Section Il. OPERATION UNDER UNUSUAL CONDITIONS

2-8. Operation of the Equipment

position as in paragraph 2-5 e.

a. Inspect the voltage plug (fig. 2-2) into the proper

c. Combine fixed loads in increments of 3 KW, and

receptacle as in paragraph 2-5 d.

variable loads of 0 to 3 KW to any desired KW from 0 to

b. Turn voltage selector switch (fig. 2-1) to proper 30.

Section Il. OPERATION UNDER UNUSUAL CONDITIONS

2-9. Operation in Extreme Cold (Below 0 F.

insulation with solvents which may damage them.

(-18C.))

2-12. Operation Under Rainy or Humid Con-

The test set is designed to operate at temperatures

ditions

above 25 F. (-4 C.), but not below that temperature. Pro-

Use desicants to insure reduction of corrosion. In

tection against wind, snow and ice should be given the

areas of high temperature and high humidity, coat

unit in sub-zero temperatures.

components, such as the transformer, rectifier, varia-

ble transformer and fan motors with a fungus-proof

2-10. Operation in Extreme Heat

varnish.

The test set is designed to operate at temperatures

2-13. Operation in Salt Water Areas

up to 125 F. (52 C.). Prolonged usage in high tem-

perature and humidity areas requires treatment (see

2-14. Operation in High Altitudes

2-11. Operation in Dusty or Sandy Areas

The test set is designed to operate at altitudes from

sea level to 8,000 feet (2,440 m) at a temperature of 90 F.

Accumulated sand and dust must be removed every

(32 C.). Due to electrical characteristics changes, it is

50 operating hours or each month. Clean the interior

not advisable to operate the unit above 8,000 feet (2,400

with low pressure jet of filtered dry air. Wipe electrical

m).

components with a dampened soft cloth. Do not wipe

2-7