Maintenance Manual Model R44

,-011:---IAMaER- _129 ~ 9,.+-~-i--i, .,!,.cAsE LIGHI LT , f 112 1 0278 ENG OIL PR£lS. SENDER 1 l GEARBOX J ½.- 7'i, ;:R.G.B. CASE GND ~ 121 I 503 ...,.. CHIP DETECTOR PRESS l[RH. SLt--....i OFF L 15 ~CJISE GND ·1 Cl-II '= GND ~ I ~ ,i=,--- I- GOVERIIOR ,-K I " 10 I 12 TERHIHAL-✓-. ------;;;JB f9 LR 164 J_ 1281 Cl-18 ~ ~I 128 I - CONTROLLER l.!i I - - -- - '-<>S;_ _ • L __ A.... ,_ JUHPERS • ......... '°'" . ,-;,=::+1--=--=+--++----....... ,-, rr=--v661, ~ ~03 J LA.~OIIIG Jd 572 ,F, , ......--------------' 46 ~• 13 lt~ ,- ll:~=::i::•:,._,r-+-"--""..;";;,.·----+-..;.ii-"-'-'-'-'+--+:---"'"'-----' 120 IN 4005 ~iODE 102 i 85 · • l·J1 I ~ : RETRACTION LIMIT SWITCH ,-a.. 1 .-" r.=___, T° srARTi..:·, I I I 16•'1 Cl 34 I 2· LIGHTS • · · •I OIL O , AUX FUEL l,.l,J I q;-6 --,E,~•j'r~-~-lil----j===-W-h ~ · 573-- IG 416 ,1, I I IIAAr.JNG LIGHT CIRCUIT TEST SWITCH!S 11 TEMP v • 418 QTV at TERM-"\. ~ BO 166 166] ct-36 11! :!~ .,._:i ~ 10• f 14 RELAY , '. 574 '"A I --- Low FUEL LO~ H.R.G.B. 11.R.G.a. r.~.G.&. ENG -1-<>s. 1. 9s. 1.i. I :il UMPERSI ~ .......1--+"''-"=1----1-+:c:.c.i-i-::;:....:c::.i---t-1---------' 4 105 1.11x Am. orv SENDER QTY SijlTCH FUEL ovERTE.'11' CHIP c~!P r, •• ?vc;o 'l 4jj-- INST ...-----, :l>.._+;R'-l'-'6'-"i'----1--+-'1"'6,;·,i...:.Cl,._-..:.12~--+,----~ 67 ~ 576 1'il: I mr ...I- -L- -L. ...,J_ -L. • MAIN FUELi 1.IGIITS ; ,___:: 634 TO CON ~·- '-----~-'4"-70~ ~ A045-2 577 le I r,~ ~ 1 {'~i ~ . !i ' I a ~EtP 1 • 19s. QTY 1 ~ I ~ A661 8 : 584 (1-13 T?.A~SCEiVE? 200 s 200 ~ 176 578 •o~ : otl~, s. :: !I~ ~ ; ~ ~ ~ E.___~;-8-t--- - -- 9 GND- - !..I l~mrnN • s 584 r--HI-H-+;H-t-----+---+-+-----.-i------ ~ • 52 'II , < .,! CASE GNO I BAT 31 31 Cl-16 I 19 , ..-·l;:J OPTIOHA~ RR--=-- ,r;::=::tt:=lt==::::::==L=•"'=====::::..:~uc.~ < ::: ..._ -- 44 569 ~ 129 :; 129 Cl-19 1 , • 4:C nmg~i~s MAIN RJEL QTY SEHOER , ~ .rl TERI-IIAAL JU11P[RS I I ,, ...... 1----_----t--tH-1-MT"' lD T I lJ BREAKERS 31 rp, ROTOII SR.\KE S~ITCH se ~~-~l r·----. f~ -i:.r.:i!]WARIIING LTS I [ v,~ C045 CIWJ!T •10 •2 ,,__.JRELEASEO OVER~E~rs8wncw ' • l : 'A - • TERII. BLOCK 191 Cl-15 I ~ BREAKER INST't. I I I I 47 ,¥ , ,-,---------,l-1r-r-r--1-+-------+t+-' 471 ,31 I '-' 7£1:~GEO ,- MR GB CHIP I .~~::'.~Jrrr,~~.~► I \._..._l:~"'0'----1 "' I ~o--:-~~--i=~~~~~;-----t-~ c~~~~..:;~0.,..,--E--,r~1 Ho{t. ·.~ M:,'"'~:· • , • ' J~rn??f ' .~;.\~~""''"' tf ~ ~<$'.JCOORDINATOR t 11666 L _________r----r.;!66«=6Ticf.1-'.zz55j--r-At1o~~is ••I 125 TRIH .--------,a ~ ~ I • 629 tel ti ____. .__-:;-:._L__ _____,~5..0...0_!"'.~zT;.-:,,..1~_J_. l• 125 CZ-23 CIRC BKR 125 CONTROLLER 628 1 29 29 ~_. OFF 14 -;y~ SGLENOIO 3 111 I 52 Cl-28 52 -• - 5 CH - ~ I . 22 ~-•LT[;r.ATOR .I 58 Cl-31 I - f.':"j, .sHU~T.v CASE ~I 36 199 638 !2 2 r1.1 II !3, 127~ GNO••I •~9 zc &li !36 I I~ cc1~-1~ 111 I so1 23 GRN r3;1 38 .-1-- 1 -------------3~8 -------. uPPER I 12 c1-9 towER .(- \ I 31 I CONSOLE 637 Cl-12 CONSOLE .¾. 39 , REO 121 1 36 I ~, GROUNDS 152 ct-24 1s2 GROUNDS I rn HYO CONTROL SWITCH 1 '--=--' / I I I I I 8LK 43 II, ·•l:f------'--=--=-;---+--=""11'" 1 II 629 A604 BLK ~11 ~ 37 : :2 : ••I~ 65 .________.3:::8+,:C.:.;l•:;20::.J._-f--------' l BLUE - OFF 23 fi'l BLUE CARS AIR I 1 31 ~ swnc11 :: ~:=!! 65 121 I WHJTE~ 507 ,21 I ORANGE I ---. S81 TEMP GAUGE : ;4 1 RED 4 IL~~ !i,~=-.-+'!--==-< 1 141 IEMP GAUGE 1 5 RED 151- , 199 1 41 1 YELLOW I ALTERNATOR 110 fl:: FI RE O[TEC ,ION SWITCH 142 I ,---,5,:-;87;---,I OUTS [OE AIR I : I I ROTOR BRAKE (,i:::::Y::tfl-4_3_4__,••_• .....;:4.:..;71'+-'C"-1-'-2"'6,-l_-i,-..._4-';~l-, I 18 I l I ' RED I A942 '1 1 L:~ BLK 1so~~~~: 1 ~~N~~: w:RH. LT .... _ L _ 4 1 51 1 I co:NT1~oL ~ 1st : WHITE I I ~~~T~~GF~:L~CCEPIANCE ·•II 33 Ul~ BLACK L_ __ j ~~E ~ GND A039 LEFT POSITION LIGHT FIGURE 14-1 ELECTRICAL SYSTEM SCHEMATIC (14-VOLT) 114 115 66 Change 13: OCT 2006 Page 14.17 ROBINSON MAINTENANCE MANUAL MODEL R44 142 587 RIGHT LANO. LT ©f '~ ANO. LT .,. 587 141 694 STARTER WARN. LT LOW OIL PRESSURE WARN. LT 580 I A039 RIGHT CASE POSITION t.::J TO PITOT SWITCH ---"7c::0~9 -iJ--------. C543 CONSOLE GNqll, l lGHT \lliJ ., 691 ,r;--} : TO HEATED PITOT r-r---_-_-_-_-_-_-_-_-_-_-_t!t:::.:.t:.t:+,•'°-_-.: TO Ell •II A212-2 591 --- WHITE GREEN YELLOW RED ORMGE BLUE BROIIN BLACK 78 85 84 I I 587 !NOSE BAITER! 581 !AFT BATTERY! C2·20 C2-19 ,. I C2•2l 85 • 3 Bl ENGINE OIL !"VHO C a PRESS. SW, ra;1 - ~ 1N 400s :ioOE " • ,: ,. .IS l} I . 164 ENGINE lEFT "' ELEClRlCAL CONNECTOR I ~ l, r.r~ ...1§2..i,. I - r-- I r:1 - ~~a---+'.,.a.,..1-ll!-'e::.:o,,1,0RA=N"'G°"Elc....-t•~-·----------, ~--s.,9_1__c1._-..,3-+---+...J { 1~ :-..., 692 11 • ~ ! f I I 8t(WlHTEI I 1 6 Cl·• ENGINE~ 150 10 5 1 .l 691 ORANGE ICOlLECTIVE ! £, ! 82(BlU£:I !, I C2•5 I llOUR 1 (ll 12; : I 689 BLUE SWITCH u, 80 .l~,..c"'2-',l8--+--+-._l NETER + o-f-"42'--, 51111 °" I I i i 690 WHITE (HOURl1ETtR) _NC ::: ;;: !. I 81 •• C2·16 11 I ~688 ~----;:====1==f;:.,!150!!!) ANO t...a=;;;;..--i-""!kH li.-a"'l-----i.l:'-I-WH_I_T_El-------.1 82 • • c2-11 • 1 11 ~•¥\fr::§:~:§~:§:§:§:~:§:~\-:_j_=_lf__:-___________J_'_r--6---t---t---~=•-Fut_L_llOllll__t--t--------t,Q' ,R 1491 I I ~-----;,71;;..,;-:.'--1..::C::a.2·_,l"'O+---H:'------------i-...11 - __.....sa_s____,._--1.-...1-t:tJ'I ! J 1 :n I ! 1 89(eLuEl 12 r 'c2-11 T LIJ , • •01 •I'" 1 1 1 - .. j '--------;83;--1Jtt;.C2~•:1S;-i'--J'"'11~--------;:=::f:jl:t:==f---:e:3--, 80 YELLOW/WHITE IC, 492 '" T 89 II C2-24 1 II 09 ~ ·~ :.~~£ rr, :~ V CM 1 163 !J ~ ~~:;~R !.!u Bl ACk 3 87 I ~i~.~: 76 !;H ~c:N~:; RED 14 185 (ORANGE) 1.1G1_.!!__ / 78 r,T1 •~ u•H ,,, tow , 5 1 84 WHm !:YI L~.. !.!.L, WHH 81.UE '6 86 BLUE $1AR1Eft BRO~~ ; 1 ~ 63? 1 633 Y ·;:; •r 1 1 ~ RELAY - ' - c,... 591 - ~► CASE•II CJ GNO STARIER 80fORAIIGEi'°iT1 RED n81(WHITE)l1! ! BLUE I TACK 82(8LUE): 31 I BL< I SENDER 8S(ORANGE)f1f1 REO - B4(11tm>l2i BLUE I ILow m 86[8LUF): 3! I Bl.k ~ SENDER - .t1r. LOW RPH L0:/:1 ::;. ::: : 01 I ,--- 10 c2,g collECTIYE swncH 166' ls84 I ORAIIGE ;10 ; 634 r-:::::::;':'~=,~..,1~s~c2~-~u~--+.,_~•1,."'~~"" [tlJ ~A~~ 5 si~\ I KAGNETO • •~I ~t'\"J,~~'lfl R;EJc,i'il'-1--~•~-•• CASE GNO / eu,2,,, ,_ CU3i• WIJIIIIIIG f\ HORN B320 79 - "" A708-l CABLE ASSY ! I .. STARTING VIOLET ,Ill 1633 I STROBE LT 76 C2·14 - uNO VIBRATOR 80 IN IOB ...____L_-,:_-.:.::.::..r,=---,l!~1~nJ=---- ~ !:: ~::; FULL OOWtt :: L l3t~~;I __ JO 21 523 107 C2• 5 107 l 100 i c:1~~ I,'11. _,,__ _101 _1 104 cz. 2 101 11 • _ I " 109 I r6 1 I 694 -- • "°A ei~E::t~Y Im ~ (GOV OFF WIRING)¼ A072 STD , ClOC•~L T liT 1 133 577 GNO I 12i I 134 I•• •v !J: I 137 II ':'1,~15l5Zi\ 104 ;:::.:.i~~34!+fc[1-J1!!1:;::=:i::::======::::iii:1Ji:+J:::+J+J:::Jl..-J3~•...._____:___..:_:_____:====:r=iW.~~=====::f=::t:1;1t::=...J 95 ls 1 11 i Cl •8 I r-"9f:O:::;::::•i:2:::::';:::::: 0602 I ;_• ACTUATOR DINNER I I I 7 4 TIME DELAY ''bi!. I 582 I ~ ., 34 A212·2 rPil STROBE ~ llGHT 109 rir 1 TAIL ... 118 LI~ :, I r---7 - ~~~AT_ r95L_;===========;;i,L~:J_f-_ _:!-:i,Ht.~~f;_;1~;t_r_-_-_tr_-_-_-_-_-___J_, ...9..9••1 ;i""_•l~.t'..-.:r4-'::-::i..,.....,.,-,,....._J ln.5 121 ' 9 : l~ .., ENGAGE 9llr-'"t-"""""'t--i,-----' I 1 10 38 4 I 138 ~~ ~'"I..r:.~rl~H~J~-:=---==""-==""·:t-··=.....==-===1-..1t~j~¼:l-";~7•4~~>-~~-·~~·::-1....,3_Y,ow~--7-tt"t-t1r.:~:~~!tri:~:;;~:~-~Q,r)ffiu 5s; --] RES /-"(¥,-;/.. - 113 CLUTCH ~ t ~" l~' 16 ' FUSE ,Ji,j)? :::~,_, .:r: ~I r::,mT I C02l I 'L TAil ROTOR J're YI 695 GOV "OFF" WARN. LT 47 (~RI 5 TJl.6.B. CHIP P WARN. LT 60 IC':RI 57 LOW FUEL QTY WARN. LT - 57 58 LOW FUEL QTY WARN, LT TIHE DELAY - 93 rev 1 92 CLUTCH WARN. LT 46 IC: RI • UG.B. l[ffP OYERTEHP WARN LT. 44 10 B144 INSTRUMENT CLUSTER + LIGHT 124 ~ou:---~£1ER- fil 46 PRfSS. 1) .!21::!!J;._ 1/.r;-:-__~..;.s .!! OIL o1~ IUCl IEHP ~, i 418 QTY !!..1-os. 1.)(loS. ll ~;;D -y -lri-- 34 TENP , ~.AIN FUEi I 111=-+-os. 1. es. QIY I I .'..!:..-l,.,ll!::;t>::-f,::;iio::._=t'111 ~I• 199 580 638 93 1JJ 1 •swl!CH 12 ~m !~fs•: l~D.t'f •i:i,:m.~I 506 -~o•TACH -r._;: ~ :,':;.r.;t•• I 2 PLUG 92 ...... • .,.,OISENGMlE · I •. SWITCH 583 RELA_Y _ ENGINE SW CASE •-, - - :t 98 If IJ54 r= I I 98 .I I 1n, I gal ., RIGHT • •.GND - 941 94 ~ ~ 161 'I•· r-i14 - TO - -------..,; MAGNE10 ----,h• 91 11 ... ,.., I· .0.IMP m,IOOH~ 1' ~~•~m,_ C1CllC s•~r,\l ~~B~ll (lETT SIDE OF HELICOPTER) lul IIC ~ ~• USE 50V CAP. - 633 !Ji ! 10 ,r gJ IIC :, SPRIFtG SWITCHES e_ 103 l~I p ' c= ~ HAP LIGHT B3D4•1 ~ 116 !,! : I ..__.s-06..__r""'fN-+- TSWITCH l...217 28 J 11•Li, 6 I... 29 IJI I I A • 5 O ~ COS! AISA ~ EXTENSION LIMIT SWITCH I I P 1• _.11,. 