TM 5-4220-226-14&P
6-5. Umbilical Maintenance-continued.
b. Repair
(1) Disassemble.
(a) Lay out umbilical on clean floor or ground surface where there is sufficient working room.
CAUTION
When cutting a marine or tape wrap, be careful not to damage
hoses or communication cable.
(b) Using knife, cut wrap at one end of umbilical and separate hoses and communication cable.
Continue separating hoses and cable until other end is reached.
(2) Assemble.
(a) Attach lifeline (1) to handle (2) with a soft eye splice.
(b) Apply tension to lifeline (1).
NOTE
During
wrapping
process,
pressure
is
maintained
in
pneumofathometer and air hoses.
(c) Measure 36 inches from diver's end of communication cable (3). Mark cable.
(d) Measure 12 inches from diver's end of pneumofathometer hose (4). Mark hose.
(e) Measure six inches from diver's end of air hose (5). Mark hose.
(f) Start 12 inches from end of rope, and wrap it once around handle.
(g) Gather cable hoses and handle and align marks.
(h) Make 21 wraps around all components.
(i) Make last turn around handle then around air hose.
(j) Pass 12-inch length under wrap and up between air hose and communication cable and
pneumofathometer.
(k) Pass one of ends under communication cable and secure with a square knot.
(I) Every 18 inches, tape cable, hoses, and lifeline together with eight to ten wraps.
(m) At every 100 ft mark, wrap tape wrap of 12 inches.
NOTE
Make last wrap 20 ft from surface end.
(n) Make a marlin wrap securing cable, hoses, and lifeline together.
6-6
