MASSEY FERGUSON MF 41 MOWER Parts Manual 651241M94

~~~~~~~-------------------------------------~ PARTS BOOK 1M .= I Massey Ferguson CENTRAL PARTS OPE RATION -RACINE fORM NO. 651 241 M94

GENERAL INFORMATION THIS BOOK IS PRINTED IN TWO SECTIONS. THE FIRST SECTION CON. TAINS A PICTORIAL AND A GROUP INDEX PI. US A NUMERICAL INDEX OF ALL PART NUMBERS INCLUDED IN THIS BOOK. THE PAGES IN THIS SECTION ARE NUMBERED WITH ROMAN NUMERALS. THE SECOND SECTION INCLUDES A PART NUMBER LISTING REFERENCED TO ITEM NUMBERS ON THE ILLUSTRATED PAGE DIRECTLY OPPOSITE. PAGES IN THIS SECTION ARE NUMBERED WITH ARABIC NUMERALS. THE PAGE NUMBERS APPEAR IN THE UPPER OUTER CORNER OF THE PAGE. PARTS BOOK NUMBER AND DATE APPEAR IN THE LOWER RIGHT HAND CORNER OF THE PAGE. THE PART NUMBER LISTING PAGE WII.L ALSO CARRY THE :\IA· CHINE NAME TO ASSIST IN IDENTIFYING THE MACHINE TO WHICH THE PAHTS BOOK APPLIES. WHEN CHA;\JGES TO THE MACH:INE MAKE IT NECESSARY. I{EVISED PA(;ES FOR THIS BOOK WJI.I. BE ISSUED. THE REVISED PAGES \X'ILI. BE ISSUED WITII THE SAME PAGE NUMBER AS THOSE THEY REPI.ACE AND THE "ISSUE" :\:lL\IBER AND DATE WILL BE ADVA;\JCED. NEW PA<;ES WILl. CARRY A~ EXISTING PAGE NUMBER WITH AN ALPHABETICAL SUFFIX. FROM TIME TO TIME CHANGE INFORMATION WILl. BE ISSlIEJ) IN TlfE FORM o.F A "PARTS RELEASE AND CHANGE BlTLI.ETIN"'. INfOJ{j\.IATIO~ FRO:\! THESE BULLETINS SHOUI.D BE ENTERED IN THE PROPER PAGES AS SCl()~ AS THE BULLETINS ARE RECEIVED. WHENEVER A PAGE OF THIS nOOK IS RE·ISSUEI>. THE Clll{){E:\'T PA(;E LISTING WILL ALSO BE RE-ISSUED. THIS L1STI:'\l'(; \'('ILI. SHO\'(' THE ISSUE ~l"\! BER AND DATE OF ISSUE OF EACH PAGE AS A CHECK SHEET CO\'ERING TilE ENTIRE BOOK. IT IS IMPERATIVE THAT REVISED PARTS BOOK PAGES BE I!\!SERTFD I:\:TO THEIR RESPECTIVE PARTS BOOKS AS SOO!\! AS RECEIVED. fAILlIRE TO DO SO WII.1. LEAD TO CONFUSION A:'\l'D DEFEAT TilE PURPOSE OF TilE BOOK. INDE~TED PARTS I;\J TilE DESCRIPTIVE UST AHE A PART OF TilE PRECED· ING ASSE:\1BI.Y Of SUB-ASSE:\1BI.Y. THE QUANTITY SHO\\':,\ 1:,\ TIn. ":'\U~1BFH HEQl'IJ{ED" COLU:'.!!\! IS TIIF NUl\1BFR OF PARTS lJSEJ) ON A :\I:\CIfINF EXCEIY]' \\,HERE PARTS ARE I:\:I>E;'I.;TFI> IN DESCRIPTI\'E LIST. IN THIS C,\SE THE QLJA:,\TITY SHO\X':\: IS TlIF :'\U~mFH REQUIHED FOR THE PRECEDI:'I.!C ASSEMBLY OJ{ SlIB·ASSE,\1BI.Y. FOR CERTAIN PARTS SUCII AS BOLTS. Al'TS. \\'ASIIFRS. SlI/\lS. ETC. .\:'\ "X"' WILL BE SIIO\'(':,\: 1\1 THE ":'\UMBI~H REQlIIHEn" COl.llMi':. THIS "X" 1:'\1)1· CATES THAT THE Qlf.\:'\TlTY TO HF VSFIl IS "AS HEQlIlHFJ)··. ALWAYS CHECK JI.I.USTRATIOA ;lAI) \:l'\IHEI{ I.ISTI:,\(; P.\{;E BEH)IU: Ol{· DERING. NEVER ORDER rH():\! II.LVSTR.\TlO:\: AI.O:,\F. R 5C 9/82 w/79-10, 80-54, 81-1 Printed in U.S.A. 238 12C - 1/78