11 2 1 - 021a ,~ Ee«: OIL PRtss. SENDER I rc8J~,~ DIODE 95 u,, 1 1 IM 4005 DIODE I rGOVERNOR p:. I 'cACTUA_T_DR 90 C IIC L~l!JZ~;•!t).rfflt""rn..2...-, .!!!__ coNtRoL5L7E2R HJF"i 11 sat~ L.l2.-..i.-"t::--:;;;;::;:;;:;:-::-;:::;:-:;:;;:~ Ir -=:-v2 ~ ioLOa.J LANDING 417 rz1'1 AIIO REIRACIION LIHIT SWITCH • 'I~ ---icll LIGHTS II 573-- GIi ◄ I 416 tl11 1 -- ___ __J Iii 1~!-......:! to• 14 RELAY il5J4 H I LOW FUEl IOW H.R.L.8. H.R.G,8. T.R.G.8. EIIG • 1 2 ~ LJ\.. 14 •• ~ I AUX FU(L QTY SENDER QTY SWITCH FUEL o,um" CHIP CHIP FIRE ~ ~- ~;~.~;: I ~ co fj ;-L ~ 1 1 416 Im 66 122 125 5ofhEs 127 20 0 RESISTOR (M72ClOCKI-. I~" - I..- ~~HlT LIGIOTlllG 1(1111. BLK...._ ~~ L 15 , CASE GHO lERHlNALJ. :,- - ,orii8 :'I LR 164 1r- $TARTN I I RM- g: ro 161 I• -ERS1~ 1.l:I~ ~ R 16 ,,,...._...:: 634 I • GEARBOX I - 1:R.G.B '!" 1 ' CHIP USE llETECTOR GNO ~1z! 150l ..... 503 WARNING LIGHT CIRCUIT TEST SWITCHES 2co-.,_..-u 176 ~<i•RC)•,~,ij .,1 :! ~~}~ 1 • ~ •~ ::: ,:! ~] ~·? t ~- Eif~1 ~ ~1 I MAIN FUEL QTY SENDER 5 58. ! f ... _ ! .....=- r•--••--, 1ctft10N I · S 584 129 I f CASE GNO SNITCH BAT 31 ' r - TERMINAL JUHPCRs 1 1 1 I 19 ' 2 ~DPTIOIIAL I I 5 47~ n AVIONICS J I I CIRCUIT 10 IY-Y ' - WARIUNG LlS I I I I16 6-- TERM. BIOCK I I .I~ 19 Cl· 15 COMPASS - ,.__&.,9,.s______+, 111...f!----' l b6 18 c1-14 llGHT _ I l!> TD OPI. ATT HOR I I ALTERUAT(III .,;;,19-;9t-,-C2'-·-'l-+---+- AIIO DIR GYRO ~ 45 SWITCH I 204 C2·26 TO RADIO l •- ~I• LIGHIS TO TURN j2j667I 111 513 1513 Cl-23 ~--•••66& I•• _,. 12s c2:;; A~1o~~~s u2 ~ U7 2 626 IOAUIO{~ TRIK 5 CONTROll[R 628 •2 lJ BREAKERS C04S CIRCUIT IIREAkER INST' L. 626 ----------+-:,~':.~':.~i++-"5"i11 C.OYCRNOR \.SWITCH POWER OUTLET ~ 627 :!. I•· 29 29 571 \fzfl OFF 516 th 1 ~ L...i!!f-- 0~ 31 rjl, 'ROTOR &RAKE sw1Tat 61 H.R.G.1. 1 1 1 MAi~O:roR I 470 •2: : c .. _ RELEASED "i OVUIEl4P SWIICM I GEARBOX t 471 ;3, 1 oc..-,EIIGAGEO - H.R.G.B. CHIPI • ::i:f:t7':~:. ,L1 ;} ,-:$7J;..J 3 II• I j l I 198 ,.... l -, i:::r- • 52 Cl· 2B CIRC 8KR 5 Cl· 4 (!:YI 199 lOW VOl TAGE WARN. LT 45 re R 1 3 H.R.G.B. CHIP WARN. lT 638 ENG FIRE WARN. lT:N. L1 f C,: RI 637 Page 14.17A ,.....5:....~;;;~--:!..'---I ''11, 13 I I 12 3 Cl·2 lOWER 152 I••~~:~~ II 13 Cl·lO - r.RN r4p 38 ;~ cg~J~c J;1 ~U2 r \ RED 131 I 36 ' 1 ~~ GROUIIDS 152 Cl,24 c604\ _J___ BU :2j I ; l'I BlK 43 ~•- 30 ·•I 38 Cl-20 f111 ":~u~ONT~~/WITCH 629 . ,UL.I 4 CARe AIR - I n• ' " • ,2, ,,1i--==-,-o 65 37 c1-21 '21, WHITE S'"'iiH°7 I 23 IT'!1 oeaALUNGEE -- --, TEHP GAUGE ·-;UTSWE AIR ! !!: RED 8:TTERY SWITCH '--;;;::•~;i•=~•=-,,-.--'65 7"::,:Cl:..·::: 33 ,---~;:--" 6"- 5 -;::::::::t--t;::'.J~'1~4rrrr~~J~~~u.i•;•;jjjjjjjjjjii~~~:,£si~~~7,.i:fz:Ci:J!~~ I TEHP G,O.UGE I l~• RED 151 ,_ ot/TSlDE AIR I ROTOR BRAKE{..-, 471 Cl-261 1141 411 ~SHUNT I 18 1 31 RED : ~942 : 141 1 •61 BlK 1so ll1TEHP SENDER WARH. LT. 4 _ L.- I 5BO, • • ..., 199 , 4 , vc,,nw I ALTERIIATOR I~!; I I _kw - (B341) I f ..-- ,11 I I cir::rr- --11!.. ~ : 6I I WHlTE I : llS ! PIH 16 FOR ACCEPTANCE 33 ni I &LACK --• _j ---:.J!!!._ f 66 TESTING ONLY I _ I NOSE BATTERY 110 £3 CASE ,rA039 lEFT POSIIION IIGHT 66 * For 14-volt R44s which have remote EL T switches, clock fuse on firewall, Governor-off warning light, clutch actuator test plug (if equipped), and National Airparts alternator (if equipped). SHUNT LOCATION ._....2.,.2_______________________________.., FIR(WAllJCASIN BULKHEAD __. 5BO(A780-27l ·-;---i 581 A780 ·2: r-, I I!: J :l,ar,n _ ,_L~~~,.. 37 121 " I D Q~ r1 Q 39 ........ - CARB AIR TEHP SENDER FIRE DETlCIIOH SWITCH FIGURE 14-1A ELECTRICAL SYSTEM SCHEMATIC14-VOLT Change 13: OCT 2006 ROBINSON MAINTENANCE MANUAL MODEL R44 STARTER WARM. LT 6 . 44 LOW OIL PRESSURE WARN. LT 591 ,~.-.IL._jil-"---""~ll•,_,r_,1.,_ll:.:l_ I liO I ~ AD39 RIGHT r.;_ VERTICAL FIREWALL/ CABIN BULKHEAD 709 DOME - ~&3 ~ 121 1120 CASE '°ci'J"H~N \t'[J) TO PILOT SWITCH E3 r-;.::.::.::.::.::.::.::.::.::.::_-,::,::.::_-,::_-,::_-:::.r~.f,.,.:;-''!'a;es~2 ,- = 2. ~~---~T } -~w~1~T~E--~'~s~,~➔1 ~:~•~co=M=•=GE~>-----.~~1_6_0_,_•·----- l~--s~9~1-E_LE~c-~7~:~=~~~~-b_°L_~➔cro_R__~-~-1~o_cL=6_ffi~~r'T::::_:_:_s__~u..__, ___~ ro1~~1~~-~.-:-::~i,~:-'•_•-~~~-E_E:~E~~w_s__~l11r-;;l~::~::~::~::~::~::~::~::~::~;~~~:~t·~~~:~i_'"~~~-To_E_Lr_~sg~1~--·-.TOH:•:: PROVISION GREEN I Fl Bl(WITE) I ' ti Cl-5 ELT 2 1 B UF 581 r=;::: FOR RADIO ENGINE r-=;::tof-:-:--t-t>i--E3-'7"50', SWITCH 111 1851 WHITE COLLECTIVE SWITCH MOTOR CASE 11 • GNO 'KEEP ALIVE' YELLOW I EI 82(BLUE) 1 : C2-25 .imi1_:;:o-1.JL_ _ (HOURMETER) UP NC 751 562 (UNDERSEAT BATTERY) RED I MI 71 l I BB ,l C2-1S .l ~ ,-+-r---_-_-_-_-_-_-_-_..,_-+--'1"'50..___.,c,,,_"Sl"--""t"1"---=--,,.----- • •II A212-2 di A212-2 I 587 ORANGE 'NI 12 I 81 I I C2·16 I I I 11 591 -• 1688 I I r 1556 / .:,NO : ENGINE Olli "V~INO C 8 591 _!: t;: ii r---=-,-..-_-_-_-_-_-_-_-_--➔-:,0-:-...:::t ..... .., B3 I (WHITE) 62 ,, C2-17 ,, II 6 ~ FULL DOWN PRESS. SW. NC lI I ~ BROWN 'RI' 491 ,, 71 :· C2-10 -· 111.!::::6 I 5B5 - ~- p , _ ,64 BLACK • J 1 , 13 l 89 : 1 caLuEl n r 'c2-11 l l.:i:j I I 10B 567 ,,1 a IN 4oosofooE · eo(oRANGEJlifi RED _ STARTER - _ E_, AlSA 1 1 • • L--------;83;!-,·ft-jrr,c:;2~-1;sr '-:-A-1--------;:::t::tl:l===t--:s3:---, I 80 ,, LJL- 3 Fif:i tlo~E I ,:;~:rl++Clol-100.,E _ YEUOW/WHITE 11 cA 492r---,-~R!,\1E1.\l,·0ee-..ir~-1J_,._~•J...::::::::::::::::::::::;---8"-9-',.'r-+"'c2'-_"'24'-,-'-++'..'----------I--IHl+il-----,,...=8,.9-, sllWHITE1•2 • : BLUE or GREEN I TACH 62C8LUE113 1 1 •• ,,. I SENDER +l 11-- . c;;r, I T~~ELI.f'E~ ~ :~;~ !; ~! I 85 u ~:::. I 163 1-' 567 B5 ~ 6510RANGEl!ff'1 OFn - ,::,N I I AlSA 0 8 1AOTDTEERY I ) ~ 0M; 76 ~ ~:,.;:: RED 141 85 •. CDRANGEl 64 1 1 C2_19 ;, 1 SHWHITE\;21 1 BLUE or GREEN I ILOW RPM .,,4 L.-.-~ (pi: STROBE LANDING , \ - LIGHT /1BfiTj ~ UNIT ~=~"'i"~niiu:•P·~•t!1:ia•t!•l:t<•~H[ITll.El)::::::t~r--"--H'"t"'""'t-i:t____ ... 63 IS ,! I 86CBWE)i31 'BLACK I SENDER I FORWARD or RELAY (CIA I l...- 1!.1- WITH BLUE !61 86 CBLUEl 66 1 : C2•21 1 : ,----,1.;;6',,4 ---, --- ~ LIGHT GEAR \ \ \ 1 UNDERSEAT _ I :ii: ~ I. STARTER BROWN 71 632 ._. "'·" - l--BA_n_E_Rv__ .._______ ,: .);75 78 LOAC56K09UT GREY ,a, 1631 6:13 70 c;.!5 s _, BLAC< , 91 • I '----➔-=----r--+-'1 00~\~• •~>CH ml 564 I RPM VIOLET 111 I 633 I STROBE LT L--'-76:,+-C:::2a..· 1:c44--➔~-- ,a. VIBRATORl.!2....!!!..J 164 16 ENGINE LEFT 1 1 MAGNETO __L__ _,, 1,. o/iitt"Ji;?E~l m ·sw CASE G 0 ljlj 1454 IREOI 1i1i 121 ! 1455 IBLACKI 121 , c.:::.- :l V !~ !I~ ~~i 3 1456 /WHITE! 31 i [ ~ ORANGE :io: i 634 ~ 75 cz-13 ~"' STARTING rt-t, ~ 1 :fR S:u~0 :ty I••RN1•• 11 L __....Jr-==-:...1:';:_::••r"'--' swnC!!/._ 106 cz.4 RILL,_ 106 w[R_"{o~url-~ r-"' ' N :.It:' :: :: ---1i2 .....-14~1~--+--------... ::: 19 _ _ _ _ _ _ _ _ _ _ _ _ ,., ~~~ ~!:! 101 ~ 109 L !:i 'i a..., JU 44 ~ I ~ f'j'l"j934 ,. I I '~ 107 104 C2· 2~ 11Di)J7:...._..::)E3C::i1'.!i10C=======::t:-ttr_71 .. 109 I I r6 7 34 I 11 _ -CYL HEAD ,:=DTEMP CAS~SENDER =0 - ENG. OIL -~' TEMP TAIL 1-.-, ,·• 118 Ll§!!J ..J§Z._ 94 II <l,MC I z1 ltzl • 1' 1 34 NAV LIGHTS .-...:t::j34~t£C:'1!.;·j11;7·~:::1::::::::::::::~~11:~ni:.~~ppt:t11-_,!l~4;...,_______________-l.:..J.+l!-=i-.!::=====i==t:1:tt=~ -_..95..__ _,1.a4-s-1'.__, ...+-'-'-----·• ti.NO·· I B395 ....._ Ji"il SWITCH -,,3 104 I 111 Cl-8 I 1 ~ 12 I IHi02 ACTUAroR TIHE DELAY 109 •111109 •r I :iO CASE GND SENDER 5•~·, \ - 1226 RIGHT @t ~LIGHT 8260 RELAY 'I I CONSOLE 1 31 1122 11 . ASSEMBLY 16, - :t:t I LIGHTS 1 41 931 I 10 Cl- 7 1 98 •• 8264 SOl CONIIECTOR - 694 !GIA I 695 (•oov "'" ..,.,,,,.i .//3 ....t!'....- I 0l1111ER I 51 932 i;w <' 95 416 416 Cl-22 I I ,....,:,;,97-',~3+-",----t A072 sro • ~--.i5:1.n:.,I I 6 1933 t <1 ~ 95 C2-ll 111 ~T, ... -,, 582 r;n • l.fil...:.l.. ••, 194 --·- I __ ,::F., I •• :---------::i CLOC~Lf 133 'jT"j I ------- ..... OIHHER / be '=•-.....,90-=C2__·:::30-+---+------'·,1, 138 " - .............___ • ..Mil~ ...., nc•@ II GMD-l 134 •-1 I I·· ·- - - - - - - CONTROL,. ,.-lft'H-"93._,1_"· 6 J!~BENGAGE _!11 91 C2-31 I 138 .... Tl V lr-++1----•-.._•---fiH~l+-~5,e-74~"ll~..:I,....3 AHP '¥/ II' I REDIGEAR-11~55 I ·- :., .. -•~ , ,~ ...J', 94 C2~32 104 Wo, lrl-++-------1-1-1-1-1+-~5!!7~3½¥.