ARMY TM 9-6115-641-24
AIR FORCE TO 35C2-3-456-12
2-60-2. Testing.
a. Shut down generator set.
b. Remove control box top panel, paragraph 2-16-1.
c.
Tag and disconnect current transformer (2, Figure 2-16) electrical leads from secondary terminals.
d.
Set multimeter for ohms and check for continuity between secondary terminals A1 and A2, B1 and B2, and
C1 and C2.
e.
If continuity is not present, current transformer is defective and must be replaced. Contact next higher level
of maintenance.
f.
If continuity is present, connect electrical leads to secondary terminals and remove tags.
g.
Install control box top panel, paragraph 2-16-4.
2-61.
AC CIRCUIT INTERRUPTER RELAY.
2-61-1. Inspection.
a.
Shut down generator set.
b. Open left side engine access door and disconnect negative battery cable.
c.
Remove control box top panel, paragraph 2-16-1.
d.
Inspect AC circuit interrupter relay (4, Figure 2-16) for dents, cracks, and loose or stripped studs.
e.
Install control box top panel, paragraph 2-16-4.
f.
Connect negative battery cable and close left side engine access door.
2-61-2. Removal.
a.
Shut down generator set.
b. Open left engine access door and disconnect negative battery cable.
c.
Remove control box top panel, paragraph 2-16-1.
d.
Tag and disconnect electrical leads to AC circuit interrupter relay (4, Figure 2-16).
e.
Remove screws (3) and AC circuit interrupter relay (4) from output box.
2-61-3. Testing.
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
Shut down generator set.
Open left side engine access door and disconnect negative battery cable.
Remove central box top panel, paragraph 2-16-1.
Set multimeter for ohms and check for open circuits between terminals A1 and A2, B1 and B2, C1 and C2, 11
and 12.
Connect jumper wire from cranking relay terminal A1 to AC circuit interrupter relay terminal X.
Connect negative battery cable.
Check for closed circuits (continuity) between terminals A1 and A2, B1 and B2, C1 and C2, 11 and 12.
Disconnect negative battery cable.
Replace AC circuit interrupter relay if indications are other than above.
If replacement is not needed, remove jumper wire.
Install control box top panel, paragraph 2-16-4.
Connect negative battery cable and close left side engine access door.
2-91
