Quantcast Figure 3-8. Voltage regulator adjustment (sheet 1 of 5).

 

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Figure 3-7 engine generator disassembly and assembly
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TM-10-3930-634-34 Truck Lift Fork; Diesel Engine Pneumatic Tired Wheels Rough Terrain 6 000 Lb. Capacity 24 Load Center Anthony Model MIT 6-2 Manual
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Figure 3-8. Voltage regulator adjustment (sheet 2 of 5).
TM 10-3930-634-34
1. INSTALL SUITABLE ADAPTER IN THE CONNECTORS OF THE REGULATION UNIT.
2. USE A MULTIMETER AND TEST FOR CONTINUITY BETWEEN THE ARMATURE CONNECTION
OF THE TEST ADAPTER AND THE CUTOUT RELAY ARMATURE. CONTINUITY SHOULD
BE INDICATED.
3. CLOSE THE CIRCUIT BREAKER CONTACTS AND TEST BETWEEN THE ARM AND BATTERY
CONNECTIONS OF THE TEST ADAPTERS. CONTINUITY SHOULD BE INDICATED.
4. TEST BETWEEN THE ARMATURE AND FIELD CONNECTIONS OF THE TEST ADAPTERS.
ZERO RESISTANCE SHOULD BE INDICATED.
5. OPEN THE VOLTAGE REGULATOR UNIT CONTACTS. 175 HMS, THE RESISTANCE OF THE
SHUNT RESISTOR, SHOULD BE INDICATED.
6. CLOSE THE VOLTAGE REGULATOR UNIT CONTACTS AND OPEN THE CURRENT REGULATOR
UNIT CONTACTS. 150 OHMS, THE RESISTANCE OF THE SHUNT RESISTOR SHOULD BE
INDICATED.
7. REPLACE THE REGULATOR IF IT FAILS TO MEET THE ABOVE REQUIREMENTS.
TA032034
Figure 3-8. Voltage regulator adjustment (sheet 1 of 5).
group to the starter terminal and the starter housing.
the armature at the drive end. Adjust the rheostat to
give 3.52 volts. The correct readings are 500 amperes
Connect an ammeter to the shunt and a direct current
maximum and a stall torque of 20 lbs-ft minimum. The
voltmeter to the starter terminal and starter housing.
stall torque is the product of the spring scale reading
With the voltage adjusted to 22.5 volts, the current
in pounds multiplied by the torque arm in feet. If the
should be 80 amperes maximum at 3,600 rpm. If the
current and speed are both low, inspect for high resis-
current and torque are both low, inspect for high re-
sistance in the internal connections and for improper
tance in the internal connections. If the current is high
brush contact. High current and low torque may be
and the speed is low, inspect the bearing and armature
caused by a defective armature or field coil.
for binding and incorrect alinement.
the starter (TM
Install
i. Installation.
(2) Stall torque test. With the starter connected as
10-3930-634-12).
in (1) above, fasten a torque arm and a spring scale to
3-8

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