING CUSTOMER SUPPORT LOCATE YOUR MODEL NUMBER AND SERIAL NUMBER Record this information in the space provided To find your unit s specific model number...

Page 3: ... pets Stop engine when they are in the vicinity of your mower to help prevent blade contact or thrown object injury Although the area of operation should be completely cleared of foreign objects an object may have been overlooked and could be accidentally thrown by the mower in any direction and cause serious personal injury to the operator or any others allowed in the area Wear sturdy rough soled...

Page 4: ... could result DO Mow across the face of slopes never up and down Exercise extreme caution when changing direction on slopes Watch for holes ruts hidden objects or bumps Tall grass can hide obstacles Always be sure of your footing A slip and fall can cause serious personal injury If you feel you are losing your balance release the blade control handle immediately and the blade will stop in less tha...

Page 5: ...ine remove the wire from the spark plug and thoroughly inspect the mower for any damage Repair the damage before starting and operating the mower Never attempt to make a wheel or cutting height adjustment while the engine is running Grass catcher components are subject to wear damage and deterioration which could expose moving parts or allow objects to be thrown For safety protection frequently ch...

Page 6: ...s with a slope in excess of 15 degrees a rise of approximately 2 1 2 feet every 10 feet A riding mower could overturn and cause serious injury If operating a walk behind mower on such a slope it is extremely difficult to maintain your footing and you could slip resulting in serious injury Operate RIDING mowers up and down slopes never across the face of slopes Operate WALK BEHIND mowers across the...

Page 7: ... up your lawn mower disconnect the spark plug wire from the spark plug and ground it against the engine See Figure 3 Spark Plug Wire Figure 3 This operator s manual covers various mower models Follow instructions which pertain to your unit only IMPORTANT This unit is shipped without gasoline or oil in the engine Be certain to service engine with gasoline and oil before operating your mower NOTE Ta...

Page 8: ...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 ALL UNITS Remove the hairpin clips from the outer hole in the weld pins on the handle mounting brackets Using a pair of pliers squeeze one leg of the lower handle against the handle mounting bracket Insert t...

Page 9: ...l The part number for the mulch kit is OEM 190 115 and can be acquired through your local MTD retailer service center or by calling 800 800 7310 If your mower is already equipped with a mulching baffle install as follows DCheUtc_ or Mulching 4 Baffle Notches Figure 7 Lift the chute deflector on the mower Slide the notches in the bottom of the mulching baffle over the lip of the discharge opening S...

Page 10: ... on the left side of the upper handle It is used to regulate engine speed The throttle control is located on the engine It is used to regulate engine speed The engine is equipped with a constant speed throttle which is set at full throttle for maximum engine and cutting performance WARNING The throttle control can not be used to stop the engine If your throttle control is located on the engine do ...

Page 11: ...ard It should move freely Pull mower backward It should move with only a small amount of resistance If the rear wheels tend to lock up the clutch may not be releasing completely Do not start the engine until corrections have been made Check the control cable for severe bend kinks or binding or grass build up around the belt Correct and adjust as required Refer to instructions under Drive Clutch Co...

Page 12: ...The best mowing pattern is one that allows the clippings to discharge towards the uncut part of the lawn This permits recutting of the clippings to further pulverize them When cutting high weeds discharge towards the cut portion then recut at right angles to first direction For a healthy lawn always cut off one third or less of the total length of the grass Lawn should be cut in the fall as long a...

Page 13: ... it from the mower Notch Figure 10 Turn the lower handle around so the notches on the bottom of the lower handle are facing forward as shown in Figure 10 Reassemble placing the bottom holes in the handle over the weld pins in the handle mounting bracket Reassemble the upper handle Place the hairpin clips in the inner holes in the weld pins and attach the starter rope as instructed in the Set Up In...

Page 14: ...ot be achieved in the previous step unhook the Z end of the spring from lower hole and insert into the higher adjustment hole Check the spring length as instructed in step one Tighten Adjustment Wheel Adjustment Hole Cable Bracket Z End of Cable In Lower Hole Loosen Style 1 Style 2 Figure 11 CARBURETOR ADJUSTMENTS _1 WARNING If any adjustments are made to the engine while the engine is running e g...

Page 15: ...8 _ ARNING Be sure to disconnect and ground the spark plug wire before performing any repairs or maintenance CUTTING BLADE _ ARNING Periodically inspect the blade adapter for cracks especially if you strike a foreign object Replace when necessary When removing the cutting blade for sharpening or replacement protect hands by using heavy gloves or a rag to grasp the cutting blade Sharpening Blade Fo...

