Description
Complete Official U.S. Army Maintenance Manual for the UH-1H/V/EH-1H/X Helicopter Series
This is the complete, official TM 55-1520-210-23-1 manual, superseding all previous editions and changes. It is the definitive document for Aviation Unit and Intermediate Maintenance of the Army Model UH-1H, UH-1V, EH-1H, and EH-1X helicopters. This 1,300+ page technical manual provides all essential information for personnel to accomplish maintenance on the complete airframe, its components, and systems.
The TM 55-1520-210-23-1 is the manual you need for in-depth maintenance, repair, and troubleshooting. It covers the airframe, power plant, rotors, drive train, hydraulic systems, fuel systems, flight controls, and more. This is not a simplified owner’s manual; it’s the detailed guide used by military maintenance personnel, packed with specifications, diagrams, and step-by-step procedures.
File Details
- Manual Type: Official U.S. Army Technical Manual (TM) for Aviation Unit and Intermediate Maintenance
- Document Number: TM 55-1520-210-23-1
- Date: 30 September 1987 (with numerous changes integrated up to 2004)
- Model Coverage: UH-1H, UH-1V, EH-1H, EH-1X Helicopters
- Language: English
- Page Count: Over 1,300 pages
- Format: PDF
Complete PDF Bookmark Tree
Complete Bookmarks
The complete bookmarks in the “TM 55-1520-210-23-1 UH-1H/V/EH-1H/X Helicopter Maintenance Manual PDF” are as follows:
TABLE OF CONTENTSp. 123
LAST CHANGEp. 7
WARNINGp. 3
+CHAPTERS
+CHAPTER 1p. 129
PARA 1-1p. 129
PARA 1-5p. 132
PARA 1-6p. 136
PARA 1-7p. 137
PARA 1-8p. 137
PARA 1-11p. 138
PARA 1-29p. 184
PARA 1-36p. 193
PARA 1-37p. 193
PARA 1-38p. 193
PARA 1-41p. 197
PARA 1-44p. 200
PARA 1-54p. 204
PARA 1-60p. 206
+CHAPTER 2p. 273
PARA 2-5p. 273
PARA 2-14p. 283
PARA 2-18p. 299
PARA 2-27.1p. 335
PARA 2-30p. 343
PARA 2-33p. 345
PARA 2-65.1p. 371
PARA 2-68p. 371
PARA 2-87p. 385
PARA 2-90p. 389
PARA 2-91p. 389
PARA 2-98p. 394
PARA 2-106p. 395
PARA 2-113p. 398
PARA 2-116p. 398
PARA 2-121p. 402
PARA 2-122p. 404
PARA 2-126p. 405
PARA 2-136p. 413
PARA 2-139p. 417
PARA 2-146p. 422
PARA 2-177p. 429
PARA 2-178p. 429
PARA 2-199p. 433
PARA 2-216p. 436
PARA 2-218p. 436
PARA 2-219p. 436
PARA 2-220p. 436
PARA 2-221p. 436
PARA 2-222p. 436
PARA 2-223p. 437
PARA 2-229p. 437
PARA 2-227p. 437
PARA 2-233p. 438
PARA 2-234p. 438
PARA 2-236p. 439
PARA 2-237p. 441
PARA 2-252.3p. 449
PARA 2-252.6p. 455
PARA 2-252.8p. 456
PARA 2-252.10p. 456
PARA 2-269p. 475
PARA 2-272p. 481
PARA 2-282p. 489
PARA 2-289p. 494
