JLG M450 ANSI Service Manual - Manual (Page 107)

SECTION 3 - CHASSIS & TURNTABLE
3121127 – JLG Lift – 3-67
RBS Start RBS shutdown
Call to start Manual 48V DC applied to the input
Automatic 1 Low battery voltage (below
48VDC)
2 Low engine temperature
(below 5°C)
3 Low start battery voltage
(below 12.2V)
Engine start time
delay RBS waits to verify that call to
start is valid (not a transient con-
dition).
Preheat delay - if engine temperature is below
32°F (0°C)
Crank time
(Rest time) RBS will crank and rest until
engine starts, or Overcrank fault
is indicated after 3 failed crank
cycles.
Time delay bypass RBS waits until normal engine
operating conditions are
reached before Low oil pressure
and Underspeed faults are moni-
tored.
Call to start removed Manually Inhibit run input applied
Automati-
cally: 1 Battery voltage above
54VDC and finish charging cur-
rent below 30ADC
2 Engine temperature above
8°C
3 Start battery voltage above
12.9V and finish charging cur-
rent below 30ADC
Engine run time delay This period ensures that no fur-
ther call to start conditions
occur prior to cool-down period.
Cool-down period Alternator output is reduced to a
minimal level to allow the engine
to cool down.