Cessna 510 Mustang Structural Repair Manual page 101

NOTE:
(2) Power level:
CAUTION: Higher power level settings may damage honeycomb structure.
(a) Monitor the power level of the fast (compensation) bank of the EDR unit at 50 percent of the power level of the
slow (output) bank using a certified oscilloscope. This will assure that the automatic adjustments of the
equipment are functioning properly.
(3) Charge:
(a) Charge the slow (output) bank and fast (compensation) bank of the EDR by simultaneously depressing the two
red charge buttons. When the charging buttons are depressed, two red charging light indicators are illuminated.
(b) Full charge of the slow and fast banks is indicated when the charging light begins to blink and the green light
marked "Ready to Fire" is illuminated.
NOTE:
(4) Flux Concentrator Coil:
WARNING: A full face shield must be worn by the flux concentrator coil holder and all personnel within
(a) Center the flux concentrator coil of the EDR over the plastic film target.
(5) Output:
(a) Set the output setting on the flux concentrator coil handle at 200 volts for bonded honeycomb structures, and at
300 volts for single sheet material for the initial cycle.
(b) If at the conclusion of two successive cycles the depth of the dent is not reduced by at least 0.003 inch (mm),
increase the voltage setting in 25-volt increments until material movement is apparent and the dent is removed.
(c) Maximum voltage is 250 volts for bonded honeycomb structures, and a maximum voltage setting of 450 volts for
dents in a single sheet structure.
(6) Energizing Cycle:
(a) Energize the forming impulse cycle by pressing the two red "Fire" buttons.
NOTE:
(7) Repositioning:
CAUTION: Attempting repair in or near the center of the dent will result in a wrinkled surface or a surface
(a) Reposition the plastic targeting films and the flux concentrator coil along the outer periphery of the dent at the
conclusion of each forming impulse cycle.
(b) The plastic targeting films shall be moved a minimum of 0.50 inch (13 mm) from the approximate center of the
area just formed.
(c) Continue this procedure until the dent is removed.
(8) Resonance Dampening:
(a) Employ resonance dampening as an aid to dent removal, if material movement is not apparent after two
successive cycles at 100 percent of output power.
CAUTION: Gloves must be worn when handling forming bars.
1 Shot bags or forming bars shall be placed on the convex surface of the dent when access is available.
CAUTION: Because of the effectiveness of the vacuum blanket in reducing resonance, hence
2 Place shot bags or vacuum blankets adjacent to the flux concentrator coil face when only the concave
surface is exposed.
3 With resonance dampening in place, repeat process of repair.
(9) Flux Concentrator Coil Temperature:
Copyright © Textron Aviation Inc.
Retain printed data for historical reference only. For future maintenance, use only current data.
The two plastic films must be taped together.
It is necessary to depress the charging buttons before each shot because the unit does
not automatically recharge
four feet of the coil.
A sharp sound will be heard at the end of the pulling cycle.
condition which cannot be repaired.
increasing the EDR pulling power, over-pulling damage can result. For this reason, the
vacuum blanket is used sparingly and never used on skins with a thickness of less than
0.032 inches (0.81 mm).
FOR TRAINING PURPOSES ONLY
ISSUE 02 , JAN 2018
Model 510 Structural Repair Manual (Rev 2)
51-72-00-2 (Original Issue)
Print Date: Wed Mar 21 05:12:26 CDT 2018
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