PARA 2-290p. 503
PARA 2-292p. 505
PARA 2-293p. 510
PARA 2-293.1p. 510
PARA 2-295p. 511
PARA 2-296p. 525
PARA 2-296.1p. 555
PARA 2-309p. 562
PARA 2-310p. 562
PARA 2-311p. 562
PARA 2-312p. 562
PARA 2-313p. 562
PARA 2-314p. 562
PARA 2-315p. 563
PARA 2-316p. 563
PARA 2-323p. 572
+CHAPTER 3p. 575
PARA 3-4p. 575
PARA 3-7p. 578
PARA 3-10p. 582
PARA 3-11p. 582
PARA 3-13p. 584
PARA 3-16p. 584
PARA 3-17p. 584
PARA 3-18p. 584
PARA 3-22p. 590
PARA 3-23p. 590
PARA 3-24p. 590
PARA 3-38.1p. 601
PARA 3-38.6p. 602
PARA 3-39p. 602
PARA 3-43p. 608
PARA 3-47p. 608
+CHAPTER 4p. 610
PARA 4-1p. 610
PARA 4-4p. 613
PARA 4-9p. 614
PARA 4-11p. 619
PARA 4-15p. 624
PARA 4-18p. 624
PARA 4-19p. 624
PARA 4-20p. 624
PARA 4-22p. 624
PARA 4-24p. 626
PARA 4-27p. 626
PARA 4-33p. 627
PARA 4-38p. 632
PARA 4-42p. 635
PARA 4-51p. 639
PARA 4-53p. 643
PARA 4-56p. 645
PARA 4-69p. 662
PARA 4-73p. 664
PARA 4-79p. 669
PARA 4-81p. 669
PARA 4-91p. 674
PARA 4-93p. 674
PARA 4-95p. 675
PARA 4-100p. 681
PARA 4-106.9p. 694
PARA 4-106.10p. 694
PARA 4-106.10.1p. 695
PARA 4-106.10.2p. 695
PARA 4-106.10.4p. 697
PARA 4-106.10.5p. 697
PARA 4-106.11p. 699
PARA 4-106.19p. 700
PARA 4-112p. 702
PARA 4-113p. 702
PARA 4-121p. 714
PARA 4-122p. 715
PARA 4-128p. 716
PARA 4-131p. 723
PARA 4-133p. 727
PARA 4-142p. 730
PARA 4-151p. 748
+CHAPTER 5p. 756
PARA 5-1p. 756
PARA 5-3p. 756
PARA 5-7p. 757
PARA 5-8p. 762
PARA 5-8.1p. 765
PARA 5-9p. 765
PARA 5-10p. 766
PARA 5-12p. 771
PARA 5-13p. 774
PARA 5-14p. 777
PARA 5-18p. 777
PARA 5-20p. 785
PARA 5-21p. 799
PARA 5-23
PARA 5-24p. 813
PARA 5-30p. 818
PARA 5-31p. 821
PARA 5-32p. 828
PARA 5-33p. 832
PARA 5-34p. 833
PARA 5-34.6p. 836
PARA 5-34.5p. 836
PARA 5-35p. 880
PARA 5-39p. 880
PARA 5-40p. 881
PARA 5-43p. 884
PARA 5-46p. 901
PARA 5-47p. 902
PARA 5-53p. 905
PARA 5-54p. 905
PARA 5-56p. 906
PARA 5-56.3p. 910
PARA 5-56.6p. 910
PARA 5-56.5p. 910
PARA 5-57p. 915
PARA 5-60p. 915
PARA 5-61p. 918
PARA 5-64p. 923
PARA 5-68p. 927
PARA 5-70p. 927
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PARA 5-71p. 928
PARA 5-73p. 929
PARA 5-78p. 934
PARA 5-74p. 934
PARA 5-77p. 934
PARA 5-78p. 934
PARA 5-84p. 950
PARA 5-87p. 951
PARA 5-92p. 955
PARA 5-96p. 956
PARA 5-97p. 959
PARA 5-98p. 965
PARA 5-101p. 965
PARA 5-103p. 967
PARA 5-104p. 974
PARA 5-111p. 982
PARA 5-117p. 982
PARA 5-118p. 985
PARA 5-119p. 990
PARA 5-121p. 990
PARA 5-124p. 999
PARA 5-129p. 1003
PARA 5-130p. 1005
PARA 5-130.1p. 1006
PARA 5-131p. 1008
PARA 5-132p. 1008
PARA 5-133p. 1011
PARA 5-133.1p. 1011
PARA 5-134p. 1012
PARA 5-134.1p. 1013
