Reconditioning Electric Soldering Iron.

Use And Care Of Handtools And Measuring Tools
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(g) Place a few drops of solder on a bar of ammonium chloride (sal

ammoniac) and rub the tip into melted solder and on the bar until the tip is

tinned.

(h) Clean the tinned tip each time it is removed from the flame or

source of heat. When pits form on the tip, heat the tip and dip it in water

to remove the scale.

(2) Reconditioning Electric Soldering Iron.

(a) Clean and shape the point by filing and tin the tip.

Do not

use an external source of heat and do not quench the tip in water.

(b) If an iron does not heat with the plug connected into the

power outlet, an open circuit is indicated in the plug, cord, or heater

element. Inspect the cord for breaks, and the plug for bent prongs. Feel

along the wire for breaks inside the insulation. If an open circuit cannot

be found, disconnect the cord from the handle and test the cord and heater

element separately with a test lamp. Replace faulty parts.

iron is connected indicates a short circuit.

Inspect the plug for loose

wire ends and the cord for damaged insulation.

Test the cord, plug, and

heater element separately with a test lamp.

Correct faults and replace

faulty parts.

10.

Grinders and Sharpening Stones

a. Purpose.

Grinders are devices designed to mount abrasive wheels

that will wear away other materials to varying degrees.

Special grinders

are designed to receive engine valves.

Sharpening stones are used for

whetting or final sharpening of sharp edged tools that have been ground to

shape or to a fine point on a grinder.