Garmin GFC 600H Maintenance Manual
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Garmin GFC 600H Maintenance Manual

Garmin GFC 600H Maintenance Manual

Stc system for the bell 505
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GFC 600H
Bell 505
STC System Maintenance Manual
Contains Instructions for Continued Airworthiness
Rotorcraft Make, Model, Registration Number, and Serial
Number and accompanying STC configuration information in
Appendix A must be completed and retained with rotorcraft
permanent records.
190-02081-08
August 2023
Revision 4

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  • Page 1 GFC 600H Bell 505 STC System Maintenance Manual Contains Instructions for Continued Airworthiness Rotorcraft Make, Model, Registration Number, and Serial Number and accompanying STC configuration information in Appendix A must be completed and retained with rotorcraft permanent records. 190-02081-08 August 2023...
  • Page 2 Garmin. Garmin hereby grants permission to download a single copy of this manual and of any revision to this manual onto a hard drive or other electronic storage medium to be viewed and to...
  • Page 3 Agreement (hereinafter the “Agreement”) and is subject to the following terms and conditions that are agreed to by End User (“Licensee”, “you”, or “your”), on the one hand, and Garmin and its licensors and affiliated companies of Garmin and its licensors, on the other hand. The Licensed Software is licensed, not sold, to you.
  • Page 4 “as is” and “as available” with no warranties, guarantees or representations and neither Garmin nor its affiliates make any representation, warranty or guarantee, statutory or otherwise, under law or from the course of dealing or usage of trade,...
  • Page 5 Garmin be liable to licensee for an amount in excess of USD $100, or be liable in any amount for any special, incidental, consequential,...
  • Page 6 Entire Agreement. This Agreement shall constitute the entire agreement between Garmin and you with respect to the subject matter hereof and will supersede all prior negotiations, agreements and understandings of Garmin and you of any nature, whether oral or written, with respect to such subject matter.
  • Page 7 Section Description Added instructions to download logs. Added Table 5-1 Bell 505 GFC 600H LRUs Weight and Table 5-2 Bell 505 GFC 600H PMA Parts Weight. Corrected Bell connector designation. Updated procedure for Cyclic Stick and Grip Assembly, Copilot Removal.
  • Page 8 All information depicted in screen shots, including software file names, versions, and part numbers, is subject to change and may not be up to date. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page vii...

  • Page 9: Table Of Contents

    7 RETURN-TO-SERVICE ....................7-1 Installation Checks ........................7-2 Normal Mode Checks ........................7-3 Documentation Checks ......................7-14 APPENDIX A INSTALLATION-SPECIFIC INFORMATION ........A-1 A.1 General Installation Information ....................A-2 A.2 Interfaced Equipment .......................A-3 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page viii...
  • Page 10 GFS 83 (-14) Connector 3P831 (View from Front) ............4-15 Figure 4-5 Collective Position Sensor Connector ................4-16 Figure 5-1 Location of GFC 600H FCS System Components .............5-2 Figure 5-2 Location of Optional Access Panel in Cabin Floor ............5-3 Figure 5-3 GMC 605H Installation ......................5-5 Figure 5-4 GMC 605H Configuration Module Installation ..............5-7...
  • Page 11 Table 4-11 G2200P600 Pin Assignments .....................4-16 Table 5-1 Bell 505 GFC 600H LRUs Weight ..................5-4 Table 5-2 Bell 505 GFC 600H PMA Parts Weight ................5-4 Table 5-3 Post-Maintenance Required Actions ..................5-35 Table 6-1 Software, Configuration, and Calibration Log ..............6-2 Table 6-2 GMC 605H SYS >...
  • Page 12 1 INTRODUCTION Purpose..............................1-2 Scope..............................1-2 Applicability .............................1-2 Revision and Distribution .........................1-2 Terminology............................1-3 Reference Documents ........................1-7 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 1-1...

  • Page 13: Purpose

    1.1 Purpose This document is designed for use by the installing agency of the Garmin GFC 600H Flight Control System (FCS) as a Maintenance Manual (MM) and Instructions for Continued Airworthiness (ICA) to satisfy the requirements for continued airworthiness as defined by 14 CFR Part 27.1529 and 14 CFR Part 27 Appendix A.

