ARMY TM 9-6115-671-14
AIR FORCE TO 35C2-3-446-32
MARINE CORPS TM 09249A/09246A-14
4-45
TABLE 4-4. UNIT TROUBLESHOOTING (CONTINUED)
Not OK
Not OK
OK
OK
Not OK
OK
OK
OK
OK
OK
Not OK
Not OK
OK
Not OK
Not OK
Not OK
OK
Yes
CIRCUIT INTERRUPTER WILL NOT CLOSE Continued
Is the K1 Aux Relay K17
actuating?
Check for 24 VDC
at term. 7 of K17.
Hold Circuit Interrupter
switch (10, Fig 2-1) in the
closed position and check
for 24VDC at K17-4.
Check for 24
VDC at term.7
of K19.
Not OK
Replace K17 Aux relay.
see Para 4.8.34.
Repair wire.
Hold Circuit
Interrupter switch
(10, Fig 2-1) in the
closed position and
check for 24VDC at
J24 pin 9 of the
backplane module.
Check for 24VDC at
Relay K1terminal X.
Check wire number
224A16 for contiuity, loose
connections or damage.
Repair wire.
Test Diode CR-3
(see Para 4.8.29).
Replace Diode
CR-3 (see Para
4.8.29).
No
Replace K1Aux
relay K17 (see
para 4.8.34).
Test K1Aux relay
K17 Coil(see
para 4.8.25).
Not OK
Not OK
Check wire
231B16 from
K19-7 to TB4-2
for continuity.
Not OK
Check wire
231C16 from
K19-7 to K17-7
for continuity.
Check for
continuity between
K1-Y and ground.
Check wire 100K16
between K1-Y and
TB7-6 for
continuity.
Repair wire.
Release Circuit Interrupter
switch and Check for
continuity between Backplane
connector P6-N and K1-X.
Check wire
number 185L16
for contiuity,
loose connections
or damage.
Check for continuity between
Backplane connector J6-N
and J24-9.
Replace Backplane
module see Para. 4.8.24.
Not OK
Continued from previous page.
OK
Repair
wire.
OK
Notify next higher level
of maintenance.
Not OK
OK
Not OK
