Contents: Examination ↧ Replacement ↧
Warning: The battery produces hydrogen gas, so keep open flames and lit cigarettes away from the battery. When working with the battery, you must wear protective glasses. Wash away any spilled electrolyte immediately with plenty of water.
Examination
1. Before measuring the battery voltage, it is necessary to remove its static charge. Turn on the high beams for 10 seconds, then turn off the headlights and leave the car for two minutes. Remove the battery (see p. 4 - 10).
2. Check the battery charge level. The charge level can be determined by the color of the indicator located on top of the battery. If the indicator is transparent, the battery needs charging (the procedure is described in chapter 1). After this, check the voltage with a voltmeter (see illustration). Connect the negative electrode of the digital voltmeter to the negative battery terminal and the positive electrode to the positive battery terminal. The voltage should be at least 12.4V. If the voltage obtained is less than the specified one, fully charge the battery before performing the load test.
3.2. To check the open circuit voltage of the battery, it is necessary to connect a voltmeter. When the battery is fully charged, the voltage should be at least 12.4V (this value depends on the outside temperature)
3. Perform a load test. A quality check can only be performed using a load fork, which can be purchased at most automotive stores. This test determines the battery's ability to maintain the required voltage when the starter and other energy sources are turned on. Connect the load plug to the battery terminals (see illustration). Perform the test according to the fork's operating instructions. This fork uses a carbon element to increase the load on the battery. Apply a load to the battery and make sure that its voltage does not drop below 9.6V within 15 seconds. A poor battery condition can be easily detected using a load fork.
3.3 Connect the load plug to the battery terminals and perform the test according to the plug's instructions for use
Note: When testing in cold conditions, a small allowance is made for the lower voltage limit. This is usually reflected in tables included in the instructions supplied with the load fork. The minimum voltage limit specified for an ambient temperature of 0°C is 9.1V.
Replacement
4. Disconnect the negative cable from the battery.
5. Disconnect the positive battery cable.
6. If the design provides for the presence of engine block heating, then it is necessary to disconnect the heater wire holder located on the battery.
7. Unscrew the bolts of the support beam from the battery casing and disconnect the ventilation tube (see illustration).
3.7. Before removing the battery, unscrew the bolts (A) and remove the support bar, and also disconnect the ventilation tube (B), remove the battery cover (C), then unscrew the bolt and remove the holder (D)
8. To remove, lift the battery cover straight up.
9. Unscrew the nut and remove the battery holder.
10.To remove, lift the battery vertically upwards.
11. If there is corrosion deposits on the pan, it is necessary to remove it and clean the corroded areas with a solution of baking soda to prevent further spread of rust (see illustration). Paint over the repaired areas with corrosion-resistant paint.
3.11 Inspect the battery tray, holder brackets and associated fasteners for signs of corrosion or other damage. If necessary, unscrew the bolts (which the shelf is attached to the inner panel of the wing) and remove the shelf
12. Clean the battery case and cables and service as described in Chapter 1.
13. When replacing the battery, make sure that the parameters of the new battery meet the technical requirements. Before installation, make sure the new battery is fully charged.
14. Installation is carried out in the reverse order of removal. First you need to connect the positive wire, and then the negative one.
15. After connecting the wires, apply grease or petroleum jelly to the terminals to prevent corrosion.