With angular soft foot, the base of the foot is at an angle to its foundation and they are only
partly in contact. In this case, suspect foot is checked with a feeler gauge and corrected by
building a custom ‘shim wedge’ or machining the underside of the foot.
Checking and correcting soft foot conditions
The three main types are parallel soft foot, angular soft foot, and induced soft foot. There are
instances where the soft foot is a combination of two or more types.
Checking for soft foot is part of machine and job preparation.
Note
The machine(s) to be checked is/are assumed to have four feet in an approximately
square formation. If the machine has six feet, it is advisable to leave the middle feet
loose and treat the machine as a four-footed machine. Soft foot is measured only on
machine designated as movable.
SHAFTALIGNtouch 95
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