TM 55-1520-240-23-6
7-1
FLIGHT CONTROL HYDRAULIC SYSTEM
(Continued)
7-1
Reservoir Cooler
Fluid storage and cooling for each system is provided by
an integrated reservoir cooler module with a separate
fan. The reservoir section of the module stores fluid
for system operation. The cooler is mounted on top of
the reservoir. It is connected by flexible ducting to a
fan that is activated by a thermal switch in the cooler.
Sensors in the unit send information on fluid level and
temperature to the maintenance panel in the ramp area.
An indicating rod on the reservoir provides another
indication of system fluid level.
NO BREAK - WORK HARDER
The reservoir cooler and fan for the No. 1 system are in
the forward fairing, aft of the forward transmission. The
No. 2 system module is in the aft pylon on the left side.
Lower Controls Modules
A lower controls module in each system reduces
hydraulic pressure to the integrated lower controls
actuators (ILCA) from 3,000 to 1,500 psi.
NO BREAK - WORK HARDER
A solenoid valve in each module shuts off hydraulic
pressure to the AFCS extensible links in each ILCA. It
is actuated by either manual or automatic shutdown of
the AFCS.
NO BREAK - WORK HARDER
The modules for both systems are located in the upper
part of the flight controls closet. The No. 1 system
module is at sta. 100. The No. 2 module is at sta. 95.
7-6
