Fiat Kobelco EX355 Tier2, Техническое руководство

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T5-6-10 EX355
ELECTRICAL SYSTEM INSPECTION
Engine
Key
Check Point Standard
Switch
Power Source Circuit
Stopped OFF Between (2) and (1): One Battery 10 to 12.5 V
Stopped OFF Between (3) and (2): One Battery 10 to 12.5 V
Stopped OFF Between (3) and (1): Two Batteries 20 to 25 V
Stopped OFF Between (4) and Ground: Power Source 20 to 25 V
Stopped OFF Between (5) and Ground: Fusible Link 20 to 25 V
Stopped OFF Between (1) and Ground: Backup Current (*) 6 mA
Preheat Circuit
Stopped ON Between (6) and Ground: Key Switch 20 to 25 V
Stopped ON Between (7) and Ground: Glow plugs 20 to 25 V
Stopped ON Between (20) and Ground: QOS Controller power supply 20 to 25 V
Starting Circuit
Started START Between (8) and Ground: Key Switch 20 to 25 V
Started START Between (9) and Ground: Battery Relay (Coil) 20 to 25 V
Started START Between (10) and Ground: Battery Relay (Switch) 20 to 25 V
Started START Between (11) and Ground: Starter (B) 20 to 25 V
Started START Between (12) and Ground: Starter (C) 20 to 25 V
Started START Between (13) and Ground: Starter Relay (S) 20 to 25 V
Charging Circuit
Fast Speed ON Between (14) and Ground: Alternator Generating Voltage (B) 26 to 30 V
Fast Speed ON Between (10) and Ground: Alternator Generating Voltage 26 to 30 V
Fast Speed ON Between (15) and Ground: Alternator Generating Voltage 26 to 30 V
Fast Speed ON Between (16) and Ground: Alternator Generating Voltage (L) 13 to 30 V
Fast Speed ON Between (17) and Ground: Monitor 13 to 30 V
Surge Voltage
Prevention Circuit
Slow Idling ON Between (14) and Ground: Alternator (B) 26 to 30 V
Slow Idling ON Between (16) and Ground: Alternator (L) 13 to 30 V
Slow Idling ON Between (18) and Ground: Anti Load Dump Relay 26 to 30 V
Slow Idling ON Between (10) and Ground: Battery Relay 26 to 30 V
Accessory Circuit
Stopped ON Between (19) and Ground: Air Conditioning 20 to 25 V
Stopped ON Between (21) and Ground: Horn 20 to 25 V
Stopped ON Between (22) and Ground: Lighter 20 to 25 V
Stopped ON Between (23) and Ground: Radio 20 to 25 V
(*) After disconnection the minus cable to the battery,
start measuring.
VOLTAGE AND CURRENT CHECK
Turn switch ON so that the specified voltage (current)
is applied to the point to be measured. Then start
measuring either voltage or current. Judge if the
specified voltage is applied. 24 Voltage Circuit
Start checking in order up to the point where voltage
is measured from either power source or actuator
side. Thereby, the faulty location in the circuit will be
found.
Black Probe (Minus) of Tester : To ground (vehicle
frame).
Red Probe (Plus) of Tester : To location to be
measured.