PARA 5-138p. 1017
PARA 5-139p. 1018
+CHAPTER 6p. 1055
PARA 6-13p. 1056
PARA 6-17p. 1062
PARA 6-19p. 1064
PARA 6-20p. 1064
PARA 6-23p. 1074
PARA 6-24p. 1075
PARA 6-30p. 1097
PARA 6-30.1p. 1102
PARA 6-30.2p. 1102
PARA 6-31p. 1104
PARA 6-32p. 1105
PARA 6-35p. 1111
PARA 6-36p. 1112
PARA 6-37p. 1113
PARA 6-38p. 1114
PARA 6-39p. 1115
PARA 6-40p. 1118
PARA 6-41p. 1119
PARA 6-43p. 1119
PARA 6-45p. 1119
PARA 6-49.3p. 1124
PARA 6-49.4p. 1124
PARA 6-49.5p. 1125
PARA 6-49.6p. 1125
PARA 6-50p. 1125
PARA 6-53p. 1128
PARA 6-60p. 1129
PARA 6-62p. 1131
PARA 6-66p. 1132
PARA 6-67p. 1132
PARA 6-81p. 1133
PARA 6-83p. 1137
PARA 6-85p. 1138
PARA 6-91p. 1140
PARA 6-94p. 1141
PARA 6-95p. 1143
PARA 6-98p. 1143
PARA 6-100p. 1146
PARA 6-106p. 1150
PARA 6-107p. 1151
PARA 6-109p. 1154
PARA 6-111p. 1154
PARA 6-112p. 1155
PARA 6-113p. 1155
PARA 6-115p. 1155
PARA 6-116p. 1157
PARA 6-117p. 1158
PARA 6-120p. 1161
PARA 6-121p. 1161
PARA 6-122p. 1162
PARA 6-123p. 1163
PARA 6-124p. 1163
PARA 6-125p. 1163
PARA 6-129p. 1164
PARA 6-136p. 1168
PARA 6-137p. 1169
PARA 6-139p. 1172
PARA 6-140p. 1173
PARA 6-141p. 1177
PARA 6-142p. 1181
PARA 6-144p. 1183
PARA 6-145p. 1183
PARA 6-148p. 1185
PARA 6-149p. 1186
PARA 6-151p. 1186
PARA 6-153p. 1186
PARA 6-159p. 1188
PARA 6-161p. 1188
PARA 6-162p. 1189
PARA 6-163p. 1189
PARA 6-164p. 1191
PARA 6-165p. 1191
PARA 6-166p. 1192
PARA 6-167p. 1204
PARA 6-171p. 1208
PARA 6-173p. 1213
PARA 6-179p. 1216
PARA 6-182.1p. 1217
PARA 6-183
PARA 6-184p. 1222
PARA 6-189p. 1231
PARA 6-194p. 1237
PARA 6-195p. 1239
PARA 6-200.1p. 1254
PARA 6-200.2p. 1257
PARA 6-200.3p. 1258
PARA 6-203p. 1263
PARA 6-204p. 1264
PARA 6-206p. 1264
PARA 6-208p. 1264
PARA 6-210p. 1265
PARA 6-210.7p. 1267
PARA 6-210.9p. 1267
PARA 6-211p. 1271
PARA 6-214p. 1271
PARA 6-217p. 1271
PARA 6-220p. 1271
+FIGURES
FIGURE 1-1p. 133
FIGURE 1-2p. 184
FIGURE 1-4p. 185
FIGURE 1-5p. 186
FIGURE 1-6p. 188
FIGURE 1-7p. 194
FIGURE 1-8p. 195
FIGURE 1-9p. 196
FIGURE 1-10p. 198
FIGURE 1-11p. 202
FIGURE 1-12p. 203
FIGURE 1-13p. 205
FIGURE 1-14p. 207
FIGURE 1-15p. 260
FIGURE 2-1p. 274
FIGURE 2-2p. 276
FIGURE 2-3p. 282
FIGURE 2-4p. 284
FIGURE 2-5p. 289
FIGURE 2-6p. 300
FIGURE 2-7p. 301
FIGURE 2-8p. 302
FIGURE 2-8.1p. 310
FIGURE 2-8.2p. 314
FIGURE 2-8.3p. 316
FIGURE 2-9p. 317
FIGURE 2-10p. 320
FIGURE 2-11p. 322
FIGURE 2-12p. 324
FIGURE 2-13p. 325
FIGURE 2-13.1p. 329
FIGURE 2-14p. 335
FIGURE 2-14.2p. 336
FIGURE 2-16p. 344
FIGURE 2-17p. 345
FIGURE 2-18p. 351
FIGURE 2-19p. 354
FIGURE 2-20p. 355
FIGURE 2-21p. 361
FIGURE 2-22p. 364
