TM 55-2840-254-23
B. Gearshaft assembly (1) and gearshaft (2) are located in the starter drive assembly. Bevel gearshafts
(18 and 20) and bevel gear (19) are located in the accessory gear assembly. The fuel boost pump drive
gear (6), main oil pump drive spur gear (7), fuel control drive spur gear (8), N1 driven bevel gear (9),
overspeed governor control drive bevel spur gearshaft (10), spur gear cluster (11), spur gear (12), and
N2 driven bevel gear (13) are located in the accessory gearbox assembly. The N2 driven bevel gearshaft
(14) is part of the overspeed drive and tank outlet cover assembly. Overspeed drive bevel gear (15) and
spur gear (16) are part of the output shaft support housing (not shown). The output shaft (17) is
mounted and rotates through the output shaft support housing. Bevel gear (3) is part of the compressor
rotor assembly (4).
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