FOREWORD Massey Ferguson EQUIPMENT IS DESIGNED AND BUILT FOR MAXIMUM PERFORMANCE AND LONG LIFE. All SERVICE PARTS ARE MANUFACTURED WITH THE SAME CARE AND PRECISION EXERCISED IN PRODUCT- ION. STOCK AND SELL ONLY Massey Ferguson PARTS

II GROUP INDEX Page Clutch, Sprag ............................................. 11 CutterBars ......................................... 19,21,23 Drag Bar ..... . . .. . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . .. . . . . .. 5 Dyna Balance Drive ......................................... 7 Frames.. .. ................................................ 3 Hay Conditioner Hitch ..................................... 17 Hitch Pins ................................................. 3 Knife Assembly ...................................... 19,21,23 Position Stop Kit ......................................... 25 Pulleys, Dyna Balance Drive ................................ 9 P.T.O. Shafts ....................................... 11,13,15 Riveting Tool ................................ ,. ..... . ..... 25 Rod Lift .... , ............................................ " 3 Shields. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Shoes. . . . . . . . . . . .. .. .. . . . . . . . . .. .. . . . . . . . .. .. ... ......... 25 Swathboard ................................................ 25 Printed in U.S.A. 80-54 MF 41 MOWER 651 241 M94 (Issue 2) 5/80

III NUMERICAL INDEX PAkT ,,"UH. HE PAul: PAl( T iliUM. SlOE !'AGE PAKT IIlJH. SH: PAGE ~AKT filUM. 19 3531:;91 3537C(; Xl Xl 9 11 19 3b'tl09 Xl 19 21 ,,3 561072 1'1': 5t1107'o M1 .!, o<!5 i..: ~O 1 x i3~,,3 X .:i!>3 7CI! Xl 21 23 3 304J01 ,,1>4347 Xl XI '" 5 ;&1015 1'12 5111071 H2 5 5 3537C4 Xl 3 304535 Xl 'J lidl079 1'191 5 ';S371C Al 17 304001 Xl 19 21 5B1088 I'll 1 Ubll x 353U.l 353124 Xl Xl 25 11 304899 Xl 23 ~5 581il89 I'll SSll.tb 1191 5 25 3!H72b Xl 7 304923 III o<!) ~81133 H9'<: 3 H37.!1 Xl 5 305092 XI .3 581141 M<t1 5 It> 3';3 X ,,9144 ... 