DEHYDRATOR. - TM-5-4120-369-140097

TM 5-4120-369-14

PRESSURE RELIEF VALVE - Continued

5-19.

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

(3) Refer to figure 5-3 and remove the clamp around the pressure relief valve by

removing the screw and washer that hold the clamp to the condenser fan housing.

(4) Unscrew the flare nut and remove the pressure relief valve.

Installation.

(1) Refer to figure 5-3 and install the pressure relief valve by fastening the

refrigerant circuit flare nut to the pressure relief valve.

(2) Using the screw and washer install the clamp that fastens the pressure relief

valve to the condenser fan housing.

Caution should be exercised with flourocarbon 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 arrhythmias, as a result of exposure

to flourocarbon refrigerant gases (freons). Such indivi-

duals should be evaluated by local medical authorities

before working in environments where potential freon

exposure may occur.

(3) Refer to paragraph 6-3 and leak test the refrigeration system.

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

(5) Refer to figure 6-3 and charge the refrigeration system.

(6) Refer to figure 4-18 and install top cover.

DEHYDRATOR.

General. The dehydrator (filter drier) is to be replaced whenever the refrigeration

system is opened for maintenance.

Removal.

Caution should be exercised with flourocarbon 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 arrhythmias, as a

result of exposure to flourocarbon refrigerent gases

freons. Such individuals should be evaluated by

local medical authorities before working in environments

where potential freon exposure may occur.

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