Master & Starter Relays by Lamar - Grumman Style

Master & Starter Relays by Lamar - Grumman Style: Here we look at the Lamar X61-0028 (Master) and the X61-0030 (Starter) relays that are available. Video 1,324 in the Hit Parade.

[@justinhughes4722]

I just experienced the starter contactor welding closed on a 172 I'm working on. I appreciate the in depth breakdown... my first time experiencing this. Awesome video!

[@GrummanPilots]

Just replace it, glad the video helped.

[@macmak]

Thanks for sharing the knowledge. The Lamar relays appear taller than the originals. Any fitment issues?

[@GrummanPilots]

No, one is usually upside down so the master out is the same side as starter relay in on the same side.

[@macmak]

@@GrummanPilots I see. So you are able to reuse the jumper p/n 902030-1?

[@GrummanPilots]

@@macmak Sometimes, depends on size of unit (which has changed) and easy to make another jumper (I use copper).

[@billloesch1884]

Good job explaining the difference between the three and four post relays.
Good job distinguishing the continuous vs intermittent duty electrical application.
Any pilot procedure for a shorted starter relay during engine start?

[@GrummanPilots]

Master off, FYI

[@Dan-cn3ei]

I was following your until you got to the starter contactor you're fingers and calling out numbers ???? Totally confused me??,

[@GrummanPilots]

x61-0028 and x61-0030 both by aircraft spruce.

[@highfive3057]

does the diode come with the relay ?? if not where can i get it ??

[@GrummanPilots]

No, Fletchair for the diode it is just a 1N112 FYI.

[@highfive3057]

@@GrummanPilots thank you