Category: FT8

ART006 – General – Maintenance board.

  • June 18, 2024
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ARTICLE REF – ART006 Maintenance Board. This was a photo taken of how one customer used a white board with stuck-on labels and a marker to keep track of the hours in service and to control what filters on standby were used or new etc. At a glance you had … Continue Reading →

ART005 – FT8 – Stroking gas fuel valve FCV1101

  • June 18, 2024
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ARTICLE REF – ART005 During commissioning of the fuel gas system the gas valves were stroked from the ICE calibration screen and found that each one stopped at 90% with a “valve failure” annunciated when the command signal reached 97%. It was expected that the valve would move the complete … Continue Reading →

ART004 – FT8 – Gas fuel valve driver fault

  • June 18, 2024
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ARTICLE REF – ART004 Some years ago there was an issue on a site where an operator got an alarm “Gas Fuel Valve”. The alarm would not reset by software resetting from the ICE display and it was decided to change the gas fuel valve. The control system was powered … Continue Reading →

ART237 – FT8 Liquid fuel start issue

  • May 20, 2024
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ARTICLE REF – ART237 This is a troubleshooting and training video which gives a very  detailed insight into the sequence of events leading up to ignition on the liquid fuel system,  plus technical information I share with you that is not available elsewnere. There are subtitles available in Spanish – … Continue Reading →

ART225 – FT8 – Vibration Alarm Verification

  • May 12, 2024
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ARTICLE – ART225 This is Part 1 of a training video showing how to use an FG-100 frequency generator to test the alarm and shutdown values on the Bently Nevada 3500 System. https://vimeo.com/945546856

ART235 – FT8 Backup overspeed TACHPAK 30 – Caution

  • April 24, 2024
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ARTICLE REF – ART235 This is the older version backup overspeed monitor which is still in service but no longer being used in new production. It has been replaced by the TACHPAK 30 which is a two channel overspeed monitor. The TACHPAK 3 has a single channel and monitors either  … Continue Reading →

ART234 – FT8 – Bently Nevada 3500 Issue

  • April 21, 2024
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ISSUE REF – ART234 There was an issue recently were the Relay 86EA tripped and would not reset. Quite often it is not obvious what causes the trip of the 86 Protection Relays, as they can have multiple inputs that can trip it. It is worth looking at the display … Continue Reading →

ART232 – FT8 – Onguard Fire System Issue

  • April 14, 2024
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Article Ref ART232 The issue I encountered was that the Fire System was not communicating with the ICE Monitor. While the ethernet cable was ok we were not able to PING the CPU. What is normally displayed on the fire system display is only 25% of what is available on … Continue Reading →

ART230 – FT8 Cold Air Buffer System

  • February 24, 2024
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ARTICLE REF – ART230 The FT8 is derived from the JT8D aircraft turbine. It has an additional two compressor stages added to the front of the existing JT8D. This gives additional power to the FT8, but in doing so the turbine produces more heat. This additional heat was a problem for … Continue Reading →

ART229 – FT8 Liquid fuel troubleshooting

  • February 14, 2024
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ARTICLE REF – ART229 I am going to talk about “starting” and “fuel transfer” issues on the FT8 liquid fuel system. Liquid fuel starting issues are common on the FT8. One of the main reasons for starting issues on liquid fuel, is the lack of atomizing air at the injector … Continue Reading →

ART224 – FT8 Oil Pressure Issue

  • December 23, 2023
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ARTICLE REF – ART224 If you are installing a new or overhauled Gas Generator and you are having issues regulating the oil pressure – this will be of interest to you. The drawing below is the Oil System of the FT8 Gas Generator. The Red dotted line indicated is the … Continue Reading →

ART214 – FT8 Control System Training

  • October 4, 2023
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Article Ref ART214 FT8 Control System Training  Part 1 – Saving tunables Part 2 – IGV & VSV Calibration Part 3 – Hydraulic Starter Spin Logic  https://vimeo.com/860928403?share=copy

ART161 – FT8 – Gas Fuel – Flexible Hose

  • July 20, 2022
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ARTICLE REF – ART161 This photo relates to an earlier article. Copy the following into the Keyword Search to locate the earlier article. “FT8 – Gas fuel hose failures“ OR – from the top menu select FT8 FT8 System FT8 System – Gas Fuel Scary stuff!