IBM 3270 Maintenance Manual

- - - --- ----- --_ .- Personal Computer Maintenance Information SY27 -2567 -2 ...

--- IBM 3270 - - --- - -- --- ----- -~-,- Personal Computer Maintenance Infortnation SY27-2567-2 ...

Statement Warning: This equipment generates, uses, and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J o ...

personnel, a listing of the safety notices that appear in this manual, and a safety inspection checklist for the 3270 Personal Computer. Service Personnel Safety Practices These safety practices include suggested safety guidelines for service personnel working on machines, first-aid if an a ...

conditions or near equipment that has dangerous voltages. Always inform your supervisor if the conditions or voltages are a possible problem. • Remove all power ac and dc when removing or assembling major components, when working in the immediate area of power supplies, when performing mechanical in ...

pushing up with your leg muscles; this action removes the strain from the muscles in your back. Do not lift any equipment or parts that are too heavy for you. The maximum load to be lifted is that which, in your opinion and management's, does not jeopardize your own health or well-being, or that of other employe ...

cable before you work on a machine. When you switch off power at the wall box, lock the switch in the off position or attach a DO NOT OPERATE tag (Z229-0237) to the switch. Note: A non-IBM attachment to an IBM machine may be powered from another source and may be controlled by a different s ...

(Remember: worn or cracked insulation is unsafe.) Use only one hand while you are working on live equipment. Keep the other hand in your pocket or behind your back. (Remember: there must be a complete circuit for an electrical shock to occur. This precaution prevents your body from completing the circuit.) When you ...

you are: Lubricating a part Checking for play Doing other similar work. • When using a stroboscope, do not touch ANYTHING - it may be moving. Safety Glasses viii Wear safety glasses when: • Using a hammer to drive pins or similar parts • U sing a power drill • Using a spring hook to atta ...

Materials • You should use approved tools and test equipment. Make sure that electrical hand tools, such as Wire-Wrap! tools and power drills, are inspected regularly. • Do not use worn and broken tools and test equipment. • Do not use solvents, cleaners, or oils that have not been approved by IBM. Summary Preventio ...