Danger Notices in This Manual
A danger notice appears in the following procedures:
• "710 Local Work Station Cable Signal Quality Check" on page
7-3.
• "714 Local Work Station Cable Ohmmeter Test" on page 7-15.
Warning Notices
in
This Manual
A warning notice appears in the following procedure:
"FCC
notice" on page
ii.
Rules for Safety
If
you know the safety rules for working with electrical and mechanical equipment, and
if
you observe the
rules, you can work safely with IBM equipment.
Do
not fear electricity, but respect it.
While you are maintaining IBM equipment, observe every safety precaution possible and the following safety
rules.
Work Environment
•
Do
not work alone in hazardous conditions
or
near equipment
that
has dangerous voltage.
• Always look for possible hazards in your work environment. Examples
of
hazards are: moist floors,
nongrounded extension cables, power surges, and missing grounds.
•
Do
not perform any action that makes the product unsafe
or
that causes hazards for customer personnel.
• Before you start the equipment, ensure that other service representatives and customer personnel are not
in a hazardous position.
• Care should be taken to make certain that hair and clothing do not:
- Get caught in moving parts.
- Contact live parts that may involve the risk
of
electric shock.
• Lift the equipment or parts by standing
or
pushing up with your stronger leg muscles; this action removes
the strain from the muscles in your back.
Do
not lift equipment
or
parts that are too heavy for you.
•
Put
removed machine covers in a safe place while you are servicing the machine. Reinstall the covers
before returning the machine to the customer.
• Always keep your tools away from walk areas so that people cannot trip over them.
• Observe good housekeeping practices in the area
of
the machines while you are performing maintenance
and after completing it.
• After maintenance, reinstall all safety devices, such as guards, shields, labels, and grounding devices.
Exchange safety devices that are worn
or
defective. Remember, the safety devices protect you from a
hazard.
You destroy their purpose
if
you do not reinstall them when you have completed the service call.
viii
5363
Maintenance Information
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