User's Manual

9.10 One-run balance job
A one-run balance job, also called trim balancing, lets you use a balance job and its
reference run, trial run, and balance correction to balance the same or similar equipment.
After equipment is successfully balanced, transfer the balance job to AMS Machinery
Manager for storage. Load the job into the analyzer to balance the equipment again at a
later date. Make sure you assign a new Job ID.
A one-run balance job has the following steps:
1.
Load a balance job into the analyzer from AMS Machinery Manager.
2. Activate the job.
3. View the balance correction.
4. Acquire trim run data, without applying or removing weight.
5. View the trim correction.
6. Proceed with the normal balancing procedure. Continue collecting and reviewing
data until the machine is within the balance specification.
For summary reports, the analyzer uses one-run balance data differently than normal data.
Because a one-run job uses the reference run and trial run data from a previous job, the
analyzer lists the first trim run as the initial magnitude and the last trim run as the final
magnitude.
Note
Be careful when using stored balance data. Place the tachometer and sensors at the same positions
when you collected the reference run and trial run data. If the equipment has significant physical
changes, stored influence coefficients may be invalid. You may need to collect new reference run
and trial run data.
What to do if the one-run balance does not work
A one-run balance may not work due to changes in the equipment response since the
previous balance. Changes in technique or equipment can also cause problems. You have
the following options:
• Begin a new balance job by acquiring new reference and trial run data.
• If you placed a trim weight in only one plane, use the first data acquired for the
reference data. The trim data you acquired after placing the trim weight may be
used as a trial run. Use Review/Edit data to enter this data into the reference and trial
run fields. Collect any remaining trial runs needed and calculate a new balance
correction.
• If you placed trim weights in multiple planes and received an unsatisfactory result,
use the trim runs as the reference data and collect new trial run data.
Balance
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