353755 .3;375t> Xl Xl ~5 11 .:105110 3t>I)041 XI XI 17 7 ,IH150 1'191 ~8111 2 1'19,2 .:I 19 130431 Hl lS 353151 Xl 3 5 301'>702 Xl 7 581173 1'19.2 19 7 25 3t>S1t4j Xl 9 :>01171> M9;C 21 ldOO".! HI 11 .:!!i315!: Xl 'I 17 3t>88311 Xl 1 501117 1'192 .21 19!>1<;1 Hl 25 37 :>0911 xl 3 17 581160 11<;;", ':3 19~j!>0 I'll 19!>.:i!>4 HI 3531t>,2 35376J Xl Xl 1 , 315099 Xl .2~ :> !>811111 5611 .. 7 1'19': 1191 23 17 1'1,3511 I'll ,,537<10 "'1 25 37~100 xl 7 !>sun 111 17 19540.:1 I'll 35HC3 Al .<5 375112 Xl 5 581195 1'191 17 1'15404 H 1 19:>405 I'll .;S3il'ib ,,53'ilt> Xl Xl 5 :;lIll9t> 1'1'11 ~1l1l97 1'191 11 11 19!>41" HI 353'7'::' Xl 4.2 1,254 I'll 581200 1'191 17 19:'415 I'll 353 .. 28 Xl 421)16 Hl 58120b HI 17 l';~Bl 1'12 354C57 Xl 9 4103"9 Ml 19 !>a1201 I'll 11 1'1:>~.:I" 1'1, ~81,21,2 I'll 11 19!>5.>.3 Hi .:I5"CSS Xl ,<70350 I'll 581218 1'12 17 1950" I'll 35"000 Xl 47v.;!>.;1 1<11 19 S61as I'll 17 19:'7vd toll l.,,;I;j I'll .35'" 7l 354C H: Xl Xl 3 47v354 I'll ,81,261 1'193 5&1201 1'19" 7 1 1'1:'911 1<'0(,97 l'iCl 101 19t.130 l'lt> lilo HI I'll Hl HI H3 1 Zl j 54e78 Xl 354CCC Xl 35"C'11 Xl 35"lC" Xl ,,54~t>" Xl 3542 &, Xl 5 .:~ 9 :> S 9 11 41J.,57 "70J1O 470371 4 70317 4703b': 470385 I'll 1<11 I'll 1'1'11 1'191. Hl ~ 9 9 9 9 9 5131270 I'll 561271 I'll 56127'< Hl !'>81214 1'191 !>I1l.215 I'll SSI276 111 7 1 7 7 7 1 191.>41t I'll iUo19t>I'll 1<; .,54':'14 3:>".;6<; Xl Xl 17 !'> 470402 470413 I'll 1'1'#1 9 9 581271 1'12 51HZ80 H93 7 7 354"C4 .;54011 xl XI. 7 17 5110219 580.280 I'll I'll 25 25 ).,1,,&5 M~ ,81Z8b HI " 5 d.:lt,,, HI ~55C19 Xl 19 .21 560.281 I'll ,25 5111313 I'll :3 ",:lb 126 ':j )lIvHO M91 15 561314 Hl 21 2.:1blll~ 3;;;05 Xl 3 )6Q311 1'191 15 23 3:'J = 13 Xl j;.H13Xl 353"15 Xl 1<; 3!>;506 3551)02 3;5clS 3550Ll Xl Xl Xl Xl '" 17 II 17 17 580314 !'>8voJIl 5110010 5110]:;0 I'll I'll I'll I'll 17 5 3 3 581349 I'll 581.37b I'Ii 5&1382 I'll !>bUS5 .'1'11 17 5 5 7 355t':3 xl :> 58\)9"8 Hl j :>111387 I'll ,21 35!><;,,4 Xl 17 511 1002 1'191 3 23 3550"!) Xl 3 5 )61005 I'll 5 5lH400 I'll 7 3534le 35.:14U xl xl J!)o~la Xl .:I57e.>9 Xl 7 I 7 '# 11 ,6LOOt> 581001 !'>81.J08 I'll I'll HI 5 :3 !> !'>81"07 !)dlIo3t> ,81437 /I'll 1'19£ M'I~ 7 1'1 21 J5.:14L6 .... ;>!>7:>02 Xl '# !'>61009 I'll " :>bl't3b 1'19£ 23 ;>;bjt3 ":';;04" III Xl 7 9 sa IV 2tl ,S1030 I'll I'll 5 , 5d145~ 1'192 58l4t>1 I'll 19 5 21 ];.:1433 l\ 1 ~:>tlo4S :; 560!'>G Xl Xl 9 7 581034 ;81.J3) 1'19': I'll 5 5 58151<1 M91 23 11 ;;"",,4 l\ 1 J~d<;l<;; Xl 7 ;8103t> I'll 5 581520 1'1",1 9 .:!5.,Co 1 Al 3 )bl044 Ml 1 060381 I'll 2; J~34J5 )0. 