6.8 Electrical system Care and maintenance work of the battery (see T 6-7-1). The acid tempe- rature when measuring should be 20 °C if possible. z Check the acid level before recharging. z Screw in caps. z Connect the plus pole first and then the mi- nus pole. Otherwise there is a danger of short-circuiting. Make sure the terminals have a good contact. Tighten the clamping screws by hand. z Grease the assembled terminals with an acid-free, acid-resistant grease. Removing the battery z Always disconnect the minus pole first when removing the battery. Otherwise there is a danger of short-circuiting. z Remove the fastenings and take out the bat- tery. 6 Charging the battery z Unscrew caps.
z Charge the battery with a conventional bat- tery charger. Observe the manufacturer’s in- structions. z Screw in caps. Installing the battery z Insert new or charged battery and attach the fastenings. z Clean the terminals and battery poles with fine grained sandpaper. 43 Acid density [kg/ l] Charging state Action Normal Tropics 1,28 1,23 good — 1,20 1,12 half charge 1,12 1,08 empty charge im- mediately T 6-7-1 acid density