UAV-1003947-001, AV-30-C, Installation Manual
45
Rev E
Figure 25 - Vibe Monitor Operation
5. Perform an engine run-up, slowly increase engine power from idle to full
and back to idle.
6. Record the peak values observed for both the Accelerometer and
Gyroscope.
Peak values for the Accelerometer should not exceed
110
, and for the
Gyroscope should not exceed
40
. If excessive values are observed, vibration
must be mitigated to ensure expected performance. Consider the following:
•
Ensure proper propeller balance. Perform dynamic propeller balancing.
•
Replace worn engine mounts and address causes of high engine
vibration.
•
Ensure the AV-30-C is not mounted in a location subject to high
vibration. This can often be detected by placing your hand on various
locations in the panel, and can be caused by poorly supported panel
regions, adjacent equipment, or proximity to engine structure.
•
On isolated panels, replace the grommets; concurrently, ensure
isolated panels have a ground strap.
•
Ensure all mounting hardware is firmly attached.
•
Check for rub marks on the AV-30-C case.
•
Ensure connectors are firmly attached, and all cabling is firmly
supported and not causing undue flex. The cabling must not be hitting
or close to a moving surface (e.g. control yoke).