  • Page 14: Terminology

    Electronic Stability Protection (also H-ESP, Helicopter – ESP) Federal Aviation Administration Federal Aviation Regulation Flight Control System FCS DISC Flight Control System Disconnect Flight Director Feet Force Trim Release 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 1-3...
  • Page 15 Lateral (modes) Light Emitting Diode LMTQ Limit Cue Localizer LOWSPEED Low Speed Protection – H-ESP mode Line Replaceable Unit Level Mode MAXSPEED Overspeed Protection – H-ESP mode Minimum 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 1-4...
  • Page 16 Supplemental Type Certificate Software System Type Certificate TCDS Type Certificate Data Sheet Technical Standard Order Universal Serial Bus VAPP VOR Approach Volts (Direct Current) VERT Vertical (modes) Visual Flight Rules 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 1-5...
  • Page 17 Very High Frequency VLOC VOR/Localizer Never Exceed Velocity VNAV Vertical Navigation VHF Omni-directional Range Vertical Speed or Vertical Speed mode WAAS Wide Area Augmentation System 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 1-6...

  • Page 18: Reference Documents

    In addition to this manual, the following documents are recommended for performing maintenance on the GFC 600H FCS. It is the responsibility of the owner/operator to ensure the latest applicable versions of these documents are used during operation, servicing, or maintenance of the GFC 600H FCS.

  • Page 19: System Overview

    Sensors ..............................2-7 2.4.1 Attitude and Heading Reference System (AHRS) ..............2-7 2.4.2 Air Data ............................2-7 2.4.3 GPS / SBAS ..........................2-8 2.4.4 Audio Output..........................2-8 2.4.5 Collective Position Sensor ......................2-8 Switches ............................2-9 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 2-1...

  • Page 20: System Description

    The GFC 600H is considered a “fly-through” autopilot that is intended to be on at all times to provide operational benefit throughout all flight regimes. However, the helicopter may be operated with the system disengaged.
  • Page 21 This feature is available for engagement within the attitude limits specified in the RFMS. Yaw Control (Optional) - The yaw axis is an option for the GFC 600H system. The yaw axis provides a number of benefits in both cruise and hover. In cruise, the yaw control provides yaw damping functionality.

  • Page 22: Figure 2-1 System Block Diagram

    GFS 83 (-12) Required with Yaw Option: Roll Servo  YAW ON/OFF  YAW TRIM (Ref Hat-Switch) GFS 83 (-14) Yaw Servo (Optional) Figure 2-1 System Block Diagram 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 2-4...

  • Page 23: Gmc 605H Afcs Mode Controller

    LRUs in the aircraft. The GMC 605H provides commands to the GFS 83 servos. The mode controller is also the maintenance interface for software updates and configuration of the GFC 600H via a micro-USB port located on the front panel of the bezel.

  • Page 24: Gfs 83 Force Trim Servo

    This STC installs two GFS 83 servos (pitch and roll) and provides the option for installation of the third (yaw). The pitch and roll servos (Garmin P/N 011-03367-12) and yaw servo (Garmin P/N 011-03367-14) contain a brushless DC motor with a geared drive and shear fuse mechanism between the servo hub and output arm.

  • Page 25: Sensors

    2.4.2 Air Data The GFC 600H requires one air data source for AHRS aiding and air data thresholds for various flight control modes. The GMC 605H shares the GSU 75H air data source with the GIFD system. Due to variability in flight performance across the airspeed and altitude envelope for rotorcraft, air data is used as a secondary control input.

  • Page 26: Figure 2-4 Collective Position Sensor

    The GMC 605H can use a VHF or GPS navigation input to follow course deviation for course tracking. The GIA provides source selection and sensor selection for the navigation interface. Navigation data is sourced over the GIA ARINC 429 interface to the GMC 605H. The GFC 600H can couple to the following navigation sources: •...

  • Page 27: Switches

    2.5 Switches In addition to GMC 605H mode controller, the GFC 600H system includes cyclic and collective control mounted switches. The Rotorcraft Flight Manual Supplement (RFMS) and the Pilot’s Guide include detailed descriptions of switch functions and operation. The GFC 600H wiring harness in the co-pilot cyclic control is disconnected by removing the SLS-030- 209-007 Forward Belly Panel or through the access hole in the cabin floor.

