SAFETY SUMMARY - continued

11-5820-921-40-1

SAFETY SUMMARY

Safety precautions for protection of personnel and equipment are included throughout this manual

wherever a procedure or condition is described that requires special care. These precautions are listed

below.

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

CONTACT or severe electrical shock may result if personnel fail to observe

safety precautions.

Learn the areas of high voltage in each piece of equipment. Be careful not

to contact high-voltage connections when installing or operating this equip-

ment. (General.)

DANGER HIGH VOLTAGE

Dangerously high voltages (+1600 Vdc) are present on the plates of power

tubes 1Al4V1 and 1Al4V2 (Y-621 B), Tank Circuit Module 1A8, Plate

Assembly 1A9, and High Voltage Module 1A 13. Do not touch any part

of these components when the equipment is energized. (Page 3-7,

Make sure the power is off before performing any cleaning or inspection

Power Amplifier Tubes 1Al4V1 and 1A14V2 (Y-621 B) contain BERYLLIUM

OXIDE (BeO) CERAMICS. The dust or fumes from BERYLLIUM OXIDE

CERAMICS are HIGHLY TOXIC and breathing them can result in serious

personal injury or DEATH.

Power tubes lA14V1 and 1Al4V2 (Y-621 B) contain Beryllium Oxide Ceramics

which are used to conduct heat from the tubes (directly from the exposed

anodes). Normal use of electron tubes having Beryllium Oxide Ceramics is

safe. However, never alter, disassemble, grind, lap, fire, chemically clean, or

perform any other operation on any ceramic parts of the power tubes which

could possibly generate dust or fumes. Provisions for disposal of the Power

Tubes will be provided separately. (Page 3-7, Para. 3-13.)