TM 5-3805-254-20-1
ELECTRICAL GROUND POINTS
Many electrical problems are the result of poor ground connections. You can make sure ground connections are good by
doing the following:
WARNING
Disconnect battery ground cable before cleaning or replacing parts. This will keep you from
getting shocked or damaging parts.
1.
Remove hardware connecting ground cable terminal lug to ground point.
2.
Clean mounting hardware, ground cable terminal lug, and ground point with cleaning compound and acid
swabbing brush.
3.
Remove any rust with wire brush and emery cloth (item 3, appendix C).
4.
Look for cracks, loose terminal lugs, and stripped threads. Replace any defective parts.
5.
Install hardware connecting ground cable terminal lug to ground point. Make sure all hardware is tight.
LINES AND PORTS
To keep dirt from contaminating fluid systems when removing and installing hydraulic, fuel, coolant and oil lines, do the
following:
1.
Clean fittings and surrounding areas before disconnecting lines.
2.
Cover, cap, plug, or tape lines and ports right after disconnecting lines. Whenever possible, use protective plastic
caps and plugs. When these are not available, use clean rags, duct tape, (item 23, appendix C) or similar
materials to keep dirt out of fluid systems.
3.
Make sure new and used parts are clean before installing them.
4.
Wait to uncover, uncap, unplug, or remove tape from lines and ports until just before installing lines.
ANTISEIZING TAPE
New antiseizing tape (item 22, appendix C) should be used to keep connections from leaking whenever you are
connecting fuel, oil, air, and hydraulic system lines and fittings without compression sleeves or packings as follows:
1.
Be sure threads are clean and dry.
2.
Start tape one or two threads from small or leading edge of fitting, joining tape together with an overlap of about
1/8 inch (3.18 mm) for fittings with fine threads. For fittings with coarse threads, tape should be wrapped around
threads two or three times.
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