TM 10-6640-238-13 4-140 4-58.    THERMOMETER CASE. This task consists of: a. Remove b. Install INITIAL SET-UP Tools Required General Mechanics Tool Kit, (Appendix B, Section III, Item 1) Portable Electric Drill, (Appendix B, Section III, Item 2) Twist Drill Set, (Appendix B, Section III, Item 2) Hand Blind Riveter, (Appendix B, Section III, Item 3) Materials/Parts Required Lockwashers, (5) Rivets, (8) REMOVE 1. Remove Thermometer Case.  See Figure 4-54. a. Open cabinet V. b. Remove quick release pin (1) and open cabinet V. c. Remove eight rivets (2) securing thermometer case (3) to cabinet V. d. Remove two screws (4) and retaining bracket (5). e. Remove four screws (6) and pin support (7). 2.     Remove Bracket Support. a. Open cabinet U. b. Remove two screws (8), screw (9), washer (10), lockwasher (11), nut (12), and bracket support (13). 3.     Remove Bracket. a. Open cabinet W. b. Remove screw (14), washer (15), lockwasher (16), nut (17), two screws (18) and bracket (19).  Discard lockwashers. c. Remove four screws (20), washers (21), lockwashers (22), nuts (23), and support pin receptacle (24). INSTALL 1. Install Bracket.  See Figure 4-54. a. Install support pin receptacle (24) and secure with four screws (20), washers (21), lockwashers (22), nuts (23). b. Install bracket (19) and secure with screw (14), washer (15), lockwasher (16), nut (17), and two screws (18). 2.     Install Bracket Support. a. Install bracket support (13) and secure with two screws (8), screw (9), washer (10), lockwasher (11), and nut (12).