~ ;; g S:: ~ ~ _ MOTOR ,r-1rEST 1 +o.7 137 ~3-~ ,------13_7____..,--tttth, 137 -!"J-rd! flim~ iii 28 C2-27 tz trr=1LAND.i;; A999AAD"?oTE~., 506 1• 'TACH FUSE ,·:N~ :--~·:---::J, Jt¾iPLUG I -,----7 I C021 l TAIL ROroR IGOY "OFF" · WAR!I. LT 47 rl:: A I 5 1144 INSTRUMENT CLUSTER 133 T.R.G.B. CHIP WARN. LT _+ LIGHT 124 - 60 reA s1 LOW FUEL Q'!Y WARN. LT S7 I I SB uiw FUEL QTY WARNING TIME DELAY ._ t:::,47 44 r.;;~_.93._-➔-fi1-==TT1nh I I 1552 IC:AI 92 CLUTCH WARN. LT 4ti (Cl A I 2 H.R.G.B. OVERTEHP WARN LT. 198 LOW VOLTAGE WARN. LT I - 580 36 638 93 I ~I • 2 f'90 o r'o1sENGAGE 901 136 C2-35 I u:: SWITCH 5B3 RELAY :~;E SW. CJ'/o' I~ - :J •a I 1354 r;::::>ITl 98 94- 577 Cl·l7 1.t ' • 161 1,,11 -, ,--- TO - -~ MAGNETO II• •·1 NC C -- 119 ---- ~NC : I 583 C2•6 66 - ~l~ ·t ,.~::,,,~ll'-- CYCLIC ,..)!...f.!l 1 2 (LEFT SIDE OF HELlCOPTER) - •• ~ 1 61 lm 66 I : 1 ~::: 142 _ rt:,, ::: I to .- 633 ,:, I IL B Sil 10 p :--! ~ ~ ~ SPRING SW!TCRES :0 416 125 122 127 SWITCH LT 1.0 AMP ZB 176 !2! 506 ~1- I COSl .. I ~ , 127 C2·B _IZl CIRCUIT FUSE -• ·2r,' j 119Li1 : 2• 111 I r <, 1-1 BELT AISA NO EXTENSION Ll•IT SWITCH •, ~ 'GND 168 Cl-ti "-:.:....J,!IJ BREAKER ,, .1\. • ·- TENSION IOOE l -, CASE GND 9.+------l--+, -,!.-_cc6AANss0eE LIGHT r 112 I ~r 0278 - ENG OIL PRESS. SENDER o 95 139 ~ L 15 Cl·ll -- IO ; 85 GOVERNOR ,!. I 58~ : ACTUATOR L..J9~0_--:--"'"l..:c~~IMC"'."""-;;,:;;;;::;;;;;-;--;;;;~;;;;-;:;: 128 CONTROLLER ;,i] ', L 1 - .... ;;.g..N+-+LR"""'1"'"'4-- 126 c1-1e 661 -2 • , ~ LANDING ,11 512 w, • 411 .-r; ---------- ANO - RETRACTION LIMIT swJT~ ~ """g,.j_f 164 Cl-34 I ~ I I '"" :, I LIGHTS 57'- IG .,, 416 12 I I 1 GEARBOX ~ ~ T.R.G.B. ""' CHIP CASE DETECTOR GND INST IF•f----' LlGIITS.tF•f----...1 ~ t CASE GND TERM.~ 8 ~ BO 166 166 Cl· 36 1, .. , 2 : ,:, ._,!04"'-ol@ll"'~__.14:,_R_ELA_Y-, t •574 1H : 1 --• LOW FUEL LOW N,R,6.8. M.R.G.B. T.R.6.B.. ENGINE JUMPERS! It:'.::N_1 630 TO RAOIO 1226 I( 1 105 .:iu I'- 14 0 • 1403 .A, I , AUX FUEL QTY SENDER QTY SWITCH FUEL OVERTEMP CHIP CHIP FIRE WARNING j'----8 :1-.,..,+R·.-1~6_.,___-;t-1,-.1~&....,__c1_--1~2-1---ts-- "KEEP ALIVE•-"'=- "' •~~..:::::~R100~ 576 :.' I ~ -I- :::- ;-';- -I- ~ ci!~~~T - 1~:mr~A"'~"'~-3-,---➔-'~~ ~~:~ TRiNosccg1VER { -~&iill•llllllllllt-=:::;-----::~:m,o~5 7M 1~ 176 :~~ :: : ,11~ ~ J ·;~ .:1;:i 5! ~ ~ ~ 5lf.~t~--:;-i:l-t-_~sw-1_if_H_Es~ 19 d'~~, OPT ~5~ !E;J -•• ~ , _,, ~, 129 Cl•l9 5 r'jAVIONICS @y_ MIN FUEL QTY SENDER 5 ~ ·- r -TERMINAL JUMPERS I I I ,..---------t,-t--+1-+1-tt-' I1-10---t,+--, 470 L. 58 ! - I r;:::======:l:~a:m~, '"--------- '-r--t-ttt-------~ 31 tyrj ROTOR BMKE SWITCH 61 •~ r-~-1 ~ ,... WARNING LIGHTS I 576 "2 I I 470 1 21 : r NOv---'RELEASED M.R.G.B. r", I MA!N ROTOR I., - TERMINAL BLOCK 19 I Cl-15 COMPASS!s'I--- POWER OUTLET•• 471 131 MC..,....,ENGAGEO OVERiTEMP SNITCH ! tf.RGB-~X- : ..,_6_9~5-------i,I ....fill.... l t._ ✓c 1B Cl-14 LIGHT~.. -2 626 62 577 --~ 2 ~TECTORJ 125 TO OPT'L ATT HOR ALTERNATOR 199 c2 l I jl j 626 > I•• \ ~~ERNOR _j ~ AN_!:~IR G~-;;51411 1, l!:::=::::::::::::::::::::4::5::::!~_:'.SW'._'.l.'._T'.:'.CH:__p~2~0~4tfc2t:~26[t===lz2~04(_ TO RAOJO r::::J m \,~CH "lJ , 630 ."~,VALVE f="' .o; - • T&liS]!!~II• 1::.:-,!-5~13~--------------.,..,!!"!"'""~s-t-.~"';-1---H:;;;!6.-3► t½:i;is••t~:: I ~/;l/'~:.{:::l: I 576 i1'i ll. ' ·•I fi2q '11~ I so~:Om :iii :ll~;.. .____.., soo ;;;-;62"l" 125 C2-23 CIRC BKR 125 628 2 29 ~--5.._76_,I - ON 14 3 1, I 1 52 Cl-28 ~ 22 22 ----~LECTROSYSTEMS ~-•-: 5 Cl-4 "- I ALTERNATOR 58 Cl•31 r T CASE •I~,! ' 22 2 Cl-! GNO .,,,, ••11-=--Hf.:=,. NATIONAL 3 Cl• 2 '° 507 _..li....: j 33 AIRPARTS 129 ,,;;.~-=4~5_ __. IICHI l H.R.6.8. CHIP WARN, LT 638 {jg RI 637 38 I 3 Cl· 10 II I 2' - 24 23 ......... ALTERNATOR GRN '•i' 38 ; I ,, ICOUPNPSOERLE 12 Cl· 9 13 12 ,- 1 1 ,,.-r--7-'--~----------------,, 637 C2·12 I LOWER I . 39 ' :;·,, :, 36 I ltlBLK ~1t~ 65 L-GR_o_uN_o_.~1~::::::~l-=3"5B,,2t.,;;~~~,;,;:.,;;:~~~::::t~l:5_2~---~•-•·f_R_~_~g_~_~+--+' :~n"JtuECOK~RO~F:WITCH 629 11-,::_ I 580 - I 38 h:I - ~"' ~;;; 11 121 BATTERY SWITCH ~ r,, 561 37 121 I I - - - ENG FIRE ,------' ~ C604 rl' '37 37 c1-21 121 lv•m -zoii°l 23 ,1 BLUE r----i I WARN.~ rli-'RED C696 T~~\~t:E -0:TS!DEAIR !i!lREo :~~~•~15 ,,. ._'-_-_-_-:~::::;;;;::,:::.:c6;,54;c:!1j.3_;3~::::1t1,:20'-,5,..·::::;;;;;t::r~,-:--'. I'--' 629 507121IORANGE A942 E~lOCASE ~265~-- AOII0501AE1'7'=:!.111+ ~? 39 c'tR~AIR- r.;;="l'<--.::15::53=-....1l554'2 '"LACK CARBON TEMPGAUGE 1151REO ·~- (CAI ,,,. 471 Cl-261 I 1141471~SHUNTIF14"'83'-r++IH-ll+t➔r111111111111111111~~~50J7,931 RED ;ALTERNATOR A039LEFT~GNi I ~I l!J llil 1111-1 TEMPSENDER FlREDETECTION fClAI 1555 I 131 YELLOW ~~~~~E 141 : :6:BLK [1)~~~1g~~~= ROTOR BRAKE WARN LT. - _,l_ __ I -~ •·· ,!07 11 199 4 YELLOW I CONTROL POS1TION1 R : fu~p!-~...., I I SWITCH cARBON MONoxrnE wARN. LT t __ , ~ . 142 ~... ts341 > 4 , r,.. ,s I BLACK I UNIT uGHr , "! AlSlA cD ~l:::================::t:=~I 587 151 I WHITE ! _j' 1 DIODE l AFT 114 I m,•g.r~ ACCEPTANCE 17 I • BLACK I BATTERY FIGURE 14-1 B66 33 , -- r ·• 66 Al51A BATTERY RELAY INSTALLAHON I ~: : 1226 ~:! ~ i',, 65 .J)IOOE:~ __ __J ELECTRICAL SYSTEM FJ>Hr:iwN\R 0LtiV1~RJ ~__g_, - "Power Outlet• circuit breaker '--PROVISIO; roR RADIO SCHEMATIC * For 14-volt R44s with C059 Rev AG and subsequent wire harness, is 2 amp (Raven 1!) or 10 amp FIREWALL/CABIN BULKHEAD- "KEEP ALIVE" LED map and dome light, and 8395 console light dimmer. (Raven°· AFT emERY rnsT'L. (14-VOL T) 1226 Change 13: OCT 2006 Page 14.17B ROBINSON MAINTENANCE MANUAL MODEL R44 1386 591 Ir--;:::=.----=::=::::;:----"s--------;:====:---, 592 I 0359 I D359 I ( C: y I 591 p.. REGULATOR REGULATOR \:l::S::IT-AA-TER-=:;,WAR_N___L_T____. r - - -, 804 tr2-1j 803 44 801 71 -· .,--.-; - ! ,!J ~ ,-z.L_ A039 RIG111 (mj CASC ~~~~~OIi ,; l VERTICAL FIREWALL/ CABIN BIJLICIIEAD TO PITOT SIIIICll __...._709.._-1----------, :: TD H[Al[D PITOT LOW OIL PRESSURE WARN. LT GHl~ll't------'', 691 ,C---} ~ U11l1£ rs i' BO(ORANGE) ~h- 591 I 4 69 ~ '1 lD8 1386 i-a~~;:'"':"'~.----;;;..;"1H1-'~"'1"":~"'L'"~:"',~:::.,4--1-++-=::,..·:---------, 6 ~n I ENJlJlE~-,..~,75:::0_____, rl~ ·r 11 ::~ ,. n:•:1 ~:l"'-rtt r----------+-:,_,i8~;'-fl.o._RH1 ~.. ~~~[ (",. I ' 'i ' •111---'Kl-=l::2'"·2,._-I ENGINE "'-,. ELE~~To~;~cTOR 591 I lr., t l r----------;:~:~~....+ ...,>+_-- To UT 591 ow , M, , 00, T I .____.::;BD::...,.L~.~~c:2:-1~8~====~;.l~+--"-ETE_R___ +___42 __1---, "'110t 11 690 1111m c :sz,.:=---t--t--'7-"51---i..----, • :$I ~ 1-"-"~-11_c.,__....,•...•..,i1-o1_,..,..._____':_-:_:+-:::1::::::::::-.1 81 , 1 c2-16 , , I , I ~ 688 '-----r-;=====:'....+_!!1s!!]o .11. 111 ENGINE nit~~"° c a 591 ~:! \ STMtTER rr=-- .;.;._ I 1-:P."."11~1£~--...!~•~·r-l•-e_?________.,1,...,IIH=IT,..E_.'I_., '"------~aa!....~.,.-1....c_2..,-1...7+---+-..• .... ·-----------+--~I.I I ,r---i--~ 6 • FUU - PA[SS. ~II. NC l I l MP ..._,..A7._,80:::.-·2.,l_;,,0. .... B•m•• • • ... I I C2•10 :1 ,__ _.s8..5,_____,._....,_400~==(i,siito-,itlor.....i p • ,u!t .. ,_54 I •11-rr .,, n I : : 89IBLUEl 72 r c2-11 l io8 1386 .... a ao1rniA1ror•li-r1 1 •Fn - I I I • .._ I 83 J. C2-1S I I J. fl f.--=r]"' AISA I-t:Ll,..~-1+~·~·f_100,sAE - - minw11111m ;~ 492 R•;n r;r"! m j L--------;eg;-'1,F,,rtc~2~-;24~1r--~.~.---------;::=:l:t:l===:::t---:R;~--, so " •~!~~;::::, ;:~~ : •II Kl12-2 CASE --~ TACH SENDER 41hl~ i DIODE :;J~-- " ) ~I:ol:~R tEJ :•~~;. i; !; ; V c2-1 , 163 \,.I es • :: asco•ANG£1r1Tl RFD ::=: I : Al~DE ~~;: ~---7._,&.._~. 1 1 1 1": : LOW R,PH ·GREE• 14 t PS (ORAIIG£\ 1---'8"'5 _..-+-.at2=.·.a20a+---I____J-r-~-=-=-=-=-=-=-=;:{~-=-"=H{~t-~t-~-=-=-=-=-=-=-=-=-=-=-=;f=-="";{~-=-=-=-=-=-=-=-=-=-=-=-=-=1f:_:_:_:_,-:,"';-;-=-=-=-=-=-=-=-=1~1f=-=-=-=-=-=-=-=-=-=-=-=-=-=-l1~-=-=1f=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=~/{=-=--;-,.:!.'..:J!8•~l~Mll~l~Tf~)tl2~1~!:~a~L~UE~.f"l"7 LO~ RPH I NOSE BATTCR'I • IU)S,£ BATlER\' • LIGHT / 78 r1T1 ":T""I w,::w«:. ~=•~£lll~01;1:!•~5t·~•:ie~,.~--~-,μr~w•~ll~T,;ic::::::ir✓-":84--:1:-11H""'cz,_-.:al9'"t--t1'-:'----"'1 I f,J) 83 t5 ..... •.__;R:;;:6'-'fB::,l.;:;UE,..1'1:";-j·•.,..1_.,BL,oK...-L'.J SUID[- - l11s 78 ~~~~ GREY 181 16)\ 633 .... 16 [NGINE LEFT n RtD 'in Ll~~l RE~~- J :: (C:YI ·-·- !_!u WltH :;:,, ::: ;::~ (alll() 86 ~ ~::! !: 164 164 ij -y A§69 BIA[f 191 t I - 70 C2·9 COLlfCTIVf SWllCH 166 584 [R:::E:~0£ t •.2 •. ./ BI.K z I......_ YIOIH Ill 1633 I I 76 CZ·l4 -~ ~1:m: 80 IN PWR 001 [ -;--" 011"" n••NGE :iv ; 63 , lr-::st::oo-::s::c~L~T:===;j7...,1~s~c,;2-~1~3+--+"'-~.:.i."'-:::.:7.: GtrJ ~= ~•~_Ey 111.ucoPTERI RET. ,, CASE GND - c,R :i , 580 (A780-Z31 TAIL na LIC1!!_T wA1R11 !!,INnr. ~l ._____~:::::::,J-~;B~~~~~~~ii;~~;~~~~sw~·=••=1 •'::.---":.C: 11 ~;;;~:!1:0~6~~c,2~~4~j1-:-:_:_t~J.:~=L=====flll.;;•;-;;~~~=j~~~=tf::iiii:i~~:----l!!!!--~I-----------.J- i"fi- A708-3 CABLE ASSY w !FJ..l r- • 105 c2:3 I.':""-:: :it.:£: I l4 •• , ••• _cy~E:AD I-!!!. ..