Mazda 1975 Rotary Pickup Workshop Manual page 81

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5-A. BATTERY
5-A-1. Checking Battery
As the battery has an important
bility, ignition and lighting, check
periodically and always keep the
condition.
Fig. 5-1 Checking specific gravity
1. Check the electrolyte level in each cell of the bat-
tery, and add distilled water to maintain the solution
l0 - 20 mm (0.4 - 0.8 in) above the plates.
Do not overfill.
2. Check the specific gravity of the electrolyte with
a hydrometer, as shown in Fig. 5-1.
If the reading
is 1.28 or more, it indicates that the battery is fully
charged. If the reading is below 1.22, the battery
requires recharging.
3. Check the tightness of the terminals to ensure good
electrical connections. Clean the terminals and coat
the terminals with grease.
4. Inspect for corroded or frayed battery cables.
5-A-2.
Charging Battery
a. Gonstant current charge
l. If the exterior of the battery is dirty with sulphrr
ric acid or dust and dirt, wash these off with clean
water and dry thoroughly before charging the battery-
2. Check the electrolyte level and add distilled wata
if necessary.
Note:
If addition of distilled water is neglected, the plaEr
and separators will become exposed to air, causing t
sulphation to occur on the plates.
Do not add dilute sulphuric acid unless the electrolyt
has overflown or led out.
3. Connect the battery to the charger ensuring th
the polarities are correct.
influence on starta-
the following points
battery in perfect
Control unit
l g n i t i o n c o i l
relay
Di s tri b u to r
Leading ignition coil
R
Distributor caP
l g n i t i o n
switch
S t a r t i n g m o t o r
d s w i t c h
Trailing ignition coil
Fig. 5-2 Ignition system