ARMY TM 9-6115-643-24
AIR FORCE TO 35C2-3-445-22
2.59. RELAYS.
2.59.1.
lnspection.
a. Shut down generator set.
b. Inspect relays for cracks, loose mounting, and other damage.
2.59.2.
Testing.
a.
b.
c .
d.
e.
f.
Shut down generator set.
Remove applicable relay, paragraph 2.59.3.
Set multimeter for ohms and check for open circuits between terminals 7 and 4, 8 and 5, and 9 and 6. Check for
closed circuits between terminals 7 and 1, 8 and 2, and 9 and 3.
Connect multimeter between terminals A and B, and check for between 427.5 and 522.5 ohms. Using multimeter,
check for closed circuits between terminals 7 and 1, 8 and 2, and 9 and 3. Check for open circuits between terminals
7 and 4, 8 and 5, and 9 and 6.
If indications are other than above, relay is defective and must be replaced.
If no repair is needed, install relay, paragraph 2.59.4.
2.59.3. Removal.
a.
b.
c .
d.
Shut down generator set.
Open battery access door and disconnect negative battery cable.
Release control panel by turning two fasteners and lower control panel slowly.
Locate suspected defective relay (54, FIGURE 2-14), release wire clip (52), and remove relay by gently pulling
from socket.
2.59.4. Installation.
a. Install relay (54, FIGURE 2-14) in socket and secure by snapping wire clip (52) over relay.
b. Raise and secure control panel.
c. Connect negative battery cable. Close battery access door.
2.60. GOVERNOR CONTROL UNIT.
2.60.1. Inspection.
a. Shut down generator set.
b. Inspect governor control unit for loose connections and mounting, and other damage.
2.60.2. Removal.
a .
b .
c .
d .
e .
Shut down generator set.
Open battery access door and disconnect negative battery cable.
Remove control box top panel, paragraph 2.15.1.
Tag and disconnect governor control unit (56, FIGURE 2-14) electrical leads.
Remove screws (55) and governor control unit (56).
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