TM 10-3610-202-14 (b) Withdraw  handle  and  remove  handle spacer. (c) Remove   screws,   nuts   and   washers which  attach  the  latch  mechanism  center  plate  to  the inside of the door and withdraw mechanism. (d) Position replacement latch mechanism with long rod through lower door hole, short rod   through   upper   door   hole   and   align   center   plate mounting holes. (e) Install     screws,     nuts     and     washers which attach the latch mechanism. (f) Transfer   door   handle   locking   screw from old latch mechanism. (g) Position    spacer    over    new    handle assembly  center  rod  and  insert  rod  through  door  and into latching mechanism. (h) With  handle  pointing  down  and  with latch   mechanism   in   locked   position,   tighten   locking screw. (3) Door   assembly   replacement.      Replace door assembly as follows: (a) Remove  screws  attaching  door  hinge and remove door. (b) If right-hand door has been removed, transfer handle and latch mechanism as follows: 1. Loosen locking screw which secures handle and center rod assembly to the latching mechanism inside right-hand door. 2. Withdraw handle and remove handle spacer. 3. Remove screws, nuts and washers which attach the latch mechanism center plate to the inside of the door and withdraw mechanism. 4. Position latch mechanism in replacement door with long rod through lower door hole, short rod through upper door hole and align center plate mounting holes. 5. Install   screws,   nuts   and   washers which attach the latch mechanism. 6. Position spacer over handle assembly  center  rod  and  insert  rod  through  door  and into  latching  mechanism.    With  handle  pointing  down and   with   latch   mechanism   in   locked   position,   tighten locking screw. (c) Position door assembly against cabinet panel and install attaching screws. (4) Shelf  content  retainer  repair.    Repair  of the   retainer   bar   is   limited   to   straightening   of   minor bends.    This  can  best  be  accomplished  by  placing  the bar  in  a  vise  and  applying  pressure  to  the  damaged area. 4-21.  Storage Shelf. The storage shelf mounted on the left forward wall of the shelter provides storage for the art supplies.  The shelf   is   constructed   of   welded   steel   and   contains   18 compartments. a. Inspection        Inspect    the    storage    shelf    for general  condition  and  security  of  attachment.    Replace as required. b. Removal  To remove the storage shelf proceed as follows: (1) Drill out existing six attaching blind rivets. (See fig.  4-12). 4-30