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TM 10-4930-247-13&P
2-10. ASSEMBLY AND PREPARATION FOR USE - cont.
e.
Valved Dry Break Coupling Connection. Refer to figure 2-8.
CAUTION
To prevent damage to the equipment and contamination of the fuel system, use
care when connecting couplings to avoid getting dirt, sand and debris on coupling
mating surfaces and sealing components. Do not remove dust caps from
couplings until components are ready to be connected.
NOTES
·
All dry break type couplings are interchangeable. A valved dry break coupling
maybe connected to either a valved or non-valved dry break coupling.
·
The following instructions apply to all operator tasks requiring connection of
valved dry break couplings. One coupling is shown. The others are similar.
(1)
Pull out and hold grip (1) and set control arm (2) to CLOSE position.
(2)
Twist dust cap (3) to the left and disconnect from coupling (4!.
(3)
Twist dust cap (5) to the left and disconnect from coupling (6),
NOTE
One locking lug is larger than the other. Both locking lugs match a socket in the
mating coupling.
(4)
Mate locking lugs (7) on coupling (4) with sockets (8) in body of coupling (6).
(5)
While holding coupling (6) in place, turn coupling (4) to the right (clockwise) until both couplings are locked
together.
CAUTION
DO NOT force flow handle to OPEN position. Damage to the interlocking
mechanism can result in inadvertent disconnect during operation.
If control arm cannot be set to OPEN, couplings may not be correctly connected. If
flow handle fails to operate smoothly or hose connectors fail to lock with control
arm (flow handle) in the OPEN position DO NOT USE.
(6)
Pull back on grip (1) and set control arm (2) to OPEN position.
CAUTION
To prevent dust, grit and sand from contaminating couplings, connect caps
together after couplings are joined.
(7)
Connect dust cap (3) to dust cap (5).
Change 3 2-23
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