JLG 110HX ANSI Operator Manual - Manual (Page 39)

SECTION 3 - USER RESPONSIBILITIES AND MACHINE CONTROL
3120635 – JLG Lift – 3-9
NOTE: Lift, Swing, and Telescope control switches are
spring-loaded and will automatically return to neutral
(off) when released.
WHEN OPERATING THE BOOM ENSURE THERE ARE NO PER-
SONNEL AROUND OR UNDER PLATFORM.
5. Lift Control (Main Boom).
The three-position LIFT control switch provides rais-
ing and lowering of the main boom when positioned
to UP or DOWN.
6. Lift Control (Extend-A-Reach, If Equipped).
A three-position EXTEND-A-REACH LIFT control
switch provides raising/lowering of the Extend-A-
Reach when positioned to UP or DOWN.
7. Telescope Control.
The three-position TELESCOPE control switch pro-
vides extension and retraction of the boom, when
positioned to IN or OUT.
8. Swing Control.
The three-position SWING control switch provides
360 degrees continuous turntable rotation when
positioned to RIGHT or LEFT.
WHEN OPERATING ON AUXILIARY POWER, DO NOT OPERATE
MORE THEN ONE FUNCTION AT THE SAME TIME. SIMULTA-
NEOUS OPERATION CAN OVERLOAD THE AUXILIARY PUMP
MOTOR.
9. Auxiliary Power Control.
A toggle type AUXILIARY POWER control switch
energizes the electrically operated auxiliary hydrau-
lic pump, when actuated. The switch must be held in
the ON position for the duration of auxiliary pump
use.
The auxiliary pump functions to provide sufficient oil
flow to operate the basic machine functions should
the main hydraulic pumps or engine fail. The auxil-
iary pump enables the telescope, lift, and swing,
functions to be operated.
It should be noted that the functions will operate at a
slower than normal rate due to the lower amount of
hydraulic flow provided.
10. Glow Plug Switch (Diesel Engine Only).
The push-button switch relays power to the glow
plugs used to warm the air intake on cold start oper-
ations.
11. 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.
12. Circuit Breaker.
The 3 amp circuit breaker return control power to the
High Engine circuit when depressed.
13. Hourmeter.
An hourmeter, installed in the ground control box,
registers the amount of time the machine has been
in use, with the engine running. The hourmeter reg-
isters up to 9,999.9 hours and cannot be reset.
14. Voltmeter.
An voltmeter, installed in the ground control box,
indicates battery condition (i.e. charging or dis-
charging).
15. Oil Pressure Gauge.
An oil pressure gauge, installed in the ground con-
trol box, provides an indication of the engine lubri-
cating oil pressure. Normal operating pressure at
2000 rpm is 40 to 60 psi.
16. Engine Coolant Temperature Gauge (Gas Engines
Only).
An engine coolant temperature gauge installed in
the ground control box, provides a visual indication
of the temperature of the engine coolant.
17. Axle Set Indicator.
The AXLE SET INDICATOR provides a visual indica-
tion that the extendable axles are properly set. It
consists of a green indicator that lights up when the
axles are extended and the retaining pins are prop-
erly installed.
18. Broken Fan Belt Indicator. (Diesel Engine Only).
The BROKEN FAN BELT indicator provides a visual
indication that the engine fan belt is broken and
must be replaced immediately. It consists of a red
indicator that lights up when the fan belt has broken.