JLG 120-SXJ Operator Manual - Manual (Page 34)

SECTION 3 - USER RESPONSIBILITIES AND MACHINE CONTROL
3-4 – JLG Lift – 3121809
7. Hourmeter.
An hourmeter, installed in the right side of the
Ground Control box, registers the amount of time
the machine has been in use, with engine running.
By connecting into the alternator charging circuit of
the engine, only engine run hours are recorded. The
hourmeter registers up to 9,999.9 hours and cannot
be reset.
8. Platform Rotate.
A three position Rotate control switch permits rota-
tion of the platform when positioned to Left or Right.
9. Platform Leveling Override.
A three position Level control switch allows the oper-
ator to compensate for any difference in the auto-
matic self leveling system by positioning the control
switch to UP or DOWN.
10. Articulating Jib Boom. (If Equipped)
The Articulating Jib Boom control switch provides
raising and lowering of the jib when positioned to UP
or DOWN.
11. Load Management Test Switch
The Load Management Test Switch is used to per-
form a check of the Load Management System. The
switch is spring loaded to the neutral position and
has two operating positions; P (for Potentiometer)
and M (for Mechanical).
12. Load Management Reset Switch
The Load Management Reset Switch is used in con-
junction with the Load Management Test Switch for
checking the Load Management System. The switch
is used to reset the system during the checking pro-
cedure.
Figure 3-2. Ground Control Indicator Panel