Plug connections

(3) The three conductor circuits vary considerably in design.

But

all are similar as far as inspection is concerned.

Some have on the

receptacle shell a small lever which must be depressed in order to pull the

plug from the receptacle.

(4) Other types have a small knurled knob on the shell of the plug

which must be depressed. When connecting the plug to the receptacle ensure

that it is properly placed in the receptacle, then when pressure is applied,

a pin springs up through a hole in the receptacle and locks the two parts

together.

3.

Plug connections that are made inside the shell require removal of the

shell for inspection. In some cases, the shell and plug are both threaded

and may simply be unscrewed. Others are held together by clamps and screws.

Some cable conductors are soldered to the pins, others are held by screws on

a pin lug.

a. Check the connections to the pins for looseness, corrosion dirt,

faulty insulation, broken wires, or bent pins.

Check the plug body for

damage, and dirt. Check the shell for dents, cracks and dirt.

b. When the assembly is taken apart, clean everything with a cloth and

cleaning fluid.

38