Gen II User Manual
7-9 – Main Rotor Track & Balance Chapter 7 Revision 3.00, Apr 2020
The “M/R Adj Symbol & Soln Logic” screen appears as shown. This screen is used to establish
the direction of move for a positive adjustment as determined by the charts. For example, if the
selection of “Sweep (AFT)” is made, when the analyzer gives an adjustment for blade sweep to
move a blade “4 flats”, the actual movement of the blade is 4 flats aft. A movement of this same
blade forward would be a negative move (-4.0 flats). Look at the polar charts you are using to
determine the primary direction of move according to the chart. Use the [] or [] keys to select
the field and the [] or [] key to select the option for each of the movement types.
Weight: Weight adjustments should always be entered as the addition of weight.
Sweep: Select “FWD” or “AFT” for the direction of blade movement if adjusting lateral
balance using sweep in accordance with a polar chart. If the aircraft does not utilize
blade sweep for lateral balance, this field is not applicable.
Blade: Select “UP” or “DOWN” for the direction of blade movement if adjusting pitch
change links in accordance with a polar chart.
Tab: Select “UP” or “DOWN” for the direction of blade movement if adjusting trim tabs in
accordance with a polar chart.
Soln: Used to choose the logic in how you prefer to have the solutions presented.
Analyzers with App Version Service Pack 1 thru Service Pack 4*
The two solution options are “Max” and “All”.
“Max”, the analyzer will present the solution for the highest vibration reading
attained for the vertical and lateral sensors.
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