1 / 24

Safety and Preventive Maintenance

Safety and Preventive Maintenance. What not to do. The Environment. Be sure to install the computer in a computer friendly environment Friendly Environment? Should be: Dust free (almost) Smoke free Have a controlled humidity level (50% to 70%). Ideal Places to install a computer. Office

fleur
Télécharger la présentation

Safety and Preventive Maintenance

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Safety and Preventive Maintenance What not to do

  2. The Environment • Be sure to install the computer in a computer friendly environment • Friendly Environment? Should be: • Dust free (almost) • Smoke free • Have a controlled humidity level (50% to 70%)

  3. Ideal Places to install a computer • Office • Home office/bedroom • Classroom • Dorm • Kitchen

  4. Paying attention to your computer’s home • If: • You have indoor pets (dogs/cats) • Pet hairs can cause poor air circulation • Dusty/dirty conditions • Cleaning your computer must be done more regularly • Avoid exposing your computer to the environment • Try placing your computer in a cabinet with proper air circulation

  5. How to clean your computer • Basic cleaning kit • Lint free cloth • Cleaning Solution • Mixture of water and soap • Cotton swaps

  6. Cleaning your computer cont. • Antistatic spray • 10 parts water with 1 part fabric softener • Dust removal • Small paintbrush • Air compressor (air duster) • Small vacuums

  7. Cleaning your computer Cont. • NEVER USE LIQUIDS INSIDE A COMPUTER. Never apply liquids directly to the surface of a computer. First apply to a cleaning cloth. Never use any solvent-based cleaners • E.g. will be anything that can be flammable or capable of corroding computer equipment

  8. Protection from Environmental Hazards • Dust-free/smoke-free • Controlled humidity • Controlled temperature • Good ventilation

  9. Other environmental hazards • Weight • Properly lift equipment • Use your legs and NOT your arms • Cuts • Majority of computer parts have sharp edges, take your time and be careful • Trip hazards • Be aware of your surroundings/ computer cables and extension cords

  10. Electrical Hazards • ESD • Electrostatic discharge • Damages computer components • Make sure you are properly grounded before working inside a computer • Grounds • Properly ground computer equipment to prevent electrical hazards • EMI • Electromagnetic interference • Strong magnetic fields • Powerful electrical motors • Can corrupt communication • Can corrupt data

  11. Electrical Hazards cont. • High Voltages • Computers use +/- 3.3, 5, and 12 volts DC • Power supplies handle up to 120-240 volts AC • This is why you never open a power supply case • Replace not repair • Monitors can store up to 50,000 VDC, to drive the CRT • Never work inside a monitor unless you are a trained technician with the proper tools

  12. Guidelines to follow • Never wear jewelry or other metal objects when working on a computer • Never have liquids around electrical components • Do not defeat the safety feature of the three-prong power plug by using two-prong adapters • Replace any worn or damaged power cords immediately • Avoid using improper extension cords • Keep all electrical covers intact • Make sure all vents are clear and have ample free-air space to allow heat to escape • Make sure before removing covers of peripheral devices that they are properly grounded

  13. Preventive Maintenance • By following general cleaning rules and safety measures you can prolong the life of your computer • Monitors • Keep it clean – periodic cleaning, dusting, and good common sense • Use simple cleaning solutions, never use aerosol sprays, solvents or commercial cleaners • Do not leave monitors on for extended periods • Use a screen saver to prevent burn-ins • Never work inside a monitor • Monitors emit radiation. Tampering with internal settings can increase hazards

  14. Preventive Maintenance cont. • Hard Drives • Avoid rough handling • Never move a hard drive when it is still spinning • Never expose the internal parts • Perform regular data backups • Use software such as scandisk, defragmentation, and antivirus programs • Keyboard/Mouse • Use a hand held vacuum or brush to remove dust • Never use spray cleaners • Never touch the ends of the optical light with your fingers

  15. Preventive Maintenance Cont. • Floppy Drives • Diskettes • Do not expose to magnets • Never touch the exposed surface of a floppy diskette • Never use floppy diskettes that have bend dust covers • Avoid exposure to extreme temperatures

  16. Basic computer technician toolkit

  17. Screwdrivers • Flat head • Phillips • Torx • Nut driver

  18. Tweezers

  19. Needle nose pliers

  20. Parts Retriever

  21. Wire Stripper

  22. Multimeter

  23. Antistatic wrist strap

  24. Network Tools • RJ 45 CRIMPERS • RJ 45 CABLE TESTER • RJ 45 CLIPS

More Related