TM 5-3805-264-14&P
4-19.
HEAT SHRINKABLE TUBING (Con't).
DO NOT touch heat shrinkable tubing for at least 30 seconds after heating. Heat
shrinkable tubing is hot and will burn you.
(4)
Hold hot air blow gun (Item 2, Appendix I) 4-5 in. (10.2-12.7 cm) away from heat shrinkable
tubing and apply heat for approximately 30 seconds. Stop applying heat as soon as heat shrinkable tubing forms to
the shape of the electrical connection.
4-20.
ELECTRICAL GROUND POINTS.
Many electrical problems are the result of poor ground connection. You can ensure that ground connec-
tions are good by performing the following steps:
Although battery ground cable must be connected in order to test electrical circuit
voltage, disconnect battery ground cable before performing resistance tests or
replacing parts. This will prevent shock to personnel, and damage to parts and
equipment.
(1)
Remove hardware connecting ground cable terminal lug to ground point.
Dry cleaning solvent, P-D-680, is toxic and flammable. Always wear protective gog-
gles and gloves, and use only in a well-ventilated area. Avoid contact with skin,
eyes, and clothes, and DO NOT breathe vapors. DO NOT use near open flame or
excessive heat. The solvent’s flash point is 100°F-138°F (38°C-59°C). If you become
dizzy while using cleaning solvent, immediately get fresh air and medical help. If
solvent contacts eyes, immediately wash your eyes and get medical aid.
(2)
Clean mounting hardware, ground cable terminal lugs, and ground point with dry cleaning
solvent (Item 18, Appendix F) and scrub brush (Item 3, Appendix F).
(3)
Remove any rust with wire brush (Item 4, Appendix F).
(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. Ensure that all hard-
ware is tight.
4-9
