In the last issue, we go over about shaft seals and how liquid
is prevented from coming out from the pump real estate even though
the shaft coupling is rotating.

Some mechanised seals are produced to really good tolerances. Damage
to mechanised seals and bearings can occasionally be cause by the
misalignment of pump shaft using the engine shaft.

Whenever some inside the motors or driven machinery is dismantled
or even once the models are not operating smoothly, alignment
has to acquire done.

The goal of alignment can be to make sure how the centerline of
the engine rotor shaft coincides precisely using the centerline of
the driven machinery. Alignment is very vital that you ensure that the
machine runs smoothly with minimal vibration.

Provided the two shafts are not bent crooked, the two alignments
to be checked and adjusted are: Offset alignment and Angular
alignment.

Most alignments are tough alignment that could be carried out using
straight borders ruler and feeler gages. nevertheless for precision
alignment, using dial gauges with magnetic bases can be
used.

Offset Alignment

The radial alignment is checked utilizing a straight borders ruler. By
placing the ruler throughout the coupling halves on the top, bottom
and equally sides any gaps in between the two coupling halves will
indicate how the shaft is offset slightly. The misalignment can
be corrected by shifting the engine or by placing shims to raise
up the engine or driven machine.

Angular alignment

By inserting a feeler appraise in between the coupling faces and rotate
both coupling halves simultaneously we are able to look at no issue whether the
shafts have any angular displacement in between them. The feeler
gauge readings at checked at 4 factors inside the shaft coupling.
Again the alignment is corrected by shimming or shifting the
machinery.

The engine on top of that to the driven system must acquire bolted solidly to the
base shortly after finalizing the alignment positions inside the equipment.