NEC LL009F User Manual page 6

Maintenance precautions
Note the following safety precautions when performing maintenance tasks. Failure to
follow these precautions may result in serious injury.
• Remove any electrically conductive objects being worn, such as a wristwatch or
metal jewelry to help prevent electric shock.
• Be extra cautious when working near power connectors or power supply units to
help prevent electric shock.
• Turn the power off before removing the field replacement unit (FRU) or other
components.
• Ground all test devices and power supply tools.
• Read the "Cautions on Handling" before moving the Autoloader.
• To prevent fires and accidents, keep the immediate area around the unit clear.
Cautions on Lifting
Back pain can be caused by lifting any object, whether it is light or heavy. The risk of
back pain can be reduced by following these guidelines.
• Do not twist your torso when lifting or lowering an object. Such twisting can cause
severe back pain when lifting and/or carrying an object. Instead, divide the lifting and
carrying into two steps, without twisting: first lift, and then use your legs to change
direction for carrying.
• Think before lifting: Look at the object and consider how to lift it and where to set it.
• Use a suitable lifting method. Consider the object's weight, size, position, how often
it will be lifted, and the direction of lifting. Avoid strenuous postures, and determine
whether any kind of support device might be necessary.
• Spread your feet to shoulder width, and put one foot a bit behind the other. Keep
your back straight. Leaning forward places pressure on the back, even when lifting
light objects.
• Always grasp the unit with both hands if possible.
• Lift the unit to elbow height, and hold it close to your chest while carrying it. Holding
it away from chest will place pressure on your back.
• Lift using your legs, not your back. Your strongest muscles are in your legs.
Therefore, the safest way to lift even heavy objects is with your legs, starting from a
squatting position.
• When doing a lot of lifting, reduce the amount of pressure being applied to the same
set of muscles. This will give those muscles more time to recover.
Safety precautions for shoulders, elbows, wrists, and hands
Follow these guidelines to minimize the risk of injury to your shoulders, elbows, wrists,
and hands.
• Try to keep your motions within the safest range, between shoulder height and
elbow height. Carrying or lifting objects in this range will minimize risk of injury.
• The amount of strength required for lifting can be reduced by keeping elbows bent
and the lifted object close to your chest. Lifting this way reduces the load and the
pressure on the shoulders.
• Keep your wrists straight. Do not bend and/or twist your wrists for a long time.
• Do not use a "pinch grip" (gripping an object between the thumb and index finger)
when lifting or carrying large, heavy objects. Lifting in this way requires a lot of
gripping strength. After lifting objects with one hand for a while, use the other hand
so that the first hand can rest.
• Note with caution that the metal frame has sharp corners.
CAUTION
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