JLG M4069 ANSI Service Manual - Manual (Page 45)

SECTION 3 - CHASSIS & SCISSOR ARMS
3121122 – JLG Lift – 3-17
To Connect the JLG Control System Analyzer
to the Generator
The JLG Control System Analyzer can be used to monitor
generator settings and conditions. Connect the analyzer
as follows:
Connect the four pin end of the cable supplied with the
analyzer, to the connector behind the ground control
module located on the right side of the machine next to
the ground control station and connect the remaining end
of the cable to the analyzer.
1. The ground control module contains the settings for
the generator.
NOTE: The cable has a four pin connector at each end of
the cable; the cable cannot be connected back-
wards.
2. Power up the Analyzer by pulling out the ground sta-
tion EMS and positioning the Generator Enable
switch on the platform control box to the "on" posi-
tion. Refer to Figure 3-10., Generator System Ana-
lyzer Flow Chart.
Alarms and Fault Flash Codes
In the event of an RBS alarm, a flash code will be issued
and an alarm indicated on the analyzer.
NOTE: Alarms must be reset once the fault has been cor-
rected.
• Low Oil Pressure
Enabled once TDBP (time delay bypass) period has
elapsed after engine startup. If the low engine oil pres-
sure switch closes, the engine will stop immediately
and a low oil pressure alarm will be indicated.
• High Engine Temperature
If the engine oil temperature exceeds the high engine
temperature setting, the engine will stop immediately
and a low oil pressure alarm will be indicated.
• Overspeed
If the engine speed exceeds the overspeed limit, the
engine will stop immediately and an overspeed alarm
will be indicated.
ANALYZER
CONNECTION
GROUND
CONTROL
Table 3-8. Generator System Flash Codes
Code Alarm Description
1-1
Low Oil Pressure Shutdown due to low engine oil
pressure
1-2
High Engine
Temperature
Shutdown due to high engine oil
temperature
1-3
Engine Overspeed Shutdown due to high engine
speed
1-4
Engine Underspeed/
Overcrank
Shutdown due to engine over-
crank or underspeed
1-5
No Speed Signal Shutdown due to loss of speed
signal
2-1
Overvoltage Shutdown due to high output
voltage
2-2
Engine Starting
System fault
Alarm not a shutdown; Indicates
problem with the engine starting
system
2-3 Not Used Not Used
2-4
Loss of Voltage
Sense
Shutdown due to loss of voltage
sensing
Continu-
ous
Unit Disabled No Faults. RBS enabled and can
respond to any CTS
Off
Unit Disabled RBS off or disabled; Will not
respond to any CTS