ARMY TM 9-6115-642-24
AIR FORCE TO 35C2-3-455-12
MARINE CORPS TM 09247A/09248A-24/2
v.
Shut down generator set.
w. Disconnect jumper wire from terminal 3 of short circuit/overload relay and connect if to terminal 2.
x.
Repeat steps t and u.
y.
Shut down generator set.
z.
Disconnect jumper wire from terminal 2 of shod circuit/overload relay and connect it to terminal 1.
aa. Repeat steps t and u.
ab. Shut down generator set.
ac. Replace short circuit/overload relay if any test is not as above.
ad. If no repair is needed, remove jumper wires and connect generator set wires to short circuit/overload relay,
over/under voltage relay and AC voltage regulator as tagged. Remove tags.
ae.
2-31.3
a.
b.
c.
d.
e.
2-31.4
a.
b.
c.
d.
Raise and secure control panel.
Removal.
Shut down generator set.
Open left side engine access door and disconnect negative battery cable.
Remove control box top panel, paragraph 2-16.1.
Tag and disconnect short circuit/overload relay (33, FIGURE 2-11) electrical leads.
Open load terminal access door to gain access to nuts (32) and remove screws (31), nuts (32), and short circuit/
overload relay (33).
I n s t a l l a t i o n .
Install short circuit/overload relay (33, FIGURE 2-11) with screws (31) and nuts (32).
Connect electrical leads and remove tags.
Install control box top cover, paragraph 2-16.4.
Connect negative battery cable. Close access doors.
2 - 3 2 T e s t i n g .
2-32.1
Inspection.
a.
Shut down generator set.
b. Release control panel by turning two fasteners and lower control panel slowly.
c.
Inspect crank disconnect switch (35, FIGURE 2-11) for cracks. Ensure that switch is seated properly.
d.
2-32.2
a.
b.
c.
d.
e.
f.
9.
Raise and secure control panel.
Shut down generator set.
Release control panel by turning two fasteners and lower control panel slowly.
Set multimeterfor DC volts and connect positive lead of multimeterto terminal 1 of crank disconnect switch.
Connect negative lead of multimeter to any generator set ground.
Move MASTER SWITCH to either RUN position. Multimeter should indicate nearly O volts.
Start generator set and operate at rated frequency. Multimeter should indicate 23 to 28 VDC.
Replace crank disconnect switch if indications are other than above.
Raise and secure control panel.
2-59
T e s t i n g .
