Rbs Start; Rbs Shutdown - JLG E450A Service And Maintenance Manual

SECTION 3 - CHASSIS & TURNTABLE

RBS Start

Call to start Manual
Automatic
Engine start time delay
Preheat delay
Crank time
(Rest time)
Time delay bypass
3-70
48V DC applied to the input
1 Low battery voltage (below 48VDC)
2 Low engine temperature (below 5°C)
3 Low start battery voltage (below
12.2V)
RBS waits to verify that call to start is
valid (not a transient condition).
- if engine temperature is below 32°F
(0°C)
RBS will crank and rest until engine
starts, or Overcrank fault is indicated
after 3 failed crank cycles.
RBS waits until normal engine operat-
ing conditions are reached before Low
oil pressure and Underspeed faults are
monitored.

RBS shutdown

Call to start removed Manually
Automati-
cally:
Engine run time delay
Cool-down period
Inhibit run input applied
1 Battery voltage above 54VDC and
finish charging current below 30ADC
2 Engine temperature above 8°C
3 Start battery voltage above 12.9V
and finish charging current below
30ADC
This period ensures that no further call
to start conditions occur prior to cool-
down period.
Alternator output is reduced to a mini-
mal level to allow the engine to cool
down.
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