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TM 10-4930-247-13&P
2-12. OPERATING PROCEDURES.
a.
General. The HTARS has two primary modes of operation, refuel and recirculation. In the refueling mode, fuel is
pumped from the HEMTT tanker through the system hoses to the refueling points (nozzles). In the recirculation
mode, the refueling nozzle (CCR or D1) is disconnected from the refueling point and the recirculation nozzle is
connected. The recirculation nozzle is connected to the HEMTT tanker and fuel circulates through the system
hoses and back to the tanker. The HTARS can operate in both modes at the same time.
b.
Single Point Refueling Nozzle (D1) Operation.
CAUTION
Immediately drain a substantial portion of the fuel from the nozzle whenever the
valve on the hose attached to it is turned to off or the nozzle is removed from the
system. The trapped fuel can create large internal pressure that can damage the
nozzle when the temperature rises.
Nozzle Connection. Refer to figure 2-13.
(1)
Remove dust cover (1) from end of nozzle body (2).
(2)
Grasp handles (3) and hold end of nozzle body (2) in alinement with aircraft refueling adapter (4).
NOTE
Press nozzle body against adapter while slightly rotating the nozzle to aline the
nozzle index pins with the adapter slots.
(3)
Press nozzle body (2) against aircraft refueling adapter (4). Turn handles (3) to the right until end of nozzle
mates with aircraft refueling adapter. Continue to turn handles to the right until nozzle body locks firmly
onto aircraft adapter and contacts mechanical stops.
WARNING
Setting control lever to less than full OPEN position is unsafe and can result in a
flowing fuel disconnect and dangerous fuel spill. Make sure handle is in the full
OPEN position.
CAUTION
If control lever is not in the full OPEN position (over center), refueling time will
increase and premature failure of nozzle and/or aircraft refueling adapter may
result.
(4)
Rotate control lever (5) to full OPEN (over center) position against the internal mechanical stop.
(5)
Verify that base of control lever (4) prevents rotation of nozzle body (2) by attempting to disengage nozzle
from aircraft refueling adapter (4).
Change 5 2-33
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