JLG M4069 Service Manual - Manual (Page 45)

SECTION 3 - CHASSIS & SCISSOR ARMS
3121824 – JLG Lift – 3-17
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 pressure
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 tem-
perature 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 Tem-
perature Shutdown due to high engine
oil temperature
1-3 Engine Overspeed
Shutdown due to high engine
speed
1-4
E n g i n e U n d e r-
speed/Overcrank Shutdown due to engine
overcrank 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
E n g i n e S t a r t in g
System fault
Alarm not a shutdown; Indi-
c a t e s p r o b l e m w i t h t h e
engine starting system
2-3 Not Used Not Used
2-4
L o s s o f Vo l ta g e
Sense Shutdown due to loss of volt-
age sensing
Contin-
uous
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