Ford COUGAR 1968 Shop Manual page 595

PART
13-2
-
Charging System Testing
good service demands that the rea-
son for this condition be found, It
may be necessary to follow trouble
shooting procedures to locate the
cause of the trouble (Part 13- 1).
Hydrogen and oxygen gases are
produced during normal battery op-
eration. 'This gas mixture can explode
if flames or sparks are brought near
the vent openings of the battery. 'l'he
sulphuric acid in the battery electrolyte
can cause a serious burn if spilled
on the skin or spattered in the eyes.
It should be flushed away with large
quantities of clear water.
Before attempting to test a battery,
it is important that it be given a
thorough visual examination to deter-
mine if it has been damaged. The pre-
sence of moisture on the outside of the
case and/or low electrolyte level in one
or more of the cells are indications of
possible battery damage.
The Rotunda batteries incorporate
a single one-piece cover which com-
VOLT-AMP ALTERNATOR TESTER
f
111
A R E
27-38
+
A
+
DISCONNECT PLUG TO ALTERNATOR
FROM REGULATOR J
1397.A
pletely seals the top of the battery
and the individual cell connectors.
FIG.
7-Autolite S t a t o r Neutral Voltage-Test
This cover must not be pierced with
test orobes to verform individual cell
tests. One battery cell has a special
vent cap. The center of the cap will
glow if the electrolyte level is low.
Wipe the top of the cap clean before
checking for the glow effect. If this cap
glows, check the electrolyte level in
all cells.
'IESTS USING 'THE
RO'TU NDA SRECA-200 CELL
ANALYZER
The Rotunda Cell Analyzer (S-
RECA-200) measures the individual
cell voltages by inserting probes into
the cell openings. Follow the instruc-
tions that come with the unit.
'TESTS USING 'THE
ROTUNDA ARE
16-31
BAVI"TERY-STAR'I'ER
'TESTER
A battery can also be tested by
determining its ability to deliver cur-
rent. This may be determined by con-
ducting a Battery Capacity Test. Fig.
12 shows the battery capacity test
in outline form.
BATTERY CAPACITY TEST
A high rate d i s c h a r e tester (RO-
tunda A R E 16-31 Battery-Starter Test-
er) in conjunction with a voltmeter is
used for this test.
1.
Turn the control knob on the
Battery-Starter Tester to the O F F
position.
CONTACT
DIODE
PLATE
J1211-E
FIG.
8-Autolite Diode Test
2. Turn the voltmeter selector
switch to the 20-volt position.
3. Connect both positive test leads
to the positive battery post and both
OHMMETER ARE 27-42
CONTACT
EACH
\
STATOR LEAD TERMINAL
FIG.
9-65-Ampere Autolite
Alternator Diode Test
negative test leads to the negative
battery post. The voltmeter clips
must contact the battery posts and
not the high rate discharge tester