|
| |
TM 9-2330-272-14
2-23. FUEL SERVICING (M131A4C AND M131A5C) (Con’t).
e. Defueling Through 225 gpm (852 Ipm) System.
WARNING
DO NOT smoke while loading or unloading fuel, when handling fuel containers, or when
located within 50 ft (15.3 m) of fueling or fuel storage areas. Failure to follow this
warning may cause a spark and explosion, resulting In serious injury or death to
personnel.
NOTE
l Product is metered and filtered when using this fuel servicing method.
l For accountability in defueling operations, always load fuel into an empty
compartment or one that has been accurately gaged. Refer to FM 10-69 for
gaging procedures.
l Refer to the appropriate flow diagram at end of subparagraph e for assistance.
(1) Shut down towing vehicle engine and set brakes. Refer to towing vehicle technical manual.
(2) Remove fire extinguishers from mounting brackets and take to point of operation.
WARNING
Connect bonding and grounding connections before beginning any fuel handling
operation. Maintain bonding and grounding connections until after all fuel handling is
completed. Connections must be made to clean, unpainted surfaces. An unbended
and ungrounded or improperly bonded and grounded semitrailer could produce a
spark. The resulting explosion will cause serious injury or death to personnel.
(3) Connect bonding and grounding connections (para 2-13).
(4) Ensure that all manually operated valves (3, 4, 8, 11, 12, 23, and 24) are closed. Ensure that 3-way
flow valve (20) is in position 1 with operating lever pushed inward as far as possible.
(5) If equipped with read-out flow selector dial, set selector knob to zero, Close flow selector valve
(0-55 gpm) (7).
WARNING
Use extreme caution when working or walking on top of semitrailer. Catwalk can
become slippery due to moisture or fuel spillage. Failure to follow this warning may
result in serious injury to personnel.
(6) Have assistant open manhole fill cover of compartment (13, 14, 21, or 22) to be filled (para 2-14).
(7) Open emergency relief valve of compartment (13, 14, 21, or 22) to be filled by pulling outward on
operating control lever.
(8) Open manifold (12) valve of compartment (13, 14, 21, or 22) to be filled.
(9) Remove short spout from nozzle (2) and install auxiliary long spout on nozzle.
(10) Start auxiliary engine (para 2-15).
(11) Open defuel cutoff valve (23) and 225 gpm (852 lpm) cutoff valve (4).
2-74
|
