TM 55-1520-240-23-9
11-279
BENCH TEST AFCS COCKPIT CONTROL DRIVE ACTUATOR (CCDA) (AVIM)
(Continued)
11-279
TEST 4
CIRCUIT RESISTANCE TEST (PITCH)
NOTE
Perform preliminary procedure before
test. (Refer to TM 55-4920-430-13.)
37.
Disconnect plug (1) from receptacle (2).
38.
Read resistance across receptacle (2) from pin H
to pin C. Meter shall indicate open.
39.
Reverse meter leads. Read resistance across
receptacle (2) from pin H to pin C. Meter shall
indicate open.
40.
Read resistance across receptacle (2) from pin
G to pin C. Reading shall be 85 to 120 ohms.
41.
Reverse meter leads. Read resistance across
receptacle (2) from pin C to pin G. Reading shall
be less than one half of reading of step 40.
42.
Read resistance across receptacle (2) pins.
Readings shall be as follows:
PIN
to
PIN
READING
F
to
C
0.5 to 5.0 ohms
F
to
B
60 to 100 ohms
J
to
E
Open
J
to
K
Open
J
to
L
Open
K
to
L
Open
B
to
C
60 to 100 ohms
P
to
E
Open
M
to
N
40 to 90 ohms
M
to
C
20 to 50 ohms
N
to
C
20 to 50 ohms
43.
Connect plug (1) to receptacle (2).
END CIRCUIT RESISTANCE TEST (PITCH)
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