TM 10-6640-239-13 4-158 4-68.    FUEL SAMPLING KIT, TOOL KIT, AND BRACKETS. This task consists of: a. Remove b. Install c. Calibrate 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 Rivets, (16) REMOVE 1. Remove Tool Kit and Brackets.  See Figure 4-62. a. Open cabinet W to gain access to hardware. b. Loosen two straps (1) and remove tool kit (2). c. Remove four rivets (3) and two straps (1). d. Remove four rivets (4) and two brackets (5). e. Remove two rivets (6) and bracket (7). 2. Remove Fuel Sampling Kit and Storage Tray. a. Open cabinet W to gain access to hardware. b. Loosen strap (8) and remove fuel sampling kit (9). c. Remove two rivets (10) and strap (8). d. Remove four rivets (11) and storage tray (12). INSTALL 1. Install Tool Kit and Brackets.  See Figure 4-62. a. Install bracket (7) and secure with two rivets (6). b. Install two brackets (5) and secure with four rivets (4). c. Install two straps (1) and secure with four rivets (3). d. Install tool kit (2) and tighten two straps (1). 2. Install Fuel Sampling Kit and Storage Tray. a. Install storage tray (12) and secure with four rivets (11). b. Install strap (8) and secure with two rivets (10). c. Install fuel sampling kit (9) and tighten strap (8). CALIBRATE Refer to vendor manual for fuel sampling kit calibration procedures.