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MTD series 620 Parts Manual

Hydrostatic lawn tractor
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ILLUSTRATED PARTS
MANUAL
Hydrostatic Lawn Tractor — Model Series 620
IMPORTANT
READ SAFETY RULES AND INSTRUCTIONS CAREFULLY BEFORE OPERATION
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.
FORM NO. 769-02978
PRINTED IN U.S.A.
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019
03/8/2007

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Summary of Contents for MTD series 620

  • Page 1 (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. FORM NO. 769-02978 PRINTED IN U.S.A. MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019 03/8/2007...
  • Page 2 Model Series 620...
  • Page 3: Illustrated Parts List

    Illustrated Parts List Ref. Part No. Description Ref. Part No. Description 710-0726 Screw, 5/16-12 x .750 736-0176 Flat Washer, .265 x .938 x 1.20 710-0599 Self-tapping Screw, 1/4-20 x.5 747-1196 Brake/Cruise Pivot Rod 710-0751 Hex Cap Screw, 1/4-20 x.62 629-04083A* Headlight Wire Harness 746-04365 Throttle Control/Cable...
  • Page 4 Model Series 620...
  • Page 5 Illustrated Parts List Ref. Part No. Description Ref. Part No. Description 710-0227 Screw, #8-18 x.500 731-1993A Cover w/ Cup Holder 683-04301 Lift Shaft Assembly 710-0451 Carriage Bolt, 5/16-18 x.750 736-0204 Washer, Flat, .344 x .62 x .033 710-0604A Self-tapping Screw, 5/16-18 x.625 736-0607 Lock Washer, 5/16 710-0895...
  • Page 6 Model Series 620...
  • Page 7 Illustrated Parts List Ref. Part No. Description Ref. Part No. Description 710-04095 Hex Screw, 3/8-16, 1.00, Gr5 783-0727D Pivot Bracket, Support LH 710-0514 Hex Screw, 3/8-16, 1.00, Gr5 783-0728B Pivot Bracket, Bar 710-0643 Hex Screw, 5/16-18, 1.00, Gr5 631-04008A Steering Wheel, 13.25 711-1408 Link, Drag, RH 731-04039...
  • Page 8 Model Series 620...
  • Page 9 Illustrated REF. PART NO. DESCRIPTION REF. PART NO. DESCRIPTION Parts List 17840 Transmission Mounting Bracket 747-04139 Brake Rod 618-04228 Wheel Hub Assembly 747-1149 Bypass Rod 618-04270A Hydrostatic Transmission 747-1151 Control Rod 629-04124* Harness Assembly 748-0334 Transaxle Spacer 710-0227 AB Screw #8-18 x 0.375 750-0566A Spacer,.260 x.372 x 1.030 Lg.
  • Page 10: Parts List

    Illustrated Model Series 620 Parts List To order replacement parts, call the Customer Service Line at 1-800-800-7310 or visit www.mtdproducts.com...
  • Page 11 Illustrated Ref. Part No. Description Ref. Part No. Description Parts List 710-1260A Screw, 5/16-18 x 0.75 712-04064 Nut, Flange Lock, 1/4-20 710-3011 Screw, 3/8-16, 2.25, Gr5 783-0693 Axle Bracket 710-04379A Screw, 7/16-20, 3.50, Gr5, Lock 732-04035 Spring, Compress., 1.28 x 3.125 712-04065 Nut, Flange Lock, 3/8-16 736-0222...
  • Page 12 0” Electric PTO Deck...
  • Page 13 Illustrated Parts List Ref. Part No. Description Ref. Part No. Description 732-0306A Spring, Compression, .531 x 1.75 16606 Hook, Retainer 732-0459B Spring, Extension, .94 x 6.74 618-04126A Spindle Assembly 732-0934 Spring, Extension, 1.5 x 5.99 683-0254B Hanger Bracket Assembly 734-04155 Deck Wheel, 5.0 683-04075 Weldment, 50-inch Deck...
  • Page 14 4” Electric PTO Deck...
  • Page 15 Illustrated Ref. Part No. Description Ref. Part No. Description Parts List 16606 Hook, Retainer Bracket 721-04041 Hose Coupler 618-04125A Spindle Assembly 731-3005 Front Roller 683-0254B Hanger Bracket Assembly 732-0306A Spring,.531OD x 1.75 683-04180 54” Deck Weldment 732-04247 Spring, Ext.,.850 Dia. x 6.415 683-04182 Idler Arm Assembly 732-0934...
  • Page 16 Illustrated Kohler Twin Cylinder Engine Parts List For Choke To order replacement parts, call the Customer Service Line at 1-800-800-7310 or visit www.mtdproducts.com Ref. Part No. Description Ref. Part No. Description 751-0564B Muffler Deflector 710-0227 AB Screw #8-18 x 0.5 751-0644B LH Exhaust Pipe 710-0599...
  • Page 18 NOTES Use this page to make notes and write down important information.
  • Page 19 NOTES Use this page to make notes and write down important information.
  • Page 20 MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019...