WATER DEMINERALIZER UNIT

TM 5-6640-213-14

d. Cleaning. Clean the interior of the icemaker with a cloth

soaked in a mild soap and water solution. Rinse and wipe dry with a

clean cloth. Clean and polish the exterior of the ice maker as

required using water-damp chamois.

The icemaker does not need lubrication.

Lubrication.

3-17.

WATER DEMINERALIZER UNIT.

Mixed bed demineralizer cartridges should be replaced when the

resin in the lower three-fourths of the cartridge changes from purple

to yellow. Cartridges should be kept away from-heat and the seals

should not be removed until ready for use. The exhange capacity will

be greatly reduced if the resins are allowed to dry completely.

Resins shrink because of moisture loss and the cartridge may not

appear full. The resins will expand when wet and will fill the

cartridge.

3-18.

ANEROID BAROMETER.

a. The aneroid barometer has an adjusting back plate, which

should be set for the alititude location of the laboratory. This

permits direct readings in terms of equivalent sea level pressure.

Dust the barometer with a dry cloth or dustung brush.

3 - 1 9 . DESICCATING CABINET.

Remove and replace the molded door gasket periodically to assure

a tight fit. Wipe clean with a dry cloth.