JLG 450AJ ANSI Operator Manual - Manual (Page 36)

SECTION 3 - USER RESPONSIBILITIES AND MACHINE CONTROL
3-6 – JLG Lift – 3120748
4. Tower Lift.
The Tower Lift control switch provides raising and
lowering of the lower and mid booms when posi-
tioned up or down.
5. Main Lift Control.
The Main Lift control switch provides raising and
lowering of the main boom when positioned up or
down.
6. Main Telescope Control.
The Main Telescope control switch provides exten-
sion and retraction of the main boom, when posi-
tioned to in or out.
7. Swing Control.
The Swing control switch provides 360 degrees non-
continuous turntable rotation when positioned to the
right or left.
8. Hourmeter.
An hourmeter, installed in the bottom left of the
Ground Control box, registers the amount of time
the machine has been in use, with engine running.
By connecting into the oil pressure circuit of the
engine, only engine run hours are recorded. The
hourmeter registers up to 9,999.9 hours and cannot
be reset.
9. Platform Rotate.
A three position Rotate control switch permits rota-
tion of the platform when positioned to the left or
right.
10. Platform Leveling Override.
A three position Platform Leveling Override control
switch allows the operator to compensate for any
difference in the automatic self leveling system by
positioning the control switch up or down.
11. Articulating Jib Boom. (If Equipped)
The Articulating Jib Boom control switch provides
raising and lowering of the jib when positioned up or
down.
12. Battery Charging Indicator.
When illuminated indicates a problem in the battery
or charging circuit, and service is required.
13. Engine Air Filter Indicator.
When illuminated indicates that the air filter is too
restrictive and needs to be replaced.
14. Engine Oil Pressure Indicator.
When illuminated indicates that engine oil pressure
is below normal and service is required.
15. Engine Coolant Temperature (Ford and Isuzu)
Indicator.
When illuminated indicates that engine coolant tem-
perature is abnormally high and service is required.
16. Engine Oil Temperature Indicator (Deutz).
When illuminated indicates that the temperature of
the engine oil, which also serves as engine coolant,
is abnormally high and service is required.
Figure 3-3. Ground Control Indicator Panel
Updated 9-19-00