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FAMILY
GENERATOR
SERVICE
DATA
Type
.
Nominal voltage
.
Continuous peak amperage (ammeter limit) .
Temporary peak amperage
Continuous peak wattage
Temporary peak wattage
Cut-in speed (12 V at 68' F - 20' C)
Speed for maximum continuous amperage (25 at 680 F - 20° C)
Speed for maximum peak amperage (30 at 68' F - 20' C)
Maximum speed, steady. . .
Rotation direction (drive end)
Pole shoes . . . .
Field winding. . . . .
Regulator. separate . .
Engine-ta-generator drive ratio (new belt)
Pole shoe inner diameter
Brush Part No.
. . . . .
Bench Testing Data.
Output test (at 68' F - 200 C) :
Steady voltage . . . . . . . . . . . . .
Speed for abt. 1 hour and 45 min. . . .
Current delivery to resistor (at 14 Volts)
After generator has been raised to operation temperature
by
running it at the above specified speed and time rates, at
steady 12 voltage, read the amperage at every generator
speed increment: each reading
will
represent a point of the
output curve of the generator as shown in fig. 55!.
Heating test:
Speed, for abt. 1 hour and 45 min.. . .
Current delivery to resistor (at 14 Volts)
1
field frame, not above .
Overheating
commutator. not above .
Ohmic resistance test (at 680 F - 200 C) :
Armature resistance (bar-to-bar:
15
to
1)
Field winding resistance . . . . . . . .
Mechanical characteristics test:
Load of springs on new brushes
Maximum commutator out-of-round
Mica undercut depth . . . . . . .
Lubrication.
Drive end ball bearing .
Commutator end head oiler
335
DN
62
L
12
25
30
360
420
1,580 to 1,740 r.p.m.
2,250 to 2,640 r.p.m.
2,400 to 2,800 r.p.m.
10,000 Lp.m.
counterclockwise
2
shunted
IR50H
2 to I
2.5955"~.~. (65.926~.111O mm'
9914450
12
S,OOO r.p.m.
25±0.S Amps
5,000 r.p.m.
25±0.S Amps
176' F (SO' C)
230' F (110' C)
0.1I5±0.008 ohms
4.S±0.2 ohms
2.3IS±.1I0 Ibs (1.0SO±0.OSO kg)
.0012" (0.03 rom)
.0236" to .027S" (0.6 to 0.7 rom)
FIAT MR 3 grease
rIA
T engine oil
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