TM 55-2840-231-236-5. Gas Producer Fuel Control - Rigging Check - ContinuedAIRFRAME/-Continued2. AIRFRAME.a. Start with the twistgrip at the full openposition then rotate gripslowly to the IDLEposition, Pointer must beat the 30 degree mark.b. Start with the twistgrip at the full closedposition then rotate gripslowly to the IDLEposition. The pointermust be no more than5/64 in. below the 30degree mark. If thepointer is more than 5/64in. below the 30 degreemark, rerig the aircraftlinkage to move thepointer closer to the 30degree mark.NOTEMake rigging adjustments using thepilot’s twist grip. If the copilot’scollective is installed, recheck thelinkage movement using the copilot’stwist grip. The pointer in IDLEposition, using the copilot’s twist grip,must be within 5/64 inch of the 30degree position when rotated fromthe full open or full closed positionand idle speed must be no lower thanidle speed obtained using the pilot’stwist grip. An engine performancecheck is required when riggingadjustment has been performed.6-6Change 11
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