Section 12 — Balancing Walkthrough
241
Step 5 — Perform Trim Balancing
To perform trim balancing:
1. Replace safety covers,
2. Start the machine again.
3. Let the rotor settle to its normal operating speed.
4. Press to take a trim reading — After a few seconds, the
instrument displays the vibration level with the imbalance corrected.
5. Press to accept this measurement — The instrument displays
the details of the additional weight adjustments required to trim
balance the rotor (i.e. to further reduce the level of
vibration/imbalance). You can end balancing at this point or
continue with another reposition of trim balance weights (as
indicated) to improve on the balance level. Repeat trim balancing
until you are satisfied with the results.
Taking a trim reading
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