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TM 9-2320-356-BD
Section IX.
METAL TUBING
3-28.
GENERAL
To operate some of the vehicle mechanisms, a considerable amount of energy must be
exerted.
Hydraulic power is used to perform these high-energy tasks. High-energy
requirements (or high-speed tasks) are usually met with high-pressure hydraulic
lines or tubing made of metal.
There are also metal low-pressure lines, usually
used when heat is a consideration or shape is critical.
This section covers
expedient repairs on metal tubing.
3-29. METAL TUBE BENDING
Bending may be required to make tubing repairs.
Dry sand can be poured into the
tube to be bent.
The ends must be plugged to keep the sand from falling out. Soft
metal tubes can be sealed with finger pressure, but harder lines should have a plug
inserted.
After bending the tube, flush the sand from the tubing with a liquid to
ensure removal of all particles.
3-30. HYDRAULIC LOW-PRESSURE METAL TUBING REPAIR
General Information:
Damaged low-pressure metal hydraulic lines can be replaced with other available
lines (high-pressure, metal, or rubber hoses).
Limitations:
o None
Personnel/Time Required:
o 1 soldier
o 30-120 minutes
Materials/Tools:
o
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AN/MS fittings
Hacksaw
Hand file
Beading tool
Wire
String
Sealant
Shrink tubing
Tube cutter
Other Options:
o Refer to chapter 5.
3-20
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