2-98
TM 3-4230-209-30&P
2-21. PLUMBING ASSEMBLY (CONT).
LOCATION/lTEM
ACTION
REMARKS
Plumbing Assembly/
Pump may be bolted to skid base during reassembly.
Using antiseizing tape or sealing compound, wrap or coat the external
Centrifugal pump (8)
Pipe nipple (9)
threads of pipe nipple (9), lower manifold (11), upper manifold (13), pipe
Pipe union (10)
bushing (15), pipe nipple (16), and pipe nipple (18).
Lower manifold (11)
Position centrifugal pump (8) upright on a flat surface. Screw together
Offset valve (12)
pipe nipple (9), pipe union (10), lower manifold (11), offset valve (12), and
Upper manifold (13)
upper manifold (13). Then screw into centrifugal pump (8) and hold in
place while each part is tightened, starting from its lowest point, with a
wrench. Do not tighten two parts of pipe union (10). The outlet in lower
manifold (11) must be alined with centrifugal pump (8). Firmly holding
lower manifold (11), tighten offset valve (12) until the handle stem is
opposite the port on lower manifold (11). While holding offset valve (12),
tighten upper manifold (13) until it is tight and alines with the shaft in
centrifugal pump (8).
Regulating valve (14)
Screw regulating valve (14) onto upper manifold (13) and screw pipe
Pipe bushing (15)
bushing (15) into regulating valve (14). Tighten pipe bushing (15) and
regulating valve (14) until the stem is pointing in the same direction as
offset valve (12).
Pipe nipple (16)
Screw pipe nipple (16), pipe elbow (17), and pipe nipple (18) together.
Then, as a unit, screw into pipe bushing (15). Tighten pipe nipple (18) and
Pipe elbow (17)
pipe elbow (17) until the outlet is vertical and is pointing downward.
Pipe nipple (18)
Tighten pipe nipple (18).
