e. When the battery is charged removed it from the charger and
top to remove any acid. Inspect the battery once again for any cracks
have opened due to the charging process. Screw the vent plugs tightly
If the battery has handles and the paint on them is worn, apply a coat
resistant black paint.
17. PLACING BATTERIES IN SERVICE.
a. New batteries that you receive will probably be charged and dry. If
they are, you will have to fill them with electrolyte in preparing them for
service. Instructions are generally received with new batteries on how to prepare
them for service and should always be followed. In general, the following
b. Remove and destroy the sealing devices from the vent holes of the vent
plugs. Remove the vent plugs and fill each cell with electrolyte to the proper
level. The temperature of the battery and electrolyte must be at least 600. Let
the battery stand for 30 minutes after filling to allow the plates and separators
to become soaked, then check the specific gravity of each cell. The electrolyte
level must be correct.
c. The battery is now ready for use unless one or more of the following
(1) The specific gravity of any cell is below 1.250 after the 30-minute
(2) The battery will not be used for 12 hours after filling.
(3) The battery is going into service in temperatures below zero.
d. If any of the above conditions exist, the battery must be charged. If
you have the time and equipment it is always best to charge the battery, regardless
of condition, to insure longer service life. After charging, the specific gravity
should be at or very near 1.280.
e. At the time the battery is prepared for service it must have a service
date stamped on it. This is so that its age can be determined at a later date.
Stamp the date with 1/8-inch or 3/16-inch metal stamps (fig 26). The date will
consist of the letter S followed by the month and year. For example, if the
battery was prepared in January 1970, the date will be S-1-70.
SUMMARY. This lesson has introduced you to the 500-ampere starter
generator test stand. You should now be familiar with all of the controls and
indicating devices; realize that the test stand batteries must be kept in top
condition to meet the demands which are made on them when performing tests; and
have a general knowledge of the types of tests which can be made with the test
stand. Your basic understanding of the test stand will assist you in learning the
specific testing procedures discussed in following lessons.
OS 010, 3-P31