ARMY TM 9-6115-672-14
AIR FORCE TO 35C2-3-444-32
MARINE CORPS TM 09244A/09245A-14
4-94
4.8.10 VOLTAGE ADJUST Switch S18.
a. Inspection.
(1)
Shut down generator set, paragraph 2.11.2.
(2)
Release DCS control panel by turning two fasteners, and lower DCS control panel slowly.
(3)
Inspect VOLTAGE ADJUST switch (8, Figure 4-13) for loose connections and mounting hardware,
and other damage.
(4)
Raise and secure DCS control panel with two fasteners.
b. Testing.
(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 VOLTAGE ADJUST switch (8, Figure 4-13).
(5)
Set multimeter for ohms, and connect across VOLTAGE ADJUST switch (8) 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 VOLTAGE ADJUST switch (8) in UP position. Multimeter should indicate continuity on
terminals 2 and 3.
(7)
Hold VOLTAGE ADJUST switch (8) in DOWN position. Multimeter should indicate continuity on
terminals 2 and 1.
(8)
If indications are not as above, replace VOLTAGE ADJUST switch.
(9)
Connect electrical leads to VOLTAGE ADJUST switch (8), 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 VOLTAGE ADJUST switch (8, Figure 4-13).
(5)
Remove jamnut (6) and toothed washer (7) securing VOLTAGE ADJUST switch (8) to DCS
control panel.
