OM2044 Safety - Section 20 Page 20-9 WORKING NEAR BATTERIES Batteries generate hydrogen gas. Hydrogen gas is very EXPLOSIVE, and is easily ignited with a small spark or flame. Battery Hazard Prevention Before working with batteries, stop the engine and turn the key switch to the OFF position. Wait two minutes after the engine has stopped, and if no warning lights illuminate, then turn the battery disconnect switches to the OFF position. Battery electrolyte contains sulfuric acid and can quickly burn the skin and eat holes in clothing. If elec- trolyte comes in contact with skin, immediately flush the area with water. Battery acid can cause blindness if splashed into the eyes.
If acid gets into the eyes, flush them immedi- ately with large quantities of water and see a doctor immediately. Avoid short-circuiting the battery terminals through accidental contact with metallic objects, such as tools, across the terminals. When removing or installing a battery, positively identify the positive (+) terminal and negative (-) terminal and use precautions not to short circuit the terminals. If acid is accidentally ingested, drink a large quantity of water, milk, beaten eggs or vegetable oil. Call a doctor or poison prevention center immediately. Always wear safety glasses or goggles when working with batteries. Tighten battery caps securely.
Tighten battery terminals securely. Loose terminals can generate sparks and lead to an explosion.