TM 1-1520-253-23
TRANSMISSION/DRIVETRAIN GROUP
3. GENERAL.
3.1 CONTENTS. The transmission/drivetrain group inspection items covered in this section are those items of the
CH/MH-47 helicopter transmission, gear boxes, driveshafts, and components listed in the Transmission/Drivetrain Group
Inspection Index (Table 3-1). Corresponding inspection figures and applicable text paragraphs are listed opposite each
inspection item. The item number for each item may be used to locate it in Figure 3-1.
Index
Inspection
Paragraph
Figure
Number
Nomenclature
Method
Number
Number
*2
Driveshaft Adapters (Aluminum)
ET
*3
Driveshaft Adapters (Steel)
MT
*4
Forward Driveshafting Tubes
ET
*5
Aft Driveshafting Tubes
ET
*6
Engine Driveshaft (Two Piece)
ET
*7
Engine Driveshaft (One Piece)
ET
8
Driveshaft Adapter Plate
PT
*9
Engine Transmission Adapter
MT
*10
Combining Transmission Adapter
MT
*11
Forward Transmission Slider Shaft
MT
*12
Forward Transmission Outside Surface
ET
13
Aft Slider Shaft
MT
*14
Aft Rotor Shaft
MT
*15
Aft Rotor Shaft Support
ET
*16
Combining Transmission Outside Surface
ET
*17
Aft Transmission Outside Surface
ET
*18
Engine Transmission Quill Shaft
MT
*19
Engine Transmission Outside Surface
ET
20
Transmission Oil Cooler Assemblies
PT
NOTE: *Indicates Flight Safety Part.
