TM-10-4930-247-13-P
HEMTT TANKER AIRCRAFT REFUELING SYSTEM MODEL HTARS100
TECHNICAL MANUAL; OPERATOR’S, UNIT AND DIRECT SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST
FEBRUARY 1994
TM-10-4930-247-13-P - Page 33 of 309
TM 10-4930-247-13&P
2-5.
VALVED DRY BREAK COUPLINGS.
Refer to figure 2-5.
NOTE
Valved couplings are installed on fuel hoses, tees and some adapters.
Operation
and function of the valved couplings is the same for all applications.
Control Arm (1).
The control arm is attached to an internal ball valve that controls the flow of fuel through the valved dry break
coupling.
Moving the control arm to OPEN allows fuel to pass through the coupling.
Moving control arm to
CLOSE stops the flow of fuel.
To operate the valved coupling, pull back on grip (2) and move control arm to
desired position.
Valved couplings cannot be disconnected unless control arms are set to CLOSE.
Grip (2).
The spring loaded grip operates a mechanical lock that secures the control arm (1) in the OPEN or CLOSE
positions.
Pull back the grip to release the lock.
Figure 2-5.
Valved Dry Break Coupling Controls.
2-6
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