Page 16: ...l support and insert the hex bolt through the blade assembly Refer to Figure 14 for the correct order of assembly Tighten the hex bolt according to the blade mounting torque mentioned below BLADE MOUNTING TORQUE Center Bolt 450 in tbs min 600 in Ibs max To ensure safe operation of your unit all nuts and bolts must be checked periodically for correct tightness DECK The underside of the mower deck s...

Page 17: ...in to remove all grass dirt and combustible debris from muffler area BELT REPLACEMENT Disconnect the spark plug wire and ground it against the engine Drain the fuel tank or place a piece of plastic beneath the cap to prevent gasoline leakage Remove the transmission belt cover by removing the three bolts See Figure 15 Tip the mower back on its side with the air filter side away from the ground Bloc...

Page 18: ...ver is approximately 1 8 away from the belt Also make sure to tighten all nuts and bolts securely If you had put plastic under the gas cap before tipping the unit remove it now SECTION 10 OFF SEASON STORAGE The following steps should be taken to prepare lawn mower for storage Clean and lubricate the mower thoroughly as described in the lubrication instructions Refer to separate engine manual for c...

Page 19: ...ty days unless a fuel stabilizer is added Clear vent or threads or replace Drain fuel tank Refill with fresh fuel Refer to the engine manual packed with your unit Refer to the engine manual packed with your unit Fill crankcase with proper oil Refer to the engine manual packed with your unit Stop engine and disconnect spark plug wire Remove blower housing and clean Refer to the engine manual packed...

Page 20: ...Model Series 230 63 68 52 61 51 See engine operator s manuai 83_ 44 43 31 30 29 Z 49 36 33 28 27 101 1 88 18 17 03 15 2 13 20 ...

Page 21: ...Grip Spacer 513 I D x 703 FI Wash 531 I D x 93 Bell Wash 1 4 I D Hex Bolt 1 4 20 x 62 Lg Grade 5 Hex L Nut 1 4 20 Thd REF NO 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 PART NO 710 1270 746 0883 710 1667 731 1059 731 1058 746 0710A 731 1057 731 0620 720 0294 749 0539C 747 0824 746 0...

Page 22: ...Model Series 520 67 72 64 63 105 6O 58 65 73 74 75 76 81_7778 8786 8L __ 55 54 36 46 O_ See engine manual 93 30 98 26 3 2 4 13 22 ...

Page 23: ...8 Chain 1 2 Pitch x 52 Links Carriage Bolt 5 16 18 x 62 Bell Washer 1 4 I D Hex TT Tap Screwl 4 2Ox 5 Adapter Plate Hinge Pin internal Cotter Pin 5 16 Dia 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 8O 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 PART NO 749 0734B 726 0240 720 0276 746 0843 746 0876 736 0501 712 0324 710 1270 746 0883 646 0875 647 000...

Page 24: ...18 11 Tooth Helical Gear 37 721 0325 Flange Bearing 38 710 0653 Oil Seal 39 710 0599 FI Pulley 5 06 1 D 40 710 0896 Bell Wash 265 I D x 75 41 712 0287 Hex Nut 1 4 28 LH Thd 42 736 0270 Shld Spacer 375 Dia x 170 43 736 0329 Shld Bolt 375 Dia x 40 44 746 0710A Fl ldler Plastic 1 50 Dia IncLRef 22 45 747 0549 Needle Brg 375 x 375 46 782 7569 Idler Brk t Ass y 47 17064 Hex Patch L Nut 1 4 28 Thd 717 0...

Page 25: ...art No Color 731 1395A Red 731 1396A Black 731 1397A Gray Hardware 710 1256 Part No Color 731 1586B Black 731 1612A Red Hardware 7510042823 Part No Color 751B281451 Gray Hardware 710 1256 Screw Part No Color 731 1402A Yellow 731 1694 Black 731 1695 Silver 731 1934 Charcoal Hardware 710 1256 Part No Color 7510143208 Black Hardware 7510042823 Part No Color 751B281476 Black 751B281777 Yellow Hardware...

Page 26: ...NOTES 26 ...

Page 27: ...27 ...

Page 28: ...pport Department of MTD PRODUCTS INC Transportation charges Transportation charges for the movement of any power equipment unit or attachment are the responsibility of the purchaser Units exported out of the United States MTD PRODUCTS INC does not extend any warranty for products sold or exported outside of the United States of America its possessions and territories except those sold through MTD ...

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