Torin TRA8205B Manual De Propietario página 8

JACKING PRACTICES
a. All mechanical jacks shall be used according to the manufacturer's recommendations.
b. A plan should be developed and communicated to affected personnel before the jacking
operation begins. The plan should include load-handling procedures and communication
methods.
c. Off-center loading of the primary load point should be avoided.
d. When jacking, ensure that the load avoids contact with any obstructions.
e. When jacking, ensure that the primary or auxiliary load point is properly positioned under the
load to avoid tip- or edge-
When jacking one side or end of a load, ensure the opposing side or end is-stabilized with
f.
sufficient blocking.
g. The jack handle, primary and auxiliary load points, and the jack base should be free of slippery
material or fluids.
h. When jacking, a load should be raised or lowered in a limited range. Avoid jacking the side or
end of the load on more than a 3% grade.
When lifting one side of an object with a high center of gravity, personnel should be on the side
i.
of the load that is being lifted.
A load shall not be left unattended while supported by jack. Jack Stands should be used to
j.
support unattended loads.
k. The load weight and center of gravity shall be determined prior to selecting and placing jacks
and blocking.
Before jacking a load, consideration shall be given to fluids or other shifting materials that can
l.
change the location of the center of gravity.
m. The base of the jack should be supported by a hard level surface (such as farm jack jacking
pads, concrete, steel, or wood blocking) capable of supporting the load.
n. The force of the jack's load point should be placed or distributed to prevent damage to the load.
o. A jack handle of the size and length specified by the manufacturer shall be used. Never use an
over length jack handle, extender, or "cheater pipe" over the handle.
p. Ensure there is adequate range of motion for the jack handle to completely engage the
operating linkage of the jack.
COMMUNICATION
a. Communication between personnel involved in the lift operation shall be maintained
continuously during all jack movement. If at any time communication is disrupted, the jack
operator(s) shall stop all movements until communication is restored.
b. Signals to the jack operator should be in accordance with the ASME B30.1. If special signals are
required, they shall be agreed upon by the load-handling personnel prior to jacking operations.
Signals shall be discernible or audible at all times. No action shall be taken unless signals are
clearly under-stood.
c. Jack operators shall obey any stop signal.
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