(4) Connect inlet and outlet lines to pump (4).
4-43. Tube Assembly Clamps
c. Centrifugal Pump Test and Float Switch Test.
a. Removal. Remove damaged or defective tube
and fill with water.
clamps according to sequence of index numbers
(2) Close centrifugal sump circuit breaker located on
electrical distribution panel assembly.
(1) Remove nut, washer and bolts (7, 8, and 9, fig. 4-
(3) Float switch inside the sump assembly (20) shall
24). Spread clamps (10, 11) apart and slip from tube
energize the pump motor and discharge water from
(2) Remove bolts (21), washer (22) and spread
(4) Float switch shall shut off pump (4) when
clamps (23, 24) apart and slip from tube assembly.
approximately two inches (5.08 cm) of water is remaining
(3) Remove nut, washer and bolts (25, 26, 27).
in sump (20). The remaining water will
Remove bracket (29) and spread clamps (28) apart and
drain by gravity.
slip from tube assemblies.
4-42. Check Valve
Clamps (23, 24 and 28) are located
inside the water tunnel and are reached
by jacking up the shelter and removing
the panels covering the water tunnel.
(1) Disconnect inlet and outlet fittings from check
valve (6) located directly behind centrifugal pump (4) in
clamps as follows:
water service inlet box.
(1) Install bracket (29, fig. 4-24) and close clamps
(2) Remove check valve (6) from water service box.
(28) together and slip into tube assemblies. Install nut,
(3) Remove expander fitting from valve (6) and
washer and bolts (25, 26, 27).
remove packing (5).
(2) Install bolt (21), washer (22) and close clamps
(23, 24) together and slip into tube assembly.
the check valve as follows:
(3) Install nut, washer and bolts (7, 8, 9). Close
(1) Install new packing (5, fig. 4-24) on check valve
clamps (10, 11) together and slip into tube assemblies.
(6) and install expander.
(2) Position check valve (6) with the arrow pointing
down stream and tighten fittings on check valve (6).
Section XI. MAINTENANCE OF FABRIC PARTS
This section provides organizational maintenance
Adhesive and solvents are highly
personnel with general repair instructions applicable
flammable; perform work in well
to the fabric parts of the expandable shelter.
ventilated area and away from fire. Do
not store adhesives or solvents in or
4-45. Fabric Repair Procedures Using Adhesive
(1) Clean the area to be cemented with a clean cloth
dampened (but not saturated) with solvent to remove
Two fabric repair kits are furnished with
dust and foreign material. Do not allow excess solvent to
each combat support hospital and
collect at edges of seams. If the area is painted, remove
evacuation hospital The fabric repair kit
all paint; adhesive will not adhere to painted surfaces.
is to be used in making fabric repairs to
Dampen a clean cloth with solvent and rotate over the
components of the expandable shelter
area until all paint is removed.
(2) Apply first coat of adhesive (from repair kit) to
a. Application of Adhesive. Apply adhesive for
both surfaces to be cemented in medium to heavy coats.
installation of patches to cover holes or other damage to
Brush back and forth to work adhesive in.
fabric, to recement seams and to replace damaged
cemented fabric as follows: