Aircraft Magneto Service
500 Hour Inspection Details
10-51360-37 Bendix Magneto, S20 Series, Impulse Coupled
10-500556-1 Bendix Magneto, Short Cover, O-470 Magneto, Impulse Coupled
10-600614-1 Bendix Magneto, Robinson R22 Magneto, Short Cover, S200 Series
10-51360-37 Bendix Magneto, S20 Series, Impulse Coupled
Bendix S20/ S200 Series Mags
Comply with ALL ADs, and Service Bulletins
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Measure endplay of bearings (.000 to maximum of .002)
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complete dissassembly of the mag.
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housings checked for cracks, spun bearings, pulled threads
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distributor block and breaker cam oil bathed in 10-400550 oil at 200 degrees for 3 hours (early style blocks that require a water proof dip are automatically changed since dip is no longer produced)
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replace all distributor block felt packing
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oil felt washer with 10-400550 oil
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coil measured .5 ohms primary/ 15k ohms secondary
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coil clamps must have half moon or FAA/PMA mark
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Impulse Coupling Cam check for loose washers/ rivets and measure axial to flyweight (.014 Max)
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inspect distibutor gear for wear, discoloration, loose washers/ electrode finger, measure distance shaft to finger. Change out all capture washer distibutor gears per SB-658.
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replace capacitor.
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replace contacts
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clean and inspect bearings
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recharge rotor
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replace all hardware, oil seal, slinger
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time and test run hot
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Bendix S1200 Series Mags
Comply with ALL ADs, and Service Bulletins
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complete dissassembly of the mag.
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housings checked for cracks, spun bearings, pulled threads
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distributor block and breaker cam oil bathed in 10-400550 oil at 200 degrees for 3 hours (early style blocks that require a water proof dip are automatically changed since dip is no longer produced)
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replace all distributor block felt packing
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oil felt washer with 10-400550 oil
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coil measured .5 ohms primary/ 15k ohms secondary
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inspect distibutor gear for wear, discoloration, loose washers/ electrode finger, per SB-658.
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Impluse Coupling Cam check for loose washers. rivets and measure axial to flyweight (.014 Max)
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replace capacitor.
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replace contacts.
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replace bearings.
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recharge rotor.
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replace all hardware, slinger, snap rings
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time and test run hot
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Slick 4300/6300 Series
Comply with all ADs, and Service Bulletins
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Complete disassembly of the magneto
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Parts change included with inspection- contacts/cam/rotor gear/bearings/oil seal/carbon brush/hardware.
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The remaining parts are inspected for wear, damage and their ability to function to spec/manufacturer requirements, and replaced if needed.
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Clean and inspect housings for cracks, spun bearings, and pulled threads
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Oil bath distributor block and support bracket
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Recharge rotor magnet.
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Test run HOT.
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Average cost $400-$450 (labor and included parts)
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Inspections come with a 500 hour warranty
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4200 and 6200 series slicks, call for options.
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**For Complete details, procedures, tools, test equiptment and parts refer to your OEM master service manuals**
The above text is a brief summery of the 500 hour inpection