USE/CARE OF HANDTOOLS & MEASURING TOOLS - OD1621 - LESSON 2/TASK 1
(d) Quench the red-hot tip into cold water to anneal it.
(e) Polish the face of the tip with a fine file so that subsequent
tinning will last longer.
(f) Heat the tip so it will just melt solder.
Wipe tip clean.
(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
(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.
(a) Clean and shape the point by filing and tin the tip.
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.
(c) A blown fuse in the power circuit when the plug of a soldering
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
Grinders are devices designed to mount abrasive wheels
that will wear away other materials to varying degrees.
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.