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TM 10-4930-247-13&P
Section III. OPERATION UNDER USUAL CONDITIONS
2-10. ASSEMBLY AND PREPARATION FOR USE.
a.
Site Selection. Select a level installation area free of overhead obstructions . The site must be accessible to the
HEMTT tanker and approaching aircraft and be large enough to contain all system components. Surface contour
must provide good drainage away from operating equipment and aircraft staging points.
After selecting the installation area, position HTARS equipment near the site.
b.
Unpacking.
(1)
Remove HTARS components from transport vehicle.
(2)
To aid assembly, separate components into groups of similar parts during removal. For example, group all
the fuel hoses together, then all the tees, elbows and nozzles.
c.
Unrolling Fuel Hoses. Refer to figure 2-7.
WARNING
Proper grounding of HTARS components is required to prevent static sparks and
possible fire or explosion. Do not mix components from other fuel systems with
the HTARS system. HTARS hoses are internally grounded and must not be used
with ungrounded hoses.
NOTES
·
The following instructions apply to all fuel hoses used in the HTARS. Repeat
these procedures for each fuel hose during fuel system assembly.
·
Hose straps have two loops. One loop is used as a handle to lift and carry
hose; the other loop is wrapped over hose to prevent loss of hose strap.
(1)
Position rolled fuel hose (1) at first connection point.
(2)
Pull tag end of hose strap (3) against buckle (4) until slide (2) releases tension on strap. Remove tag end
of strap from buckle.
(3)
Unroll fuel hose (1) in direction of next connection point.
(4)
When end of roll is reached, go back to coupling ends of hose and pull one end to next connection point.
(5)
Swivel dry break couplings (5 and 6) so that control arms are facing up.
d.
Dry Break Coupling Assembly. Components of the HTARS are equipped with dry break couplings to permit rapid
system assembly and disassembly. There are two types of dry break couplings; valved and non-valved. Valved
dry break couplings permit isolation of defective components and control of fuel flow by opening or closing the
hand operated valve built into the coupling. Non-valved dry break couplings do not have an internal ball valve.
The following paragraphs describe procedures to connect both types of couplings.
2-21
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