FIGURE 2-23.1p. 367
FIGURE 2-23.2p. 368
FIGURE 2-23.3p. 369
FIGURE 2-24p. 372
FIGURE 2-24.2p. 375
FIGURE 2-24.3p. 377
FIGURE 2-24.4p. 378
FIGURE 2-25p. 379
FIGURE 2-26p. 381
FIGURE 2-27p. 383
FIGURE 2-28p. 386
FIGURE 2-28.1p. 387
FIGURE 2-29p. 390
FIGURE 2-30p. 391
FIGURE 2-31p. 393
FIGURE 2-32p. 396
FIGURE 2-33p. 400
FIGURE 2-33.1p. 401
FIGURE 2-34p. 402
FIGURE 2-35p. 404
FIGURE 2-36p. 406
FIGURE 2-37p. 409
FIGURE 2-38p. 413
FIGURE 2-39p. 414
FIGURE 2-40p. 415
FIGURE 2-41p. 418
FIGURE 2-41.1p. 419
FIGURE 2-42p. 423
FIGURE 2-43p. 434
FIGURE 2-44p. 435
FIGURE 2-45p. 438
FIGURE 2-46p. 439
FIGURE 2-46.1Ap. 440
FIGURE 2-46.1Bp. 440
FIGURE 2-46.2p. 440
FIGURE 2-46.3p. 441
FIGURE 2-46.4p. 441
FIGURE 2-46.5Ap. 443
FIGURE 2-46.5Bp. 443
FIGURE 2-46.5Cp. 443
FIGURE 2-46.6p. 444
FIGURE 2-46.7p. 446
FIGURE 2-47p. 447
FIGURE 2-48p. 448
FIGURE 2-48.1p. 450
FIGURE 2-48.2p. 451
FIGURE 2-48.3p. 453
FIGURE 2-48.4p. 454
FIGURE 2-48.7p. 463
FIGURE 2-48.10p. 467
FIGURE 2-48.11p. 468
FIGURE 2-49p. 469
FIGURE 2-50.1p. 477
FIGURE 2-50p. 479
FIGURE 2-51p. 482
FIGURE 2-52p. 486
FIGURE 2-52.1p. 494
FIGURE 2-53p. 495
FIGURE 2-53.1p. 496
FIGURE 2-53.1.1p. 497
FIGURE 2-53.2p. 498
FIGURE 2-53.3p. 500
FIGURE 2-54p. 502
FIGURE 2-56p. 506
FIGURE 2-57p. 508
FIGURE 2-58p. 509
FIGURE 2-59p. 521
FIGURE 2-61p. 526
FIGURE 2-62p. 527
FIGURE 2-62.1p. 528
FIGURE 2-63p. 529
FIGURE 2-63.1p. 530
FIGURE 2-65p. 533
FIGURE 2-66p. 536
FIGURE 2-67p. 538
FIGURE 2-68p. 539
FIGURE 2-69p. 541
FIGURE 2-70p. 546
FIGURE 2-71p. 547
FIGURE 2-72p. 550
FIGURE 2-73p. 551
FIGURE 2-73.1p. 557
FIGURE 2-74p. 559
FIGURE 2-75p. 560
FIGURE 2-76p. 561
FIGURE 2-77p. 564
FIGURE 2-78p. 567
FIGURE 3-1p. 576
FIGURE 3-1.1p. 577
FIGURE 3-2p. 578
FIGURE 3-3p. 582
FIGURE 3-4p. 584
FIGURE 3-5p. 585
FIGURE 3-6p. 586
FIGURE 3-7p. 588
FIGURE 3-7.1p. 592
FIGURE 3-8p. 596
FIGURE 3-9p. 598
FIGURE 3-9.1p. 605
FIGURE 3-9.2p. 605
FIGURE 3-9.3p. 606
FIGURE 3-10p. 607
FIGURE 3-11p. 609
FIGURE 4-1p. 611
FIGURE 4-2p. 612
FIGURE 4-3p. 613
FIGURE 4-4p. 616
FIGURE 4-5p. 617
FIGURE 4-6p. 620
FIGURE 4-7p. 621
FIGURE 4-8p. 623
FIGURE 4-9p. 625
FIGURE 4-10p. 629
FIGURE 4-11p. 630
FIGURE 4-13p. 638
FIGURE 4-14p. 640
FIGURE 4-15p. 641
FIGURE 4-16p. 642
FIGURE 4-17p. 647
FIGURE 4-17.1p. 652
FIGURE 4-17.3p. 658
FIGURE 4-17.2p. 660
FIGURE 4-17.3p. 658
FIGURE 4-18p. 668
FIGURE 4-20p. 676
FIGURE 4-21p. 677
FIGURE 4-21.1p. 685
FIGURE 4-21.1.1p. 690
FIGURE 4-21.2p. 691
FIGURE 4-21.3p. 699
FIGURE 4-22p. 687
FIGURE 4-23p. 703
FIGURE 4-24p. 708
FIGURE 4-25p. 709
