Once a year, the battery terminals and the cable clamps should be cleaned. Loosen the clamps and remove the cables, negative cable first. On batteries with posts on top, the use of a puller specially made for the purpose is recommended. These are inexpensive, and available in most auto parts stores. Side terminal battery cables are secured with a bolt.
| Fig. 1: Top terminal battery clamps may be removed with
this inexpensive tool
|
Clean the cable clamps and the battery terminal with a wire brush, until all corrosion, grease, etc. is removed and the metal is shiny. It is especially important to clean the inside of the clamp thoroughly, since a small deposit of foreign material or oxidation there will prevent a sound electrical connection and inhibit either starting or charging. Special tools are available for cleaning these parts, one type for conventional batteries and another type for side terminal batteries.
| Fig. 2: Clean battery cable clamps with a wire brush
|
Before installing the cables, loosen the battery hold-down clamp or strap, remove the battery and check the battery tray. Clear it of any debris, and check it for soundness. Rust should be wire brushed away, and the metal given a coat of anti-rust paint. Replace the battery and tighten the hold-down clamp or strap securely, but be careful not to overtighten, which will crack the battery case.
After the clamps and terminals are clean, reinstall the cables, negative cable last. Do not hammer on the clamps to install. Tighten the clamps securely, but do not distort them. Give the clamps and terminals a thin external coat of grease after installation, to retard corrosion.
Check the cables at the same time that the terminals are cleaned. If the cable insulation is cracked or broken, or if the ends are frayed, the cable should be replaced with a new cable of the same length and gauge.
| Fig. 3: Battery maintenance may be accomplished with
household items (such as baking soda to neutralize spilled acid) or with
special tools such as this post and terminal cleaner
|
| Fig. 4: Place the tool over the terminals and twist to
clean the post
|
WARNING
Keep flame or sparks away from the battery. It gives off explosive hydrogen
gas. Battery electrolyte contains sulfuric acid. If you should splash any on
your skin or in your eyes, flush the affected area with plenty of clear water.
If it lands in your eyes, get medical help immediately.
