TM 55-1520-240-23-9
11-280
AFCS INTERFACE TEST
(Continued)
11-280
TEST 24
HYDRAULIC PRESSURE SWITCH TEST (BOTH)
154.
Set AFCS SYSTEM SEL switch (1) to 1 or 2.
(System under test.)
155.
Set METER SOURCE switch (3) to DISCRETE
MON.
156.
Set DISCRETE SIGNAL MONITOR switch (34)
to SEL 2.
157.
Set SIGNAL SEL 2 switch (35) to HYD
PRESSURE FULL STATUS A, light (37) shall
come on. Read digital display (6). Reading shall
be -0.5 to +0.5 VDC. NO. 1 HYD FLT CONTR
caution light (57) shall be out.
NOTE
For No. 2 system test, NO. 2 HYD FLT
CONTA caution light (58) shall be out.
158.
Set HYDRAULIC FLT CONTR switch (59) to (59)
to NO.2 ON. STATUS B, light (39) and NO. 1
HYD FLT CONTR (without 74 ) or HYD 1 (with
74 ) caution light (57) shall be on. Read digital
display (6). Reading shall be +4.1 to +5.1 VDC.
NOTE
For No. 2 system test NO. 2 HYD FLT
CONTR (without 74 ) or HYD 2 (with
74 ) caution light (58) shall be on.
END HYDRAULLIC PRESSURE
SWITCH TEST (BOTH)
11-1197
