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TM 5-3825-220-13&P
6-4.7 Hoselines - Cont'd
4.
Cutting out the damaged section of hose and rejoining with banded adapters and couplings or with the 3-
part repair clamp assemblies is preferable to any taping procedure. When cutting hose, it is recommended that the cut
be made at least 3 inches back from the visible rupture or tear to assure that any torn or overstressed fabric and rubber is
removed.
5.
The repaired hose should be tested before submitting it to routine service.
6.
When possible, repairs should be made away from the operating site in a qualified shop.
6-4.8 Quick Disconnect Camlock Couplings
a.
Quick disconnect couplings with adaptation to various types of fittings are used throughout the TPT. A generic
quick disconnect coupling is shown in Fig. 6-10. The various types of fittings are described in para.'s 2-5.4d, e, f, g and
h, all manufactured to the referenced military standards.
b.
If the coupling is leaking when fully closed and is not otherwise damaged, it should be opened to inspect the
gasket. A mere gasket replacement will most often solve the problem.
c.
If replacing a gasket does not solve the problem, it is recommended that the entire coupling (M&F) be replaced.
d.
Reconditioning the coupling can be handled in a qualified, properly equipped shop. The following is a listing of
possible problems and solutions.
1. Cam pins worn. Replace pins.
2. Cams worn. Replace cam arm.
3. Cam arm broken or bent. Replace cam arm.
4. Pull rings can be replaced in the field or shop as necessary.
5. If seating surfaces are scored preventing a good gasket seat, they may be reconditioned with a light machine
cut and/or grinding. It is not recommended that any attempt be made to repair scored seats that require removal
of more than 0.015 inches of metal and then only once.
6. Distorted coupling halves must be replaced.
6-4.9 Grooved Coupling Clamps
a.
Information on grooved coupling clamps is on Fig.'s 6-11,6-12, and 6-13. Double grooved coupling clamps are
Government furnished and are used in the switching manifold joining aluminum pipe valves and fittings. Single grooved
coupling clamps are used within the TPT. Single grooved clamps fit the first groove of double grooved items. Both
types of clamps are manufacturer's proprietary items and thus dimensional information is limited. The key dimensions
shown are as specified in the Government issued purchase description for double grooved clamps. The double grooved
clamps are manufactured by La Barge Products. The single grooved clamps are manufactured by Victaulic.
b.
Recommended corrective maintenance procedures are as follows:
6-17
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