Warning. When servicing the battery, you must follow the safety regulations.
To get the job done you will need:
- a special tool for cleaning battery terminals and power wire terminals;
- hydrometer or medical syringe.
Note. You can also clean the terminals with fine-grained sandpaper.
Work sequence
1. We prepare the car for repair work.
2. We wipe the battery case with a cloth moistened with a 10% solution of baking soda or ammonia.
3. We check the reliability of fastening the battery to the car.
4. Check the condition of the battery terminals and power wire terminals. If the terminals are covered with a layer of oxides, remove them from the battery terminals.
5. Using the tool, we clean the battery terminals until a shine appears.
6. Remove the protective cover from the device and carefully clean the inner surface of the terminals with a metal brush.
7. We check the electrolyte level in the battery, for this, marks are applied on the battery case «MIN» and «MAX».
On a battery that has been in operation for several years, the electrolyte level is poorly visible through the case wall. In this case, you can check the electrolyte level through the battery filler holes:
A) remove the top battery mount;
b) remove six battery plugs (it is convenient to do it with a coin) and check the electrolyte level in them, which should completely cover the battery separators and slightly not reach the lower edges of the filler wells.
8. If the electrolyte level is below normal, then with a hydrometer (or medical syringe) add distilled water to the batteries.
9. We check the degree of charge of the battery, if necessary, recharge the battery.
Note. After topping up with distilled water, until the solution in the accumulator is completely mixed, the hydrometer readings will be incorrect.
10. We wrap the plugs in place and install the top battery mount bar.
11. We put on the terminals of the power wires on the terminals of the battery. Using a 10 mm spanner wrench, tighten the terminal bolts and apply a thin protective layer of grease to the terminals and battery terminals.