  • Page 28: Instructions For Continued Airworthiness

    Earth Magnetic Field Updates ......................3-9 Servo Arm Torque Check .......................3-10 This section provides Instructions for Continued Airworthiness of the GFC 600H FCS as installed under STC SR01961WI and satisfies the requirements for continued airworthiness as defined by 14 CFR Part 27.1529 and Part 27 Appendix A.

  • Page 30: Servicing Information

    3.2 Servicing Information Servicing of the GFC 600H FCS equipment is “on-condition”. In the event of system or LRU failure, troubleshoot the GFC 600H FCS in accordance with Section 4. Refer to Section 5 for equipment removal and re-installation. No component-level overhaul is required.

  • Page 31: Maintenance Intervals

    Every 150 flight hours or 12 months Servo Arm Perform a servo arm torque After equipment removal and/or Torque Check check per Section 3.8. replacement per Section 5, whichever occurs first. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 3-4...

  • Page 32: Visual Inspection

    Continued operation of the GFC 600H FCS is not permitted unless an inspection detailed in this section has been completed at the interval defined in Table 3-1. The following visual inspection of the GFC 600H FCS LRUs, equipment, and associated wiring harnesses is required to ensure airworthiness: 1.

  • Page 33: Lightning Strike

    After a suspected or actual lightning strike to the rotorcraft, the following actions must be performed: 1. Visually inspect all GFC 600H FCS bonding components (i.e., bonding straps, fasteners, and unit support structure) for damage. Replace damaged components in accordance with specifications and procedures in Section 5.

  • Page 34: Electrical Bonding Check

    For new equipment specified in Table 3-3, brackets and equipment installed using bolts or screws require surface preparation to make a sufficient bond. Electrical bonding preparation examples are shown in Figure 3-1. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 3-7...

  • Page 35: Figure 3-1 Electrical Bonding Preparation For Bolts And Screws

    Commercial Products (BHT-ELEC-SPM) Chapter 8, Section 8-24. Brackets and connectors that require an electrical bond as depicted in Section 5 must have an electrical bonding as specified in Table 3-3. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 3-8...

  • Page 36: Earth Magnetic Field Updates

    A service bulletin containing the updated magnetic field model and instructions for installation can be obtained from the Dealer Resource Center or by contacting Garmin. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 3-9...

  • Page 37: Servo Arm Torque Check

    3.8 Servo Arm Torque Check Continued operation of the GFC 600H FCS is not permitted unless inspection detailed in this section has been completed at the interval defined in Table 3-1. It is required to perform the following check of the friction setting of the servo output arm of the GFS 83 servo (Garmin P/N 011-03367-12/-14) to verify the friction settings specified in Table 3-4.
  • Page 38 Reset Procedure NOTE Ensure servo output shaft is locked with the Shaft Locking Device (Garmin P/N 117-01307-00). 1. Remove the cotter pin from the castellated nut on the servo shaft and, using a ¾ inch socket, loosen the nut until the servo output arm can spin freely.

  • Page 39: Figure 3-3 Clutchless Servo Friction Adjustment

    Figure 3-3 Clutchless Servo Friction Adjustment 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 3-12...

  • Page 40: Troubleshooting

    When troubleshooting the GFC 600H FCS, refer to wire routing diagrams, plug and pin descriptions, communication port settings saved in the configuration data, and equipment locations retained in Appendix A of this document.

  • Page 41: General Troubleshooting

    Garmin for service. NOTE For cycling power of the GFC 600H system, wait until the display has completely turned off (approximately 7 seconds) after pulling the breaker before pushing back in. Table 4-1 General Troubleshooting Guide...
  • Page 42 The servo must be replaced prior to the next flight when shear fuse is broken by a pilot overcoming a servo mechanical fault. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 4-3...

  • Page 43: Gmc 605H Mode Controller

    Table 4-3 GMC 605H CAS Troubleshoot Annunciated Possible Cause Corrective Action Fault • Power cycle the GFC 600H FCS by cycling the FCS circuit breaker. • Ensure the GMC 605H, GFS 83, GSU 75H, and GMU 44 connectors are securely mated to the units.
  • Page 44 GMC 605H: have been run and passed for the GMC 605H, GFS 83, and GSU 75H/GMU 44. • Power cycle the GFC 600H FCS by cycling the FCS circuit breaker. • Ensure the GMC 605H, GFS 83, GSU 75H, and GMU 44 connectors are securely mated to the units.
  • Page 45 Annunciated Possible Cause Corrective Action Fault • Power cycle the GFC 600H FCS by cycling the FCS circuit breaker. • Ensure the GMC 605H, GFS 83, GSU 75H, and GMU 44 connectors are securely mated to the units. • Invalid attitude data (includes •...
  • Page 46 Annunciated Possible Cause Corrective Action Fault • Power cycle the GFC 600H FCS by cycling the FCS circuit breaker. • Ensure the GMC 605H, GFS 83, and collective position sensor connectors are securely mated to the units. GMC 605H: • Collective Position Sensor has •...

