7. Surge protector
ME 6115-545-34/9-2 C1
Figure 9-2. Rectifier Assembly
9-3. Generator Cleaning and Inspection.
a. Cleaning. Clean all metal parts with Federal
Specification P-D-680 and dry thoroughly. Uses
clean cloth to clean the stator frame. Use low pres-
sure compressed air (10 to 15 pounds pressure) to
remove dust and dirt from inside the frame and core,
and from the rotor windings.
b. Inspection. Proceed as follows
(1) Inspect stator frame for cracks and burred
(2) Inspect rotor and stator of generator and
exciter for loose, frayed, or burned windings.
(3) Inspect coupling disks and fan for distor-
tion and excessive wear.
(4) Inspect for missing or defective hardware.
(5) Inspect rotating diode assembly for broken
diode cases. Test diodes per paragraph 14-10.
9-4. Generator Repair and Rebuild.
a. Generator Repair. Proceed as follows:
(1) Replace or rebuild all defective parts (re-
fer to paragraph 9-2d for disassembly information.)
To remove coils from an iron core, it is recom-
mended that the part be heated in a moderate oven
temperature (1500 C) to facilitate removal. Single
coils should not be replaced as adjacent parts of
the winding may be damaged during coil removal.
(2) Apply varnish to any damaged areas of
(3) Replace damaged exciter rotor or stator.
b. Generator Rebuilding (50/60 Hz). Proceed as
(1) Stator winding procedures.
(a) Single wires may be spliced by brazing.
The splice is to be insulated by sliding sleeving over
the wire prior to brazing and relocating the sleeving
over the splice after completion. The sleeving is
to extend a minimum of 1/2-inch beyond the bare un-
insulated portion of wire. The sleeting material iS
to be the same as that used for cross-overs on the
connection end. Splices shall be made in the end
turn of the coil only and shall not be made in the
straight leg. Where more than one splice is requir-
ed, the second splice must not occur on the same
coil end and must not occur in adjacent coils. Where
more than one splice is necessary in the same coil
or an adjacent coil, the splice may be made in the
connection end of the coil.
Change 1 9-5