| Tweet |
Custom Search
|
|
|
||
 TM 55-1905-222-14
6-5 REPAIR ALTERNATOR (Continued).
3
TEST ROTOR ASSEMBLY
a
Check rotor current draw or
resistance of winding Correct
current draw of 20 volts is 090-1 50
amps Correct winding resistance is
165 ohms + 10%
b
Test slip rings with Multimeter
Test should show no circuit from
slip rings to ground
c
Get a new rotor assembly if the old
one falls the tests above
4
TEST RFI CAPACITOR
a
Use Multimeter and check for no
circuit between leads A-B, B-C and
A-C
b
Replace capacitor assembly (31) if
any short condition is indicated
5
TEST FIELD DIODE
a
Test each anode lead to common
cathode using a diode tester
b
Re-use field diode if it tests okay,
otherwise replace
6
TEST RECTIFIER DIODES IN POSITIVE
HEAT SINK
a
Test individual diodes as shown,
using a diode tester
b
Replace Individual diodes as
necessary
7 TEST RECTIFIER DIODES IN NEGA-
TIVE HEAT SINK
a
Test individual diodes as shown,
using a diode tester
b
Replace Individual diodes as
necessary
6-14
|
||
|
||