1 17 35SC15 Xl :> )1:1 100o<! /I': 19 .,.,"919 1'1 I 9 ;;"""" .i~).:l4 J" ... 1 II 1 9 3 17 .;~"'~~C Xl 1'1 2l ~J 007013 '11 19 21 23 ~~3.40 Al j:1,~s:e A L '~;t.11 ,,1 1 II .:; ,,~ . ., ~j '> JoGlJ 7 .;ol.;«!> ';{:U.:o ';olH} 3bD4" Xl XI X.. xl Xl 7 17 .; 25 9 '" !>lllOt>" !>I> lilo 1 "ai.v6b 5dl0t>9 Hi 111 .~Z I'll ot.7Cl" I'll 06101, I'll o07C7£ I'll n .<3 ':1 2l 19 .:i~~t..1'1"" 3;';"btl Xl ~ 1 303~01 It! .>0315C XI I 7 'i 5d h)70 ).ll071 I'll 111 bt>7CH HI 00 Nt> 1 1191 21 9 Printpd in U.S.A. 79-10 !.IF 41 MOWER 651 241 M94 (Issue 2) 12/78

Ii' NUMERICAL INDEX PAl< T NUI'I. SEE PA(,~ PAR T I'.UI'I. SEE PAGE PART NJM. ~H PAGi: .. AR f NUM, ~~t: PAGt 007'.0) MSI l~ ot9801 loll 19 II Ol4£2O loll 11 007 S II ,~ I ,,5 lj i 0" ~ 130 0'191 H til "~'r!> I'll 007,.,71:J /'II ,,~ 2:> oo9~C8 M. 19 n 23 1 vL)l:I9 0'191 1 02tl511 10191 II 11 /:;0 I <, 7 B til: b <: I /:;/:;9<; 16 I'll 9 1 0,,004L loll 11 "j oo<;"B" I'll 9 1 03tlll:J-:> 1191 II oob ~:'L M~l n ol:J'iS~j 1'12 5 1 0313101 I'll 11 oot! ~~3 /'11 l:Jod ~ 54 /'1'>1 IS 19 d ,,3 .d 0.,<;S~5 loll oessel; loll 6/:;<;<,6<, MSI 3 j 13 1 1j3d709 1'191 1 Oj817 L 10191 I 044329 1'191 11 11 11 oos .. S? I'll IS "I (;t>9~<;O /191 13 1 044j30 l1'ill 11 L3 01'103) I'll 19 n 1 U44.B1 M'i 1 II bb~"57 MS. IS .d .?3 1 044332 WH 11 ooll 'l! 1 ,'1 " IS £j ,,3 .1 L~ 1:J1'il1l31 101\11 .,0158l loll 19 21 L3 11 1 04443.2 1'191 1 044433 1'191 1 044434 ,~'11 11 11 11 "t>!!~<;3 1'1'" I~ Ll 0011<;5 loll 11 1 0444j~ 10191 II !.0!!5S1 1'1<,1 IS ,,3 .'1 16334L I'll bJllo.2 111 11 5 1 S02.,91:J 111 1 150088 1'191 11 15 (,bll/:;ll 111 IS ,,1 t3l<t<;C loll 17 .2> 1 l)L> 13 I'll 13 1, 23 b31tLl I'll 5 ov 3.,Otl 5 b.,8t 13 MSI 19 ,,1 ell1"9 loll 5 G 1091 2:' .;3 6321S4 loll j 'fA V<;9 17 coat14 1'1'>1 IS "I o3.UCZ I'll 9 "''' 632:><;5 M. 7 oudbc. j I'ISj d o32oCC I'll 9 Co" 7 I. '> M" IS "I. oD,,4/:; I'll 7 "" 1l33l47 I'll 7 "00'd'> MI. CUl, ~(-'o: "', I.'> L!; 21 OJjclt 1'1, d 34014 I'll I. 1 1 (;","'G'>~ M I ," t5 e .l4 G 1 e M1 bJ4CI.l l"'t.l 7 t oO'llLc ,"',I: IS n 0)4U7 til 19 21. ".J, 23 {J(j...,l4<.. '1'>; ouY ~ 4C; 1'1'>4 j J ;'363"" !>IS! ,,41eC4 1'1'11. 11 II. U Lu"J £out: I'll ("(.,'7,, d, 1'1" ~ 3 CC~6"4 I'll U 15 l~ eo ~"b':; i-';, ;I C 10 .. 11 1'1"1 13 1, t.uCJLbl "'" ~ I ~"Ol"i! I'll 13 t'o"itl" 1'1 I J CZeI4<; loll 13 <:'VYL~U MI j 0ZlC4'" I'll L:l ",,\12<' I .