FIGURE 4-28p. 711
FIGURE 4-29p. 712
FIGURE 4-30p. 721
FIGURE 4-37p. 725
FIGURE 4-38p. 726
FIGURE 4-39p. 729
FIGURE 4-40p. 730
FIGURE 4-41p. 731
FIGURE 4-42p. 732
FIGURE 4-43p. 733
FIGURE 4-44p. 735
FIGURE 4-45p. 738
FIGURE 4-46p. 741
FIGURE 4-47p. 742
FIGURE 4-48p. 745
FIGURE 4-49p. 747
FIGURE 4-50p. 750
FIGURE 4-51p. 753
FIGURE 5-1p. 758
FIGURE 5-1.1p. 759
FIGURE 5-2p. 760
FIGURE 5-3p. 761
FIGURE 5-4p. 763
FIGURE 5-4.1p. 763
FIGURE 5-4.2p. 763
FIGURE 5-5p. 770
FIGURE 5-6p. 772
FIGURE 5-7p. 773
FIGURE 5-8p. 775
FIGURE 5-9p. 776
FIGURE 5-10p. 779
FIGURE 5-11p. 782
FIGURE 5-12p. 783
FIGURE 5-13p. 786
FIGURE 5-14p. 788
FIGURE 5-15p. 789
FIGURE 5-18p. 792
FIGURE 5-19p. 793
FIGURE 5-19.1p. 794
FIGURE 5-19.3p. 796
FIGURE 5-20p. 798
FIGURE 5-21.1p. 800
FIGURE 5-21p. 802
FIGURE 5-21.2p. 806
FIGURE 5-22p. 812
FIGURE 5-23p. 813
FIGURE 5-24p. 817
FIGURE 5-24.1p. 820
FIGURE 5-25p. 829
FIGURE 5-26p. 830
FIGURE 5-26.1p. 835
FIGURE 5-26.2p. 837
FIGURE 5-26.3p. 838
FIGURE 5-26.6p. 841
FIGURE 5-26.9p. 846
FIGURE 5-26.10p. 849
FIGURE 5-26.11p. 851
FIGURE 5-26.12p. 852
FIGURE 5-26.13p. 859
FIGURE 5-26.14p. 862
FIGURE 5-26.15p. 864
FIGURE 5-26.16p. 866
FIGURE 5-26.17p. 873
FIGURE 5-27p. 882
FIGURE 5-28p. 887
FIGURE 5-29p. 888
FIGURE 5-30.1p. 896
FIGURE 5-31p. 899
FIGURE 5-31.1p. 901
FIGURE 5-32p. 904
FIGURE 5-33p. 907
FIGURE 5-33.1p. 908
FIGURE 5-33.2p. 912
FIGURE 5-33.3p. 913
FIGURE 5-34p. 916
FIGURE 5-35p. 917
FIGURE 5-36p. 919
FIGURE 5-37p. 922
FIGURE 5-38p. 924
FIGURE 5-39p. 925
FIGURE 5-40p. 932
FIGURE 5-41p. 933
FIGURE 5-42p. 934
FIGURE 5-43p. 935
FIGURE 5-44p. 936
FIGURE 5-45p. 940
FIGURE 5-46p. 945
FIGURE 5-47p. 947
FIGURE 5-48p. 954
FIGURE 5-50p. 958
FIGURE 5-50Ap. 960
FIGURE 5-51p. 960
FIGURE 5-52p. 961
FIGURE 5-55p. 966
FIGURE 5-56p. 968
FIGURE 5-57p. 969
FIGURE 5-58p. 970
FIGURE 5-59p. 973
FIGURE 5-60p. 974
FIGURE 5-61p. 977
FIGURE 5-62p. 978
FIGURE 5-63p. 981
FIGURE 5-64p. 983
FIGURE 5-65p. 984
FIGURE 5-66p. 987
FIGURE 5-69p. 997
FIGURE 5-70p. 998
FIGURE 5-71p. 999
FIGURE 5-72.1p. 1016
FIGURE 5-73p. 1021
FIGURE 5-74p. 1022
FIGURE 5-75p. 1025
FIGURE 5-76p. 1026
FIGURE 5-77p. 1027
FIGURE 5-78p. 1028
FIGURE 5-79p. 1029
FIGURE 5-80p. 1030
FIGURE 5-81p. 1031
FIGURE 5-82p. 1032
FIGURE 5-83p. 1033
FIGURE 5-84p. 1034
FIGURE 5-85p. 1037
FIGURE 5-86p. 1038
FIGURE 5-87p. 1041
FIGURE 5-87.1p. 1044
FIGURE 5-87.2p. 1045
FIGURE 5-87.3p. 1046
FIGURE 5-88p. 1047
FIGURE 5-89p. 1049
FIGURE 5-90p. 1050
FIGURE 5-91p. 1051
FIGURE 5-92p. 1052
FIGURE 5-93p. 1053
FIGURE 6-7p. 1056
FIGURE 6-8p. 1057
FIGURE 6-9p. 1058
FIGURE 6-10p. 1065
FIGURE 6-11p. 1066
FIGURE 6-12p. 1069
FIGURE 6-12.1p. 1080
FIGURE 6-13p. 1083
FIGURE 6-13.2p. 1093
FIGURE 6-14p. 1098
FIGURE 6-14.1p. 1101
FIGURE 6-15p. 1107
FIGURE 6-16p. 1110
FIGURE 6-17p. 1113
FIGURE 6-18p. 1116
FIGURE 6-18.1p. 1121
FIGURE 6-19p. 1123
FIGURE 6-20p. 1127
FIGURE 6-21p. 1128
FIGURE 6-22p. 1130
FIGURE 6-22.3p. 1136
FIGURE 6-23p. 1139
FIGURE 6-24p. 1142
FIGURE 6-24.1p. 1144
FIGURE 6-25p. 1145
FIGURE 6-26p. 1149
FIGURE 6-26.1p. 1152
FIGURE 6-27p. 1156
FIGURE 6-28p. 1157
FIGURE 6-29p. 1160
FIGURE 6-30p. 1162
FIGURE 6-31p. 1165
FIGURE 6-32p. 1166
FIGURE 6-33p. 1169
FIGURE 6-33.1p. 1170
FIGURE 6-34p. 1171
FIGURE 6-35p. 1172
FIGURE 6-37p. 1178
FIGURE 6-37.1p. 1180
FIGURE 6-38p. 1181
FIGURE 6-38.1p. 1184
FIGURE 6-40p. 1189
FIGURE 6-41p. 1190
FIGURE 6-42p. 1193
FIGURE 6-42.1p. 1194
FIGURE 6-43p. 1195
FIGURE 6-44p. 1203
FIGURE 6-45p. 1209
FIGURE 6-46p. 1210
FIGURE 6-47p. 1211
FIGURE 6-47.1p. 1212
FIGURE 6-50.1p. 1219
FIGURE 6-51p. 1221
FIGURE 6-51.1p. 1227
FIGURE 6-52p. 1238
FIGURE 6-52.1p. 1241
FIGURE 6-53p. 1248
FIGURE 6-54p. 1250
FIGURE 6-54.1p. 1256
FIGURE 6-54.2p. 1256
FIGURE 6-54.3p. 1259
FIGURE 6-55p. 1262
FIGURE 6-56p. 1263
FIGURE 6-57p. 1265
FIGURE 6-57.1p. 1268
FIGURE 6-57.2p. 1269
+TABLES
TABLE 1-1p. 142
TABLE 1-2p. 165
TABLE 1-3p. 172
TABLE 1-4p. 174
TABLE 1-5p. 181
TABLE 1-7p. 187
TABLE 1-8p. 256
TABLE 1-9p. 261
TABLE 2-1p. 278
TABLE 2-2p. 290
TABLE 2-3p. 291
TABLE 2-4p. 291
TABLE 2-4.1p. 292
TABLE 2-6p. 295
TABLE 2-5p. 296
TABLE 2-7p. 512
TABLE 4-1p. 679
TABLE 4-1.1p. 692
TABLE 4-2p. 710
TABLE 5-1p. 767
TABLE 5-3p. 816
TABLE 5-4p. 822
TABLE 5-5p. 824
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TABLE 5-7p. 1019
TABLE 5-8p. 1020
TABLE 6-2p. 1061
TABLE 6-4p. 1094
TABLE 6-5p. 1100
TABLE 6-6p. 1131
INDEXp. 1273
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Chapters Covered
This manual is a comprehensive reference, with chapters covering every major aspect of the helicopter. The table of contents includes:
- Chapter 1: Introduction – Servicing, lubrication, handling, jacking, mooring, hoisting, inspection requirements, and flight safety critical parts.
- Chapter 2: Airframe – Fuselage structure, repairs (including honeycomb panels, sheetmetal, and lift beams), tailboom, access covers, doors, and windows.
- Chapter 3: Alighting Gear – Landing gear assembly, skid tubes, skid shoes, and ground handling gear.
