Check Charging Circuit Under Load; Alternator Service; Disassembly - Yanmar 6LPA-STP2 Service Manual

ALTERNATOR

Check Charging Circuit Under Load

1. Operate the engine speed at 2000 rpm. Apply a
load to the charging circuit.
2. Check the ammeter reading.
3. If the ammeter reading is below the specified
value, repair the alternator.
Standard current under load:
• 12V 80A to 30A or more
• 12V 100A to 40A or more
Note: When the battery is in the fully charged
state, the indication is below the
standard value.
11-10

ALTERNATOR SERVICE

Disassembly

1. Remove the terminal nuts and insulator
(Figure 11-8, (1)).
Figure 11-8
2. Remove the 3 nuts (Figure 11-9, (1)), bolt
(Figure 11-9, (2)) and plate terminal
(Figure 11-9, (3)) and then remove the rear end
cover (Figure 11-9, (4)).
Figure 11-9
(4)
© 2007 Yanmar Marine International
Alternator Service
Figure 11-8
(1)
(1)
(1)
Figure 11-9
6LPA Service Manual
(1)
0004832
(2)
(3)
0004869