TM 10-3930-669-20 4-13.  OIL FILTER TRAY REPLACEMENT (CONT). (7) Loosen   two   fittings   (26   and   27)   and   remove hoses (28 and 29) from elbows (30 and 31). (8) Loosen two clamps (32) and remove hoses (33 and 34) from fittings (35 and 36). (9) Loosen  fitting  (37)  and  remove  hose  (38)  from AOAP drain valve (39). 4-44