Page 1190 - Workshop Manual - Aumark (BJ1051)

53-14
Battery-Battery

8. Liquid level decreases rapidly
The main reason of liquid level decreases rapidly is that the charge current is too big, and
the charge system should be adjusted. It may because the housing or seal glue is broken of
that cell and cause the electrolyte leak if the liquid level of one cell decreases rapidly. Maybe
there is sulfuration or short circuit in that cell if the housing and seal glue are intact. Fill in
distilled water when the liquid level is decreased. Repair the crack or replace the battery
housing if they are broken.

9. There is yellow or white stuff on the battery
Yellow or white stuff on battery cover or around plates is because there is sulfuric acid
solution on the battery cover and this make the pole, wire clip and fixation bracket corrode;
white stuff is lead sulfate and yellow stuff is iron sulfate. Those two kinds of stuff have big
resistance, and they will form very big contact resistance and cause bad conductive if they
are at the wire connection place. Wipe electrolyte from battery cove and housing by a rag
invaded with 10% carbonated water. And then wash it by water, dry it with clean rag. The
stuff on wire head and poles should be wiped away by rag with carbonated water. Take the
oxidation stuff away by knife. Coat a layer of Vaseline or grease on the surface of pole and
wire clip after they are fixed.
10. Battery is iced

(a). The common reason of battery icing is that the specific gravity of electrolyte is lower at
exworks, and the electrolyte reaches to its freezing point when it is used at cold area;
specific gravity of electrolyte decreases too much when the battery is used and it is not
charged in time; the liquid level of electrolyte is low, and the engine is not run for a certain
period after distilled water is filled, so the specific gravity of electrolyte is disaccord.
(b). Move the iced battery to warm room and let it melt slowly, and then charge it with small
current; observe the voltage of every cell and the temperature of electrolyte, and the specific
gravity of electrolyte should reach to specified value after charge (refer to “Chapter 53
Battery-Battery, Basic inspection”). Replace to new pole plate or replace to new battery for
the serious iced battery.

Page 1190