--'-•...1-➔-------_., e120 79r- ....,.,_ - - - - - - .., • .,, 101 c2- s 1a1 L • c « - ..Jl1 11 11 cA~~sEhD£R - r T, r-t---t-i-------~ I -ENG on r-.1 1386 ,-...!:"!...___..11-;:;;::_-:_-:_-:_-:_-::_,~.t,-1 ~ , 1 , , 934 .. 1 1 34 •Av us __ .,,J..,__..,1..~1.....,,.__+-_.,1a;:;•+;C;,.2·:.,2,._.._--;,....-------+-1+-l-l+-li+..+--h , 101 110 I T 109 .. ~ 7 .,jj:!!!:UI' TEl1P 109~11 1 ·::,,• 1 ~' - r,...•-'·----;;::::J:i:"':ltC:i;;~r I 839S 12 1121 -1 ~ ~11 SWITCH 523\. 104 34 Cl· 17 34 - CASE GND SENDER RIGHT I.ANO. LT ©f ~' - 694 lC: YI 695 GOV 'OFF" WARN. LT • "°A I CONSOLE 131 11•2 ljr;:::: - ui Cl· 8 I 92, 12 ' ~:~R 9264 8280 RELAY 1693 r£ I LIGltTS 4; 93, ' tO Cl· 7 I 07 4 TlllE OfLAY COIIIIECTOII ASSEMBLY ,J. L_""u I I ~:z'::U w1R1••>-.; sn l ::' ;:n c; ~l ~•s •: ~~:: 111!1 ~i I981•rc-":t._:::r_'--;.'T"....,....,,...,.J ------ K LT 111 I 133 I' _... ,D1-R 93 128 1 I I 138 ~. ,... J.'" ~ - 9612 I BU@f ttoc:~ r-T• ' 33 '.) 91 I 90 C2·30 us 5e2 ,,n l 89 • fi., 94 ,.r,-:--- ,-------] GND l ;211134 L ______ .£1'!!.~", , , o., "'• IIIGAG[ 91;:\•' ..-9...l+"C"-2-..,3..1+---+------_., v •• , :::"~v.~•;1.5 W g711; t REOIGEAII- ft.135SH ·v •· , ✓-~• ;.. Ill CLUTCH "',, M C2-32 I 1°' .....i#-+1·· I . it' r+l~----,;-..-;~"'J'1~➔t1➔tf-,"'_"-,'4.t!:::·1•~!l. FUSE ollil:;; lli ~ -T- lllTOR r:-'lt£ST + !3• I 137 137 I 137 - 'Ji ~- ' • SWITCH 28 C2·27 112 ~~•-;:I1~r; A"::O~T~ 506 'TAtH -f; ;:.>;:;:, :;;~·--' r 2 PUIG ,--7 t C021 I 'L TAIL ROTOR j' 47 IC: RI 5 T.R.G.8. CHIP WARN. l T 60 IC: RI 57 LOW FUEL QTY WAAN. LT 57 58 LOW FUEL QTY WARN, LT TIME DELAY IE==t~93:!.....-H+;:::=-::t1n~,47 IC: v I 92 CLUTCH WARN. LT 46 H.R.G.8. OVERlEHP WARN LT. 198 IC:YI 199 LOW VOLTAGE WARN. LT cs H.R.G.B. CHIP WARN, LT ENG FIRE WARN. LT IC:RI 637 638 Page 14.18 -- 9l I 92 "'90 c r' DISENGACE 138 C2-3S I ..--_ SIIITCH 583 RlUY .• Ellr.lllE l ;w CASE 1- ... - - :, 98 I use r;::::;>,j"j 98 1 , 101 ~ RIGHT ~ • GIID M M 577 Cl-37 ~ : , .. ,. - ?JQ._ TO - -~ HAr.11£10 - --,U• ., NC 11 ····L;;"J IE I· 583 •2-• 66 _ 1-- 0 -~. 104_ 1 .. ,1~:li,1,;ym.. _ cycuc ~.}_r;Jl ~ 1un s111£ o, •u1conui c 99 ~• GEAABOK I - ,:R.G.8 8144 INSTRUMENT CLUSTER •• 199 ,., I I .....ll!!1- I J ..ll!.. l 115 580 izs - 121 ' 67, c2-29 MAP LIGIIT sov CAP. "" '•': I B::fj ...___s.,,06==--+-o~!. cos, T r"-V.. 4l6 ,;;-n517 Eb 56 •C 2• 2B , 14Z 1 FUSE lOOMFD ;:: I~ .- <ll 1,j1 ~ 10 ½t.J 97 1ft ~ 5PRINGSWITQt£S :, tERMtNAL.JF L....J.,.!..i'...-.,,-t---1>-----t-,-2,....-•1-•,1~-"'1s"'t--➔..--------"' _LllJ2:§8J.!if;J__,-jtffil"..,_,n,i_-, ; Jl__ CONTllill.LER ~, II S8I~ L.l!!._..l_...;9::---;;R:;:CT;:R-;.AC;;T-;.IO:;N;--:L;--:l:H:;IT;--::Sll:;l::TCH~ • JUMPERS -. " - aofaJlli ..... LR 164 2 10" _.__ I LANDU~ 572 r, •17 rzn, All> ~ I . STARIN 1 164 Cl-34 I 11 :r 1~~1-, -z.,-r- LIGHTS ,II 57;._ :v, : ·•I ~16 ,1, 1 I -- __ ___J ,.- " CHIP CASE DETECTOR GIID ~121 I sn1 ...~ 501 m=:~~~~---11:'ttl:t't:M:~204!!541 ~ 168 L7 ~:N~T 1:7 ;;:;l ~ ~;;~ liSllilTCH~ ,.;)io: l .....,:..~_,Li....,:,to-7-t-~ -r :i:~~· ~: .5 (NG OIL PRESS.5£110£R L::I_~_o• ~: C:95 :TENSION LIMIT SWITCH lug. I J RM.- 1 ~ SO 166 1116 Cl• 36 u~ , 2 104 > 14 RELAY tt<7' 'II I --- LOW fULL LOIi N.R.&.B. N.R.G.I, T.R.G.B. [NG L[:~ls,IIIF~I-----' PERS :=j-r'll_j,'1μt-::3:~•=~======~~:l.;1!.!6!,U.fC!l·;Jl!,2 J__...LJ!---TO--CntOJ--,-::?:oi:--'l,Lt~-!.1:.U..:::;----:4!l~~~-~V, ~~ ::~ ~ ! I ~AUr FU£L q:• SEIIDER Ql~YI swnct•••- ._r-•i•E·L o~MP ?~ i~fil1,, ~ ~~}:"' Hi:~;ioN g s 584 584 Cl-13 TRANSC£tV£R ~78 •D! I 11 !r . !) ! ~ ~- !;~ ~ 0 , fr:L--:j+ffi-t-=511---1-ICH_E_S_ __, ILi,l SWITCH ~ HAT 31 31 Cl•l6 ~~"li',-_,H,t+--t--t-:;·•l:::'"i 5 r: 2 rt-'l"'l"iiii'-::'--i ,~ ...... 129 t' CASE '"" 129 c1-19r-1-1- 11 ---L1 11--'-19'-..,.51bl d'"t.!An'lrrlics I MAIN FUE~Qn sCHoER 5 • : I(" .. . I r I r-r;_-:-=-=-=-=-=-=-=-=-=-=-=-=-=-/t~-+fftffs , '----+-+-, •70 riBCRl,,Rf.UEIRTS .,. : l - - TERMINAL JUHPERS I I , = 31 ITl"1 ROTOR BRAKE SVITCH 61 r··coor, lr-Y '~ WAANING LTS I I I 627 "2~ I oo 2 ; ,oo-RELEAS£D H.R.G.I. [ i • HAIN ROTOR 1 16 ~ URH. BLOCK I I r-------,1 • OV£Rlfl4P SVIICH • G[AAbOX • Iii 47 ________1_9..,c_l...•.alS::+----1~ c,01r,ss - ~ ·zsv· I 28Y. uv I u• :1, I we- "1£/jC.\G(D - IH.R.G.B. CIIIPI 695 ii l ~ 18 Cl-14 Ll(;,(T '~ ·, • -2 1 CONVERTER : 577 .--+-+--+------------"2- T1 1 DHltlllll m !2n00PTt.RAGTTY110110•......, I ~s ALTIRNATu,11 ,..:a19.,9+--c"-2-..,1-+-"'"'"f--.., ,..ci:;_ .! 626 __μn• ', \ ~SllvtlRNORTCH lr-+-+--+---HY-O_Y_"'_YE-IPO-.~-.-CL-o•_E_D_J_, ~ if ~•.~,--j l - I 2 I M4 • L!:::=·======--~sw:1'..'.::CH:_-1112~04!!.JC[:2l;_·2~6LI..-....!-~ rn RAIIIO ... - f. POWEii OUTLET I 577 \ftfl OFF - •• • \;, ~ 10 TUAN :;;667 11, ~f... 1513 Cl-23 llGIITS L":,: J TO I I -4 &30 '2T, °m.,.;!1- COORO. • 11666 __ 1 • TO OPT ·•I~ AUTOTRIN~~ "14Y• 576 tli 1 <" I 629 111 11 ... ~OO fi11'i' :=, -- I 125 C2-23 :~~r~~: 125 Cll!ITROLLER 628 2 29 L- - '-'_'--_.-+-11--+➔-+tL..£!./'"_. ~ 14 'ii~D-SOUnGID l ii I UPPER CONSOLE GROUNDS I ROTOR BRAKE(ev I WARN. LT. ·•I ,I 434 I•• SZ Cl-2S ~ 22 .,,--~LECTROSYST£MS 5 Cl-4 ~ 1• AI.TERIIATOR c~,2258 Cl-31 r 2 ~~E (i~s A780-l3 ... SAT :~~:;~ ~ ~::: I '1 5 7 I '.] ONLY) ◄ I ll •c,i=jaa l~~~sr:~:S 13 Cl-10 II I 23 T ., ~ OMLI) 12 Cl· 9 l3 12 637 C2· 12 1 152 Cl-24 38 Cl-20 37 Cl-21 152 65 C1·33 65 471 LOIIER .cousoLE r 'GROOIIOS I I 14 507 NOSE BATTERY SHUNT LOCATION 66 22 9391 i~- f,11"s?JOtn~~/WJTCH 629 1 I SRO •• A1ao-zs.(AneA1n 38 f.'l - :=i J: ~ en -.-- E s01 • ,A,a0-29(TAILBAIT) 11 ,2, 1_u ~ ~ ~ !.11,..11r ...-""- • uITT1 awE -----i--i 110 --~-• 1; + -.- 19 ~A• ,..,._._._____., 11-so1871!::011RAHGE0E' A9C2 : v E; c.fN5; 2265~-- ,. ~ .;,.l,111i::J ti I If ,: ,t'O:•~N:R flREDE1£t110t1 ~ .,. ALTERNATOR I A039 LHT W''· 3All'FUSE 3••·:;~Ci• I IAFII ,,1 I U9o4 • YELLOH I CONTROL POSITION I R (TAIL8ATT - · ~A7 8a.z (AFT BATTERY) SIIIICH I ll 5 1 8lACk I UNIT , llr.Hl 1 • ONLY) ~ fUSE -I A780-12 (IAILCONE BATTCAY) PIN •6 roo M:CEPTANC£ ·~ j TO OPT l2Z6 • ;j', ,y / 1TESTING ONLY - - -- EQU1P-"'6:.::6=----1+-1-➔ -4l~b!:+~.;.,___.J:: t.~5.i'l•~mRTRELAY 1Ntt~\EA":10• .,. FIGURE 14-1 C 11 J • j ELECTRICAL SYSTEM ··---------------· -----~ flRlWALL/CABIN IIUUIIEAO - SCHEMATIC (28-VOLT) Change 13: OCT 2006 ROBINSON MAINTENANCE MANUAL MODEL R44 1386 591 Ir---;;:::==_,:::::::..,::;--=--'--;:::::::::::::~-, 592 I D359 D359 (r.;C!;:A:i---1-5::;9~1--lh• REGULATOR REGULATOR \:::,:S:tt_AR_T_.ER.....WAR-N.-LT____. i-- -, •11 1 S04 1 :..1-: --, t. n: d L....!::.f nj " LOW OIL PRESSURE IIARH. LT r- 803 y WHITE GREEN YELLOW RED 801 le ;-t so{ORAIIGEJ I FI 81{WHITEJ I EI 82{BLUE) 1 NI , 801 802 72 71 r'I•1' r C543 CONSOLE ELECTRICAL CONNECTOR 591 -r-Cl-3 Cl•S CZ-25 80 .l C2·18 .l 11 .a. ...ccr .. DOM£ ~o:LIGHT IC: I 1 I I D6D~ ' MAP LIGHT • I ,rin111 121 •120 2 -- t 5 UL- 750 CASE GNO,.I, VERTICAL FIREWALL/ CABIN BULKHEAD TO PITOT SWITCH--~7~0-9 -11---------, f'-..I '- ; ~ ENGINE ._ r-- - ----- ---- - .:t : ...------➔.,-=-4 rA.!.I ORANGE BLUE I NI 802 1 Kl 1 83 I l (WHITE) I 11 I •II A212-2 .,, A212·2 CASE --~ 142 64 BROWN RI 491 BLACK 1 ,l,73 I YELLOV/WH !TE ; C I I 492 B9 I•• RED WHITJ:' It It I , (BLUE) BLACK LOW RPM 3 ' 87 I :· .______n._,:_·_c2._-..10-t-_-H,....---------1-+-. II BJ "I C2·15 1 LLJ 72 f C2·11 1 I I. 89 I I C2•24 1 V C2-7 85 C2•20 163 It i., 83 80 89 85 ; I •l WARNING I 4 I I BS (ORANGE) , I '-::iw:ii!~~n:J:;jffiifi:==tw-~84!..•H1 ~C2~-lll94---l*--_J I UNIT I- , .. , •,.._ I 5 I R4 OtHITf. 93 WITH BLUE '6 I 1 86 tBLUE1 86 I : C2~21 ... BROWN 7 I 632 V C2 • 22 164 I, STARTER 633 1-35 lOV I STARTING HORN ~ 'i 105 C2-3 ~ ::JLC"'I ~ = BO(ORANGE);'ifi RED - • 81fNHITEl•2• : BLUEor6REENU TACfl 82f8LUEJl3 1 I ""'" I SENDER :: 85lOAANGE\!iTi Dc-n 84/WHJTE\121 1 BLUE orGREEN I ILOW RPM I 86<8LUEh3 I I BLACK I SENDER ---15 I.! 164 ijENGINE LEFT ,o ra MAGNETO , 1,. (RIGHT SIDE RET .sw CASEG OF HELICOPTER) 121 : 145• BLACK 2 : , 31 i 1456 IWHITEl I 31 i 1'i'r 1454 CREOl 1'i't 34 ~ ......_..14,..1.__-+---------' ,¥75 78 L°;~:' :~. ::: : 631 ,.._____10-+__C2._·..9+- ➔_.1 coi1_wrJ~H~'1/.1f' 1661 584 f ~08 6STRDBE [ - ORANGE !10 634 - 75 C2-l3 ~•• :III! WER SUPPLY •• :,.~.. ~ v10LET e_1,!_~ m , ST;'NcJ::...: .__1..;:-1-c.,c!-~=-!4+--+-. -----;;;,,.111.,.... 106 VIBRATOR eo IN IIRf"jo~ul@r_ mo :9, ;:..::.:::_- •"t:19~ - I I ,., ,VU:iJ Wl!W ::: ~:: m I 107 f!!- :~~ L ... I ::lT 10: i,l ill =U// 11 r5 , 11 -· -CYL HEAD ..~DTEMP CAS~SENDER ~ENG. OIL ....lli!L RIGHT LAND. ~ ~LAND. 