JLG 600A, Operation And Safety Manual

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SECTION 3 - MACHINE CONTROLS AND INDICATORS
3121615 – JLG Lift – 3-15
5. Power/Emergency Stop Switch
A two-position red mushroom shaped switch
furnishes power to Platform Controls when
pulled out (on). When pushed in (off ), power is
shut off to the platform functions.
6. Start/Auxiliary Power
When pushed forward, the switch energizes
the starter motor to start the engine.
The Auxiliary Power control switch energizes
the electrically operated hydraulic pump.
(Switch must be held on for duration of auxil-
iary pump use.)
The auxiliary pump functions to provide sufficient oil flow to
operate the basic machine functions should the main pump
or engine fail. The auxiliary pump will operate tower boom
lift, tower telescope, main boom lift, main telescope and
swing.
7. Fuel Select (Dual Fuel Engine Only) (If
Equipped)
Gasoline or liquid propane fuel may be
selected by moving the switch to the appropriate position. It
is unnecessary to purge the fuel system before switching
fuels, so there is no waiting period when switching fuels
while the engine is running.
8. Drive Orientation Override
When the boom is swung over the rear tires or
further in either direction, the Drive Orienta-
tion indicator will illuminate when the drive
function is selected. Push and release the switch, and within
3 seconds move the Drive/Steer control to activate drive or
steer. Before driving, locate the black/white orientation
arrows on both the chassis and the platform controls. Move
the drive controls in a direction matching the directional
arrows.