TM 55-1560-307-13&P REMOVAL 1. Disconnect   discharge   fuel   hose   (1),   at   FMCP quick disconnect coupling (2). 2. Disconnect other end of hose at quick disconnect (3) to main tank coupling. 3. Remove   quick   disconnect   couplings   (2   and   3) from  hose  to  be  replaced,  and  set  aside  for  installation on new hose. 4. Disconnect  suction  hose  (4)  at  quick  disconnect coupling (5) at FMCP. 5. Disconnect other end of hose at tee fitting (6). 6. Remove couplings (5) from hose (4). INSPECTION 1. Visually  inspect  new  hose  for  kinks  and  obvious damage to outer insulation. 2. Inspect  locknuts  on  new  hose  for  thread  damage and also damage to coupling fitting threads. INSTALLATION 1. Install   quick   disconnect   couplings   (2   and   3)   to both ends of hose (1). 2. Route  long  hose  under  tank  skid  carefully,  and secure  quick  disconnect  (3)  to  main  tank  coupling  first; then forward end to FMCP box coupling (2). 3. Install  quick  disconnect  couplings  (5)  on  suction hose (4). 4. Install other end of hose (4) to tee (6). 5. Secure   end   with   quick   disconnect   coupling   to FMCP box coupling. 3-20.  MAINTENANCE OF ERFS COMPONENTS. LIQUID    LEVEL    INDICATOR.        REPLACE    LIQUID LEVEL INDICATOR. This task covers: a.  Removal. b.  Inspection. c.  Installation. INITIAL SETUP Tools: 1-5/16 Crow Foot Material/Parts: Adhesive (item 14, Appx D) Liquid Level Indicator (61, 62, Fig C-2), Appx C Flashlight (explosion proof) Equipment Conditions: Refer to Figure 3-10. ERFS tank must be empty and separate from other tanks. Tank access cover removed. Tank grounded. Tank must be purged.  Refer to Chapter 3, paragraph 3-25. GENERAL SAFETY INSTRUCTIONS WARNING Injury    to    personnel    and    equipment may occur if the purging maintenance procedure    above    is    not    performed. The  fuel  vapor  and  air  mixture  in  the tank   can   cause   a   violent   explosion setoff    by    sparks    from    tools    being dropped in tank. REMOVAL 1. Remove retainer (1) and float (2). 2. Remove nut (3) and washer (4). 3. Remove tube (5). 3-28