Today's Message Index:
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1. 06:40 AM - Re: Vans RPM Transducer IE VTACHGEN 12 (user9253)
2. 03:27 PM - Troubleshooting a Rotax generator (txpilot)
3. 06:30 PM - Re: Troubleshooting a Rotax generator (Richard Girard)
Message 1
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| Subject: | Re: Vans RPM Transducer IE VTACHGEN 12 |
Van's support might offer some advice on the Pulse/RPM output of the VTACHGEN, which depends on the engine and gear ratio. You probably have the FlightDEK-D180 Installation Guide and have read the tach section on page 6-8. http://www.dynonavionics.com/downloads/Install_Guides/FlightDEK-D180%20Installation%20Guide.pdf
Without VTACHGEN documentation, the easiest solution might be to set the D-180
parameters by trial and error. The pulses/RPM ratio is most likely a whole number
multiple of the actual RPM like Bubblehead said. After setting up the D-180
to a reasonable RPM display, the RPM could be verified using a portable optical
tachometer if desired.
Joe
--------
Joe Gores
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=313691#313691
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| Subject: | Troubleshooting a Rotax generator |
I have a Zenith CH-701 with a Rotax 912ULS. My electrical system is based on the
"Z-16" system diagram.
I'm getting set for my first flight when I noticed a generator failure. I've double-checked
all of my wiring and verified no fuselinks have been blown. The
alternator OV Disconnect relay is functioning fine. It seems it's down to a
bad generator or a bad rectifier-regulator.
I'm wondering what's the best way to proceed with the troubleshooting. Could I
connect a voltmeter to the generator cables and check for proper voltage? What
would I expect for a functioning generator? (the installation manual indicates
250W AC output at full power). Any other suggestions on how to troubleshoot
without replacing the generator?
Thanks for any help.
Dan Ginty
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=313726#313726
Message 3
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| Subject: | Re: Troubleshooting a Rotax generator |
Dan, See the Rotax Heavy Maintenance Manual, Section 74-00-00, 3.7, page 16.
Rick Girard
On Sat, Sep 25, 2010 at 5:21 PM, txpilot <txpilot@consolidated.net> wrote:
> txpilot@consolidated.net>
>
> I have a Zenith CH-701 with a Rotax 912ULS. My electrical system is based
> on the "Z-16" system diagram.
>
> I'm getting set for my first flight when I noticed a generator failure.
> I've double-checked all of my wiring and verified no fuselinks have been
> blown. The alternator OV Disconnect relay is functioning fine. It seems
> it's down to a bad generator or a bad rectifier-regulator.
>
> I'm wondering what's the best way to proceed with the troubleshooting.
> Could I connect a voltmeter to the generator cables and check for proper
> voltage? What would I expect for a functioning generator? (the
> installation manual indicates 250W AC output at full power). Any other
> suggestions on how to troubleshoot without replacing the generator?
>
> Thanks for any help.
>
> Dan Ginty
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=313726#313726
>
>
--
Zulu Delta
Kolb Mk IIIC
582 Gray head
4.00 C gearbox
3 blade WD
Thanks, Homer GBYM
It is not bigotry to be certain we are right; but it is bigotry to be unable
to imagine how we might possibly have gone wrong.
- G.K. Chesterton
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