Propeller Balancing
Vibrex 2000 and Vibrex 2000 Plus User Guide 77
4. Go on to the next Balance Propeller Setup screen and enter the
necessary information, in the same way as the user would for the
Vibrex 2000.
5. When the user is ready to begin propeller balancing, press
START. A
screen displays, with a message asking the user to operate the
propeller. This is the same screen and message displayed by the
Vibrex 2000. See Section 5.4.2 “Acquiring Balance Readings” on
page 77 for details.
6. Proceed with running the propeller and acquiring balance readings, in
the same way as the user would for the Vibrex 2000.
7. When the user has finished balancing the current propeller, begin the
operation for the next propeller, in the same way as the user did for
the previous one. Make sure to enter the number of the propeller in
the Enter Aircraft ID screen.
8. Finish balancing each propeller (up to four) in the same way as the
user did the first.
NOTE: The user may enter numbers one through nine, but we
recommend using the conventional numbering, that is, No. 1 being
the farthest left engine and Nos. 2, 3, and 4 for the farthest right
engine. Up to four engine balances can be run concurrently, using
the Vibrex 2000 Plus.
5.4.2 Acquiring Balance Readings
Acquire balance readings and measurements, as follows:
1. Do a normal engine start and allow the engine to warm up, then
• On constant-speed propellers, cycle the propeller twice to be sure
the air is purged from the propeller hub.
• On fixed-pitch propellers, run the propeller at the maximum static
revolutions per minute (RPM).
2. Operate the propeller at the desired RPM (shown live on the Vibrex
unit’s display).
3. Press
START.
The Vibrex unit collects IPS-reading and phase data/measurements.
During this process, a temporary Data Collection screen displays.
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