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SECTION II. THEORY OF OPERATION | Up
TM-1-1520-238-T-5 Army Model AH-64 Helicopter (NSN
1520-01-106-9519) (EIC: RHA) Manual | Next
Figure 7–7. Primary Hydraulic System Functional Diagram |
TM 1-1520-238-T-5
Change 6
7–21
7–7.
SYSTEM DESCRIPTION (cont)
7–7
PRIMARY
MANIFOLD
PRIMARY
HYDRAULIC
PUMP
HAND
PUMP
UTILITY
MANIFOLD
UTILITY
GSE
PANEL
GAS
RESERVOIR
UTILITY
ACCUMULATOR
APU
START
MOTOR
UTILITY
HYDRAULIC
PUMP
PRESSURE
RETURN
ROTOR
BRAKE
COLLECTIVE
SERVOCYLINDER
DIRECTIONAL
SERVOCYLINDER
LONGITUDINAL
SERVOCYLINDER
LATERAL
SERVOCYLINDER
PRESSURE
RETURN
PRIMARY
GSE
PANEL
CONTROL
VALVE
TAIL WHEEL
LOCK
M68-191A
RETURN
SHUTOFF
VALVE
PRESSURE
LEGEND
NITROGEN
ADF
PRIMARY
ADG
FILTER
Figure 7–6.
Primary and Utility Hydraulic System Block Diagram
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