LIQUID SIGHT INDICATOR - Continued.

TM 5-4120-369-14

LIQUID SIGHT INDICATOR - Continued.

5-24.

(1) Refer to paragraph 6-3 and discharge the refrigerant system.

(2) Refer to figure 4-4 and remove rear top cover.

(3) Refer to figure 5-8 and remove the liquid sight indicator mounting plate.

(4) Unsolder the liquid sight indicator from the refrigerant system tubing.

Installation.

(1)

Refer to figure 5-8 and install the liquid sight indicator and its mounting bracket.

Brazing operations should be carried out using approved

eye protection equipment and rods not containing cadmium.

Certain brazing operations may require mechanical ventilation.

Local preventive maintenance personnel should be queried

if doubt exists as to rod composition or ventilation

requirements.

(2) Refer to paragraph 5-6 and solder the liquid sight indicator tot he refrigerant

system tubing.

Refer to paragraph 6-3 and leak test the refrigerant system.

(3)

(4)

Refer to paragraph 6-3 and purge the refrigeration system.

R e f e r to paragraph 4-18 and install the rear top cover.

(5)

Caution should be exercised with fluorocarbon refrigerant

gas (freons) as they can displace oxygen and thereby

cause suffocation.

Personnel with a history or other evidence of cardiac

rhythm abnormalities should be made aware of the potential

for aggravation of existing cardiac rhythm abnormalities

or the induction of arrythmias, as a result of exposure

to fluorocarbon refrigerant gases (freons). Such individuals

should be evaluated by local medical authorities before

working in environments where potential freon exposure

may occur.

Refer to paragraph 6-3 and charge the refrigerant system.

(6)

5-24