3-40 Engine Electrical Industrial 1.6L
Built–in Hydrometer–If Equipped
A built–in temperature compensation hydrometer is
molded into the top of some maintenance free batter-
ies. When observing the hydrometer, make sure the
battery top is clean. Use a light in poorly–lit areas.
Under normal operating conditions, one of three
indications can be observed:
1. Any green appearance in the hydrometer is
interpreted as a green dot . This means the
battery is ready for testing.
2. A dark dot is visible. If the green dot is not visible
and there is a complaint about cranking, refer to
Battery Not Operating Properly or Battery Electri-
cal Drain/Parasitic Load.
Batteries
PSI does not supply batteries to equipment manufac-
turers. However, on the previous pages, you will find
some generic methods used to diagnosis common
battery problems. You may need to contact the equip-
ment manufacturer for specific procedures and specifi-
cations for the battery you are working with.
3. A clear or light yellow dot means the electrolyte
level is below the bottom of the hydrometer and is
too low for diagnosis. When you find a battery in
this condition, this may indicate high charging
voltages caused by a faulty charging system.
Because of this, the charging and electrical
systems must be checked. Refer to Charging
System Check. The yellow dot may have been
caused by the following conditions:
• Excessive or prolonged charging
• A broken case
• Excessive tipping
• If the battery has a yellow or clear
hydrometer, replace the battery if a cranking
complaint exists.
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