Checking the battery

Required special tool:

• anti-acid lubricant, for example, BOSCH-Polfett;
• steel brush (brush for cleaning poles and terminals);
• suitable voltage measuring device.

Cleaning the battery poles

During regular inspection of the machine, it is necessary to clean the poles and terminals of the battery and lubricate them with anti-acid grease.

The electrolyte poured into commercially available batteries is usually sufficient for the entire service life of the battery.

Warning! Do not use naked flames near the battery: explosive!

Out-of-service voltage test

A simple and reliable service battery test is the idle voltage test.

1. Disconnect the battery. This, among other things, erases the radio code.

2. After about 2 hours, measure the voltage between the poles of the battery. If the instrument shows 12.5 V, the battery is OK. If less, find out and eliminate the causes and, if necessary, replace the battery.

3. In case of malfunctions in the electrical system, use the wiring diagrams to detect the malfunction.

Designation of electric circuits of engines

Engine	Letter designation	wiring diagram
2.0 l/ 62 kW	AAS	See subsection 10.20.7, subsection 10.20.8, subsection 10.20.9, subsection 10.20.10, subsection 10.20.11, subsection 10.20.12, subsection 10.20.13, subsection 10.20.14, subsection 10.20.15, subsection 10.20.16, subsection 10.20.17, subsection 10.20.18, subsection 10.20.19, subsection 10.20.20, subsection 10.20.21, subsection 10.20.22, subsection 10.20.23, subsection 10.20.24, subsection 10.20.25, subsection 10.20.26, subsection 10.20.38, subsection 10.20.39, subsection 10.20.40
2.5L/ 82KW	AAF	See subsection 10.20.15, subsection 10.20.16, subsection 10.20.17, subsection 10.20.18, subsection 10.20.19, subsection 10.20.20, subsection 10.20.21, subsection 10.20.22, subsection 10.20.23, subsection 10.20.24, subsection 10.20.25, subsection 10.20.26, subsection 10.20.38, subsection 10.20.39, subsection 10.20.40
1.9 l / 45 kW	1X	See subsection 10.20.27, subsection 10.20.28, subsection 10.20.29, subsection 10.20.30, subsection 10.20.31, subsection 10.20.32, subsection 10.20.33, subsection 10.20.38, subsection 10.20.39, subsection 10.20.40
1.9 l / 50 kW	AVD	See subsection 10.20.34, subsection 10.20.35, subsection 10.20.38, subsection 10.20.39, subsection 10.20.40
2.4 i/ 57 kw	AAB	See subsection 10.20.36, subsection 10.20.37, subsection 10.20.38, subsection 10.20.39, subsection 10.20.40