8.2 Understand the maintenance process
•
Robot
maintenance and the frequency of that maintenance depend on the environment in
which that robot is working.
•
Industrial
use robots can be utilized in may locations.
–
From
clean rooms for electronics, to paint booths and harsh welding applications.
8.2.1 Recognize
the steps involved that are necessary for robotics
maintenance and reliability
maintenance and reliability
•
Installation,
Maintenance and Programming Good Practices.
–
Installed
in accordance with manufacturer’s guidelines and applicable codes.
–
Verify
compatibility with environmental conditions.
–
Power
to robot conforms to manufacturer’s specifications.
–
Robot
is secured to prevent vibration movement and tip over.
–
Installation
is such that no additional hazards are created such as pinch points with fixed
objects and robot components or energized conductor contact with robot
components.
•
Signs
and markings indicating the zones of movement of the robot are displayed
prominently on the robot itself and, if possible, on floors and walls.
•
Stops
are placed on the robot system's axes to limit its motions under rated load and
maximum speed conditions.
•
A
lock-out procedure is established and enforced for preventive maintenance or
repair operations.
•
The
robot manufacturer's preventive maintenance schedule is followed rigorously.
•
A
periodic check of all safety-critical equipment and connections is established.
•
Stored
energy devices, such as springs and accumulators, are neutralized before robot
servicing.
•
Only
programmers have access to the work envelope and full control of the robot when
it is in the teach mode.
•
All
robot motion initiated from a teach pendant used by a programmer located within
the robot work envelope is subject to the current ANSI slow speed
recommendation of 10 in/sec (250 mm/sec).
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