Tubing and Fittings - TM-5-4120-273-150059

TM 5-4120-273-15

each end and tape these ends with electrical tape.

probes of a multimeter to each end of the wire. If

Install a new wire and attach it to the outside. of

continuity is not indicated, the wire is defective

the wiring harness.

and must be repaired or replaced.

d. Repair. Remove the insulation on the wire

5-23. Tubing and Fittings

to expose one-half inch of bard wire at both ends

The refrigerant piping used on the air condition-

of the break. Twist bare wire together and solder

ing units consists of copper tubing and necessary

the connection. Cover the repaired break with

fittings. Joints of refrigeration pipes and fittings

electrical tape and friction tape. Do not leave any

are soldered. Inspect the piping and fittings for

bare wire exposed. If a terminal lug breaks off a

cracks and breaks (para 3-45b). Replace defective

wire, replace it, using an exact duplicate terminal

lug.

pipes with those of the same length, size, shape,

and material. When soldering or unsoldering

e. Replacement. Replace a wire by disconnect-

items such as the thermostatic expansion valves or

ing it from the component or components and re-

solenoid valves, disassemble the valve and wrap

move the wire. Install a new wire and connect it

valve body with a damp cloth to protect it from

to the component or components. If a broken wire

damage by heat.

is part of a wiring harness, disconnect the wire at

5-5