Section II ROTOR GROUP

Table 1-8. Materials Used for NDI - Continued

Figure 2-1. Rotor Group

TM-1-1520-253-23 CH/MH-47 Helicopters Series Manual
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TM 1-1520-253-23

SECTION II

ROTOR GROUP

2. GENERAL.

2.1 CONTENTS. The rotor group inspection items covered in this section are those critical items of the CH/MH-47

helicopter rotor blades, rotor head, and components listed in the Rotor Group Inspection Index (Table 2-1).

Corresponding inspection figures and applicable text paragraphs are listed opposite each inspection item. The index

number for each item may be used to locate it in Figure 2-1.

Table 2-1. Rotor Group Inspection Items

Index:

Inspection

Paragraph

Figure

Number

Nomenclature

Method

Number

Rotary-Wing Head:

MT:

2.2

2-2

Hub Oil Tank:

ET:

2.3

2-3

Pitch Varying Shaft:

MT:

2.4

2-4

Rotor Hub:

MT:

2.5

2-5

Vertical Hinge Pin Flanges:

MT:

2.6

2-6

Pitch Varying Shaft Bore Liner:

MT:

2.7

2-7

Horizontal Hinge Pin:

MT:

2.8

2-8

Centrifugal Droop Stop Lugs:

ET:

2.9

2-9

*10

Centrifugal Droop Stop Bolts:

MT:

2.10

2-10

*11

Rotary-Wing Blade:

BT:

2.11

2-11

*12

Pitch Link:

MT:

2.12

2-12

*13

Ball Spherical Bearing:

ET:

2.13

2-13

Weather Protective Cover:

BT:

2.14

2-14

NOTE: *Indicates Flight Safety Part.

2-1

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