Emergency Controls And Their Locations; Emergency Stop Switch; Ground Control Station; Manual Descent - JLG 4394RT Operation And Safety Manual

SECTION 4 - EMERGENCY PROCEDURES
4.3

EMERGENCY CONTROLS AND THEIR LOCATIONS

Emergency Stop Switch

These large red buttons, one located at the Ground Control
Station and one at the Platform Control Station, will imme-
diately stop the machine when depressed.
CHECK MACHINE DAILY TO MAKE SURE EMERGENCY STOP BUTTON IS IN
PLACE AND THAT GROUND CONTROL INSTRUCTIONS ARE IN PLACE AND LEGI-
BLE.

Ground Control Station

The Ground Control Station is located on the left side of
the machine frame. The controls on this panel provide the
means for overriding the platform controls and for control-
ling the platform lift up and down functions from the
ground. Place the power select switch in the ground posi-
tion and operate the lift switch to lift up or down.
4-2

Manual Descent

The manual descent valve is used, in the event of total
power failure, to lower the platform using gravity. The
manual descent handle is located on the front of the
machine frame. The handle is connected, by a cable, to the
manual descent valve on the lift cylinder. Pulling the man-
ual descent ring opens the valve spool, lowering the plat-
form.
Manual Descent Control - T-Handle Location
– JLG Lift – 3121641