JLG 1500SJ Operator Manual - Manual (Page 127)

SECTION 5 - LCD DISPLAY PANEL - GENERATION 1 & 2
3121261 – JLG Lift – 5-31
Operational Fault - Over/Under Moment Fault (DTC 0017/
0018)
The Over/Under Moment Fault Screen appears if the JLG Control
System senses that the machine is in an over/under moment con-
dition. This screen may also display without a Fault Code when
the Boom Control System indicator light is lit. This screen will
remain until the operator operates one of the controls high-
lighted on the screen to correct the condition. In the lower left
corner of the screen, the Super Creep (snail) icon will be displayed
to show that all functions will operate in Super Creep mode until
the condition is corrected. In the lower right hand corner, a check
mark in a green circle indicates no serviceable faults are present.
If a serviceable fault is present, the numeric fault code with a
safety alert symbol is displayed. Multiple faults will display in suc-
cession. Check the Service Manual for the specific fault code.