ARMY TM 9-6115-673-13&P
AIR FORCE TO 35C2-3-512-1
(4) Remove nuts, lockwashers, screws, washers, and cover.
(5) Remove GFCI receptacle from instrument panel.
d.
Installation.
(1) Insert GFCI receptacle (Figure 4-33) into instrument panel.
(2) Position cover over GFCI receptacle and secure both with washers, screws,
lockwashers, and nuts.
(3) Connect electrical leads and remove tags.
(4) Close and secure instrument panel.
START-PREHEAT/PREHEAT/OFF/START ROTARY SWITCH.
a.
Inspection.
(1) Shut down generator set.
(2) Release instrument panel by turning fastener, open instrument panel slowly.
(3) Inspect START-PREHEAT/PREHEAT/OFF/START rotary switch for security,
cracks, corrosion, and other damage.
(4) Close and secure instrument panel.
b.
Testing.
(1) Shut down generator set.
(2) If connected, disconnect power source at NATO slave receptacle.
(3) Release instrument panel by turning fastener, open instrument panel slowly.
(4) Tag and disconnect START-PREHEAT/PREHEAT/OFF/START rotary switch
Refer to Electrical Schematic Figure FO-1 (MEP-531A) or Figure FO-2 (MEP-501A)
to determine circuits made to corresponding switch positions.
(5) Check continuity until all four positions have been checked.
(6) If readings are not as noted in schematic, switch is unserviceable and must be
replaced.
(7) Connect electrical leads, remove tags, close and secure instrument panel.
