Table 1-1. Hydraulic Components cont'd

TM 10-5410-228-24

1.16 HYDRAULIC SYSTEM Continued.

Continued

Table 1-1. Hydraulic Components

Reference

Designator

Function

SV5

This solenoid is used to control operation of condenser fan circuit.

SV6

This solenoid controls speed of vent (NBC) fan. In normal vent (NBC) mode, SV6 remains

unenergized or closed. SV6 becomes energized only during non-NBC mode.

SV7

Flow to heating circuit controlled by this solenoid. Under normal operation of system, this

solenoid is unenergized or open which allows fluid to return to reservoir and filter. When

heat is requested, SV7 is closed forcing fluid over heating relief valve, RD2.

SV8

The rib inflation fan is operated by this solenoid. It is normally closed and is energized or

opened only when rib fan is needed.

SV9

Under normal operational modes this solenoid remains energized or closed to allow normal

flow through the recirculation fan motor. During NBC operation using external power, this

solenoid is opened to isolate recirculation fan motor which reduces the total system load or

hp demand.

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