JLG X23J - X700AJ Service Manual User Manual
Page 517
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SECTION 6 - JLG CONTROL SYSTEM
6-28
– JLG Lift –
3121448
ST12 CLOSED
ON
The thrust meter of outriggers 1 and 2 closes the contact – the outriggers are at end
run and the max pressure valve is opened
OFF
The thrust meter contact of outriggers 1 and 2 is opened – the outriggers are open,
partially open or already closed
ST34 CLOSED
ON
The thrust meter of outriggers 3 and 4 closes the contact – the outriggers are at end
run and the max pressure valve is opened
OFF
The thrust meter contact of outriggers 3 and 4 is opened – the outriggers are open,
partially open or already closed
TEMP ALRM A Option
reserved for some
markets
ON
The temperature external probe reached the maximum value – “A” line of the
temperature probe is closed
OFF
The temperature external probe hasn’t reached the maximum value – “A” line of the
temperature probe is open
TEMP ALRM B Option
reserved for some
markets
ON
The temperature external probe reached the maximum value – “B” line of the
temperature probe is closed
OFF
The temperature external probe hasn’t reached the maximum value – “B” line of the
temperature probe is open
FREE A
Do not consider this signal
FREE B
Do not consider this signal
GENERATOR
ON
The engine is ON – the control module receives the signal from the alternator
OFF
The engine is OFF – the control module does not receive the signal from the
alternator
EMRG. COMM
ON
The key button for aerial part manual operation from the ground is activated
(emergency condition)
OFF
The key button for aerial part manual operation is released (normal working
condition)
MICROROPES X23J -
X700AJ Only
ON
The cables of the extension are OK – the control switch of the cables on extension
is released and the line is closed (normal working condition)
OFF
A cable on the extension is out of order – the control switch of the cables on
extension is pressed and the line is open (emergency condition)
START M.TE
ON
The ground button for engine start is pressed
OFF
The ground button for engine start is released
MOTOR TEMP. X23J -
X700AJ Diesel Only
ON
The engine reached the max functioning temperature (emergency condition – the
engine remains at min)
OFF
The engine maintains the correct functioning temperature (normal working
condition)
MOTOR PRES. X23J -
X700AJ Diesel Only
ON
The engine oil pressure is inadequate (emergency condition – engine turns off)
OFF
The engine oil pressure is OK
START M.EL
ON
The ground button for electric motor start is pressed
OFF
The ground button for electric motor start is released
X14J - X19J - X23J - X390AJ - X550AJ - X700AJ