Figure 4-17. Removal and installation of sight glass

TM 5-4120-339-14

FIGURE 4-2

Figure 4-17. Removal and installation of sight glass

d. Removal. (See figure 4-18.)

e. Installation.

(1) Refer to figure 4-18 and install the evaporator coil in the unit.

(2) Perform any further maintenance of refrigeration components required.

(3) If no further maintenance of refrigeration components is required, refer to paragraph 4-8 and purge the

refrigerant system.

(4) Refer to paragraph 4-4c and check the evaporator coil and the dehydrator for refrigerant leaks. Refer to

paragraph 4-4d and repair any leaks found.

(5) Refer to figure 4-4 and evacuate the refrigerant system.

(6) Refer to paragraph 4-10 and charge the system with refrigerant.

(7) Re-perform the test procedure of paragraph a to check for refrigerant leakage.

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