TM 5-2420-230-24-2
B3.9 and B5.9 Series Engines
Alternator (013-001)
Section 13 - Electrical Equipment - Group 13
Page 13-15
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
VDC.
Preparatory (013-001-000)
WARNING
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
cable last.
Disconnect the ground cable from the battery ter-
minal.
Remove the drive belt from the alternator pulley.
Refer to Procedure 008-002.
Remove (013-001-002)
11 mm
Remove and tag all wires, and complete the follow-
ing steps.
13 mm
Remove the alternator link capscrew.
L-1273