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Operator manual Illustrated parts list Wiring 12 pages 1.88MB Dated 1/10/61 Another scan of the above with figure 3 for the 701 missing 11 pages 1.64MB Model 401 Kohler spec number in details page is wrong - k91-41437A should be K91-31388A 551 Wiring revised pdf 1 page 288KB 701 Wiring revised pdf 1 page 340KB ID plates and serial numbers by CasualObserver 1961 Suburban - early used the top section of the 1960 plate, cut off and screwed to the hood stand. 1961 Suburban - later used a decal on the right frame rail ahead of the foot peg. Tractor drive belt for 401 and 551 #1569 - (4L x 28.95" or 1/2" x 28.95") Tractor drive belt for 701 #1576 replaced by 9691 - 1/2" x 70" ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Starter/Generator belt Original Wheel Horse 1583 nla Used on 6, 7, 8hp Kohler Starter generator {3Lx33" in belt charts is 3/8" x 33" but some applications use a shorter belt. Belt should have raw rubber sides for grip.} 3V315 Gates .38"x31.5" 3V315 Napa .38"x31.5" Kohler #231446 shown in the Kohler parts list Gates replacement 7330 - .410" x 33.58" with 36 degree angle. Replacement is notched with raw rubber sides Kohler #231605 Starter generator belt Replaces 232613 [.41"x32.08" 36 degree] PSB #061 Should use raw rubber edge belt for grip 7315 Gates .41"x32.08" 36 degree 25-7315 Napa .41"x32.08" 36 degree Small Block Kohler Napa # 25-7320 .41" wide x 32.5" long Side angle 36 degrees Cross section HC41 --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Ignition switch with 3 terminals for 550 is 3656 and nla. See PSB #069 Not documented - 1961 CBR-327 front mounted sickle bar mower for the 701 1 page of part number corrections 30.15KB Model 701 only model to use braces on the rear fenders because the tool box was short. 701 used Kohler K161S-28522E. Toro have the engine used as K161S-28622E as used on the 702 3 photos 463KB supplied by CasualObserver for dimensions. Brace not in the parts list. Lube chart SS Details & Attachments 2 pages 103.48KB 1961 model 401 1961 serial numbers that have shown up for the 401 42646 - Reported to be the first 401 42908 43062 43082 43380 43437 43755 43787 43810 43867 43950 43963 43975 44034 44506 44641 48188 49361 49925 49982 50023 50053 50181 50217 50930 - May be a 551 or 701 53101 53166 53217 56299 56547 56660 56806 - May be a 551 56870 56936 - May be a 551 57103 - May be a 551 60304 60315 60419 60436 60610 60695 60719 -------------------------------------------------------------------- 551 frame is 6" wide Details and attachments 2 pages 103.99KB 1961 model 551 1961 serial numbers that have shown up for the 551 41724 - May be a 701, misread or typo 46309 46412 46574 46630 46863 46891 46906 47115 49694 50930 - May be a 401 or 701 51705 52220 52596 53812 53882 53890 56806 - May be a 401 56936 - May be a 401 57103 - May be a 401 57322 58532 59014 59148 59745 [M] ---------------------------------------------------------------------- Details and attachments 3 pages 117.93KB 1961 model 701 1961 serial numbers that have shown up for the 701 41724 - May be a 551, misread or typo 45709 47457 47479 47676 47754 47770 47793 47969 48085 48110 48210 48226 48232 48234 48237 48289 48317 48358 48393 48411 48441 48584 48596 48684 48695 48723 48736 48773 48812 48832 - Model a guess 48852 48862 48939 48927 48967 48982 49022 49026 - Now decaled a 702 49116 49118 49122 50930 - May be a 401 or 551 51222 51337 51407 51434 51588 51630 51688 51691 51858 - Kohler K161S 51887 51908 51952 51967 52014 54100 54140 54157 54209 54276 54395 54480 54530 54545 54609 - Model and year a guess 54666 54695 54735 54817 54836 54867 54872 55082 55894 55895 55907 55939 55968 55978 56000 56015 56108 56141 56142 56193 56991 57012 57014 57078 57165 57222 57662 57673 57707 57720 57782 57797 57811 57834 57854 57888 58037 58048 58246 58351 58364 59247 59279 59309 59366 59382 59385 - Located in the UK 59479 59480 59520 59960 59963 59969 [M] To see the above in consecutive order go to