~ I ~ "",I.C~4 loll 15 t(.. '/, <, ~ M ~, I. ~ O.2IC'~ Wi! 15 ",,9 HI: ;-t,.,: <; u<!lO't. 1'191 15 ()()~.:!~.~ M" t>b"l.lJ~ I'll :> , udCi57 I'll Ci21~511 I'll 13 15 15 "0'1 J ot.: M 1 :. "nC04 liS", 13 15 co'>"to I '1.: ~ ,,21Doo /I',d 15 UO(lo,LJ":r I'll 17 25 "21Cel MSl I, La') 411 1'1'>1 t(}t; ';v j 1'1<,1 ou', ~ 1t; 1'\1 ", ", <; 021Go8 M<;1. onco,> l'I'iil all CIe ",C,l 1~ 1-:> 15 ",,'I?~1 MI IS d Otldl 101 <;1 1-:> t(.',!'",3 til "0~ ,t4 Mi,l CO" ~ Ii Me LO<;!.£ 1 I'll 11 ,,3 "', '" ", j I e21013 1'1,.,1 l. DdDll> I'IS1 1 C.!H7'i 1'1<,1 I ';21CBl loiS, 1 OdCe.:' 1'1"1 15 15 I:> 13 13 Ot."J{;"'4 M.J, .> 1 Od'63 Ii';! 13 /:;0'110.:' 111 "J OllC~4 Ii'fl U (Jb'i 1s.. j I'll I 1 i. Cn~b5 M<'1 13 I.;/;'1 'r 74 I'll co':! 775 loll c,,'>~()t MI I'> J 3 .::1 (d I.G~o M". • CdC88 .'1'i 1 CdC;:'> M'il. l.:l U lJ .i:> G.21Cc,c Ii'>! 13 t<>'> cG 3 M I 1<; d en CS2 liSI 1.;1 (,bY OciL M I IS ,:" d C,dC'>3 iii Ules" 1'1\11 lJ 13 n i CLltLI'; loll l.l 1st Print ~IF 41 MOWER 651 241 M94 (Issue 1) 1/78

v SUPPLEMENTAL NUMERICAL INDEX 5££ 0,,(,1' \ 0" O~ l! 19 21 .,"100'" "I I ~ 2~ w 2' ., ~III Q~.II "I '5810011 'II 11& I I W 19 21 '11110r.9 "I 23 '51' I 0:>1' 101 11139' X 'I '5 III 030 '" IV'''3INI 19 21 58101" "92 21 '.111103'5 10' 19"'1'5" 'II 'I '581036 'I, 19"'3''Ie 'II 'I '51'1062 "2 19 .... 0· 'II 1 Q""~'l N. .. 'I 19"91 I 101 'I 19"101 "I 19 21 '1"1011" 102 21 '581'169 "I 19 21 51'110'1''1 "2 21 '5&10'1''1' "2 J'I 031 ~ X I 19 21 581079 "''I 21 '161"119 "I 3'1 , .. I· l( I .. I '1"'11 .. 7 N'H ),\U I t X I 19 23 2' 'II" 172 "92 '51'1\73 "'12 21 '1111176 "92 19 2\ ""1177 "92 21 0;1'111,,0 1092 19 21 'I'" I ~I "<12 23 '110128'" "2 3'!\ 1.. J 2 X I 19 21 'II! \ 0110,. "I 23 '511131" "\ 1'114 ) ~ l( I 'I 19 21 23 '5" I) ....• "2 'HH '''2 "I l'lVl'OC XI 19 21 5"\ Hq "I 1'1n2f '(I ,'!\ n 21 l( \ 23 'I ., 'I" I" 111 "'H '1A\"17 "901 ''111' 'I 1 XI ''I '76' l( I J'I406t XI '\ 'I ., '1"\"'11 "92 'II',""" "'12 '1"1"61 "I 3'1&07' XI 'I 3'1.0'11 XI '\ J'I.I 0" XI )'J.42~· Xl 'I ., 667CI4 "I )"43~~ XI .. '''''0 I ~ WI 19 1I 21 1 .... ,., 2 '\ 'j( 1 '\ ~~70"2 "I 1~A,6.! )(1 'I I? 667071 "I .!I 23 1\67918 "i!. 1'1'107" l( 1 " ... " .... 2 "'II '''lOJ!) ~l--; l( 1 I~ 1\fl,J\4':;,,\ .... 6""'.". MQI ";",,,,,-;<; .. I 1 ..... _ ... ,.., )( 1 ,".1\/1 \ l( I 19 ~ 1 ~O Q ~ l( I l?~II'KI 1" ~ I 1 ~ .. 1 ., 4212 -; .. Jo4 I " .. 