GRISWOLD PUMP COMPANY Installation Page 12
Installation, Operation and Maintenance Manual
Griswold Model 811
Griswold Pump Company Installation Page 14
Alignment with Straight Edge and Micrometer
The dial indicator method is preferred for checking alignment
Dial Indicator Method
With coupling hubs stationary, use inside micrometer
or calipers to measure the gap between the coupling
hubs at 90
0
intervals. Adjust and/or shim equipment
until the gap difference at all points around the
hub(s) is less than the value shown in Table 1 page
13.
With coupling hubs stationary, lay straight edge flat
against
rim of coupling hub to determine vertical and
horizontal alignment offsets. Adjust and/or shim
equipment until the straight edge lies flat against both
hub rims, vertical and horizontal.
Scribe or mark index lines on both
coupling hubs to indicate where the
dial indicator point rests.
2. Set dial indicator to zero.
3. Slowly turn BOTH coupling hubs so
that the index lines match or the
indicator point is always on the mark.
4. Observe dial reading to determine
required adjustments.
5. Acceptable parallel and angular
alignment occurs when the total
indicator reading (TIR) for a complete
turn does not exceed the values shown
in Table 1 page 13.
FIGURE 8
ANGULAR ALIGNMENT
FIGURE 9
PARALLEL ALIGNMENT
FIGURE 10
DIAL INICATOR SETUP
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