Preparation Of Electrical System; Fig. 3-11Battery Electrolyte Level - Inspect; Fig. 3-12Specific Gravity Of Battery Electrolyte; Table 3-1 Specific Gravity Of Electrolyte - Mitsubishi S6B Operation & Maintenance Manual

Chapter 3 OPERATION

Preparation of electrical system

Battery - Inspect
If battery electrolyte is spilled on your skin, flush immediately with plenty of water. If battery electrolyte enters the
eyes, flush them immediately with lots of fresh water and seek medical attention at once.
Do not use open flames or other fire hazards near the battery. When handling the battery, be careful of sparks gen-
erated by accidental shorting.
Battery electrolyte level - Inspect
Battery electrolyte evaporates during use and the fluid
level gradually decreases. The correct fluid surface
level is between the LOWER LEVEL and UPPER
LEVEL lines.
For the battery without level lines, the correct fluid sur-
face level is about 10 to 15 mm [0.394 to 0.591 in.]
above the top of the plates.
If the fluid level is low, remove the caps and add dis-
tilled water to the proper level.
Note: When adding distilled water, pour in carefully.
Specific gravity of battery electrolyte -
Check
If the specific gravity measured at 20°C [68°F] is lower
than 1.22, then charge the electrolyte.

Table 3-1 Specific gravity of electrolyte

Specific gravity at
20°C [68°F]
From 1.26 to 1.28 Fully charged
From 1.22 to 1.26
Less than 1.22 Discharged
3-6
Condition Remedy
-
Charged Charge
Charge
10 to 15 mm
[0.394 to 0.591 in.]
Fig. 3-11 Battery electrolyte level - Inspect
ELECTROLYTE
SURFACE
FLOAT
ELECTRO-
LYTE
GLASS TUBE
Fig. 3-12 Specific gravity of battery electrolyte - Check
Proper
level