TM 10-6640-239-13 4-140 4-61.    PROPANE CYLINDER STORAGE CABINET. 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, (10) REMOVE Remove Propane Cylinder Storage Cabinet.  See Figure 4-55. a. Remove 12 screws (1) and propane storage rack (2). b. Remove six screws (3) and left propane rack bracket (4). c. Remove six screws (5) and right propane rack bracket (6). d. Remove four screws (7) lockwashers (8), two screws (9), lockwashers (10) and propane cylinder storage cabinet (11).  Discard lockwashers. INSTALL Install Propane Cylinder Storage Cabinet.  See Figure 4-55. a. Install propane cylinder storage cabinet (11) and secure with four screws (7) lockwashers (8), two screws (9), lockwashers (10). b. Install right propane rack bracket (6) and secure with six screws (5). c. Install left propane rack bracket (4) and secure with six screws (3). d. Install propane storage rack (2) and secure with 12 screws (1).