Subaru XT 1988 Service Manual page 1222

6-2
BODY ELECTRICAL SYSTEM
SERVICE PROCEDURE
Battery
REMOVAL AND INSTALLATION
1) Disconnect the positive
(+)
terminal after disconnecting
the negative (-) terminal of battery.
2) Remove flange nuts from battery rods and take off
battery holder.
3) Remove battery.
4) I nstallation should follow the removal procedure in the
reverse order.
Fig. 13
a. Clean battery cable terminals and apply grease to retard the
formation of corrosion.
b. Connect the positive
(+)
terminal of battery and then the
negative (-) terminal of the battery.
INSPECTION
1) External parts
Check for the existence of dirt or cracks on the battery case,
top cover, vent plugs, and terminal posts. If necessary, clean
with water and wipe with a dry cloth.
Apply a thin coat of grease on the terminal posts to prevent
corrosion.
2) Electrolyte level
Check the electrolyte level in each cell.
If
the level is below
MIN LEVEL, bring the level to MAX LEVEL by pouring
distilled water into the battery cell. Do not fill beyond MAX
LEVEL.
12
a. Electrolyte has toxicity; be careful handling the fluid.
b. Avoid contact with skin, eyes or clothing. Especially at
contact vvith eyes, blush with water for 15 minutes and get
prompt medical attention.
c. Batteries produce explosive gasses. Keep sparks, flame,
cigarettes away.
d. Ventilate when charging or using in enclosed space.
e.
On the 75D23R battery, peel off the label along the cutting
line, remove the cap and add distilled water.
3) Specific gravity
Indicator is provided for checking the specific gravity and the
battery condition.
Blue
INDICATOR SIGN
O.K.
()=:::>
Blue
O.K.
White
--©
©:>
Red or white
CHARGING CHARGING
NECESSARY NECESSARY
L6·1219
Fig. 14
"OK"
Charged condition
Specific gravity> 1.15
"Charging
The battery must be recharged when
engine does not start.
necessary"
Specific gravity
<
1.15
4) Voltage under high discharge
Charging (or discharging) the battery raises (or lowers) the
voltage but after stopping the charging (or discharging) the
voltage gradually varies and finally settles at about 2 volts
per cell. Therefore, to check the real condition of the battery,
it is necessary to measure the voltage with the battery under
high discharge. A simple method is the use of a high-discharge
battery tester.
Check that the individual cell voltages are more than 1.5 volts
and the voltage differences between the cells are within 0.1
volt when the measurements are made for 5 seconds per cell.