- Chapter 4: Power Plant – Complete information on the engine assembly, air induction systems (including particle separators), exhaust system, oil system, ignition, and power controls (power lever, linear actuator, droop compensator).
- Chapter 5: Rotors – Main rotor system (hub, blades, swashplate), stabilizer bar, tail rotor system, and tracking procedures.
- Chapter 6: Drive Train System – Main driveshaft, clutch, transmission assembly, tail rotor driveshaft, intermediate and tail rotor gearboxes, and oil systems.
- Chapters 7-17: Hydraulic and pneumatic systems, instrument systems, electrical systems, fuel system, flight controls, utility systems, environmental control, hoists and winches, mission equipment, and emergency equipment.
- Appendices: References, Maintenance Allocation Chart (MAC), Aircraft Inventory Master Guide, Illustrated Field Manufacture Items, Storage of Aircraft, and Wiring Diagrams.
This manual provides the technician with precise torque values, standard maintenance procedures, detailed inspection criteria, and comprehensive troubleshooting guides for all systems. It is the same manual used by Army Aviation Unit and Intermediate Maintenance personnel, ensuring that every job is performed to the highest standard. Whether you are restoring a UH-1, performing routine maintenance, or diagnosing a complex system fault, this manual is your indispensable guide.
Why You Need This Manual
This PDF service manual enables you to perform a full range of maintenance and repairs on your UH-1H/V/EH-1H/X helicopter. From simple servicing and lubrication to complex engine and transmission overhauls, this manual covers it all. It provides the critical specifications, diagrams, and step-by-step instructions needed to keep your aircraft safe and airworthy. With this manual, you can work confidently, knowing you have the official Army-approved procedures at your fingertips.
TM 55-1520-210-23-1 is an essential resource for any owner, operator, or maintenance facility working on the UH-1 series. The detailed specifications for systems such as the engine, transmission, and rotors ensure that maintenance is performed correctly and to the required standard, helping to prevent costly mistakes and safety issues.
Instant PDF Delivery: This is a digital product. After your payment is confirmed, you will receive immediate access to download the PDF file. There are no shipping costs or delays. You can view it on any device—computer, tablet, or phone—and print specific sections as needed.
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