BLACKMER IOM E Series, Инструкция по установке, эксплуатации и обслуживанию, Страница: 17 / 52

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Alignment must be done at several different times:
1. Prior to grouting baseplate during installation
2. After grouting baseplate and tightening anchor bolts
3. After attaching suction and discharge piping prior to initial operation
4. Hot alignment after equipment temperatures have stabilized
5. After pump maintenance bearing housing is removed
Since the E Series pump is foot-mounted, its shaft centerline will rise when handling pumpage at elevated temperatures. Similarly,
the motor shaft centerline will rise as it reaches its operating temperature. Therefore, we will often purposely misalign shafts vertically
during cold alignment to allow for thermal growth, thus bringing the shafts into alignment at operating temperature. This is shown in
the “COLD SETTING OF PARALLEL VERTICAL ALIGNMENT” table.
The most simple alignment check is with a straight edge and calipers or inside micrometer. This method is the least accurate, but it
will serve if a dial indicator or laser is not available.
ALIGNMENT WITH STRAIGHT EDGE AND MICROMETER
ANGULAR ALIGNMENT PARALLEL MISALIGNMENT
With coupling hubs stationary, use inside micrometer or calipers to measure the gap between the coupling hubs at 90° intervals.
Adjust and/or shim equipment until the gap difference at all points around the hub(s) is less than the value shown in the
“MISALIGNMENT LIMITS” table.
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.
DIAL INDICATOR METHOD
DIAL INDICATOR SETUP
The dial indicator method is preferred for checking alignment.
1. 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 the “MISALIGNMENT LIMITS” table.