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Preliminary Pages
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Crush Hazard - Take care when installing or removing a specimen, assembly,
structure, or load string component.
Installation or removal of a specimen, assembly, structure, or load string component
involves working inside the hazard area between the grips or fixtures. When
working in this area, ensure that other personnel cannot operate any of the system
controls. Keep clear of the jaws of a grip or fixture at all times. Keep clear of the
hazard area between the grips or fixtures during actuator or crosshead movement.
Ensure that all actuator or crosshead movements necessary for installation or
removal are slow and, where possible, at a low force setting.
Hazard - Do not place a testing system off-line from computer control without
first ensuring that no actuator or crosshead movement will occur upon
transfer to manual control.
The actuator or crosshead will immediately respond to manual control settings
when the system is placed off-line from computer control. Before transferring to
manual control, make sure that the control settings are such that unexpected
actuator or crosshead movement cannot occur.
Robotic Motion Hazard - Keep clear of the operating envelope of a robotic
device unless the device is de-activated.
The robot in an automated testing system presents a hazard because its movements
are hard to predict. The robot can go instantly from a waiting state to high speed
operation in several axes of motion. During system operation, keep away from the
operating envelope of the robot. De-activate the robot before entering the envelope
for any purpose, such as reloading the specimen magazine.
Hazard - Set the appropriate limits before performing loop tuning or running
waveforms or tests.
Operational limits are included within your testing system to suspend motion or
shut off the system when upper and/or lower bounds of actuator or crosshead travel,
or force or strain, are reached during testing. Correct setting of operational limits by
the operator, prior to testing, will reduce the risk of damage to test article and
system and associated hazard to the operator.
Electrical Hazard - Disconnect the electrical power supply before removing
the covers to electrical equipment.
Disconnect equipment from the electrical power supply before removing any
electrical safety covers or replacing fuses. Do not reconnect the power source while
the covers are removed. Refit covers as soon as possible.