'i' LIGHT 44 ~E GND S~~~R r-+--B-280_R_E_LA_Y_::~;-:;,:lliDIHC;:-I-' : c::LE ;~; :::; ,,. if-- ~•;.mws~·m'\~o. I1r--1-.....:~~·~+&~l:::.i:11~-+-------~l+.U.I-UU-l-l--l34i._________________4-i.J.i..:::i.-======:a::=~~:::..J Ir,-g,-"'59:!.~':;;:,"":~21-:...:.::.::.:-t-1 At~~ ASSEMBLY . f6gJ l&- I LIGHTS t 41 931 I 11 10 Cl- 7 1 98 4 TIHE DELAY , ..., ,.,.....1,., ,1,. 1 Diff,!ER 1 5, 1932 c.w <, 95 1 .,. 416 c1-22 1 1 9r1-i1:':3a'--1L.-~--...J ---- 694 rcu 1 &95 GOY "Off" 1/ARH, LT A072 ss~o;; sn I I 6 1933 t <l ~ 95 cz.33 11 138 s02 r,n • Lll..:.L. ••• _I94 I - ··s •-,F.,'BLK·---------::i CLOCK LT t33 jTj : - •-'-~ fJr:'i",fo"L "---i-++-11-t-""---O~. 128 1138 Ill, 90 C2•30 111 .-.T1,ss " .._..,.__._~,.,.--.--~• 3Ul'ili...L..'.::' - " ~,1 II GND-1134!21 I I•· __________ ..,r .~-~! ,';.....~;\ENGAGE 91 I :: ~::: I 104 I 138 .... ,l ~ r+11+-----,-~!J-/lu""~-1/,_r~~f=-'r~~;4;3;-~~,.:"1~f:~1·:s;,.p ;;:gslll~ 971l''RED~ 1,s.s_lTEST l +o.7 m ,3: , 137 , 137 I( !J 1,;r, ~mm a1.---+-=-=+----------- t ~i}- 1~. A999 MASTER 506 1• FUSE • ,- -· - -· •- __ .:.J ..... 1-t¾i PLUG I'-+--~ -- I 9 , 28 C2-27 12 ~- LAND. us RADIO •II ENGi E 'TACH CASE I - N ~ ~ ':I .. 11 I 2 1----7 I CO2! : TAIL ROTOR I 47 TilB. CHIP WARJL LT 8144 lNSTRUHENT CLUSTER 60 IC:AI 57 LOW FUEL QUANTITY WARN. LT - 57 I I SB LOW FUEL QTY WARNING TIME DELAY =147 144 /ii:;=t~93,_-1+t-==-=-m,1II 15s2 1' IC:AI 92 CLUTCH WARN. LT 46 (C:A I 2 M.R.6.8. OYERTEHP WARN LT. 198 uiiiviJLTAGE , ,_. WARN. LT 1"1~-.-,"'~'---' H.R.G,B. CHIP 1/ARH, LT 638 It:: RI 637 I 580 36 :tt1~~ __ mz J r 11, RED ~696 ~ 15 ,12 IAl61" .. CARBON 1"11a;;;:::A~,"---""15"s;;.s--' I ,31 YELLOWIHONOX!OE CARBON MONOXIDE WARN. LT '$' __ , TESTER 638 141 142 1386 114 115 580 93 294 r~. a y' DISENGAGE 138 CZ-35 I ~r: SWITCH 583 RELAY RIGH~ 5W. GND I~ - 1354 r;:::;>!'T1 98 901 94 •77 Cl->) t_ ..-~le.II· II --.W..li~- TO .... -f.i MAGNETO II• ., I!!; 11 -- II, : 583 C2•• ,.... • ·t ::;tl ~~lt- CYCLIC ~.":l..r::!l I 2 (LEFT SIDE OF HELICOPTER) C •• ~ Il.:66~•i,;C~2l;_·!!284-_ __!,.,,..-;:66;;------1t1tttt-i1-fll 1D0 HFD 115 ,._ 4I Sll I ~ A 6 416 125 122 127 !'- 142 (688 ~ ~ 50V. CAP. JO 1 633 131 t :L B 10 p :--,. 97 h'C NO SPIUNG SWITCHES NO I 67 • C2-29 1.0 "j;Mp 8304•1 103 I - 1 176 !2:; I ~I -"-2_ 5! --121 CIRCUIT FUSE 28 j 119.L.J, ~ 29 ,11 I A • 506 0 t....-t ~ I ~~N AlSA :0 EXTENSION LlMIT SWITCH :I ~ BREAKER 7? J( 112 I ffi - ENG OIL PRESS. SENDER TENSION O!ODE • os - 139 66 6 lsn SWITCH LT 127 C2-8 1!!!...E. Cl•6 L lS ~ CASE GHD 9 Cl·tl LR 164 128 Cl-18 1 GEARBOX I T_ ill T.R.G.B. CHIP DETECTOR CASE GND N:.ns!fiK I 11 ~ti:1.i•~LJ' \ ~ I~~ 111 INST lil~"'t-----' LI&Hrs•;;~~-----1 1~ ~ 'i,'Jo' LIGHT rGO~~~=OR r., I 58~ : ACTUATOR LJ9!9.0_~_c~-J!'•_c-;;;,;:;;:;;;;;;7,~7u~,;: - ...:.s.....:-?1--t==-+-. 6!~8 • •• ~ ; :No1NG .,,1coNTROLg; ~1 ! ., m qr; L__________ .... _RETRACTION LIMIT sw,T~ TERM~.- 3tnaajtlol I ~ I I inA :"I I Lrfjtlf 573~ IG I 416 12 I I .---------------------' .....fil_ 8fO 17: I 2 : l 104 l 14 I1574 H I • AUX FUEL..t.olv SENDER LOW fUEL LOW ~v:a~E=P M.~H~PB. l-~e~;••· E:~!:E WARNING JUMPERS 'KTDEEPRADALIIOVE"-lliL ~ J ~403 576 ~ II • QTmry SWITCH FUEL -L- -L- LIGHT 1'o....j.l!...!.2..~----1---1-~W~!=-i~-~...J 67 '-A045•2 DIODE ASSV. ~ ~ !-L-i:=i • • J -L-•1 -L-'i CIRCUIT - I A661 ~-=-----+- TRA~~C~VER { !~II• f.U~.U,U.::::;---~3zNJ4[no~5~ ?Qn 176 55777B :~1 I ~:;; ~ :; !1! a !'l'lo ,!1 TEST 164 c1,34 BO 166 166 Cl·36 R 16 16 Cl-12 634 IGNITION L,To.... I •11 _ :;~ ": • .,... ..., "' -· ii ·• - SWITCHES SWITCH 19 d""lz• DPT ~I 57;o'l.•E j I 52 ~2~~ !: I,(' -'• i CASE GND S 584 584 Cl-13 BAT 31 31 Cl-16 r -TERMINAL JUMPERS I : l'"r_;::_=_=_=_=_=_=_=_=_=_=_=_=_=_=11-~+=-*l-tl-tt-tl-t1~71 r-77 ......,-0--5'4-~ r---(_t_VI_ON-IC:,S MAIN FUEL QTY SENDER 5 •• • - .., - I I 'T I 470 31 ,1r; ROTOR BRAKE SWITCH 61 r-~-,119- - WARNING LIGHTS I I 627 "'2 I I 470 121 ! c N0'9'--' RELEASED ,., H.R.G.B. ~ i I MAIN ROTOR W.. ' ,__ TERMINAL BLOCK '+-+-tt,t------' OYERTEMP swncu I GEARBOX 129 129 Cl•l9 ii 1!4ll7...Elf'--+-+~ 19 Cl·l5 - - \11 :1 zuv. 14V I 4n hi : NC~ENGAGED L I M.R.G.B. : '-'6"'9"'5--------i..lll ~&o ,.. l ~ 18 c1 .u ~~isl.!,,!-;~.~ ~ ·••v· _, ii coNvERTER I 577 --~ 2 7T · 4TECTDRJ 125 l~D0~1~\~~~~20,R L.!:::::::::45=====··=!....A_l2~:~~:.:1.:~:io_R_r1"1209;~cr1ccI22_:J...21@"6!:::~wir:. TO RADIO '1''.._:_'..~ POWER our~::.. 2 _J_fff'_ I --~G~il~~·""'' HYD VALVE ~'..-1 • t--f2, 667 ---~t~-~·~•111• .. ~~: LIGHTS l~ ==~ : .. n \.:'?· .. w; : ◄ lt---6._3o._,•,..2'+-l~I-I f~ i i ! z TO TURN'''""''11• "1,.,.,s,..1"-3---------------lf-is;;l;.31-7-Cl;.;·-.=Zl.+--l-'ffi~} TO OPT ,t.Jll.26 AUTOTOTRI" ·zBv·.,s ·1•v• 576 II' 4 629 1• i I HYD .,, .,, soo i;:,T1_1,. COORD. ~ '- ~=; ~l~;; '"" 6 AVIONICS •I,- CONTROLLfR~ 29 L _. L-.:._--1-1-1--1-1-,1 576 , - OH rt--t---t-----"'---,t,;-~-~ SOLENOID "I'; 3 ;; 1 52 Cl· 2B CIRC BKR 125 2 14 22 L-:=:---======_~_-_-;;;:--~:..~~•~!~-_j 38 31 5 Cl-4 r~· 9 2 "'- l~r~ATDR '~J22 .. Cl•ll _ .....cAS-E-•1""1=r_"+ (GNosr• 13D•AMP II 2 Cl· 1 . '1 GND .,,,, •II o ALTERNATOR 3 Cl•2 50 -¾ 24 33 '(f FLD 8 (OPTIONAL) 11 13 Cl-10 11 l3 z, IIUPPER 12 Cl· 9 12 GROUND.!11----"l,',52,+eC,,.l·..;2;;4+--+~1"'5.,2--tl••~:~:~~ 177 HYO CONTROL SWITOI 629 ICONSOLE 637 C2·12 .LOWER I~ 39 38 Cl·20 Ill BLUE OFF I 580 - 3shTi _ ~~~ 1 37 1·21 I I p '° '° '° 00 I 39 -'" - CARB AIR NATIONAL AIRPARTS ALTERNATOR (OLDER R44s) r.:_••l!--33-4:"'-:ir"'l!!".,::;,, ___.2.,_3_ ___.,- OUTSIDE AIR TEMP GAUGE 65 Cl•33 D!> I'--' 62~1 507121 I ORANGE A942 37 Cl-21 121 IWHITE~I~ 23~11 ~ BLUE _..,1 ~A 434 •lh '- r::--- 507 I ' (~Ar-•· 471 Cl-261 1141 471 LlL.,_sHUNT 1;- 14 ac 0a. 3 ++1H,Hi-!r!H~111-~-~1-~11-~111111J~~UY'le 3 RED I ALTERNATOR ROTOR BRAKE WARN LT. ~ .L..:._ I 580 ~ 507 11 199 4 YELLOW I CONTROL no • ,~--- 581 ,I + -- E : CGANSOE 02 65 3 AMP FUSE ~ODE I -:- -:: ~ IL I J(TAIL BATT. ~ ~ ~ ~ I I I A039 LEFT ~·" I ONLY) -....; rE3-+:l-~H..... I I TEMP SENDER FIRE DETECTION 4 .f ,- 151 I BLACK I UNCT 1 ( 161 I WHITE ! _JI 1226 NOSE BA rTERv SHUNT LOCATION ------ll., 66 PIN 16 FOR A.CCE.PTANCE TEST ONLr 331:~-- P~/GTHltN I !!/J I 1226 ,~~ : - ~ 3 AMP-1 / ~ ~ AFT/TAILCONE __.1,.2.,26.__tt-tt-lil::Jt-+1-+-' FUSE I Al5lA BATTERY ;,- ~~ 66 DIODE BATTERY RELAY INSTALLATION I l I 65 \. I I L! _, ' __ __J SWITCH *For 28-volt R44s with C059 Rev AG and subsequent wire harness, LED map and dome lights, and B395 console lights dimmer. •* '"Power Outlet" circuit breaker is 2 amp (Raven II) or 10 amp (Raven I). FIREWALL/CABIN BULKHEAD- I ·-=. c=PROVISION FOR -;;AOIO ~ 'KEEP ALIVE' AFT BATTERY INST' L. FIGURE 14-1D ELECTRICAL SYSTEM SCHEMATIC (28-VOLT Change 13: OCT 2006 Page 14.18A ROBINSON MAINTENANCE MANUAL MODEL R44 Intentionally blank Page 14.18B Change 13: OCT 2006 FEB 2024 Chapter 14 Electrical and Avionics Systems Page 14.41 FIGURE 14-21 R44 ELECTRICAL SYSTEM INSTALLATION (C024 Revision AT shown) C024 REV AT 2 3 129 111 4 102 7 102 2 72 5 67 5 19 2 70 2 626 628 29 5 105 5 5 200 A045-2 2 28 71 176 661 10 128 626 2627 2626 2690 2897 2047 2895 626 627 2743 2744 3079 629 HYD WARN LTS GAGES HORN START CLUTCH START ALT AUX PWR GOV COM 1 STROBE LTS LAND LT E TACH R TACH 104 2380 3078 5 644 AUDIO PANEL 2916 TO C060 2570 3 1 2 1 2 3 2 3 1 4 E C J M D K L B A 2 1 3 4 R S 2 1 3 8 1 5 3 4 1 2 3 24.92K .25W 2 1 3 24.92K .25W 6 2 7 2 1 1 2 6 2 3 4 5 1 3 2 1 1 3 4 6 5 2 2 1 2 3 1 1 2 3 4 2 1 2 2 1 1 2 3 2 1 1 2 1 4 5 6 9 1 3 2 11 10 7 8 20 21 4 19 23 26 5 8 18 6 10 25 12 3 2 9 24 11 1 22 1 2 4 3 2 1 3 1 2 4 1 3 5 2 6 5 1 2 4 3 1 2 4 1 3 2 2 1 2 1 NO C NC 1 2 3 10 2 1 2 3 4 1 2 6 7 2 2 1 3 5 1 2 3 4 3 1 2 2 1 3 2 1 3 2 1 1 2 1 2 1 2 1 2 3 1 2 3 3 1 2 2 1 1 2 3 NO C NC 2 1 1 2 3 3 13 11 10 1 6 3 15 8 7 14 5 9 1 2 3 1 2 3 2 1 1 3 2 4 5 4 6 2 1 B304-22 ASSY TERMINAL JUMPER TERMINAL JUMPER B304-5 B304-4 B304-20 B304-20 B304-21 B304-21 C2-21 C2-24 C2-22 C2-23 C1-10 C1-11 C2-25 C2-26 C2-44 80 (ORG) 80 (WHT) 80 (BLU) 71 72 83 (WHT) 83 (BLU) 84 (ORG) 84 (WHT) 84 (BLU) C2-30 C2-28 C2-29 C2-31 70 C1-9 C1-13 C1-33 3063 633 95 91 90 28 138 583 66 C1-18 C1-16 C1-15 94 C1-17 C1-5 C1-24 C1-30 C1-7 127 C1-21 15 164 166 16 584 3049 C1-1 C1-3 C1-26 C1-2 C1-31 C1-6 C1-4 129 416 (WHT) 128 C1-22 125 C1-20 C1-23 577 C1-29 YELLOW RED BLACK 1555 1552 1554 C696 CARBON MONOXIDE DETECTOR + – A780-22 A780-79 BATTERY BATTERY UNDER SEAT INST'L 64 2323 (A780-66) 3A 141 142 C2-4 6 2323 (A780-66) 5 637 2 3 3058 58 5 637 2 3 58 + – ENGINE HOUR METER 42 OFF ON 112 138 355 112 138 LANDING LTS SWITCH OPTIONAL