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 TM 5-1940-277-20
TM 1940-20/2
2.
Disconnect strap (1) securing battery box cover (2).
3.
Remove battery box cover (2).
4.
Loosen nut and bolt (3) on battery terminals using 10 mm box wrench.
5.
Remove all cables (4) from battery beginning with (A) negative cable first.
Remove battery (5) from battery box (6).
6.
Do not allow the cleaning solution to spill on the deck or any other boat compo-
nents. Damage to the aluminum will result.
7.
Clean battery cable clamps, inside of battery box and cover. Use a mixture of bicarbonate of soda (baking soda) and
water (1/2 pound soda to 1 gallon of water).
8.
Pour mixture on or dip parts to be cleaned. Scrub with soft brush. Repeat until foaming stops. Flush with clean water.
9.
Remove heavy corrosion build-up from terminals with terminal/post cleaner and/or wire brush.
INSTALL:
NOTE
The 6TN and 6TL batteries can be mixed or matched. However, maintenance-free
batteries cannot be mixed or matched with military batteries. The 6TN and/or the 6TL
batteries will perform properly in hot weather as long as electrolyte levels are carefully
monitored. If the electrolyte expands and causes the level to rise, some fluid must be
removed. If the level becomes too low due to evaporation, distilled water may be used
to obtain the proper level. A good grade of drinking water (excluding mineral waters)
may be used if distilled water is not available.
Electrolyte (NSNs 6810-00-249-9354 and 6810-00-843-1640) have a specific gravity
of 1.280 and should be used in these batteries. Do NOT adjust the electrolyte in wet
batteries to a lower specific gravity.
1.
Position battery (5) in battery box (6).
2.
Connect battery cable clamps (4) to battery posts [connect negative terminal last (Point A)].
3.
Tighten cable clamp bolts (3) using 10 mm box wrench.
4.
Coat battery post and clamp with GAA grease.
5.
Replace battery box cover (2).
6.
Secure cover with strap (1).
7.
Close battery hatch.
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