PART B - EQUIPMENT LAYOUT
Ensure that personnel lay out the HTARS (Figure 4-2) in a manner most practical for the situation. Avoid
obstacles and take advantage of terrain features. When laying out the equipment, personnel should never
remove a dust cap until ready to make a connection. This will prevent dust or particulate matter from
entering the system and causing fuel contamination. Likewise, when disassembling, personnel should cap
equipment immediately after uncoupling. When laying out the HTARS, follow the procedures below.
Position Vehicle. Ensure that personnel select the most level ground to position the M978 HEMTT
tanker. Avoid areas near bodies of water to avoid contamination, and use the highest ground possible to
prevent vapor accumulation. When positioning the vehicle, remember the system should be laid out so that
helicopters can land and refuel into a headwind or crosswind. Make the most use of natural concealment.
Position the vehicle to allow easy exit without blocking exits. After positioning vehicle, drive a ground rod at
least 3 feet into the ground, attach the vehicle ground cable to the ground rod, position fire extinguishers
within easy reach, and post NO SMOKING signs.
Connect System Components. Personnel should connect the 3-inch by 50-foot discharge hose to the
suction hose on the HEMTT tanker (the tanker suction hose is connected to the bulk receptacle filter on the
HEMTT tanker). Connect the T-to the 30-inch discharge hose. Roll a 2-inch by 50-foot discharge hose from
both sides of the T-and connect both discharge hoses to the T. Connect another T to the end of each 2-inch
discharge hose. Roll out and connect two 2-inch by 50-foot discharge hoses to each outer "T". At the end of
both outer 2-inch discharge hoses, connect an elbow fitting. Unroll and connect a 2-inch by 50-foot
discharge hose to each of the two Ts and elbow fittings. Put FLOW handles in flow position after
connections are made.
NOTE: The unisex fittings will not connect if the FLOW handles are in the flow position.
Connect Nozzles. Personnel should connect the type of nozzle to be used for the operation to the 2-inch
discharge hose at each point. The CCR and D-1 nozzle connect to the 2-inch discharge hose. The overwing
(open-port) and recirculation nozzle mate to the outlet of the CCR nozzle. Refer to TM 5-4930-235-13&P
(Operators Maintenance Manual for Closed Circuit Refueling Nozzle Assembly) for information on nozzles.
Ground Equipment. Personnel should drive a grounding rod into the ground 10 feet back from the end
of each dispensing hose. Loop the dispensing hose at each point back to the ground rod and hang the
nozzle on the ground rod hanger. Connect the clip of the nozzle grounding wire to the ground rod at each
point. At each point, place a CO2 or dry chemical fire extinguisher. Also, place a spill container and a filled
5-gallon water can at each point.
Camouflage Equipment. Personnel should camouflage the truck and system to the extent required by
the tactical situation. Natural concealment such as woodlines, hedgerows, vegetation, and natural terrain
contours should be used when possible. Straight lines of the hoseline can be broken up by breaking
branches and placing them under the hoseline to hold them in place.