ARMY TM 9-6115-644-24
AIR FORCE TO 35C2-3-446-12
MARINE CORPS TM 09249A/09246A-24/2
b.
c.
d.
e.
f.
g.
h.
i.
2-28-4
a.
b.
c.
d.
e.
f.
2-28-5
a.
b.
c.
d.
e.
Open battery access door and disconnect negative battery cable.
Release control panel by turning two fasteners and lower control panel slowly.
Disconnect wire 181A from positive (+) terminal of FREQUENCY meter (HERTZ).
Set multimeter for DC milliamps and connect positive lead to positive (+) terminal of FREQUENCY
meter (HERTZ) and negative lead to wire 181A.
Connect negative battery cable, start and operate generator set at rated voltage and adjust
frequency to 400 Hz.
Multimeter indication should be between 0.240 and 0.260 DC milliamps.
Replace FREQUENCY meter (HERTZ) if multimeter readings are not as stated above.
Raise and secure control panel.
Removal.
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.
Tag and disconnect FREQUENCY meter (HERTZ) (21, FIGURE 2-12) electrical leads.
Remove nuts (19), washers (38), and screws (20).
Remove FREQUENCY meter (HERTZ) (21) from control panel.
Installation.
Insert FREQUENCY meter (HERTZ) (21, FIGURE 2-12) into control panel.
Install screws (20), washers (38), and nuts (19).
Connect electrical leads and remove tags.
Raise and secure control panel.
Connect negative battery cable. Close battery access door.
2-29 AMMETER (PERCENT RATED CURRENT).
2-29-1
Inspection.
a.
Shut down generator set.
b
Inspect ammeter for broken lens, cracked housing, and other damage.
2-29-2
Testing.
a
Shut down generator set.
b.
Open battery access door and disconnect negative battery cable.
c.
Release control panel by turning two fasteners and lower control panel slowly.
d.
Tag and disconnect wire 183A from terminal 1 of ammeter (PERCENT RATED CURRENT).
2-62 Change 1
