● Compression screw : the means of setting up
compression on the pile and compensating for
erosion of the pile during its life.
● Spring plate and armature : this compresses the
pile to its minimum resistance position.
● Voltage coil: contains a large number of turns
of copper wire and, with the core screw, forms
an electromagnet when connected across the
generator output.
● Magnet core : concentrates the coil fl ux; it is also
used for voltage adjustment during servicing.
● Bi-metallic washers : providing temperature
compensation.