Terry.
Check the carbon brushes are OK if you haven't already. I have replaced
mine
twice, they seem to last about 200/250 hours. I visited Airmaster late
last
year. The latest units have the brushes on the shaft rather than the
back
plate of the spinner flange which should help the brushes last longer I
guess. My prop has also occasionally got it's knickers in a twist and
refused to work properly. No idea what caused it but resetting the
breaker
has sorted it out so far.
Richard Iddon G-RIXS
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Terry
Seaver
(terrys)
Sent: 04 January 2010 21:03
Subject: Europa-List: Airmaster prop controller problem
Hi,
For those of you who have the Airmaster prop:
I went flying yesterday for the first time in 6 weeks. During the
run-up, I normally check for ignition drop at 4000 rpm, then place the
prop
in 'manual', increase pitch until rpms drop to 3500, then place the
switch
back to 'auto' and make sure the rpms return to 4000. This time, when I
went back to 'auto', nothing happened (rpms remained at 3500). Going
back
to 'manual', I was able to go back to fine pitch and 4000 rpm. Tried
again,
same thing.
I turned the circuit breaker for the prop controller off and back
on,
then tried the test again and it worked this time, i.e. the prop went
back
to fine and 4000 rpm when I selected 'auto'.
Has anyone else had this happen to them?
Any ideas about what the problem was/is?
Regards,
Terry Seaver
A135, XS monowheel with 912S, Airmaster prop.
Checked by AVG - www.avg.com
01/03/10
09:41:00
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