combustible dust, fibers, or paper and remove any for-
eign materials. Contact your local Yale dealer for forklift
modifications that may be appropriate in environments
with fire hazards.
Operate the lift truck only in areas that have been
approved for lift truck operation.
• OSHA regulations prohibit the use of lift trucks in
areas containing hazardous concentrations of certain
flammable gases or vapors.
• OSHA regulations require operating areas to be clas-
sified as hazardous or nonhazardous, and that the lift
trucks used in designated locations be of the mini-
mum type specified (see Guide For Users Of Industrial
Trucks, Appendix C and Table N-1).
Only the designated types of approved lift trucks may be
used in areas classified as hazardous by the authority
having jurisdiction. Areas classified as hazardous must
be identified by signs to show the type of approved lift
truck required for operation in the area. Modifications or
poor maintenance can result in the lift truck being
unsuitable for operation in areas classified as hazard-
ous.
The fork lift truck is designed to pickup, move, and tier mate-
rials. The basic lift truck has a lift mechanism and forks on
the front to engage the load. The lift mechanism lifts the load
so that it can be moved and stacked.
In order to understand how the fork lift truck can pick up a
load, you must first know some basic things about the lift
truck.
The lift truck is based on the principle of two weights balanced
on opposite sides of a pivot (fulcrum). This is the same prin-
ciple used for a see-saw. In order for this principle to work for
a lift truck, the load on the forks must be balanced by the
weight of the lift truck. The location of the center of gravity of
both the truck and the load is also a factor.
This basic principle is used for picking up a load. The ability
of the lift truck to handle a load is discussed in terms of center
of gravity and both forward and side stability.
Operating Procedures
60
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