  • Page 47: Table 4-4 Gmc 605H Configuration Mode (Post-Install Procedures) Test Faults

    Table 4-4 GMC 605H Configuration Mode (Post-Install Procedures) Test Faults Annunciated Fault Possible Cause Corrective Action • Power cycle the GFC 600H FCS by cycling the FCS circuit breaker. • Data communications failure: TEST FAILED: GMC internal AHRS did not •...
  • Page 48 MEASUREMENT sensor data. match those retained with the rotorcraft FAILURE records (Appendix A). TEST FAILED: GPS • Power cycle the GFC 600H FCS by • The GMC is not receiving GPS MEASUREMENT cycling the FCS circuit breaker. data. FAILURE • Ensure the GMC 605H, GFS 83,...
  • Page 49 Refer to TOO LARGE Section 6.3 for required post-install procedures. • SITE DOESN’T HAVE UNIFORM MAGNETIC FIELD • SITE MAG FIELD DIFFERENT FROM IGRF MODEL 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 4-10...

  • Page 50: Connectors

    This section contains connector information and description of pin functions for all LRUs that can be installed as part of the GFC 600H Bell 505 STC. Refer to the LRU TSO Installation Manuals for more detailed signal information on each LRU.

  • Page 51: Table 4-5 P6501 Pin Assignments

    CONFIG DISC IN 18 RS-485 3A CONFIG DISC IN 2 CONFIG DISC IN 4 CONFIG DISC IN 11 CONFIG DISC IN 6 RESERVED RS-485 1A CAN LO 2 RS-485 1B 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 4-12...

  • Page 52: Table 4-6 P6502 Pin Assignments

    ANALOG 2 IN Y LIGHTING BUS LO ANALOG 2 IN X SIGNAL GROUND ANALOG 1 IN Z SIGNAL GROUND ANALOG 1 IN Y ETHERNET OUT 3B ANALOG 1 IN X 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 4-13...

  • Page 53: Figure 4-3 Gfs 83 (-12) Connector 1P831/2P831 (View From Front)

    Servo Program Pins Servo Pin 10 Pin 13 Pin 19 Function Servo Program 1 Servo Program 2 Servo Program 3 Pitch Ground Open Open Roll Open Ground Open 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 4-14...

  • Page 54: Figure 4-4 Gfs 83 (-14) Connector 3P831 (View From Front)

    Table 4-10 GFS 83 (-14) Servo Program Pins Servo Program Pins Servo Pin d Pin N Pin b Function Servo Program 1 Servo Program 2 Servo Program 3 Ground Ground Open 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 4-15...

  • Page 55: Figure 4-5 Collective Position Sensor Connector

    G2200P600. The connector contact number for the 6-pin connector is shown in Figure 4-5. Figure 4-5 Collective Position Sensor Connector Table 4-11 G2200P600 Pin Assignments Function NOT USED V_OUT V_IN SHIELD GROUND NOT USED 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 4-16...

  • Page 56: Download Logs

    2. Navigate to the DATALOGS page (SYS → DATALOGS). 3. Select the FIRST POC and LAST POC (power on cycle) to download. 4. Select DOWNLOAD. 5. Follow the on-screen instructions to complete the download. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 4-17...

  • Page 57: Equipment Maintenance

    Post-Maintenance Required Actions ....................5-35 This section provides the procedures for removal and re-installation of equipment installed under the GFC 600H Bell 505 STC. After removal and re-installation, the GFC 600H Equipment Configuration and Checkout procedures must be performed in accordance with Section 6.

  • Page 58: Figure 5-1 Location Of Gfc 600H Fcs System Components

    Location of the servos, LRUs, and switches in the GFC 600H FCS system as installed in the Bell 505 are shown in Figure 5-1. Figure 5-1 Location of GFC 600H FCS System Components 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev.

