7-15
5. CHARGING CIRCUIT
5. CHARGING CIRCUIT
When the starter is activated and the engine is started, the operator releases the key switch to the
ON position.
Charging current generated by operating alternator flows into the battery through the battery relay
(CR-01).
The current also flows from alternator to each electrical component and controller through the fuse
box.
OPERATING FLOW
OPERATING FLOW
Warning flow
Warning flow
Altermator [CN-74 (2)] I/conn [CN-13 (8)] I/conn [CN-04 (18)] MCU [CN-58B (B33)]
Cluster charge warning lamp ON
Charging flow
Charging flow
Alternator Starter [CN-45 (B+)] Battery relay [CR-01]
Battery (+) terminal Charging
Fusible link [CN-351 (40A)] Master switch [CS-74 (1)
→
(2)] I/conn [CN-01 (16, 17)]
Fuse box [CN-36, 39]
Fusible link [CN-352 (80A)] I/conn [CN-01 (21~26)] Fuse box [CN-38, 39]
CHECK POINT
CHECK POINT
1)
1)
2)
2)
(1)
(1)
(2)
(2)
※
GND : Ground
※
MCU : Machine control unit
Engine
Key switch
Check point
Voltage
OFF
ON
①
- GND (battery)
②
- GND (battery relay)
③
- GND (alternator B+)
④
- GND (alternator 2)
⑤
- GND (MCU)
⑥
- GND (fuse box)
20~28V
Summary of Contents for HL955
Page 557: ...7 6 MEMORANDUM MEMORANDUM ...
