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Re: Master Relay or Solenoid, Battery contactor
Posted: Thu Mar 16, 2017 2:33 am
by cessna170bdriver
The big load is starter current, several hundred amps. Everything else is in the noise.
Re: Master Relay or Solenoid, Battery contactor
Posted: Sun May 07, 2017 12:18 pm
by pojawis
Very good and timely information, for me at least. THANKS. Saved a bunch of time on my part.
Found two solenoids from Wicks Aircraft. One is listed as a starter intermittent solenoid, p/n 24037, $19.95. The other as a master continuous solenoid, p/n 24115, $23.55. The descriptions cover both and indicate these are Cole Hersee solenoids. No indication of PMA. I have not verified that this is a correct replacement for the 170...
Re: Master Relay or Solenoid, Battery contactor
Posted: Sun Oct 29, 2017 2:52 pm
by pmel22
I replaced my old relay with a sky-tec sts-m12 in June, and it has now failed. I put in a call to Hartzell lets see what they have to say.
Re: Master Relay or Solenoid, Battery contactor
Posted: Mon Oct 30, 2017 3:03 pm
by pmel22
Caution there is a service bulletin on the STS-M12, and it requires replacement.
Re: Master Relay or Solenoid, Battery contactor
Posted: Mon Oct 30, 2017 4:28 pm
by lowNslow
Here is the link to the aforementioned SB. Tried to upload it but it exceeded the 1MB limit.
http://skytec.aero/wp-content/uploads/2 ... SB-072.pdf
Re: Master Relay or Solenoid, Battery contactor
Posted: Sun Dec 20, 2020 4:04 pm
by Ryan Smith
Is there a source for the clear plastic covers, or are these unobtanium?
Re: Master Relay or Solenoid, Battery contactor
Posted: Sun Dec 20, 2020 4:51 pm
by Bruce Fenstermacher
You can find them right next to assist straps and instrument overlay rings. Keep you eyes open I've found all three.
Re: Master Relay or Solenoid, Battery contactor
Posted: Sun Dec 20, 2020 5:09 pm
by Ryan Smith
Bruce Fenstermacher wrote:You can find them right next to assist straps and instrument overlay rings. Keep you eyes open I've found all three.
IMG_1213.jpg
Any tips would be appreciated. It doesn’t appear that it has a part number?
Re: Master Relay or Solenoid, Battery contactor
Posted: Sun Dec 20, 2020 7:18 pm
by cessna170bdriver
I’ve lost track of how many years my master contractor cover has been missing. It doesn’t seem to be a problem.