P-9-TM-457-35 T.O. 35C2-3-442-2
TM-07464A-35 TM 5-6115-457-34
NOTES:
1. IF HUB WAS REMOVED, HEAT HUB, INDEX 3, TO 450 F, THEN SHRINK-FIT ON SHAFT, INDEX 1, TO SHOULDER.
2. COIL DATA:
A. WIRE SIZE: 0.040 DIA (#18 GA) CLASS 155, TYPE L2.
B. NO. OF WIRES PER TURN: 16
C. NO. OF TURNS PER COIL: 29
D. COIL GROUPING: 1 GROUP OF 12 COILS.
3. WINDING PROCEDURE:
A. WIND COILS TO PROPER SHAPE, SPECIFIED DIMENSIONS AND NUMBER OF TURNS.
B. HOLD COILS TOGETHER WITH TAPE, INDEX 9.
C. APPLY INSULATION SLEEVING, INDEX 8. AND INDEX 13 (LOOSE).
D. SELECT AN ARBITRARY SLOT ON CORE, INDEX 2, AND INSERT FIRST COIL WITH START LEAD IN THE BOTTOM
OF SLOT NO. 1 AND THE ENDING LEAD IN THE BOTTOM OF SLOT NO. 2.
E. REPEAT SEQUENCE UNTIL WINDING IS COMPLETE.
WARNING
WELDING OPERATIONS PRODUCE HEAT, HIGHLY TOXIC FUMES, INJURIOUS RADIA-
TION, METAL SLAG AND AIRBORN PARTICLES. WELDING GOGGLES, WITH PROPER
TINTED LENSES, APRON OR JACKET AND WELDER'S BOOTS ARE REQUIRED.
F. CONNECT ENDING LEAD OF ARBITRARY COIL TO STARTING LEAD OF ADJACENT COIL. CONTINUE CON-
NECTING COIL ENDING LEAD TO ADJACENT COIL STARTING LEAD FOR ALL COILS UNTIL ONLY TWO LEADS
REMAIN. HOMOGENEOUS WELD ALL CONNECTIONS.
G. CONNECT LEADS, INDEX 7, TO REMAINING TWO COIL LEADS AND HOMOGENEOUS WELD.
H. WRAP WINDING WITH TAPE, INDEX 9.
J. INSTALL RETAINER. INDEX 10. USING TAPE. INDEX 12.
4. VARNISH AS FOLLOWS:
STEP 1:
PREBAKING -
PUT INTO OVEN AT 110" C (230 F). HOLD AT TEMPERATURE FOR 4 HOURS. COOL TO APPROXIMATELY
50c (122 F).
STEP 2:
DIPPING
IMMERSE IN VARNISH. 70-4560, UNTIL BUBBLING CEASES. VISCOSITY SHALL BE HELD 20 ZAHN SEC-
ONDS USING A NO. 2 CUP. THIN WITH SOLVENT, MIL-N-15178, TYPE A/B TO MAINTAIN VISCOSITY.
STEP 3:
DRAINING -
DRAIN AND AIR DRY FOR 1 HOUR. ROTATE WOUND APPARATUS TO PREVENT POCKETING THE
VARNISH.
WIPING
STEP 4.
AFTER DRAINING BUT BEFORE BAKING, THE METAL SURFACES OF THE ARMATURE, THE BORE OF
THE ROTOR AND THE POLE FACES SHALL BE WIPED WITH A CLOTH MOISTENED WITH SOLVENT,
MIL-M-15178. TYPE A/B.
STEP 5:
BAKING
-
PUT INTO A CIRCULATING TYPE, FORCED EXHAUST, BAKING OVEN AT TEMPERATURE OF 80C (176" F)
FOR 3 HOURS, INCREASE TEMPERATURE TO 165C (329" F) AND CONTINUE TO BAKE AN ADDITIONAL
7 HOURS.
STEP 6:
COOLING -
REMOVE FROM OVEN AND COOL TO APPROXIMATELY 50C (122" F).
STEP 7:
SECOND TREATMENT (DIP IN OPPOSITE DIRECTION) - REPEAT STEPS 2 (IMMERSE FOR 1 MINUTE) 3,4,
5, AND 6.
STEP 8:
THIRD TREATMENT (DIP IN ORIGINAL DIRECTION) - REPEAT STEPS 2 (IMMERSE FOR 1 MINUTE) 3,4,
5. AND 6.
5. STAMP PART NUMBER AS SHOWN BELOW PER MIL-STD-130, 0.12 MIN HEIGHT, USING WHITE ENAMEL PAINT
30554 ASSY 70-4518
MFG (MFG CODE)
6. AFTER REWINDING, PERFORM INSPECTION SPECIFIED IN PARAGRAPH 7-5, STEPS I AND P.
Figure 7-5. 400 Hertz generator, main rotor rewind data
(sheet 2 of 2)
Legend to figure 7-5:
13. Insulation sleeving
8. Insulation sleeving
Shaft
1.
0.294 ID
0.330 ID
2.
Rotor core
14. Varnish
9. Untreated glass tape
Drive hub coupling
3.
15. Yellow locking
0.010X0.75
Key
4.
compound GRB
10. Retainer (2)
Magnet wire
5.
16. Screw
11. Insulation
0.40 DIA (#18)
17. Cable clamp (2)
wedge (24)
6. Slot cell insulation (24)
12. Banding tape
7. Lead (2)
Change 7 7-17
