TM5-6115-593-34 NAVFAC P-8-631-34 TO-35C2-3-463-2 left on untaped coil after insertion, to help keep wires from being displaced. (q) Wind stator coils using number of turns and wire per winding data, figure 11-19. (r) Sleeve leads with flexible braided glass treated sleeving. (s) Apply slot liner insulation 5-5-5 (item (C)) and coil separator (item (B)) as shown in stator slot detail, figure 11-20. (t) Make 14 pole series connections per winding diagram. (u) Insert slot wedge (item A)) in slot as shown in figure 11-19. (v) Make high potential test.  Test voltage to be 2000 volts per coil connected in series. (w) Bake stator as follows: (1) Vacuum impregnate until bubbling ceases. (2) Allow to drain. (3) Bake in 300°F (149°C) oven for 8 hours. (x) Type epoxy class F. (y) The wound stator should be examined for complete coverage with not strings or beads, and with openings between extended position of slot tubes, blistering or peeling, and complete cure with tack-free surfaces and good bonding strength. 11-14.  EXCITER ARMATURE.  The exciter armature is the rotor part of the brushless exciter that provides excitation current for the generator. The exciter armature and rotating rectifer assembly is mounted on the shaft of the generator.  The rotating rectifier has six diodes and a surge protector mounted on heat sinks. a. Inspect.  Inspect the rotor as follows: (1) Inspect for loose, frayed, or burned windings. (2) Inspect shaft for burrs or indications of wear. b. Test.  Disconnect leads from rotating diode assembly before testing. (1) Growler Test.  Perform a growler test on the rotor as follows: (a) Place the rotor on the growler and energize. (b) Hold a thin piece of metal, such as a hacksaw blade, directly over the top slot of the rotor and along the length of the slot.  If the coil is shorted the blade will vibrate rapidly and cause a growling noise. (c) If the above test is not within the limits specified, proceed with the repair procedures. (2) Rotating Rectifier Test.  Refer to paragraph 11-8b and test the diodes and surge protector on the rotating rectifier assembly. c. Replacement.  For removal and replacement of the exciter rotor, refer to paragraph 11-6. d. Repair. (1) Replace or rebuild all defective parts. 11-35