Table of Contents
Advertisement
a.
c.
Hold one ohmmet2:. ICad point on the threc!Jc d end of the dicdr .
Ho!d ih~: other
L
lead poirrt on the wi:a
terminal
end.
Gbservc
.and note the indicated
resk~ance.
Now reverse
the lead connectioris
on the diode.
Aguin o!xzrve
and noiz the ohm-
meter indicated
rF:jistunce.
Gmcratly
spzaking.,
if an infinite
of very
hi&
Fe-
sistance
was inllicatzd
with
the Icads connected
me way ai,J a low,
rckgbie
resistance
was ir;dicated
with the leads conxcf~~d
the opposite
way,
the diodz
may be consider&
good.
7.
24 Vo It DC Power Supply
Test
CAUTION:
MAKE
SURE
GENERATOR
OUTPUT
IS NOT
CONNECTED
TO
--
A.
B.
c.
D.
E.
F.
AN
AIRCRAFT.
Start
the generator
set and operate
it for normal power delivery
without
closing
the output
load contactor.
.
' Place test bank switch
(34,
Fig.
2) in AIRCRAFT
position.
,
Lift
red cover on 24 volt
Power supply switch
(42) and place switch
in UP
position.
Measure
DC voltage
between temrinafs
E (+) and N (-) on the output
terminal
panel.
Voltage
should be 27 z 2 volts
DC, with
no load on the power supply.
Close the output
load co&actor
with
contactor
control
switch
(20).
It should
close and remain ciosed.
Position
power supply switch
(42) to the DOWN
position.
Contactor
should
open,
and remain open even when contactor
control
switch
(20) is actuated.
Au g 25. .035
.
2-3
Page 31
Hide quick links:
Advertisement
Table of Contents
