B3.9 and B5.9 Series Engines
Section 13 - Electrical Equipment - Group 13
With all accessories turned off, connect a multimeter across
the battery. Operate engine at moderate speed.
If voltage is 15.5 VDC or more on a 12-VDC system, remove
the alternator for repair. The limit for 24-VDC systems is 28
Batteries can emit explosive gases. To avoid personal
injury, always ventilate the compartment before servic-
ing the batteries. To avoid arcing, remove the negative
(-) battery cable first and attach the negative (-) battery
Disconnect the ground cable from the battery ter-
Refer to Procedure 008-002.
Remove and tag all wires, and complete the follow-