AVIONICS B304 CAP. ASSY 85 86 87 30 112 2380 119 LANDING LTS RELAY ENGAGE CLUTCH SWITCH DISENGAGE 138 28 88 137 92 93 113 631 632 583 66 91 95 67 67 C1-8 66 142 152 C1-25 UPPER CONSOLE GND 141 1A 42 NO C NC FULL DOWN 1556 COLLECTIVE SWITCH (HOUR METER) 751 TO XPDR (SEE C804) TO RADIO LTS 108 107 110 FIREWALL/CABIN BULKHEAD 6 2047 95 91 90 94 633 15 164 16 577 107 18 5 58 3 2 637 95 91 90 94 15 164 16 109 2038 8 ENGINE CASE A212-1 A212-1 C604 CARB AIR TEMP GAGE GREEN BLACK RED 38 37 36 B341 OUTSIDE AIR TEMP GAGE O.A.T. SENDER TO PITOT SW (SEE D341) C2-15 C2-20 C2-2 C2-1 C2-36 C2-3 2038 STARTER LOCKOUT AVIONICS MASTER 2492 582 583 633 585 2233 2057 30 85 86 87 87A 30 85 86 87 87A 176 NAV LTS SWITCH STROBE LT SWITCH 2038 105 AVIONICS SWITCH 2234 2233 BATTERY SWITCH 30 65 121 104 121 104 2038 105 2233 2234 65 D049-6 HARNESS ASSY 2388 2388 OPT’L FWD STROBE 105 121 30 TO COM. X’CVR 201 COMPASS LIGHT 126 G196 LT ASSY 2289 125 (WHT) 126 (BLU) INST LIGHT 2290 RED BLK 3049 3049 OFF R L BOTH START A661 IGNITION SWITCH 54 BAT. S R BO LR L 3049 584 634 16 166 164 15 C1-14 3064 121 C1-19 107 ALTERNATOR SWITCH 19 18 18 19 2388 125 12 13 3052 THROTTLE LT C1-12 C2-38 3055 B304-15 HARNESS ASSY 3A 29 2492 2233 3052 3052 C ON OFF C ON OFF C ON OFF C ON OFF C ON OFF CONSOLE LIGHT DIMMER DIMMER CONTROL 934 933 932 931 750 2599 TO OPT'L AVIONICS AIR/GROUND SW 5A A072 STD CLK - LT 133 133 134 134 + 137 137 127 125 65 (-17 INST'L ONLY) 2289 2289 CIRCUIT BREAKER LT 127 2291 127 G196 LT ASSY CIRCUIT BREAKER LT 2291 127 G196 LT ASSY 2289 127 125 133 C1-36 204 122 C2-37 2180 2180 204 C1-27 204 TO AUTOPILOT LT 2180 2040 TO XPDR GPS KEEP ALIVE 2792 2180 A039 LH POS LIGHT R BLK WHT OFF ON GOVERNOR SWITCH 577 3034 576 2897 GOV GEAR- MOTOR RED BLK 16 1 4 5 578 W 578 B 33 35 36 34 29 2898 28 13 CONFIG 2890 (BLU) R44 I R44 II D270 GOV/EMU 66 A942 ALTERNATOR CONTROL UNIT WHT ORG 507 RED YLW 18 BLK 33 BLU 23 36 37 38 17 2926 19 C2-46 F793 ALERT BOX (SEE C060) C2-39 4 RED BLK WHT ORG BLK 1 5 2 3 4 1615 A039 RH POS LIGHT RED BLACK D606 MAP LT 1859 1858 1860 BLACK WHITE DOME LT 111 120 C039 MAP LIGHT ASSY 11 (WHT) 11 (BLU) 10 (WHT) 10 (BLU) 52 (BLU) 416 (BLU) 416 (WHT) 52 (WHT) 34 (BLU) 34 (WHT) 11 (WHT) 11 (BLU) 10 (WHT) 10 (BLU) 52 (BLU) 416 (BLU) 416 (WHT) 52 (WHT) 34 (BLU) 34 (WHT) 416 (BLU) 416 (WHT) 80 (ORG) 80 (WHT) 80 (BLU) 80 (ORG) 80 (WHT) 80 (BLU) 84 (ORG) 84 (WHT) 84 (BLU) 84 (ORG) 84 (WHT) 84 (BLU) 83 (WHT) 83 (BLU) 52 (WHT) 52 (BLU) 52 (WHT) 34 (WHT) 34 (BLU) 34 (WHT) 11 (WHT) 11 (WHT) 11 (BLU) 10 (WHT) C2-5 10 (WHT) 10 (BLU) 416 (BLU) 52 (BLU) 34 (BLU) 11 (BLU) 10 (BLU) C2-6 C2-7 C2-8 C2-9 C2-16 C2-12 C2-13 C2-14 C2-18 C2-19 C2-17 C2-33 C2-34 C2-32 23 36 (-17 ONLY) 1 7 2 20 8 16 3 15 9 21 13 19 6 18 5 17 4 12 13 416 (WHT) 416 (BLU) 52 (WHT) 52 (BLU) 34 (WHT) 34 (BLU) 11 (WHT) 11 (BLU) 10 (WHT) 10 (BLU) 22 129 10 68 GND +14/28V PWR AUX FUEL SENSOR AUX FUEL RETURN SHIELD MAIN FUEL SENSOR MAIN FUEL RETURN SHIELD CHT SENSOR CHT RETURN SHIELD OIL TEMP SENSOR OIL TEMP RETURN SHIELD OIL PRESS SENSOR OIL PRESS RETURN SHIELD AMMETER+ AMMETER- +14/28V PWR OUT 14 2213 CASE GND B144 INSTRUMENT CLUSTER TO OPT'L EQUIP 2886 (ORG) 2886 (WHT) 6 21 7 A760 O.A.T. SENDER ORG BLU WHT 2889 (ORG) 2889 (WHT) 2889 (BLU) 10 11 26 27 2891 (WHT) 38 23 2892 (WHT) 39 25 15 44 2891 (BLU) 22 2892 (BLU) 24 39 128 2028 2028 ENGINE OIL CARBON MONOXIDE ALT LOW FUEL SPARE LOW RPM A A A R A A G198 WRG LT PANEL MR CHIP MR TEMP TR CHIP STARTER ON ENGINE FIRE A A A A R SPARE A GOV OFF A E.M.U. A HYD SPARE (AMBER) / BATT HEATER (WHT) CLUTCH SPARE / BATT FAULT A A A A B556 LANDING LT INST'L (HID) 2 (BLK) GND 3 (WHT) PWR 3 2 (BLK) (WHT) BALLAST GND PWR 2042 BALLAST RH LANDING LIGHT LH LANDING LIGHT 2040 2912 2040 2323 (A780-66) 4 66 37 38 2539 AVIONICS GROUND 2539 AFT KEEL PANEL GROUND STUD 2561 2026 65 FWD SHUNT FWD JUNCTION BLOCK 2323 (A780-66) 2026 2026 12 13 507 22 (A780-68) 22 507 66 65 507 22 (A780-68) 507 2561 2561 2561 C2-10 C2-11 142 141 142 141 38 37 C2-40 C2-41 CONSOLE ELEC CONNECTOR 12 13 B304-18 FUSE ASSY HARNESS ASSY 3A 3A 12 13 13 12 43 2044 2044 3082 2062 3057 636 635 504 505 500 501 197 939 1358 2504 1519 1520 939 1358 2504 1 2 3 4 5 6 7 234 235 281 277 280 236 628 4 5 3 1 2 6 7 629 8 OFF ON HYD SW 685 284 239 603 604 605 628 629 284 239 603 283 SEE C060 TO CYCLIC (SEE C058) SEE C060 585 2047 6 8 709 2388 3055 2062 C2-50 PWR OUTLET (REAR) TO OPT'L AFT USB MODULE 29 3060 629 3052 2062 3057 196 503 XSSVS-0802 LOW VOLTAGE 2 5 OUT 4 SEN PWR 1 3 GND 3060 3057 3058 3059 2895 2895 3058 SW PWR 6 2059 1946 G BLK WHT 751 C2-45 2006 2006 2006 2006 1 7 3 34 32 31 29 30 14 15 4 5 9 38 13 37 F695-4 WRG LT TESTER 3058 2062 5 1 RED 8 7 6 ORG NC NO B280 LOW RPM RELAY BLK 3061 3062 3063 95 91 90 94 3063 667 666 TO OPT'L TURN COORDINATOR (SEE B191) 513 514 TO OPT'L ATTITUDE HORIZON & DIRECTIONAL GYRO (SEE B191) C1-34 C1-28 TO OPT'L AVIONICS CIRCUIT BREAKER 666 513 C2-48 C2-47 C2-51 2819 (BLU) 2819 (WHT) 2819 (BLU) 2819 (WHT) 2819 (BLU) 2819 (WHT) 3065 C2-49 3065 C2-35 C2-54 2058 3117 3117 2058 2058 3065 84 (ORG) 84 (WHT) 84 (BLU) GREEN YELLOW BLUE BLACK A569 LOW RPM W/STARTER LOCK OUT RED BLACK WHITE VIOLET ORANGE BROWN GRAY 70 87 3062 633 634 632 631 COLLECTIVE SWITCH (LOW RPM HORN) NCUP NO FULL DOWN 3064 2913 3063 10 22 23 2913 2912 2275 2058 ROTOR BRAKE LIGHT 1552 2819 (WHT) 2819 (BLU) 3117 3065 3064 577 93 92 3071 F695-5 WRG LT TESTER 3067 A 3071 3075 2040 142 141 2040 +28V +28V 23 24 2028 2005 PUSH-TO-TEST SWITCH 3066 2028 2006 G655 LOW FUEL QTY WRG TIME DELAY 58 2049 MR TEMP 3 ALT 6 LOW FUEL 19 TR CHIP LAMP TEST 10 16 ENGINE FIRE 17 MR CHIP 15 EMU 9 LAMP TEST 11 2 3058 2062 3 5 637 2049 2s CARBON MON 18 1555 3070 694 3066 2841 2840 3068 3072 (-17 ONLY) 3069 22 GND 2027 20 LOW RPM 3070 21 GOV OFF 694 STARTER ON 4 SPARE / B FAULT 2 ENG OIL 5 SPARE / B HEATR 1 2841 2840 3068 6 SPARE 8 CLUTCH 14 SPARE 7 3073 (-17 ONLY) 3069 3074 (-17 ONLY) 3077 2539 3075 3075 3075 TO OPT'L FWD TB17 BATTERY 2 3 1 3087 (BLU) 3087 (WHT) 3088 5A 2 3 1 4 5 6 3079 3080 3048 3081 (WHT) 3081 (ORG) 3081 (BLU) TO OPT'L CABIN CAMERA TO COPILOT H/S (SEE C060) 3048 90 94 121 121 3052 3003 3003 C1-37 3003 2323 3088 3088 STROBE LIGHT BLK WHT 5 58 3 2 637 80 (ORG) 80 (WHT) 80 (BLU) 84 (ORG) 84 (WHT) 84 (BLU) P-LD TACH CASE GND ENGINE RH MAGNETO (LH SIDE OF HELICOPTER) 3006 6 P 10 (B) ENG OIL PRESS. SENDER 3115 MOTOR CASE GND STARTER 582 2562 (A780-65) M.R.G.B. OVERTEMP SWITCH 2 504 505 69 FIRE DETECTION SWITCH 637 636 635 639 + F1 AUX 24 D748-1 ALTERNATOR F2 CASE GND 23 33 22 (A780-36) (AFT BAT) STA GND FLD BAT 22 23 33 A780-38 D729-2 ALTERNATOR 130 AMP (OPTIONAL) C021 TAIL ROTOR GEARBOX T.R.G.B. CHIP DETECTOR CASE GND 503 5 GEAR- MOTOR RED BLACK 97 96 TEST PLUG 1355 1354 NO NC C 99 98 NO NC C 99 91 SPRING SWITCHES NO NC C 139 97 EXTENSION LIMIT SWITCH NO NC C 90 139 RETRACTION LIMIT SWITCH 95 D602 ACTUATOR TIME DELAY ASSY 97 98 1.5A 90 91 95 94 TO HEATED PITOT (SEE D341) 2039 2038 118 109 TAIL LIGHT 1584 1585 1586 1587 D767 FUEL PUMP LOGIC MODULE 1543 FUEL PUMP RELAY 1588 1584 1585 1544 FUEL PUMP BLACK ORANGE P 1542 1530 BLOCKED FUEL FILTER SWITCH BLACK RED 1541 1532 1539 C2-43 C2-42 CONSOLE ELEC CONNECTOR P-LD TACH RH MAG 1526 LOW RPM WRG UNIT MOTOR CASE GND STARTER 582 581 (A780-24, TAILCONE BAT) 2562 (A780-65) C1-1 C1-26 C1-3 C1-2 1530 1950 1522 C1-4 1523 OFF R L BOTH PRIME A661 IGNITION SWITCH 54 BAT. S R L 1588 1524 1523 1589 GND -16 SCHEMATIC (28V IO-540) (SAME AS -17 EXCEPT AS SHOWN) ALSO SEE DETAIL -A- & -B- FOR TCM MAGNETO CYCLIC STICK 1586 138 COLLECTIVE PUSH-TO-START 1522 1521 577 576 GOV ON-OFF 2897 577 2061 3034 576 1519 1520 1522 CYCLIC PUSH-TO-START 1520 1519 1358 939 SEE C060 939 1519 1520 1358 SEE C060 ROTOR BRAKE SWITCH D880 TIME DELAY ASSY 2315 582 2314 2316 582 3115 TO STARTER LOCKOUT RELAY 2315 2314 2316 2317 C051 BELT TENSION ACTUATOR 2379 1545 BUS BAR 1587 1550 1586 64 3A 580 66 65 AFT BATTERY RELAY A780-46 2388 TO OPT’L FWD STROBE 12 13 AFT SHUNT/ JUNCTION BLOCK 85 86 87 87A 30 709 13 12 22 (A780-36) B304-18 FUSE ASSY 22 (A780-68) (UNDER SEAT BAT) 2561 2561 1543 G655 FUEL FILTER WRG TIME DELAY NO C NC FULL DOWN COLLECTIVE SWITCH (HOUR METER) 751 TO ENG OIL PRESS SW 1556 2599 HYD SOLENOID 629 630 3A 3A 2854 TO OPT'L FWD STROBE (G685) TO TAILCONE GND (C023) B F2 AUX 33 F1 CASE GND 33 23 22 (A780-36) 22 (A780-68) 23 CASE GND D748-6 ALTERNATOR 1 2 12 13 2889 (ORG) 2889 (WHT) 2889 (BLU) 34 (W) 2892 (W) 37 38 39 A058 CARB AIR TEMP SENDER (-17) 23 33 2891 (W) 10 (W) 416 (W) 416 (B) AUX FUEL QTY SENDER 52 (B) MAIN FUEL QTY SENDER 52 (W) 34 (B) 11 (W) 11 (B) 2892 (B) 2891 (B) 66 37 38 65 AFT SHUNT + – A780-22 A780-46 64 3A 580 (A780-67) 66 65 AFT JUNCTION BLOCK 22 (A780-36) 2562 (A780-65) 580 (A780-67) 2562 (A780-65) 2562 (A780-65) 580 (A780-67) 2561 2561 AFT BATTERY INST'L TO EXT PWR (SEE D033) A A AUX FUEL P 8 FUEL FILTER 7 2340 1530 G198 PANEL FUEL FILTER AUX FUEL PUMP 2340 C006 MAIN ROTOR GEARBOX M.R.G.B. CHIP DETECTOR 62 501 3 500 LOW FUEL QTY SWITCH 1946 A760-2 CYL HD TEMP SENDER RED RED BLK OR RED A760-3 OIL TEMP SENDER RED RED BLK OR RED 22 2561 NC NO ROTOR BRAKE SWITCH 2047 3049 2060 ENGAGED RELEASED BLK BLU RED 3050 JUMPER TO TB17 BATTERY (D036 REF) 3050 1964 2882 61 58 196 197 2038 109 503 5 3076 1539 1540 17 18 11 F695 WRG LT TESTER 0.3s 5 58 3 2 637 BLK BLU OR GRN RED 1 2 3 TACH SENDER BLK BLU OR GRN RED 1 2 3 EMU SENDER BLK BLU OR GRN RED 1 2 3 LOW RPM SENDER 13 3068 HYD 3076 1 2 83 (B) 83 (W) ENG OIL PRESS P 8 751 585 3065 2 1 3 2819 (BLU) 2819 (WHT) 2882 JUMPER TO WIRE 1964/65 BATTERY SW TO OPT'L AFT TB17 BATTERY B304-17 ASSY 3086 66 65 3075 3086 3048 750 16 3113 3112 44 16 2004 2004 2058 5 1 RED 8 7 6 ORG NC NO B280 STARTER RELAY BLK 3116 3115 3114 3114 3113 3113 3113 C2-53 3113 HYD 13 3113 3117 STARTER ON 4 3113 C2-53 3113 3A 10A 3086 3086 10A 3A CASE GND 3006 10A 3075 2040 87A 2380 P1 P2 A 1552 3055 2275 2275 2886 (BLU) 3 572 DETAIL -A- -16 WITH TCM MAGNETO ON ENGINE LH SIDE 2912 80 (ORG) 80 (WHT) 80 (BLU) 801 802 83 (WHT) 83 (BLU) 73 491 492 C792 DUAL TACH 2920 2919 HI RPM TEST D359 REGULATOR D359 REGULATOR 802 72 804 801 71 803 3077 128 128 128 128 2026 110 C NC NO 3053 FULL THROTTLE SW 3054 3051 86 85 87 87A 30 3056 1823 1822 3223 D260 A/C CUTOFF RELAY (SEE D776) 2895 FWD RH OUTLET FWD LH OUTLET 2693 2692 2691 3054 2367 GRN RED BLK C143-6 ENGINE RPM SENSOR 2886 (WHT) 2886 (ORG) 2886 (BLU) 3050 C2-27 83 (WHT) 83 (BLU) 83 (WHT) 83 (BLU) BLU YLW 12 2890 (WHT) 3002 3006 3005 3004 F695-9 RELAY ASSY (OVERSPEED) 8 7 1 5 NO2 NO1 3002 3 COIL– 3003 2 COIL+ C1 C2 3004 3004 204 DETAIL -B- CASE GND 15 164 RET P-LD 3005 ENGINE LH TCM MAGNETO (RH SIDE OF HELICOPTER) ENGINE LH EIS SEE DETAIL -B- FOR TCM MAGNETO (RH SIDE OF HELICOPTER) CASE GND 3086 PWR P-LD 3005 UNUSED RETARD WIRE 15 164 B049-14 TIMING B049-15 85 86 87 87A SEE DETAIL -A- FOR OPT'L TCM 1538 2316 1526 1524 3126 TO OPT'L SLICK STRT 1527 1523 1525 30 ENGINE LH EIS (RH SIDE OF HELICOPTER) TO RETARD ENG LH MAG 1527 166 584 TO OPT'L STARTING VIBRATOR SEE DETAIL -B- FOR TCM MAGNETO 3 1 2 VIN GND 1538 1524 1526 SLICK START 2316 3126 1523 1525 1527 CASE GND 3086 PWR P-LD 3005 1525 B049-14 TIMING B049-15 MAG RELAY 166 584 B0 IN STARTING VIBRATOR (GND) (SIG 2) (PWR) (PWR) (SIG 1/GOV) 20 3A C060-8 COM INST'L G198 LED B198 BULB 10A FUSE PRESENT W/EIS 10A FUSE PRESENT W/EIS TO MAG RLY (WHEN INSTALLED) NOTES: INDICATES CONNECTOR INDICATES SPLICE & SOLDER SPLICE ALTERNATOR LOAD LIMITS: 100 AMPS MAX FOR R44 II, 130-AMP MODEL 64 AMPS MAX FOR R44 II, 70-AMP MODEL 55 AMPS MAX FOR R44 I, 70-AMP MODEL 50 AMPS MAX FOR R44 CADET, 70-AMP MODEL INDICATES CONNECTOR WHICH MAY HAVE UNUSED CONDUCTORS C045-8 CIRCUIT BREAKER INST’L (-16) C045-9 CIRCUIT BREAKER INST’L (-17) C067-14 ELEC HARNESS INST’L (-16) C067-15 ELEC HARNESS INST’L (-17) ALL DASH NOS 5A C036-17 ELEC COMPONENTS INST’L (-16) C036-21 ELEC COMPONENTS INST’L (-17) -17 SCHEMATIC (28V O-540) Page 14.42 Chapter 14 Electrical and Avionics Systems FEB 2024 FIGURE 14-21A R44 ELECTRICAL SYSTEM INSTALLATION (C024 Revision AS shown) C024 REV AS G198 LED B198 BULB TO MAG RLY (WHEN INSTALLED) 10A FUSE PRESENT W/EIS 10A FUSE PRESENT W/EIS 2 3 129 111 4 102 7 2380 102 2 72 5 67 5 19 2 70 2 626 628 29 5 105 5 104 5 200 A045-2 2 28 71 2026 176 661 10 128 626 2627 2626 2690 2897 2047 2895 626 627 2743 2744 3079 626 3117 629 628 629 3 1 2 1 2 3 2 3 1 4 E C J M D K L B A 2 1 3 4 R S 2 1 3 8 1 5 3 4 1 2 3 24.92K .25W 2 1 3 24.92K .25W 6 2 7 2 1 1 2 6 7 2 3 4 5 1 3 2 1 1 3 4 6 5 2 2 1 2 3 1 1 2 3 4 2 1 2 2 1 1 2 3 2 1 1 2 1 4 5 6 9 1 3 2 11 10 7 8 20 21 4 19 23 26 5 8 18 6 10 25 12 3 2 9 24 11 1 22 1 2 4 3 2 1 3 1 2 4 1 3 5 2 6 5 1 2 4 3 1 2 4 1 3 2 2 1 2 1 NO C NC 1 2 3 10 2 1 2 3 4 1 2 6 7 2 2 1 3 5 1 2 3 4 3 1 2 2 1 3 2 1 3 2 1 1 2 2 1 3 4 1 2 1 2 1 2 3 1 2 3 3 1 2 2 1 1 2 3 NO C NC 2 1 1 2 3 3 2 13 11 10 1 6 3 15 8 7 14 5 9 1 2 3 1 2 3 B304-22 ASSY TERMINAL JUMPER TERMINAL JUMPER B304-5 B304-4 B304-20 B304-20 B304-21 B304-21 C2-21 C2-24 C2-22 C2-23 C1-10 C1-11 C2-25 C2-26 C2-27 80 (ORG) 80 (WHT) 80 (BLU) 71 72 83 (WHT) 83 (BLU) 84 (ORG) 84 (WHT) 84 (BLU) C2-30 C2-28 C2-29 C2-31 70 C1-9 C1-13 C1-14 C1-33 3063 3064 633 95 91 90 94 28 138 583 66 C1-18 C1-16 C1-15 C1-17 C1-5 C1-24 C1-30 C1-7 204 127 C1-21 C1-27 15 164 166 16 584 3049 C1-1 C1-3 C1-26 C1-2 C1-31 C1-6 C1-4 129 416 (WHT) 128 C1-22 125 C1-20 C1-23 577 C1-29 YELLOW RED BLACK 1555 1552 1554 C696 CARBON MONOXIDE DETECTOR + – A780-22 A780-79 BATTERY BATTERY UNDER SEAT INST'L 64 2323 (A780-66) 3A 141 142 C2-4 6 2323 (A780-66) 5 637 2 3 3058 58 5 637 2 3 58 + – ENGINE HOUR METER 42 OFF ON 112 138 355 112 138 LANDING LTS SWITCH OPTIONAL AVIONICS B304 CAP. ASSY 85 86 87 30 112 2380 119 LANDING LTS RELAY ENGAGE CLUTCH SWITCH DISENGAGE 138 28 88 137 92 93 113 631 632 583 66 91 95 67 67 C1-8 66 142 152 C1-25 UPPER CONSOLE GND 141 1A 42 166 584 NO C NC FULL DOWN 1556 COLLECTIVE SWITCH (HOUR METER) 751 TO XPDR (SEE C804) TO RADIO LTS 109 108 107 110 FIREWALL/CABIN BULKHEAD 6 2047 95 91 90 94 633 15 164 16 577 107 18 5 58 3 2 637 83 (WHT) 83 (BLU) 95 91 90 94 15 164 16 109 2038 8 ENGINE CASE A212-2 A212-2 C604 CARB AIR TEMP GAGE GREEN BLACK RED 38 37 36 B341 OUTSIDE AIR TEMP GAGE O.A.T. SENDER TO PITOT SW (SEE D341) C2-15 C2-20 C2-2 C2-1 C2-36 C2-3 2038 STARTER LOCKOUT AVIONICS MASTER 2492 582 583 633 585 2233 2057 30 85 86 87 87A 30 85 86 87 87A 176 NAV LTS SWITCH STROBE LT SWITCH 2038 105 AVIONICS SWITCH 2234 2233 BATTERY SWITCH 30 65 121 104 121 104 2038 105 2233 2234 65 D049-6 HARNESS ASSY 2388 2388 OPT'L FWD STROBE 105 121 30 TO COM X’CVR 201 COMPASS LIGHT 126 G196 LT ASSY 2289 125 (WHT) 126 (BLU) INST LIGHT 2290 RED BLK 3049 3049 OFF R L BOTH START A661 IGNITION SWITCH 54 BAT. S R BO LR L 3049 584 634 16 166 164 15 121 C1-19 107 ALTERNATOR SWITCH 19 18 18 19 2388 125 12 13 3052 THROTTLE LT C1-12 C2-38 3055 B304-15 HARNESS ASSY 3A 29 2492 2233 3052 C NC NO 3053 3052 FULL THROTTLE SW 3054 3052 C ON OFF C ON OFF C ON OFF C ON OFF C ON OFF CONSOLE LIGHT DIMMER DIMMER CONTROL 934 933 932 931 750 2599 TO OPT'L AVIONICS AIR/GROUND SW 5A A072 STD CLK - LT 133 133 134 134 + 137 137 127 125 2691 65 (-17 INST'L ONLY) 2289 2289 127 2291 127 CIRCUIT BREAKER LT 2291 127 G196 LT ASSY G196 LT ASSY 2289 127 125 133 C1-36 204 122 C2-37 2180 2180 204 TO AUTOPILOT LT 2180 2040 TO XPDR GPS KEEP ALIVE 2792 2180 A039 LH POS LIGHT R BLK WHT OFF ON GOVERNOR SWITCH 577 3034 576 2897 GOV GEAR- MOTOR RED BLK 16 1 4 5 578 W 578 B 3034 576 33 35 36 34 29 2898 28 13 CONFIG 2890 (BLU) 2890 (WHT) R22 R44 I R44 II D270 GOV/EMU 66 A942 ALTERNATOR CONTROL UNIT BLK WHT ORG 507 RED YLW 18 BLK 33 BLU 23 36 37 38 17 2926 19 C2-46 F793 ALERT BOX (SEE C060) C2-39 4 RED BLK WHT ORG BLK 1 5 2 3 4 1615 A039 RH POS LIGHT RED BLACK D606 MAP LT 1859 1858 1860 BLACK WHITE DOME LT 111 120 C039 MAP LIGHT ASSY 11 (WHT) 11 (BLU) 10 (WHT) 10 (BLU) 52 (BLU) 416 (BLU) 416 (WHT) 52 (WHT) 34 (BLU) 34 (WHT) 11 (WHT) 11 (BLU) 10 (WHT) 10 (BLU) 52 (BLU) 416 (BLU) 416 (WHT) 52 (WHT) 34 (BLU) 34 (WHT) 128 416 (BLU) 416 (WHT) 80 (ORG) 80 (WHT) 80 (BLU) 80 (ORG) 80 (WHT) 80 (BLU) 84 (ORG) 84 (WHT) 84 (BLU) 84 (ORG) 84 (WHT) 84 (BLU) 83 (WHT) 83 (BLU) 52 (WHT) 52 (BLU) 52 (WHT) 34 (WHT) 34 (BLU) 34 (WHT) 11 (WHT) 11 (WHT) 11 (BLU) 10 (WHT) C2-5 10 (WHT) 10 (BLU) 416 (BLU) 52 (BLU) 34 (BLU) 11 (BLU) 10 (BLU) C2-6 C2-7 C2-8 C2-9 C2-16 C2-12 C2-13 C2-14 C2-18 C2-19 C2-17 C2-33 C2-34 C2-32 23 36 (-17 ONLY) 1 7 2 20 8 16 3 15 9 21 13 19 6 18 5 17 4 12 13 416 (WHT) 416 (BLU) 52 (WHT) 52 (BLU) 34 (WHT) 34 (BLU) 11 (WHT) 11 (BLU) 10 (WHT) 10 (BLU) 22 129 10 68 GND +14/28V PWR AUX FUEL SENSOR AUX FUEL RETURN SHIELD MAIN FUEL SENSOR MAIN FUEL RETURN SHIELD CHT SENSOR CHT RETURN SHIELD OIL TEMP SENSOR OIL TEMP RETURN SHIELD OIL PRESS SENSOR OIL PRESS RETURN SHIELD AMMETER+ AMMETER- +14/28V PWR OUT 14 2213 CASE GND B144 INSTRUMENT CLUSTER TO OPT'L EQUIP 2886 (ORG) 2886 (WHT) 6 21 7 A760 O.A.T. SENDER ORG BLU WHT 2889 (ORG) 2889 (WHT) 