Tail Rotor Driveshaft Hanger

More documents

Recommendations

Info

BHT-212-CR&065-17. Repaircoo...La=`goo'-o3EECADE-0MATERIALS REQUIREDRefer to BHT-ALL-SPM for specification andsource.NUMBERC-100C-105C-108C-112C-116C-204C-308C-423C-432C-494CJ)cc-0U)ENOMENCLATUREChemical Film MaterialCorrosion PreventiveBrush CadmiumPlating SolutionCadmium ChromateConversion Coating00Chromic AcidPrimerAdhesiveAbrasive cloth orPaperNitric AcidInkNOTEReplace case if structural damage tostud threads or mounting bolt holesare elongated so repair limits areexceeded.1. Replace parts which exceed allowablewear limits.2. Repair corrosion damage on the case asfollows (figure 65-7):a. Flange repair: Machine off upper faceto a minimum flange thickness of 0.40 inch(10.16 mm) (dimension B, figure 65-7)provided this leaves no pits in excess of0.010 inch (0.254 mm) deep and affectedarea does not exceed inspection limits.Rework case using a 0.875 inch (22.225 mm)...momfro3.213.00diameter spotface with 0.062 inch (1.5748mm) corner radius. Machined surface finishshall be 63 RMS or better.65-00-00Page 20Rev.4b. Stud hole damage: Remove damagedor loose studs. Use suitable tool to grip studand turn out slowly and evenly to avoidseizure and breakage. If stud hole threads aredamaged, repair or replace case as required.a0-5 -"`con'-"cc.,-«4+,aS11C70If corrosion or other damage has notpenetrated past first thread,follows (BHT-ALL-SPM):D.c((DD33.rework case as(1) Machine or drill out damagedthread. Do not exceed depth of one thread.2.3Clean out diameter shall equal major threaddiameter.(2) Break all sharp edges, except inarea of threads. Clean out small vent hole inbottom of threaded hole. Treat bare surfaceswith chemical film material (C-100).(3) Replace stud (BHT-ALL-SPM).(4). Fill all counterdrilled holes withadhesive (C-308) flush with top of case.c. Repair minor scratches, nicks, and pitson noncritical surfaces with abrasive cloth orpaper (C-423).d. Cases with corrosion damage withinacceptable limits must be treated byimmersion in a hot chromic acid bathconsisting of 20 to 24 ounces (591.4 to709.68 ml) of chromic acid (C-116) per gallon(/j3-t3-firc>,=r,
BHT-212-CR&0Required dimensions shall be met afterplating (BHT-ALL-SPM).b. If original shim plate is missing ormixed with other shim plates, determinerequired dimensions of replacement shimplate as follows:(1) Examine case for referencedimension which is metal stamped or vibro-,-.etched on part adjacent to applicablemounting surface.(2) Subtract dimension etched orstamped on case from 3.4670 to 3.4675inches (88.0618 to 88.0745 mm) to giveTWOc°E`(flrequired shim thickness, after plating.Rev.465-00-00Page 20A/20B
Page 1 and 2: BHT-212-CR&0CHAPTER 65 - TAIL ROTOR
Page 3 and 4: BHT-212-CR&0CONSUMABLE MATERIAL LIS
Page 5 and 6: BHT-212-CR&OTAIL ROTOR DRIVE SYSTEM
Page 7 and 8: BHT-212-CR&OTAIL ROTOR DRIVESHAFT H
Page 9: BHT-212-CR&O,..:+3NOTEIf TEMP-PLATE
Page 12 and 13: BHT-212-CR&0(b-n--1 0-ca0)0ohm^mNOT
Page 14 and 15: BHT-212-CR&O--{-gym2 CAUTIONIN ORDE
Page 16 and 17: mI-:BHT-212-CR&O15INTERNAL SPLINESI
Page 18 and 19: BHT-212-CR&OA Acceptable pattern ty
Page 20 and 21: BHT-212-CR&ON7 U----HANGER-204-040-
Page 22 and 23: BHT-212-CR&0I65-14. Cleaningmm300MA
Page 25: BHT-212-CR&O1. Output quill2. Nut3.
Page 30 and 31: BHT-212-CR&O.w.212-040-506-1 CASE A
Page 33 and 34: BHT-212-CR&0(3) Grind new blank shi
Page 35 and 36: BHT-212-CR&010. Prepare data plate
Page 37 and 38: cBHT-212-CR&02. Hold outer coupling
Page 39 and 40: BHT-212-CR&0SEAL (13) PARTIALLY SEA
Page 41: BHT-212-CR&0000000)0)0)1a. Inspect
Page 44 and 45: BHT-212-CR&O711140,a11 1e9ITEM NOME
Page 46 and 47: BHT-212-CR&OTOPHEEL TOPHEEL i \ TOE
Page 48 and 49: .-.BHT-212-CR&ONOTES7. Unacceptable
Page 50 and 51: BHT-212-CR&OACCEPTABLE212-R-65-14UN
Page 52 and 53: BHT-212-CR&ONUMBERT101307T101333T10
Page 55 and 56: BHT-212-CR&065-29. OUTPUT QUILL.65-
Page 57: 0BHT-212-CR&O5. Perform magnetic pa
Page 60 and 61: BHT-212-CR&0SEAL (13) PARTIALLY SEA
Page 62 and 63: 0BHT-212-CR&010. Inspect sleeves (2
Page 64 and 65: B HT-212-C R &06. Repair inner coup
Page 66 and 67: BHT-212-CR&O-4CAUTIONto 203.37 Nm)
Page 69 and 70: BHT-212-CR&OTAIL ROTOR(90°) GEARBO
Page 71: BHT-212-CR&O4. Remove sealant from
Page 74 and 75: 0BHT-212-CR&O1. Shaft 13. Stud 25.
Page 77 and 78:
BHT-212-CR&07. Inspect following pa
Page 79 and 80:
*l.l-.BHT-212-CR&011 13MIN.MAXITEM
Page 81 and 82:
B HT-212-CR&0ACCEPTABLE WEAR PATTER
Page 83 and 84:
BHT-212-CR&015. Repair or replace s
Page 85 and 86:
BHT-212-CR&ODIAMETER A(SEAL CONTACT
Page 87 and 88:
BHT-212-CR&OSPECIAL TOOLS REQUIRED
Page 89 and 90:
BHT-212-CR&Oa. Cap adapter (10, fig
Page 91 and 92:
BHT-212-CR&OSEE DETAIL B16INSTALL W
Page 93:
BHT-212-CR&O-48. Inspect outer coup
Page 96 and 97:
BHT-212-CR&OA Acceptable pattern ty
Page 98 and 99:
BHT-212-CR&ON^D--I--DOff'0(DD)j"'ZZ
Page 100 and 101:
BHT-212-CR&0Table 65-1. Magnetic Pa
Page 102 and 103:
BHT-212-CR&0Table 65-1.Magnetic Par
show all

Tail Rotor Driveshaft Hanger

Create successful ePaper yourself

Delete template?

Save as template?