TM 5-4940-200-35
Duty classification ...............Continuous
Fungus treatment ...Spray with MIL-V-173 varnish.
Degree of inclosure.............Full
Drive ..................................Pulley and 4 V-belts
Stator:
Type ..................................Synchronous
Number of poles ...........4
b. Exciter Classification and Rating.
Number of slots ...........54
Rating ...............................0.99 kw
Number of coils.............54
Voltage...............................110 v, de (volts, direct
Coil span .....................2 1/4 in.
current)
Turns per coil 7.............7
Amperes ............................9 amp
Wire size......................No. 15 AWG
Rated speed.......................1,450 rpm (revolutions per
Type of wire..................Copper magnet wire, heavy
minute)
synthetic resin covered.
Field winding ......................Shunt
Insulating materials .......Slot insulators, slot No. 11 x
Cooling ..............................Fan
4 core (36 rqr). Slot insu-
Duty classification ..............Continuous
lation 9 in. x 13 in. x 54
Degree of inclosure ............Full
in. No. 38 slot (54 qr).
Mounting ............................Integral
Core wedge, No. 38 slot,
c. Welder Classification and Rating.
4 3/16 in, long (54 rqr).
Voltage...............................40 v, dc
Dipping compounds .....Varnish, Type AN, Grade
Amperes ...........................200 amp
CB, MIL-V-1137A.
Rated speed.......................1,800 rpm
Dipping and baking
Field winding .....................Shunt
procedures. ................First, preheat for 1 hr at
Duty classification ...............60 percent duty cycle
320F., dip for 10 min,
Degree of inclosure.............Full
drain 10 min, bake 1 1/2
Mounting ............................Integral
hr. Second, dip for 3 min,
d. Motor-Generator Repair and Replacement
drain 10 min, bake 4 hr,
Standards.
spray with T-613 varnish,
Revolving field:
and bake 1/2 hr. All
Number of coils.............4
baking temperatures
Turns per coil................600
320F.
Turns per layer ............Random wound
Fungus treatment .........Spray with MIL-V-173
Wire size .....................No. 18 AWG (American
varnish.
Wire Gage)
e. Exciter Repair and Replacement Standards.
Type of wire..................Copper magnet wire, heavy
Exciter armature:
eze.
Number of coils ............43
Coil connection .............Series
Turns per coil -..............6
Insulating materials .......Top revolving pole piece
Number of slots ...........43
insulator (1 rqr). Bottom
Number of coils per
revolving pole piece
slot.
insulator (1 rqr). Insula-
Coil pitch ......................1 to 11
tion wrapper 0.015 x 2
Commutator pitch .........1 to 43
1/16 x 25 3/4 in. (inch) (1
Number of
rqr).
commutator bars ...........85
Dipping compounds ......Varnish, Type AN, Grade
Wire size......................No. 17 AWG
CB, MIL-V-1137A.
Type of wire..................Round, dead, soft, copper
Dipping and baking
magnet wire, heavy
procedures. ..................First, dip 3 min (minutes),
synthetic resin covered.
drain 10 min, bake 1 1/2
Type of winding.............Wave
hr (hours). Second, dip 3
Connection ..................Clockwise 11 bars
min, drain 10 min, bake
Exciter shunt field:
hr. All baking tempera-
Number of coils ............4
tures 320F. (Fahrenheit).
Number of turns per ......1,400
coil.
Turns per layer .............Random wound
Wire size......................No. 21 AWG
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