JLG 660SJ Operator Manual - Manual (Page 39)

SECTION 3 - MACHINE CONTROLS AND INDICATORS
3121297 – JLG Lift – 3-5
NOTE: When Power/Emergency Stop switch is in the “On” posi-
tion and engine is not running, an alarm will sound, indi-
cating Ignition is “On”.
WHEN THE MACHINE IS SHUT DOWN THE MASTER/EMERGENCY STOP
SWITCH MUST BE POSITIONED TO THE “OFF” POSITION TO PREVENT
DRAINING THE BATTERY.
NOTE: On machines with diesel engines, when Glow Plug Indi-
cator is lighted (Yellow), wait until light goes out before
cranking engine.
4. Power/Emergency Stop Switch
A two-position red mushroom shaped
switch supplies power to Platform/Ground
Select switch when pulled out (on). When
pushed in (off), power is shut off to the Platform/Ground
Select switch.
5. Engine Start/ Auxiliary Power Switch /Func-
tion Enable
To start the engine, the switch must be held "Up" until
the engine starts.
To use auxiliary power, the switch must be
held “Down” for duration of auxiliary pump
use.
When the engine is running, the switch
must be held "Down" to enable all boom
controls.
WHEN OPERATING ON AUXILIARY POWER, DO NOT OPERATE MORE
THAN ONE FUNCTION AT A TIME. (SIMULTANEOUS OPERATION CAN
OVERLOAD THE AUXILIARY PUMP MOTOR.)