ARMY TM 9-6115-671-14
AIR FORCE TO 35C2-3-446-32
MARINE CORPS TM 09249A/09246A-14
4-94
(1)
Shut down generator set, paragraph 2.11.2.
(2)
Open BATTERY ACCESS door (Figure 1-2), and disconnect negative battery cable.
(3)
Release DCS control panel by turning two fasteners, and lower DCS control panel slowly.
(4)
Tag and disconnect electrical leads from FREQUENCY ADJUST switch (13, Figure 4-13).
(5)
Set multimeter for ohms, and connect across FREQUENCY ADJUST switch (13) terminals.
Multimeter should indicate open circuit between terminals 1 and 2, 2 and 3, and 1 and 3. Refer to
Schematic FO-1.
(6)
Hold FREQUENCY ADJUST switch (13) in UP position. Multimeter should indicate continuity on
terminals 2 and 3.
(7)
Hold FREQUENCY ADJUST switch (13) in the DOWN position. Multimeter should indicate
continuity on terminals 2 and 1.
(8)
If indications are not as above, replace FREQUENCY ADJUST switch.
(9)
Connect electrical leads to FREQUENCY ADJUST switch (13), and remove tags.
(10) Raise and secure DCS control panel with two fasteners.
(11) Connect negative battery cable to battery, and close BATTERY ACCESS door.
c. Replacement.
(1)
Shut down generator set, paragraph 2.11.2.
(2)
Open BATTERY ACCESS door (Figure 1-2), and disconnect negative battery cable.
(3)
Release DCS control panel by turning two fasteners, and lower DCS control panel slowly.
(4)
Tag and disconnect electrical leads from FREQUENCY ADJUST switch (13, Figure 4-13).
(5)
Remove jamnut (11) and toothed washer (12) securing FREQUENCY ADJUST switch (13) to DCS
control panel.
(6)
Remove FREQUENCY ADJUST switch (13) and tab washer (14) from DCS control panel.
(7)
Position tab washer (14) and FREQUENCY ADJUST switch (13) on DCS control panel.
(8)
Secure FREQUENCY ADJUST switch (13) to DCS control panel with toothed washer (12) and
jamnut (11).
(9)
Connect electrical leads to FREQUENCY ADJUST switch (13), and remove tags.
(10) Raise and secure DCS control panel with two fasteners.
(11) Connect negative battery cable to battery, and close BATTERY ACCESS door.
4.8.12 PANEL LIGHTS Switch S2.