2889 (BLU) 10 11 26 27 2891 (WHT) 38 23 2892 (WHT) 39 25 15 44 30 2891 (BLU) 22 2892 (BLU) 24 39 128 2028 2028 TO A/C RLY ENGINE OIL CARBON MONOXIDE ALT LOW FUEL SPARE LOW RPM A A A R A A G198 WRG LT PANEL MR CHIP MR TEMP TR CHIP STARTER ON ENGINE FIRE A A A A R SPARE A GOV OFF A E.M.U. A HYD SPARE (AMBER) / BATT HEATER (WHT) CLUTCH SPARE / BATT FAULT A A A A B556 LANDING LT INST'L (HID) 2 (BLK) GND 3 (WHT) PWR 3 2 (BLK) (WHT) BALLAST GND PWR 2042 BALLAST RH LANDING LIGHT LH LANDING LIGHT 2040 2912 2040 2323 (A780-66) 4 66 37 38 2539 AVIONICS GROUND 2539 AFT KEEL PANEL GROUND STUD 2561 2026 65 FWD SHUNT FWD JUNCTION BLOCK 2323 (A780-66) 2026 2026 12 13 507 22 (A780-68) 22 507 66 65 507 22 (A780-68) 507 2561 2561 2561 C2-10 C2-11 142 141 142 141 38 37 C2-40 C2-41 CONSOLE ELEC CONNECTOR 12 13 B304-18 FUSE ASSY HARNESS ASSY 3A 3A 12 13 13 12 141 43 2044 2044 3082 2062 3057 636 635 504 505 500 501 197 939 1358 2504 1519 1520 939 1358 2504 1 2 3 4 5 6 7 234 235 281 277 280 236 628 4 5 3 1 2 6 7 629 8 OFF ON HYD SW 685 284 239 603 604 605 628 629 284 239 603 283 SEE C060 TO CYCLIC (SEE C058) SEE C060 585 2047 6 8 709 2388 3055 2062 C2-50 FWD RH OUTLET FWD LH OUTLET 2693 2692 628 PWR OUTLET (REAR) TO OPT'L AFT USB MODULE 29 3060 629 629 626 2895 3052 2062 3057 196 503 XSSVS-0802 LOW VOLTAGE 2 5 OUT 4 SEN PWR 1 3 GND 3060 3057 3058 2895 3059 2895 2895 3058 SW PWR 6 3060 2059 3058 3057 1946 G BLK WHT 751 C2-45 2006 2006 2006 2006 1 7 3 34 32 31 29 30 14 15 4 5 9 38 13 37 F695-4 WRG LT TESTER 3058 2062 5 1 RED 8 7 6 ORG NC NO B280 LOW RPM RELAY BLK 3061 3062 3063 90 95 91 90 94 3063 667 666 TO OPT'L TURN COORDINATOR (SEE B191) 513 514 TO OPT'L ATTITUDE HORIZON & DIRECTIONAL GYRO (SEE B191) C1-34 C1-28 TO OPT'L AVIONICS CIRCUIT BREAKER 666 513 C2-48 C2-47 C2-51 2819 (BLU) 2819 (WHT) 2819 (BLU) 2819 (WHT) 2819 (BLU) 2819 (WHT) 3065 C2-49 3065 C2-35 C2-54 2058 3117 3117 2058 2058 3065 84 (ORG) 84 (WHT) 84 (BLU) GREEN YELLOW BLUE BLACK A569 LOW RPM W/STARTER LOCK OUT RED BLACK WHITE VIOLET ORANGE BROWN GRAY 70 87 3062 633 634 632 631 COLLECTIVE SWITCH (LOW RPM HORN) NC UP NO FULL DOWN 3064 2913 3063 10 22 23 2913 2912 2275 2058 ROTOR BRAKE LIGHT 1552 2819 (WHT) 2819 (BLU) 3117 3065 3064 577 93 92 3071 F695-5 WRG LT TESTER 3067 A 3071 3075 2040 142 141 2040 +28V +28V 23 24 2028 2005 PUSH-TO-TEST SWITCH 3066 2028 2006 G655 LOW FUEL QTY WRG TIME DELAY 58 2049 MR TEMP 3 ALT 6 LOW FUEL 19 TR CHIP LAMP TEST 10 16 ENGINE FIRE 17 MR CHIP 15 EMU 9 LAMP TEST 11 2 3058 2062 3 5 637 2049 2s CARBON MON 18 1555 3070 694 3066 2841 2840 3068 3072 (-17 ONLY) 3069 22 GND 2027 20 LOW RPM 3070 21 GOV OFF 694 STARTER ON 4 SPARE / B FAULT 2 ENG OIL 5 SPARE / B HEATR 1 2841 2840 3068 6 SPARE 8 CLUTCH 14 SPARE 7 3073 (-17 ONLY) 3069 3074 (-17 ONLY) 3077 3051 2539 3075 3075 3075 TO OPT'L FWD TB17 BATTERY 2 3 1 3087 (BLU) 3087 (WHT) 3088 5A 2 3 1 4 5 6 3079 3080 3048 3081 (WHT) 3081 (ORG) 3081 (BLU) TO OPT'L CABIN CAMERA TO COPILOT H/S (SEE C060) 3048 90 94 121 204 121 TO F695-4 3051 TO FULL THROTTLE SW 3052 C2-44 3002 3003 3002 3003 3005 3006 3006 3005 3002 3003 3004 F695-9 RELAY ASSY (OVERSPEED) 8 3 2 7 1 5 NO2 NO1 COIL– COIL+ C1 C2 3004 3004 3003 C1-37 3003 2323 3088 3088 HYD SOLENOID 629 630 416 (W) 416 (B) AUX FUEL QTY SENDER 52 (B) MAIN FUEL QTY SENDER STROBE LIGHT BLK WHT ENGINE LH MAGNETO SEE DETAIL -B- FOR EIS (RH SIDE OF HELICOPTER) 5 58 3 2 637 80 (ORG) 80 (WHT) 80 (BLU) 84 (ORG) 84 (WHT) 84 (BLU) P-LD TACH CASE GND ENGINE RH MAGNETO (LH SIDE OF HELICOPTER) 16 6 P 10 (B) ENG OIL PRESS. SENDER 3115 MOTOR CASE GND STARTER 582 2562 (A780-65) M.R.G.B. OVERTEMP SWITCH 2 504 505 69 FIRE DETECTION SWITCH 637 636 635 639 + F1 AUX 24 D748-1 ALTERNATOR F2 CASE GND 23 33 22 (A780-36) (AFT BAT) STA GND FLD BAT 22 23 33 A780-38 D729-2 ALTERNATOR 130 AMP (OPTIONAL) C021 TAIL ROTOR GEARBOX T.R.G.B. CHIP DETECTOR CASE GND 503 5 GEAR- MOTOR RED BLACK 97 96 TEST PLUG 1355 1354 NO NC C 99 98 NO NC C 99 91 SPRING SWITCHES NO NC C 139 97 EXTENSION LIMIT SWITCH NO NC C 90 139 RETRACTION LIMIT SWITCH 95 D602 ACTUATOR TIME DELAY ASSY 97 98 1.5A 90 91 95 94 TO HEATED PITOT (SEE D341) 2039 2038 118 109 TAIL LIGHT 1584 1585 1586 1587 D767 FUEL PUMP LOGIC MODULE 1543 FUEL PUMP RELAY 1588 1584 1585 1544 FUEL PUMP BLACK ORANGE P 1542 1530 BLOCKED FUEL FILTER SWITCH BLACK RED 1541 1532 1539 C2-43 C2-42 CONSOLE ELEC CONNECTOR P-LD TACH RH MAG 1526 LOW RPM WRG UNIT MOTOR CASE GND STARTER 582 581 (A780-24, TAILCONE BAT) 2562 (A780-65) C1-1 C1-26 C1-3 C1-2 1530 1950 1522 C1-4 OFF R L BOTH PRIME A661 IGNITION SWITCH 54 BAT. S R L 1588 1524 1523 1589 GND CYCLIC STICK 1586 138 COLLECTIVE PUSH-TO-START 1522 1521 577 576 GOV ON-OFF 2897 577 2061 3034 576 1519 1520 1522 CYCLIC PUSH-TO-START 1520 1519 1358 939 SEE C060 939 1519 1520 1358 SEE C060 ROTOR BRAKE SWITCH D880 TIME DELAY ASSY 2315 582 2314 2316 582 3115 TO STARTER LOCKOUT RELAY 2315 2314 2316 2317 C051 BELT TENSION ACTUATOR 2379 1545 BUS BAR 1587 1550 1586 64 3A 580 66 65 AFT BATTERY RELAY A780-46 2388 TO OPT'L FWD STROBE 12 13 AFT SHUNT/ JUNCTION BLOCK 85 86 87 87A 30 709 13 12 22 (A780-36) B304-18 FUSE ASSY 22 (A780-68) (UNDER SEAT BAT) 2561 2561 1543 G655 FUEL FILTER WRG TIME DELAY NO C NC FULL DOWN COLLECTIVE SWITCH (HOUR METER) 751 TO ENG OIL PRESS SW 1556 2599 3A 3A 2854 TO OPT'L FWD STROBE (G685) TO TAILCONE GND (C023) B F2 AUX 33 F1 CASE GND 23 33 22 (A780-36) 22 (A780-68) 23 CASE GND D748-6 ALTERNATOR 1 2 CASE GND 12 13 2889 (ORG) 2889 (WHT) 2889 (BLU) GRN RED BLK YLW BLU C143 ENGINE RPM SENDER 2886 (WHT) 2886 (ORG) 2886 (BLU) 34 (W) 2892 (W) 37 38 39 A058 CARB AIR TEMP SENDER (-17) 23 33 2891 (W) 83 (BLU) 83 (WHT) 10 (W) 52 (W) 34 (B) 11 (W) 11 (B) 2892 (B) 2891 (B) 66 37 38 65 AFT SHUNT + – A780-22 A780-46 64 3A 580 (A780-67) 66 65 AFT JUNCTION BLOCK 22 (A780-36) 2562 (A780-65) 580 (A780-67) 2562 (A780-65) 2562 (A780-65) 580 (A780-67) 2561 2561 AFT BATTERY INST'L TO EXT PWR (SEE D033) A A AUX FUEL P 8 FUEL FILTER 7 2340 1530 G198 PANEL FUEL FILTER AUX FUEL PUMP 2340 C006 MAIN ROTOR GEARBOX M.R.G.B. CHIP DETECTOR 62 501 3 500 LOW FUEL QTY SWITCH 1946 A760-2 CYL HD TEMP SENDER RED RED BLK OR RED A760-3 OIL TEMP SENDER RED RED BLK OR RED 22 2561 NC NO ROTOR BRAKE SWITCH 2047 3049 2060 ENGAGED RELEASED BLK BLU RED 3050 JUMPER TO TB17 BATTERY 3050 1964 2882 61 58 196 197 2038 109 503 5 3076 1539 1540 17 18 11 F695 WRG LT TESTER 0.3s 5 58 3 2 637 BLK BLU OR GRN RED 1 2 3 TACH SENDER BLK BLU OR GRN RED 1 2 3 EMU SENDER BLK BLU OR GRN RED 1 2 3 LOW RPM SENDER TO OPT'L EIS (SEE DETAIL -B-) 13 3068 HYD 3076 1 2 83 (B) 83 (W) ENG OIL PRESS P 8 751 585 3065 2 1 3 2819 (BLU) 2819 (WHT) 2882 JUMPER TO WIRE 1964/65 BATTERY SW TO OPT'L AFT TB17 BATTERY B304-17 ASSY 3086 3086 66 65 3075 3075 3086 3048 750 3006 3113 3112 44 16 2004 2004 2058 5 1 RED 8 7 6 ORG NC NO B280 STARTER RELAY BLK 3116 3115 3114 3114 3113 3113 3113 C2-53 3113 3113 HYD 13 3113 3117 176 STARTER ON 4 3113 C2-53 3113 3A 10A 3086 3086 10A 15 164 RET P-LD 3005 ENGINE LH MAGNETO SEE DETAIL -B- FOR EIS (RH SIDE OF HELICOPTER) CASE GND 1527 RET P-LD 3005 TO OPT'L EIS (SEE DETAIL -B-) 1525 3A 3086 CASE GND 3006 10A 3075 2040 87A 2380 112 P1 P2 A 1552 3055 2275 2275 2886 (BLU) 3 572 572 B0 IN STARTING VIBRATOR OMIT W/EIS (STOW WIRES) 85 86 87 87A MAG RELAY 1538 2316 1526 1524 3126 STOW WIRES THIS CONFIG 1525 1527 30 3 1 2 VIN GND 1538 1524 1526 SLICK START SEE DETAIL -A- FOR OPT'L EIS 2316 3126 1523 1525 1527 1523 DETAIL -A- -16 WITH EIS ON ENGINE LH SIDE 2912 80 (ORG) 80 (WHT) 80 (BLU) 801 802 83 (WHT) 83 (BLU) 73 491 492 C792 DUAL TACH 2920 2919 HI RPM TEST 3002 D359 REGULATOR D359 REGULATOR 802 72 804 801 71 803 3077 128 128 128 128 ENGINE LH EIS (RH SIDE OF HELICOPTER) CASE GND 3086 PWR P-LD 3005 UNUSED RETARD WIRE 15 (-17) 1525 (-16) 164 (-17), 1527 (-16) DETAIL -B- NOTES: INDICATES CONNECTOR INDICATES SPLICE & SOLDER SPLICE ALTERNATOR LOAD LIMITS: 100 AMPS MAX FOR R44 II, 130-AMP MODEL 64 AMPS MAX FOR R44 II, 70-AMP MODEL 55 AMPS MAX FOR R44 I, 70-AMP MODEL 50 AMPS MAX FOR R44 CADET, 70-AMP MODEL INDICATES CONNECTOR WHICH MAY HAVE UNUSED CONDUCTORS C060-6 COM INST’L C036-19 ELEC COMPONENTS INST’L (-16) C036-23 ELEC COMPONENTS INST’L (-17) C067-14 ELEC HARNESS INST’L (-16) C067-15 ELEC HARNESS INST’L (-17) C045-8 CIRCUIT BREAKER INST’L (-16) C045-9 CIRCUIT BREAKER INST’L (-17) C036-18 ELEC COMPONENTS INST'L (-16) C036-22 ELEC COMPONENTS INST'L (-17) ALL DASH NOS 5A CIRCUIT BREAKER LT -16 SCHEMATIC -17 SCHEMATIC