  • Page 59: Figure 5-2 Location Of Optional Access Panel In Cabin Floor

    Figure 5-2 Location of Optional Access Panel in Cabin Floor 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-3...

  • Page 60: Table 5-1 Bell 505 Gfc 600H Lrus Weight

    The weight of GFC 600H LRUs and PMA parts installed in Bell 505 is detailed in Table 5-1 and Table 5-2. Values are provided for reference only. Table 5-1 Bell 505 GFC 600H LRUs Weight Part Number Description Weight (lbs)

  • Page 61: Gmc 605H Mode Controller

    5.1 GMC 605H Mode Controller Maintenance performed as part of this section requires post-maintenance actions to be performed. Refer to Section 5.5 for required actions. Figure 5-3 GMC 605H Installation 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-5...
  • Page 62 1. Ensure power is removed from the GFC 600H FCS. 2. Insert a 3/32” hex drive tool into the access hole at the bottom of the face of the GMC 605H.

  • Page 63: Figure 5-4 Gmc 605H Configuration Module Installation

    8. Reattach to the P6052 connector to the GMC 605H backplate by installing the two screws securing it to the backplate removed in step 2. 9. Re-install the GMC 605H unit in accordance with Section 5.1.2. 10. Perform any required actions per Section 5.5 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-7...

  • Page 64: Gfs 83 Servo

    5.2 GFS 83 Servo The GFC 600H Bell 505 STC requires installation of the pitch and roll axes with an optional yaw axis. Servo locations are depicted in Figure 5-1. Maintenance performed as part of this section requires post maintenance actions to be performed. Refer to Section 5.5 for required actions.

  • Page 65: Figure 5-6 Gfs 83 Pitch Servo Installation

    Figure 5-6 GFS 83 Pitch Servo Installation 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-9...

  • Page 66: Figure 5-7 Gfs 83 Roll Servo Installation Bill Of Materials

    Figure 5-7 GFS 83 Roll Servo Installation Bill of Materials 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-10...

  • Page 67: Figure 5-8 Gfs 83 Roll Servo Installation

    Figure 5-8 GFS 83 Roll Servo Installation 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-11...

  • Page 68: Figure 5-9 Gfs 83 Yaw Servo Installation Bill Of Materials

    Figure 5-9 GFS 83 Yaw Servo Installation Bill of Materials 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-12...

  • Page 69: Figure 5-10 Gfs 83 Yaw Servo Installation

    Figure 5-10 GFS 83 Yaw Servo Installation 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-13...

  • Page 70: Figure 5-11 Servo Output Arm And Shear Fuse Installation

    (P/N 212-00123-00) on both sides of the arm (P/N 117- 01080-XX), and that the Belleville washers are stacked as depicted in Figure 5-11. Figure 5-11 Servo Output Arm and Shear Fuse Installation 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-14...

  • Page 71: Figure 5-12 Pitch Control Rod Adjustment

    All axes are connected to the airframes existing controls through a control push-rod linkage. Figure 5-12 (Pitch), Figure 5-13 (Roll), and Figure 5-14 (Yaw) show details of control push-rod alignment and installation for each axis and are referenced throughout the procedures in this section. Figure 5-12 Pitch Control Rod Adjustment 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-15...

  • Page 72: Figure 5-13 Roll Control Rod Adjustment

    Figure 5-13 Roll Control Rod Adjustment 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-16...

  • Page 73: Figure 5-14 Yaw Control Rod Adjustment

    Figure 5-14 Yaw Control Rod Adjustment 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-17...
  • Page 74 5. Check that the unit electrical bond to the airframe meets the requirements of Section 3.6. 6. Reconnect the electrical connector to the servo. 7. Perform any required actions per Section 5.5. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-18...

