Care and maintenance work 6.8 Electrical system Regulations for working on the electrical system Danger of explosion! The gases re- leased by the battery are explosive! Fi- re, sparks, smoking and naked lights are prohibited! Danger of acid burns! Wear protective gloves and glasses! Avoid contact with skin and clot- hing.Danger of short circuit! Do not place any tools on the battery! Pay attention to correct polarity of the connections.Cover electrical/electro- nic parts and connections before cle- aning the engine (e.g. control units, generator, solenoid valves etc.) Do not aim the water/steam jet directly at them.
Run the engine warm afterwards to evaporate moisture residues.Do not check for voltage by tapping against ground.For electrical welding work, the ground terminal of the welding gear must be clamped directly to the part being welded.Three-phase current ge- nerator: Do not interrupt the connec- tions between the battery, generator and governor when the engine is run- ning. 6 Checking the acid level z Unscrew caps. z Note the manufacturer’s specifications on the liquid level. The liquid should normally be 10-15mm above the top edge of the pla- tes or reach up to any available control de- vice. z Only use distilled water to top up the battery. z Screw in caps.
Battery Electronically saved data could be lost when the battery is disconnected.Keep the battery clean and dry. Make sure the battery is fit correctly and firm- ly.Dispose of old batteries in an envi- ronmentally friendly way. Checking the voltage z Check the battery voltage with a conventio- nal voltmeter. The voltage indicates the charging state. It should be between 12 and 14.4 [V] Volt per battery. Checking acid density z Unscrew caps. z Measure the acid density of individual cells with a standard acid testing device. The measured values indicate the charging state 42 Do not touch live parts! Replace defec- tive pilot lamps immediately!