RevisiontoMIL-DTL-0083833E.doc

MIL-DTL-0083833E

28 April 2015

USED IN CONJUNCTION WITH

MIL-DTL-0083833D

16 April 2015

MIL-DTL-0083833C

16 April 2015

MIL-DTL-0083833B(84)

12 December 2014

MIL-DTL-0083833A

10 June 2014

DETAIL SPECIFICATION

3000 GALLON AERIAL BULK FUEL DELIVERY SYSTEM BLADDER

A revision is made to MIL-DTL-0083833C, dated 16 April 2015, regarding paragraph 4.5.6.6. The entire paragraph 4.5.6.6 in MIL-DTL-0083833(84) is deleted and replaced by the following.

1. Paragraph 4.5.6.6, Hydrostatic leakage test

The hydrostatic leakage test shall be performed on the bladder to verify the integrity of the bladder fabric, fittings, and external seams when pressurized with water. Fill the bladder with water until a total of 2400 gallons is obtained. Seal the vent nozzle by activating the locking arms. Tighten all ratchet assemblies on diagonal and lateral restraints. Continue filling the bladder with water until the pressure gauge indicates 2.25 psig. Secure water and set valve controls to allow pressure gauge monitoring of the bladder. Commence a 15-minute test time while monitoring pressure in the bladder. At completion of the test duration, adjust valves to relieve pressure on the bladder. The bladder shall be fully assembled and installed on a simulated Type V, aerial delivery platform. The Type V aerial delivery system shall be simulated by laying out on a 108 inch by 240 inch level surface capable of supporting the bladder filled with water, two 240 inch length, 3 inch angle irons or equivalent. Along the length of the simulated type V side rail clevises will be mounted to accept 10 lateral and 14 diagonal tie down straps. The type V aerial delivery platform provides for up to 40 tie down points along the 20 foot length of the platform. The spacing of the tie down points repeats a pattern each 2 feet beginning from the first edge. The first clevis location is 1.7 inch followed by 6.875 inch on center followed by 6.875 inch followed by 6.875 inch. At multiples of 2 feet from the first edge this pattern is repeated for a total of 10 times for a total of 40 tie down locations. The left and right angle irons shall be mounted on the previous mentioned surface spaced 108 inches apart. All diagonal restraints and lateral restraints shall be connected per the attached figure 2-1, using ratchet straps and clevises. The vent nozzle assembly shall be left unfastened. The fill/evacuate nozzle shall be installed and sealed. A water source shall be connected to the fill/evacuate pressure gauge port in a configuration that fill and pressure readings may be accomplished. The water source must contain a flow meter to indicate total flow in gallons. Failure of the bladder to maintain the specified pressure without leakage shall be cause for rejection (see 3.4.5).