TM 1-6625-724-13&P0071 000071 00-23TASK 3 - TRACK AND BALANCE MAIN ROTOR IN FLIGHTc. Examines the default corrections given:1. If only pitch link moves are given, do procedure 3.2.1.1.2. If pitch link and tab moves are given, do procedure 3.2.1.2.3. If only tab moves are given, record the recommended adjustments. Do procedure 4.PROCEDURE 3.2.1.1 Vertical < 0.6 ips AND lateral in limits AND only P/L have been given. a. Press QUIT.b. Use the cursor to select View Predictions, press DO.c. Examine and make note of the predicted vibration levels for the pitch link only moves. Press QUIT.d. Use the cursor to select Edit Adjustables, press DO.e. Turn off all four pitch links.f. Turn on all four 8-10 tabs.g. Press DO to calculate and display 8-10 tab adjustments. NOTEIf any blade shows an 8-10 tab adjustment of 2 degreesor more, it is recommended to Edit Adjustables to turnoff the 2 degree or greater 8-10 tab region and turn onthe 6-10 tab region for that blade, then recompute theadjustment. h. Note the tab adjustments given. Press QUIT.i. Select View Predictions and examine and make note of the predicted vibration levels for the tab only solution. j. Compare the predictions of the tab only solution to those of the pitch link only solution. Select either the pitch linkonly or the tab only solution, based on the effectiveness (predictions) as well as the simplicity of the adjustmentset.k. Record the selected adjustments set. Add any required autorotation pitch link adjustments to the adjustment set.l. Do procedure 4.PROCEDURE 3.2.1.2 Vertical < 0.6 ips AND lateral in limits AND P/L and tabs have been given. a. Press QUIT.b. Select View Predictions and examine and note the predicted vibration levels for the pitch link and tab solution.c. Use the cursor to select Edit Adjustables, press DO.d. Turn all four pitch links from Y to N (No or off).e. Press DO to calculate and display tab adjustments. NOTEIf any blade shows a 6-10 or 8-10 tab adjustment of 2degrees or more, it is recommended to Edit Adjustablesto turn off the 2 degree or greater 6-10 or 8-10 tabregion and turn on the next larger tab region for thatblade, then recompute the adjustment. For example, ifthe AVA solution calls for a 2 degree bend in pockets 6-10 on Blade 1, use Edit Adjustables to turn off the Blade1 6-10 tab and turn on Blade 1 4-10 tab and recomputethe adjustments.f. Press QUIT. Select View Predictions and examine and note the predicted vibration levels for the pitch link andtab solution.
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