TM 55-4920-428-13
CONTROL OR INDICATOR
DESCRIPTION
(Fig. 2-3)
LOW PRESS gage (G2)
0 to 600 psi panel indicator. Indicates pressure downstream of
the LOW PRESS REGULATOR (VR7).
CASE VENT LINE PRESS
Needle type valve with visual indicating scales. Controls flow to
valve (VR5)
CASE VENT LINE hose.
OPEN - Opens valve passage.
CLOSED - Closes valve passage.
NOTE
The panel of the hydraulic unit includes two sets of identical selector
valves, marked SYS 1 and SYS 2. Only SYS 2 set of the valves is described.
SYS 1 reference designations are given in parentheses.
ILCA PRESS SYS 2 (1)
3-position manual selector. Directs fluid flow to selected
control valve VP2 (VP 1 )
positions.
OFF - Blocks flow from all ports.
PRESS - Connects pressure to SYS 2 (1) ILCA stick boost
manifold port P2 (P1).
VENT - Connects SYS 2 (1) ILCA stick boost manifold port
P2 (P1) to return.
SAS PRESS SYS 2 (1)
control valve VS2 (VS1)
RETURN SYS 2 (1)
control valve VR2 (VR1)
3-position manual selector. Directs fluid flow to selected
positions.
OFF - Blocks flow from all ports.
PRESS - Connects pressure to SYS 2 (1) extensible link
manifold port S2 (S1).
VENT - Connects SYS 2 (1) extensible link manifold port
S2 (S1 ) to return.
3-position manual selector. Directs fluid flow to selected
positions.
OFF - Blocks flow from all ports.
PRESS — Connects pressure to the SYS 2 (1) ILCA manifold
return port R2 (R1 ).
R E T U R N
-
Connects ILCA manifold return port R2 (R1 )
to return.
2-6. Preparation for Use.
Prepare the units for operation as follows:
NOTE
This test set is designed for use with the AVIM hydraulic shop set.
a. Position the electrical and hydraulic units on a work table. Press the air relief valves to equalize
air pressure.
2 -
8
