TM 06858/06859D- 34
Excitation Voltage Test
and voltage -protector test as outlined in step (10) be-
(c) Correct any discrepancies before
comducting operational tests.
cover assembly (2).
(6) Coduct excitation voltage test as follows:
(b) Disconnect voltage regulator by discon-
(a) With voltmeter connected as in figure
necting and tagging the red, green and black leads.
(c) Disconnect and tag the blue and yellow
(d) Install a jumper from the GND terminal
(e) Install alternator in test circuit as
voltage regulator as directed in step (8) below.
(d) If voltmeter indication is greater than
3.7 Vdc, test for open circuit of alternator field
A means of rotating the alternator at 2000
(rotot) as directed in step (9) below.
to 3000 RPM must be provided. This test
(e) If voltmeter indication is as specified,
can be performed with the alternator in-
proceed with voltage regulator, alternator output,