CH–3 CHARGING SYSTEM – PREPARATION EQUIPMENT Battery specific gravity gauge Except maintenance–free battery Torque wrench Vernier calipers Rotor (Slip ring) ON–VEHICLE INSPECTION 1. CHECK BATTERY ELECTROYTE LEVEL AND VOLTAGE (a) Check the electrolyte quantity of each cell. Maintenance–Free Battery: If under the lower level, replace the battery (or add distilled water if possible.). Need to check the charging system. Except Maintenance–Free Battery: If under the lower level, add distilled water. (b) Except Maintenance–Free Battery: Check the specific gravity of each cell. Standard specific gravity: 1.27–1.29 at 20°C (68°F) If the specific gravity is less than specification, charge the battery. (c) Maintenance–Free Battery: Measure the battery voltage between the negative (–) and positive (+) terminals of the battery. Standard voltage: 12.7–12.9 V at 20°C (68°F) HINT: • Before measuring the voltage, turn the ignition switch OFF and turn off the electrical systems (headlight, blower motor, rear defogger etc.) for 60 seconds to remove the surface charge. • If the vehicle has been running, wait 5 minutes or more after the vehicle stops before measuring the battery voltage. If the voltage is less than specification, charge the battery. HINT: Check the indicator as shown in the illustration. Blue White Red OK Charging Insufficient Necessary Water CH0712 208041