TM 10-5410-221-14/1
c. Repair. Check valve is not reparable. Remove and
assemblies to serviceable condition, replace the tube
assembly.
replace defective valve only.
d. Installation. Install check valve in reverse order of
(2) Inspect mounting brackets for damage and
misalignment.
If possible straighten any bent or
removal (para 4-42).
misaligned brackets by means of a padded vise, pliers,
10-5. Water Supply and Drain Tube Assemblies
or hammer. Repaint bracket assemblies by applying
(Water Tunnel)
primer and allowing to dry and painting with paint
a. General. The water and drain tube assemblies are
conforming to Federal Standard 595, Color Chip 34087.
used to supply hot and cold water to the shelter and
d. Installation. Install the water supply and drain tube
drain waste water from the shelter; They consist of
assemblies in reverse order of removal, and observe the
stainless steel tubes with flared ends and equipped with
following:
nuts and sleeves.
(1) Use new packings at required fittings.
b. Removal. Remove the supply and drain tube
(2) Pot all tube assemblies which enter the shelter
assemblies according to figures 10-1 and 10-2
using
RTV-731,
Dow
Corning Corp., Midland,
c. Repair and Overhaul. Repair or overhaul the
Michigan, or equivalent.
shelter supply and tube assemblies as required to return
(3) Torque all fittings using good shop practice.
to a serviceable condition as follows:
e. Test. Test the water system and vacuum plumbing
(1) Inspect all tube assemblies for damaged
for leaks as follows:
threads, nicks, dents, bent tubes or burrs. If possible,
(1) Install and tighten all nuts, caps, and plugs on
dress all nicks and burrs with emery cloth
water line and vacuum stubs extending, from water box
assuring that enough wall thickness of tube remains to
into shelter.
assure sufficient strength. Minor dents in the tube
(2) Install and tighten all nuts, caps, and plugs in
assembly are acceptable so long as the function or fit of
plumbing outlet box of shelter.
tubes is not affected. Dress minor damage to threads
(3) Connect air supply (60 PSIG)(4.218 kg per sq
with emery cloth and then pressure check to assure that
cm) to "cold water in" and check connections for leaks.
there are no leaks present. Minor bent tubes are
(4) Connect air supply (60 PSIG) (4.218 kg per sq
acceptable as long as function or fit is not affected. If
cm) to "hot water in" and check connections for leaks.
possible straighten tubes using a tube bending tool or
clamping in a padded vise, or by hand. If methods listed
above
cannot
return
the
tube
10-1. Plumbing System, Installation and Disassembly (Sheet 1 of 2) (TS 013834)
10-2
