50
5-4 S
ili
con
rectifier
Using a radio tester, check for continuity. (Fig.
(
111
)
If there
is
continuity
in
condition @ and no
continuity
in
condition ®• the rectifier
is
in
good
condi
tion.
NOTE
:
Use the radio tester
with
the knob
in
the SI range
of
SCB
le.
5-5
Battery
lnspection a
ndsenicin
g
(I)
Check the battery electrolyte level.
(2) Measure the specific gravity
of
battery e-
lectrolyte with a hydrometer. Place a glass
cy
linder vertically
and
suck the electrolyte
slowly, When the electrolyte level rises to
1he
eye level as shown, read the scale on
th
e
hydrometer. (Fig.
11
2)
If the specific gravity
is
1,200 (as
corrected
20
°C
or
68°F),
recharge
the battery.
(3)
If
th
e electrolyte level drops excessively,
check the ch
ar
ging system.
(
4)
When distilled water has been added, measure
th
e specific gravity afier
!h
e battery has been
sufficiently charged.
Charging
Connect as shown
in
Fig.
114
and cha
rg
e
th
e
battery.
NOTES:
. A
void
boost-chargi
ng
the battery since it may
shorten the service life
of
the battery excessively.
U the battery must
be
boost-charged, the maxi-
mum
charging is 2.0A.
•W
hen
charging the battery, keep open flames
•A
fter charging, thoroughly wipe
up
spilled e-
le<:trolyte.
Ap
pl
y a coat
of
grease to the battery
terminals.
, When charging the hatterie,;,
conned
lbem
in
series. Tbe total a,allable voltage
ca
n be com-
puted
by
muJtiplying
the
unit voltage
by
the
number
of
batteries,
~~
~
~
Fig.
llJ
To Next Page
