MAINTENANCE
108
HOW TO PUT BATTERIES IN STORAGE
Batteries are to be placed on a wooden pallet and stored
in a dry, moderately cool area.
Lead acid batteries will slowly “self--discharge” over a pe-
riod of time due to their chemical make--up. If the self--dis-
charge is left uncontrolled, excessive sulfation can occur
which is difficult to reduce and can damage the plates. A
discharged battery with a specific gravity of 1.100 will
freeze at --7.8
°
C (+18
°
F). A fully charged battery with a
specific gravity of 1.280 will freeze at --66
°
C (--87
°
F).
This “self--discharge” is due to a chemical reaction; there-
fore, that chemical reaction can be accelerated by heat
resulting in more rapid “self--discharge”. The rate of dis-
charge can amount to an average of about 0.001 point
drop in specific gravity per day.
The following procedure can be followed when placing a
battery is storage or when not in operation for more than
30 days:
a.
Give an equalizing charge prior to placing new bat-
teries in storage. Used batteries are to be fully
charged then allowed to balance for approximately
three more hours.
b.
Neutralize and clean the battery. Clean with a solu-
tion of 16 ounces of baking soda to one (1) gallon
of water.
c.
Store in a cool dry location.
d.
Check each cell in the battery at least once every
30 days and boost charge when specific gravity
falls below 1.240.
e.
Protect batteries from ambient contamination.
If a greasy film forms on the top of a battery, this is acid
and must be neutralized with the solution described
above.
When a truck is to be placed in service after storage, it
must be given the 150 hour inspection shown in the Rec-
ommended Schedule of Maintenance.
OPERATING PROCEDURES FOR A NEW OR
REBUILT ENGINE
A new or rebuilt engine must be operated under special
conditions during the first 50 hours. These special condi-
tions prevent damage to the engine until the new parts
can wear and adjust to fit each other.
Property of American Airlines
Содержание CHALLENGER H165XL
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