TM 9-2320-302-20
0228 00-5
GENERAL MAINTENANCE INSTRUCTIONS - CONTINUED
0228 00
TAGGING WIRES AND HOSES - CONTINUED
3.
Identify fuel, oil, and coolant lines when you are taking off more than one line at the same time. Mark tags with points to
which lines and hoses must be connected. If it is not obvious which end of a line goes where, tag each end of the line.
4.
Identify and tag other parts as required by name and installed location.
SOLDERING
CAUTION
Use low wattage soldering gun when soldering electrical wires, connectors, terminal lugs, and receptacles.
High wattage soldering guns may damage parts by overheating.
1.
Solder connection must be bright and clean before soldering. Remove dirt and grease with detergent (Item 11, WP 0235
00). Solder used must be of lead-tin alloy, rosin core (Item 29, WP 0235 00) with soldering flux (Item 12, WP 0235 00).
All wires, parts, and soldering gun (Item 30, WP 0236 00) must be tinned for good connection and maximum transfer of
heat.
2.
To prevent overheating damage to electrical parts when soldering and unsoldering connections, hold bare wire, lead or
terminal lug close to soldering point with long roundnose pliers. Pliers act as heat sink and absorb excess heat.
3.
Clean all solder joints with a scrub brush and electrical parts with detergent (Item 11, WP 0235 00) after soldering to get
a bright, clean surface.
HEAT SHRINKABLE TUBING
NOTE
Further information on shrink wrap usage and sources of supply can be found in WP 0119 00.
Use heat shrinkable tubing to insulate soldered and crimped electrical connections as follows:
a.
Cut desired length of new heat shrinkable tubing twice the diameter of the connection to be covered.
b.
Slide the heat shrinkable tubing onto the wire and out of the way before making electrical connection.
c.
After making electrical connection, slide heat shrinkable tubing into place over electrical connection.
WARNING
DO NOT touch heat shrinkable tubing for at least 30 seconds after heating. Heat shrinkable tubing is hot and
will burn you.
d.
Hold heat gun (Item 16, WP 0236 00) 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.
ELECTRICAL GROUND POINTS
Many electrical problems are the result of poor ground connections. You can ensure that ground connections are good
by performing the following steps:
