Section 4. machine operation, 1 description, 2 operating characteristics and limitations – JLG 19BD Operator Manual User Manual
Page 35: Capacities, Section - 4 - machine operation, 1 description -1 4.2 operating characteristics and, Limitations -1, Capacities -1

SECTION 4 - MACHINE OPERATION
3121153
– JLG Lift –
4-1
SECTION 4. MACHINE OPERATION
4.1 DESCRIPTION
This machine is a stationary base frame - bolt down version of
JLG’s manually propelled AM-AC model vertical lift. It features a
work platform mounted to an elevating aluminum mast mecha-
nism. The personnel lift’s intended purpose is to provide person-
nel (with their tools and supplies) access to areas above ground
level.
The main power is turned on/off at the ground control station, an
emergency stop switch is located directly next to the main power
key switch.
The primary operator control station is located in the platform.
From this control station, the operator can raise and lower the plat-
form. An emergency stop switch is located here also.
A platform manual descent valve is located inside the base frame
at the rear of the machine. This valve will lower the platform to the
ground in an emergency or if a power failure should occur and the
operator in the platform is unable to do so.
4.2 OPERATING CHARACTERISTICS AND
LIMITATIONS
Capacities
MACHINE BASE FRAME MUST BE PROPERLY SECURED TO IT’S WORK
AREA MOUNTING SURFACE USING A MINIMUM OF 1/2" (19MM) DIAME-
TER GRADE 5 FASTENERS (OR EQUIVALENT) AND WIDE FLATWASHERS
BEFORE ATTEMPTING TO OPERATE LIFT.
NOTE: Refer to Service and Maintenance Manual for bolt down
specifications.
The platform can be raised above the stowed position if:
• The machine is properly and securely mounted to a firm
and level surface.
• Load is within manufacturer’s maximum rated capacity.
• All machine functions are operating properly.