  • Page 75: Figure 5-15 Servo Control Rod Typical

    GFS 83 servos or connected components. NOTE For the GFS 83 Yaw servo output arm (1.25 inch servo output arm, Garmin P/N 011-0449- 01), there may not be enough clearance between the servo and output arm to remove the bolt connecting the control rod to the output arm.
  • Page 76 5. Perform any required actions per Section 5.5. WARNING If adjustments are required, ensure minimum rod end engagement, jam nut torque, and safety wire are installed per the applicable figure listed in step 4. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-20...
  • Page 77 2. Align fastener holes in the shear fuse with threaded holes in servo arm and the hub. 3. Install retaining screws and torque as specified. Refer to Figure 5-11. 4. Perform any required actions per Section 5.5. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-21...
  • Page 78 5-13 (Roll), and Figure 5-14 (Yaw), prior to setting the arm friction (step 2). 2. Set the arm friction in accordance with the reset procedure in Section 3.8. 3. Perform any required actions per Section 5.5. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-22...

  • Page 79: Collective Position Sensor

    Removal and re-installation or replacement of the collective position sensor requires sensor calibration (for range of motion). Refer to Figure 5-16 and Figure 5-17 for sensor removal, installation, and adjustment details. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-23...

  • Page 80: Figure 5-16 Collective Position Sensor Installation

    Figure 5-16 Collective Position Sensor Installation 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-24...

  • Page 81: Figure 5-17 Collective Position Sensor Adjustment

    Figure 5-17 Collective Position Sensor Adjustment 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-25...
  • Page 82 (i.e., freely retract). Likewise, do not pull the steel cable beyond its maximum extension length of 2 inch limit, as it will damage the sensor. 1. Remove power from the GFC 600H FCS by pulling the FCS circuit breaker. 2. Gain access to the collective position sensor. Refer to Figure 5-1.

  • Page 83: Figure 5-18 Arm Mount Detail

    3. Adjust arm angle to achieve proper rigging for collective up and down positions, as shown in Figure 5-16. 4. Tighten and torque nuts on the two bolts and secure using cotter pins. Figure 5-18 Arm Mount Detail 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-27...

  • Page 84: Switches

    5.4 Switches Figure 5-19 FCS On-Off Switch Installation 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-28...

  • Page 85: Figure 5-20 Cyclic Control Switches Installation

    Figure 5-20 Cyclic Control Switches Installation 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-29...

  • Page 86: Figure 5-21 Collective Control Switches Installation

    Figure 5-21 Collective Control Switches Installation 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-30...
  • Page 87 5.4.1 Co-Pilot Cyclic Control Removal and Installation Installation of the GFC 600H Flight Control System modifies the CYCLIC STICK AND GRIP ASSEMBLY, COPILOT removal and installation procedures. During installation of the GFC 600H system, Bell connector 6712CT1J1 is replaced with an under floor mounted receptacle/connector as shown in Figure 5-22.
  • Page 88 Cyclic Stick and Grip Assembly, Copilot Install Procedure: 1. Follow steps 1 through 3 of DMC-505-A-67-12-22-00A-720A-A as written. NOTE Steps 4 and 5 of DMC-505-A-67-12-22-00A-720A-A are not applicable with GFC 600H installed. 2. Access G2200J200 connector by removing the SLS-030-209-007 forward belly panel in accordance with Bell procedure DMC-505-A-53-10-02-00A-520A-A.

  • Page 89: Figure 5-22 Access Panel Installation (Optional)

    Figure 5-22 Access Panel Installation (Optional) 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-33...

  • Page 90: Figure 5-23 Existing Heel Rest Pad Installation

    Figure 5-23 Existing Heel Rest Pad Installation 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 5-34...

  • Page 91: Post-Maintenance Required Actions

    • Load and verify software per Section 6.1.1. • Configure GFC 600H per Section 6.2.2. Installed new/repaired GMC 605H • Re-calibrate GFC 600H and G1000 AHRS and magnetometer per Section 6.3.4 and Section 6.3.5. • Perform Normal Mode Checks per Section 7.2.

  • Page 92: System Software, Configuration, And Calibration

    This section contains instructions for loading software, configuring, and calibrating the GFC 600H. Required test equipment to perform system calibrations is defined in Section 3.2.3. Information regarding the operation of the GFC 600H can be found in GFC 600H Bell 505 Pilot’s Guide (P/N 190-02775-00).

  • Page 93: Table 6-1 Software, Configuration, And Calibration Log

    Section 6.3.1  Collective Position Sensor Calibration Section 6.3.2  Servo Directionality and Wiring Verification Section 6.3.3  Pitch/Roll Offset Calibration Section 6.3.4  Magnetometer Calibration Section 6.3.5  190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 6-2...

