TM 10-6640-239-13 4-59 4-27.    PURGE INTAKE/EXHAUST DOOR. This task consists of: a. Remove b. Repair b. Install INITIAL SET-UP Tools Required General Mechanics Tool Kit, (Appendix B, Section III, Item 1) Drill and Bits, (Appendix B, Section III, Item 2) Drill Set, (Appendix B, Section III, Item 2) Hand Blind Riveter, (Appendix B, Section III, Item 3) Materials/Parts Required Gasket, (1) Lockwasher, (6) Rivets, (38) Wave Washer, (2) Adhesive MM-A-1617, Type II, (Appendix E, Section II, Item 2) REMOVE Remove Door Assembly.  See Figure 4-17. a. Remove three screws (1), and lockwashers (2) from door hinge (3).  Discard lockwashers. b. Remove two rivets (4) door (5) and spacer (6) from Mod Lab.  Retain spacer for reuse. REPAIR Repair Door Assembly.  See Figure 4-17. a. Remove screw (7), lockwasher (8), washer (9), latch (10), and wave washer (11).  Discard lockwashers and wave washers. b. Install latch (10) and wave washer (11) and secure with screw (7), lockwasher (8), and washer (9). c. Remove two screws (12), lockwashers (13), latch keeper (14), and spacer (15) from Mod Lab.  Discard lockwashers. d. Install spacer (15) and latch keeper (14) and secure with two screws (12) and lockwashers (13). e. Remove nine rivets (16) attaching door support (17) to hinge (18) and remove door support. f. Install door support (17) onto hinge (18) and secure with nine rivets (16). g. Remove nine rivets (19) attaching hinge (18) to door (5) and remove hinge. h. Install hinge (18) to door (5) and secure with nine rivets (19). i. Remove two rivets (20) attaching ball stud receiver (21) to door support (17) and remove ball stud receiver. j. Install ball stud receiver (21) to door support (17) and secure with two rivets (20). k. Unscrew and remove ball stud (22). l. Install ball stud (22) and screw in place. m.    Remove gasket (23) from door (5). n. Ensure no gasket (23) remnants are left adhering to door (5) bonding surface. o. Install gasket (23) to door (5) and secure with adhesive.