JLG 80HX_HX+6 Operator Manual - Manual (Page 44)

SECTION 3 - USER RESPONSIBILITIES AND MACHINE CONTROL
3120890 – JLG Lift – 3-9
9. L.P. Gas/Gasoline Select Switch.
An optional two position contact toggle switch sup-
plies electrical power to open the gasoline shut-off
solenoid and closes the LP gas shut-off solenoid
when placed in the “GASOLINE” position. This
switch supplies electrical power to open the LP gas
shut-off solenoid and closes the gasoline shut-off
solenoid when positioned to the LP position.
10. Circuit Breakers.
Four reset push-button circuit breakers return con-
t r o l p o w e r t o t h e f o l l o w i n g f u n c t i o n s w h e n
depressed.
a. 35 amp - Master
b. 10 amp - High Engine
c. 10 amp - Choke
d. 10 amp - Ground Controls
11. Extend-A-Reach.
The extend-a-reach (ARTICULATE) control switch
allows the operator to raise or lower the extend-a-
reach as needed.
12. Hourmeter.
An hourmeter, installed on a bracket mounted
above the ground control box, registers the amount
of time the machine has been in use, with the
engine running. The hourmeter registers up to
9,999.9 hours and cannot be reset.
13. Ammeter.
An ammeter, installed on a bracket mounted above
the ground control box, indicates battery condition
(i.e. charging or discharging).
14. Oil Pressure Gauge.
An oil pressure gauge, installed on the bracket
mounted above the ground control box, provides
an indication of the engine lubricating oil pressure.
Normal operating pressure at 2000 rpm is 40 to 60
psi.
15. Engine Coolant Temperature Gauge.
An engine coolant temperature gauge installed on a
bracket above the ground control box, provides a
visual indication of the temperature of the engine
coolant.
16. Axle Set Indicator (If equipped).
The AXLE SET INDICATOR provides a visual indica-
tion that the extendable axles are properly set.
Some machines built prior to 1994 will have a red
indicator that lights up until the axles are extended
and the retaining pins are installed. Some machines
built prior to 1994 and all machines built after 1994
have a green indicator that lights up when the axles
are extended and the retaining pins are properly
installed.
17. Choke (If equipped).
This push-button switch, when depressed, supplies
power to the choke solenoid to enrich the fuel mix-
ture for cold weather starting.
18. Manual Descent.
The manual descent valves should be used, in the
event of a total power failure, to lower the work plat-
form in the event of an emergency. The valves per-
mit the use of gravity to retract and lower the boom.
Refer to Section 6 for a complete description of the
manual descent systems, their application, and
their operation.
19. Boom Lift Control Knobs (Hydraulic Controls Only).
The boom LIFT control knobs provide raising and
lowering of the boom when pushed in.
20. Telescope Control Knobs (Hydraulic Controls Only).
The telescope (TELE) control knobs provide exten-
sion and retraction of the boom when pushed in.
21. Swing Control Knobs (Hydraulic Controls Only).
The SWING control knobs provide 360 degree con-
tinuous turntable rotation. To activate swing, push in
the appropriate knob.
22. Start Button.
The START button is a momentary contact, push
button type switch that supplies electrical power to
the starter solenoid, when the key switch and igni-
tion switch are in the ON position and the start but-
ton is depressed.