  • Page 94: Software Loading

    6.1 Software Loading 6.1.1 GFC 600H Installation of the GFC 600H requires addition of the GFC 600H Option to the G1000H system using the STC GFC 600H Option Loader Card detailed in GFC 600H Bell 505 STC Equipment List (P/N 005-01095- 41).
  • Page 95 For rotorcraft with the G1000H NXi system (GDU 105XH / GIA 64H), the GSU 75H software may require an update using the NXi STC GFC 600H Option Loader Card. Refer to GFC 600H Bell 505 STC Equipment List (P/N 005-01095-41) to determine if a software update of the sensor is required.

  • Page 96: Configuration

    Figure 6-1 summarizes the Configuration mode navigation key functions. Each screen in Configuration mode follows the same basic layout with a MENU, GROUP, and PAGE TITLE listed for each page. To exit Configuration mode, cycle power to the GFC 600H FCS. Figure 6-1 GMC 605H Configuration Mode Navigation...

  • Page 97: Figure 6-2 Gmc 605H Configuration Mode Map

    ASSERTS AHRS PHOTOCEL PHOTOCEL SERVO DATALOGS SERVOS CONTRAST SERVOS ARINC 429 GROUPS RANGE DISCRETE UPLOAD ANNUNC MANIFEST COLL SNSR OFFSET CALIBRATE Figure 6-2 GMC 605H Configuration Mode Map 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 6-6...

  • Page 98: Table 6-2 Gmc 605H Sys > Install Configuration Settings

    NOTE Prior to performing any configuration, software must be updated on each system component to match the versions specified in GFC 600H BELL 505 STC Equipment List (P/N 005-01095-41). Navigate to the SYS menu item, and then the INSTALL group and configure the GMC 605H per Table 6-2.

  • Page 99: Table 6-3 Gmc 605H Gmc Dsp Configuration Settings

    Navigate to the TEST menu item, and then the AUDIO group and configure the GMC 605H per Table 6-5. Table 6-5 GMC 605H AUDIO Configuration Settings Configuration Item Setting Notes VOLUME 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 6-8...

  • Page 100: Calibration And Verification Procedures

    00A-271B-A). The final friction must be no more than 1.5 lbf when the system is powered on with all servos disengaged. The GFC 600H system uses multiple AHRS solutions that must be calibrated with the aircraft’s existing AHRS (GSU 75H). The GMC 605H will not provide valid outputs until the calibration procedures in this section are completed.

  • Page 101: Servo Directionality Verification

    Left Pedal Forward CoPilot Collective Left [1] YAW: LEFT Left Pedal Forward Pilot Collective Right [1] YAW: RIGHT Right Pedal Forward CoPilot Collective Right [1] YAW: RIGHT Right Pedal Forward 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 6-10...

  • Page 102: Table 6-7 Gmc Discrete Verification

    PILOT FTR CYCLIC CoPilot FTR PILOT FTR CYCLIC Pilot YAW ON/OFF [1] TOGGLE YD STATE CoPilot YAW ON/OFF [1] TOGGLE YD STATE Notes: [1] If YAW is installed 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 6-11...

  • Page 103: Pitch/Roll Offset Compensation

    “CALIBRATION COMPLETE: FAILURE” will be displayed if the process fails to complete successfully. 5. When the test is complete on the GMC 605H, select QUIT to return to the GFC > CALIBRATE > P/R page. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 6-12...

  • Page 104: Magnetometer Calibration

    NOTE The GMC 605H internal AHRS displays Magnetic Heading in ±180° values (not 1-360° value shown on the PFD) and will require conversion to true heading for comparison. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 6-13...

  • Page 105: Return-To-Service

    7.3.1 Maintenance Records .......................7-14 Procedures detailed in the following sections verify the proper operation of the GFC 600H FCS after maintenance has been performed on the system. Operational information regarding the GFC 600H FCS can be found in GFC 600H Pilot’s Guide (P/N 190-02081-04).

  • Page 106: Installation Checks

    7.1.2 Pitot/Static Leak Check If the pitot/static system was disconnected as part of the GFC 600H maintenance, then a leak check must be performed. Refer to Bell 505 Jet Ranger X Maintenance Manual (PMC-505-97499-02000-00) for pitot and static system leak test instructions.

