Snorkel S2545 - Manual (Page 49)

Appendix A. Glossary
aerial platform—a mobile device that has an
adjustable position platform, supported from
ground level by a structure.
authorized personnel—personnel approved as
assigned to perform specific duties at a specific
location.
base—the relevant contact points of the aerial
platform that form the stability support (e.g.
wheels, casters, outriggers, stabilizers).
battery tray—a swing-out compartment that
holds the batteries and battery charger.
chassis—the integral part of the aerial platform
that provides mobility and support for the scissors
structure.
fall restraint—a system that is used while
working on a boom lift within the boundaries of
platform guardrails to provide restraint from being
projected upward from the platform. This system
includes a harness or belt, lanyard, and a lanyard
anchor. Although federal OSHA, ANSI, and
Snorkel do not require the use of fall restraint on
scissors lift aerial platforms, local, state, or
employer rules may require their use.
free-wheeling valve—a needle valve that when
adjusted open allows hydraulic fluid to flow
through the wheel drive motors. This allows the
aerial platform to be pushed or towed without
damage to the drive motors.
gradeability—the maximum slope that the aerial
platform is capable of travel.
ground fault circuit interrupter—a fast-acting
circuit breaker that opens to stop electrical circuit
flow if it senses a very small current leakage to
ground. Also called GFCI. The GFCI is used to
protect personnel against a potential shock
hazard from defective electrical tools or wiring.
guardrail system—a vertical barrier around the
platform to prevent personnel from falling.
hazardous location—any location that contains,
or has the potential to contain, an explosive or
flammable atmosphere as defined by ANSI/NFPA
505.
hydraulic tray—a swing-out compartment that
holds the electrical panel for the lower controls,
the hydraulic directional control valve, the
free-wheeling valve, and the hydraulic fluid
reservoir, pump and filter.
local concentrated pressure—floor loading
pressure of an aerial platform based on the
maximum load exerted on one tire and the
calculated footprint area of the tire. This value is
of concern when the floor surface, on which the
machine is being used, needs to be protected
from indentations or breakage due to high
pressure being exerted on a relatively small area.
lower controls—the controls located at ground
level for operating some or all of the functions of
the aerial platform.
maximum travel height—the maximum platform
height or the most adverse configuration(s) with
respect to stability in which travel is permitted by
the manufacturer.
Minimum Safe Approach Distance—the
minimum safe distance that electrical conductors
may be approached when using the aerial
platform. Also called M.S.A.D.
operation—the performance of any aerial
platform functions within the scope of its
specifications and in accordance with the
manufacturer’s instruction, the users work rules,
and all applicable governmental regulations.
overall uniform pressure—floor loading
pressure of an aerial platform based on the gross
vehicle weight and the rated work load. This
value may be of concern when the aerial platform
is used on a beam supported floor or surface.
The maximum allowable floor loading pressure is
determined its architect or engineer.
personal fall arrest system—a fall protection
system that is used while working on an
unprotected edge (such as a roof top with no
guardrail). This system includes a harness,
lanyard or other connecting device, a fall arrestor,
an energy absorber or decelerator, an anchorage
connector, and a secure anchorage such as a
building beam, girders or columns. An aerial
platform is not a fall arrest anchorage.
platform—the portion of an aerial platform
intended to be occupied by personnel with their
tools and materials.
platform height—the vertical distance measured
from the floor of the platform to the surface upon
which the chassis is being supported.
pothole protection—a mechanical system
intended to reduce the likelihood of aerial
platform tip-over.
qualified person—a person, who by reason of
knowledge, experience, or training is familiar with
the operation to be performed and the hazards
involved.
S2545 – 0410002