Pic. 7.48. Disconnecting the wire from the battery terminal
Disconnect the wires from the battery terminals (first disconnect the wire from the negative terminal) (pic. 7.48).
Remove the battery from the vehicle.
Attention! Take special care if the battery case has cracks or other sources of electrolyte leakage, avoid contact of the electrolyte with the skin. Always wear suitable rubber gloves when removing the battery (do not use household gloves).
Check the condition of the battery tray for corrosion damage caused by acid leakage (electrolyte). In the presence of corrosion, it is necessary to wash the damaged areas with a solution of clean warm water and soda. Scrub damaged areas with a stiff wire brush and wipe with a cloth dampened with baking soda solution.
Clean the top of the battery with the solution.
Check the battery case and cover for cracks. If there are cracks, replace the battery.
Clean the battery terminals with an appropriate special cleaner.
Clean the inside of the battery cable connectors with a suitable special tool. Replace damaged or worn connecting wires and damaged contact latches.
Install the battery in the vehicle.
Connect the leads of the connecting wires to the battery terminals and check that the ends of the contact retainers are flush with the ends of the battery terminals.
Securely tighten the nut of the connecting wire contact retainer.
After tightening, apply some mineral grease to all joints.
Attention! When the battery is being charged, flammable and explosive gas is released under the battery cover. Do not smoke or use naked flames near a battery that is being charged or has recently been charged. Do not disconnect live circuits near the terminals of a battery that is being charged. A spark may appear between disconnected wires (in a chain break) and cause an explosion. Keep flammable items away from open batteries.