TM 9-4120-403-14
Figure 5-28. Pressure Relief Valve (V3)
Replacement
(1) Using two wrenches, hold fitting so that it is not twisted and unscrew pressure relief valve.
(2) Apply joint sealer to threads of valve.
(3) Using two wrenches, screw pressure relief valve in place while holding adapter fitting.
Follow-on procedures:
(3) Leak test all newly connected joints and those in the repaired area. (See para 5-10.)
(4) Evacuate the refrigeration system. (See para 5-11.)
(5) Charge the refrigeration system, but do not operate unit. (See para 5-12.)
5-91