UNIT TROUBLESHOOTING

TM 9-4120-425-14&P

UNIT TROUBLESHOOTING - Continued

0014-00

WARNING

HIGH VOLTAGE is used in the operation of this equipment. DEATH ON

CONTACT may result if personnel fail to observe safety precautions. Never work on

electrical equipment unless there is another person nearby who is familiar with the

operation and hazards of the equipment and who is competent in administering first

aid. When the technician is aided by operators, he must warn them about dangerous

areas.

WARNING

Always ensure the input power supply to the equipment is shut off before beginning

work on the equipment.

Be careful not to contact high voltage connections of 208 volts AC circuits when

servicing this equipment. Whenever the nature of the operation permits, keep one

hand away from the equipment to reduce the hazard of current flowing through vital

organs of the body.

Do not be misled by the term "low voltage." Potentials as low as 30 volts may cause

death under adverse conditions.

WARNING

Take particular care to ground capacitor C1 which is likely to hold a dangerous

potential. When working inside the equipment, after the power has been turned off,

always ground every part before touching it.

WARNING

Do not operate the equipment without all guards, louvers, and covers, including

compressor terminal cover, in place and tightly secured.

WARNING

The refrigerant system and components contain liquid and gas under high pressure.

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