TM 10-4320-307-24
3-7
FLEXIBLE COUPLING INSPECT/ALIGN/REPAIR/REPLACE(CONT).
c.
Install dial indicator and magnetic base (4)
placing magnetic base on speed increaser side
hub (2).
NOTE
The feeler position on the pump side hub (1)
should be approximately on the coupling
flange thickness center line.
d.
With dial gauge positioned at the top, zero
the gauge.
e.
Rotate speed increaser half coupling slowly
in operating direction.
f.
Record dial indicator readings at 0, 90, 180,
270, and 360 degrees.
NOTE
If LO is not equal to L360, the dial gage
has moved or is in need of calibration.
Replace if necessary and take another set
of readings.
The
maximum
difference
between
opposite headings (LO-L180 or L90-
L270) corresponds to the L value or lateral
misalignment.
3-15
