SAE ARP 551A-1958 ACCESSORY ENVELOPE FOR 8 NOMINAL DIAMETER GENERATORS.pdf

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1、 I - - - -I i i _ ALTERNATE INLETJ I I AIR SPOUT LOCATIO . 25 f- - 3. 7 5i -5 7S ENGINE - , FOR EXHAUST SHROUD (SEE NOTE C) GASKET REFERENCE AN 4047-1 PLANE OF FLANGE MOUNTING FACE PLANE OF ENGINE DRIVE N N +i 9 u-, 1 r J M 8.75 DIA. / ,.P O 5.75 rna,x . SEE NOTE C SOCIETV OF AUTOMOTIVE ENGINEERS. ,

2、. AERONAUTICAL 485 LEXINGTON AVENUE RECOMMENDED PRACTICE ARP 55A NEW YORK 17. N.Y. I ACCESSORY ENVELOPE FOR 8“ NOMINAL DIAMETER GENERATORS Is$“ 7-1-55 I Revised 7-15-58 o-. imva H,E, o iEoa ooo o c m9m c oWme omcw L VC W Y Y C w 9a-T 3_ 0 E a Ema c E Y oc mmam YU1 omm maw nW9 aE m m Y m W 0 m oym n

3、T m V a=m m+. Yy n nw tm ma-a er, W m er co + L 1 cum v. eE . nW omo aoo, Wm m umem mr c r i w mFc + m - i m a10 a _m ayim oo oema am : N y C W WrE 9 O T m CN 7 awa.“ am Lev mo m cv+. Wma yma 00 T m C i wmOE o c r Ua.Er rWO; aoc om, m+oW mn r SEE ARP 554 OR 555 1 FOR EXHAUST SHROUD P,1UNTING i 1 , !

4、 - - 18.87 WITH AXIAL AIR SPOUT - - ! - 17.00 WITH RADIAL AIR SPOUT- - -i 1 - 15.25 - - - 3.44-i It.62R Q.9.D, i IENGINE CI,P1NG BOLT 3 , APPLIES FOR 60, 1 X. P0.SITION ROT9TABLE 360 r . .75 3,75 / Y SEE NOTE A FOR POWER TAKE-OFF PROVIDE CLEARANCE OF 4.000 DIA. TO CLEAR ENGINE ENVELOPE FOR . ALL DRI

5、VES EXCEPT XII A,B,D,E EXTERNAL AIR COOLING HOSE CONNECTI(1 GENERATOR ht4Y BE MDUNTED IXJ FNGINE PAD IN ANY ONE OF SIX POSITIONS AS CONTROLLED BY FLANGE P:10UNTING HCLES. AIR SPOUT .1AY E ADJUSTED AT INSTALLATICN TO . ANY ONE CF 4 POSITIONS RADIALLY AROUND GENERATCR AXIS IN 90. INCREMENTS BEGINNING

6、45 FROM AXIS OF ELECTRICAL CONNECTOR. NOTE A: GENERATOR fJST BE ROTATABLE 30 (DIRECTION OF R(7iATI0N OPTIONAL) IN ORDER TO DISENGAGE FROM Q.A.D. NOTE D: 4.75 R. MAY BE REDUCED TO 4.38 R. MIfV. FOR 90 MAX. IN CASE OF INTERFERENCE. NOTE C: EXHAUST SHROUD CONNECTING SPOUT A9AY BE MDIFIED OR OPAITTED TO

7、 SUIT C(XJDITICNS. P.MX. RQ:pVAL LEN6TH 175 FOR NCNJ Q,A,D, UNITS, FOR Q.0. D. UNITS DETAILED 57UDY OF THE DESIGN IS REQUIRED. (CLEARANCE FOR IN. STALIATION AND REMCNAL TO EE INCLUDED ON AMOCK UP MODELS). FiOVIDE ACCESSORY CLEARANCE FOR M(7UNTING PLANGE AND10262. CLEARANCE SHALL BE PROVIDED TO PEFd.

8、11T INSTALLATION OF GENERAT Q2 IN AT LEAST ONE OF SIX POSSIBLE PCbITIONS. CLEARANCE SHALL BE PRCNIDED FOR ELECTRICAL CONNECTIONS TO TEf2MINAL BOX AND FCR 3.00 I.D.HOSE AND CLAP TO AIFt SPOUT. TERM I NAL BOX AND/OR A I R SPOUT MAY E3E REL I EVED FOR t7CK UP PUR FOSES ONLY TO ACCOA?ViCOATE A I R SP(XJ

9、T WHEN LOCATED 45 FR(X1 TERPA I NA DOX, OF TEF211NAL GOX TO BE LOCATED 90 FROM OF A h10UNTING FLANGE HOLE. DIAIENSIONS ARE IN INCHES UNLESS OTHERWISE SPECIFIED. DIPtENSI0N5 ARE MAX. GENERATOR, 3.75 4.75 R. . (SEE NOTE B) / 1 1 I - INLET AIR - SPOUT - - / i / 30 TEf3AINAL EOX SEE NOTE - 3.50 - 3.50 I n i _-F-_ : 6.31 i i - - -_ -. I - , , 7.5 . . Prepared by Subcommittee A-2G Generators and Voltage Regulators of Cormnittee A-2 Aircraft and h4issile Electrical Equipir,ent Copyrlght 1958 by Socfety of Automotive Engineera, Inc. Printed in U. S. A.