7n14r; \I~ .9 21 l'l~fl"Q1 "'H 21 ,)111'11') II ,,\ 410,\")( "'1 2\ 47· " c; 1 "1 19 21 1\"""'>1 3 "9 I 011 47r;~~:. M~ i!.' 471)1')1'-'1 -;"01\ '\ P Iii I <; ., 19 19 19 \9 1<1 19 19 19 \ 9 19 19 19 19 \1) 19 1>40T N\j". 'I 66&719 "2 19 21 'I 21 'I 669098 .. 2 21 'I 2! "I 669126 "2 19 21 'I 21 '5 66Q29'S "9' '5 'I 669325 "2 'I '\ 669338 "I " .. I 6693&0 'II " 23 1'>69381 012 '5 21 669'5'\' 01\ 19 21 21 23 ., 6697ft2 "I 2' 'I 669802 "I 19 21 .. ?) '\ 669803 01\ \'1 21 '5 21 'I 669&n6 "I 19 21 .. 23 I q 116geO'l' "I 19 21 19 23 2\ 66980& 'II 19 21 21 23 21 869983 .... .. 23 6'1'983'5 ,,\ 19 21 ... 21 ., 19 21 21 2] 23 1.'31 \112 '" "I " 11111122 "I 'I 1'311'99 "I " 'I 2\ "'''''''27 "I 19 21 21 23 I q 7'5)0IfJ .. \ OJ 21 DV )('0011 23 .. The Fallowing Part Numbers 21 are not in Numerical Sequence. ?1 699 039 M91 25 053 577 Ml 25 21 053 578 Ml 25 2 , 053 579 Ml 25 21 053 580 Ml 25 23 053 581 Ml 25 21 ;n 19 21 21 23 21 21 ,,~ 21 2 I 21 2\ 23 2 \ 21 <>1 23 21 21 2 , ? I 2:'!- 21 21 21 Prtlll"d in U.S.A. 00-54 MF 41 HOWER 651 241 MY4 (Issue 2) 5/80

VI CURRENT PAGE LISTING I J ••••••••••••••.••••••••••• I I I ........................ . IV ..• ...................... • V ...... •.••••..•••••.•...••• V I ...• ................ ••.•.. 1 thru 3 ................... . 4 ,S,n ....... . 7 thru Hi. ................ .. 17 ......................... . 1t1 ..•..• ................ •... I }I. . . • • . . . • • • • . . . . . . . • . .. .. 20 ......................... . 21. ...... • .................. 2::: . ....... , ................ . 2:! ......................... . 24.25 ...................... . Issup Bulle·tin 2 1;0-54 2 7H-l0 1 1st PrInt 2 HO-54 81 1 1st Print 2 79-10 1st Print 2 H1 1 1 1st Print HO-54 1st Print 4 1;1-1 lsl 1'1'1 nl. Jlrlllf .·d 111 f.'.;) .1\. H\ \ MV ,11 MOWEll

!l1F 41 MOWER 1 Printed in U.S.A. 1st Print MF 41 MOWER 651 241 M94 (Issue 1) 1/78

2 FRAMES, HITCH PINS, ROD LIFT [1405-2 52~--;P 14 /'\. -13 '\/ 52 15-A~4 "'~-14 i 3- I 62-1 ABC 0 1 53 1 55 1 56 1 57 e54 059 "1»58 059 e81 ;l~ e61 ~ ~--23 ....- l~O I A I I I -11 22-e. I I 60 0-59 / / / / / / / / / 18- I ~--33 I,,' .... ' ~-10 26 21 ~ i-51 '-31 , ~-34 41 I - _ ~ ~1 ,. ~32 COVERED !IV ONE OR MORE OF HiE rO~lOW!HG PATENTS .. 2 UNITED STATES 2 736.156 2.741.889 2.742.753 2 743 568 2 715.855 _~~~654_ CANADA 1957 ~--- OTHER PATENTS PENDING 1st Print 651 241 M94 (Issue 1) 1/78