  • Page 107: Normal Mode Checks

    Refer to Bell 505 Jet Ranger X Maintenance Manual (PMC-505-97499-02000-00). 7.2.1 FCS Pre-flight This procedure verifies that the GFC 600H system has all required data to pass the automated pre-flight test. 1. Remove electrical power from the rotorcraft and GMC 605H.

  • Page 108: Servo Engagement/Disengagement

    2. Disengage the yaw servo by pressing the Yaw On/Off collective switch on the pilot controls and verify the following: a. The GMC 605H no longer displays “Y” in the servo status region. 3. Repeat steps 1 and 2 for co-pilot collective switch. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 7-4...

  • Page 109: Servo Directionality

    Moving the controls quickly while the servos are unpowered can lead to damage of the shear fuses. 3. Move the cyclic control through full range of motion fore/aft. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 7-5...

  • Page 110: Servo Detent

    While the pedals are in motion, verify that “Y” is displayed on the GMC 605H in black text with white background. 8. Press the FCS key on the GMC 605H to disengage the FCS. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 7-6...

  • Page 111: Ftr (Force Trim Release)

    The following procedure verifies FTR/FCS ENG switch wiring to the GMC 605 and the GFS 83 servos out of detent condition is properly detected and annunciated by the GFC 600H system. The following procedure requires external hydraulic power be applied to the aircraft. Refer to Chapter 29 of Bell 505 Jet Ranger X Maintenance Manual (PMC-505-97499-02000-00) for installation and removal of hydraulic power unit (HPU).

  • Page 112: Hdg Mode

    8. Adjust the PFD heading bug to the right of the current aircraft heading and verify the following: a. The cyclic moves to the right. 9. Press the FCS key on the GMC 605H to disengage the FCS. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 7-8...

  • Page 113: Ias Mode

    13. Press the IAS key on the GMC 605H to disengage IAS mode and verify the following: a. “IAS” is removed as the active vertical mode on the GMC 605H. 14. Press the FCS key on the GMC 605H to disengage the FCS. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 7-9...

  • Page 114: Vs Mode

    13. Press the VS key on the GMC 605H to disengage VS mode and verify the following: a. “VS” is removed as the active vertical mode on the GMC 605H. 14. Press the FCS key on the GMC 605H to disengage the FCS. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 7-10...

  • Page 115: Alt Mode

    13. Press the ALT key on the GMC 605H to disengage ALT mode and verify the following: a. “ALT” is removed as the active vertical mode on the GMC 605H. 14. Press the FCS key on the GMC 605H to disengage the FCS. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 7-11...

  • Page 116: Nav Mode

    The cyclic moves to the right. 13. On the PFD, set the selected course to match the current aircraft heading. 14. Press the FCS key on the GMC 605H to disengage the FCS. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 7-12...

  • Page 117: Apr Mode

    The cyclic moves to the left. 14. On the PFD, set the selected course to match the current aircraft heading. 15. Press the FCS key on the GMC 605H to disengage the FCS. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 7-13...

  • Page 118: Documentation Checks

    Part and serial numbers of any replacement equipment. • Other relevant rotorcraft maintenance information. Verify that replacement LRUs’ software versions match those in the rotorcraft permanent records in Appendix A. 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page 7-14...

  • Page 119: Appendix Ainstallation-Specific Information

    A.1 General Installation Information......................A-2 A.2 Interfaced Equipment........................A-3 A copy of this appendix must be used to record information for a specific installation of the GFC 600H FCS system and maintained with the rotorcraft permanent records. Include a copy of the GFC 600H system aircraft wiring diagrams in the permanent records along with the forms specified in this appendix.

  • Page 120: General Installation Information

    Aircraft Reg. #: ______________________________ Unit Part Number Serial Number Mod Level GMC 605H 011-02967-22 GFS 83, Pitch 011-03367-12 GFS 83, Roll 011-03367-12 GFS 83, Yaw 011-03367-14 Collective Position Sensor 011-04817-00 190-02081-08 GFC 600H Bell 505 STC Maintenance Manual Rev. 4 Page A-2...

  • Page 121: Interfaced Equipment

    Use Table A-1 to document the GFC 600H system interfaces with the GIFD equipment installed in the rotorcraft. All GFC 600H interfaces to equipment listed in Table A-1 are covered by this STC. Refer to installation-specific interconnect diagrams retained with the rotorcraft permanent records for detailed equipment interface information.

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