TM 10-6640-239-13 4-114 4-49.    EXPLOSION PROOF REFRIGERATOR. This task consists of: a. Remove b. Install INITIAL SET-UP Tools Required General Mechanics Tool Kit, (Appendix B, Section III, Item 1) Materials/Parts Required Lockwashers, (2) General Safety Instructions WARNING ELECTRICAL SHOCK Before performing any  maintenance actions on electrical equipment, ensure  all electrical power has been turned off.  Failure to comply with this warning may result in serious injury or death. REMOVE Remove Explosion Proof Refrigerator.  See Figure 4-43. a. At Main Power Panel, place circuit breaker A1CB6 to OFF. b. Remove two screws (1), lockwashers (2), and washers (3) securing refrigerator (4) to plate (5).  Discard lockwasher. c. Remove three screws (6) securing refrigerator (4) to plate (7). d. Move refrigerator (4) out from wall far enough to unplug power cord from convenience outlet. e. Remove refrigerator from beneath countertop. INSTALL Install Explosion Proof Refrigerator.  See Figure 4-43. a. Slide new refrigerator in place beneath countertop far enough to plug power cord into convenience outlet. b. Align refrigerator with holes in plate (7) and secure with three screws (6). c. Secure rear of refrigerator (4) to plate (5) using two screws (1), lockwashers (2), and washers (3). d. At Main Power Panel, place circuit breaker A1CB6 to ON. e. Turn refrigerator (4) on and check operation. NOTE For component replacement refer to TM 10-6640-219-13&P.