TM 10-4320-345-13
3-6. COMPONENT REPLACEMENT(COUPLING CLAMPS)-cont.
WARNING
To prevent contamination of water system and damage to the equipment, use care when
installing coupling clamps to avoid getting dirt, sand and debris on sealing surfaces of mating
components Do not use petroleum based lubricants on coupling gaskets
CAUTION
To prevent leaks and ensure water tight connections, make sure coupling gaskets are installed
properly
b. Installation. Refer to figure 3-5.
(1)
Position replacement butterfly valve (5) in water system.
(2)
Apply a thin, even coating of lubricant to coupling gasket (6).
(3)
Slide gasket (6) over end of coupling on hose (4).
(4)
Align and mate ends of couplings on hose (4) and butterfly valve (5).
(5)
Slide coupling gasket (6) over ends of couplings on hose (4) and butterfly valve (5). Make sure
gasket is positioned as shown.
(6)
Position one half of coupling clamp (2) over coupling gasket (6) and into grooves of couplings on
hose (4) and butterfly valve (5).
(7)
Close other half of coupling clamp (2) over coupling gasket (6) while aligning clamp with grooves
of couplings on hose (4) and butterfly valve (5) . Hold clamp in position.
(8) Place assembly tool (1) on coupling clamp (2) . Move handle to closed position. As clamp is
squeezed together, make sure coupling gasket (6) is not pinched under clamp. Assembly tool
will lock in closed position when clamp is correctly seated.
NOTE
Locking pin must be installed with splines (ridges) pointing out from coupling clamp.
(9) Using hammer, drive locking pin (3) through locking pin holes in both halves of coupling clamp
(2). Make sure locking pin is sticking through both halves of clamp.
(10)
Pull handle of assembly tool (1) to open position, and remove tool from coupling clamp (2).
(11)
Repeat steps (2) through (10) for coupling clamp (7).
(12)
Startup water system (para 2-13c) and check for leaks at replaced component.
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