Ercoupe Service Memorandum #49 refers to Part No. 415-52122 as the *new* style quadrant with wider and deeper grooves which prevents cable assemblies from contacting the stop bolts. This SM refers to AD Note 47-42-21, which I don't have for some reason. HTH Jim -----Original Message----- From: dan & ann curcio <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]> Date: Wednesday, November 17, 1999 10:25 AM Subject: Re: control column
>I would like to inspect my control column to determine if it actually was replaced >with the new number. Can anyone out there tell me the part number for the "bad" >column and the number for the new one? > >Thanks, >Dan 3548H > >Brian Garrett wrote: > >> Do you have access to a set of service bulletins on the Ercoupe as they >> detail all the changes in this area? The only way to properly inspect this control >> column is to take it out. In my case as I was disassembling the coupe anyway I >> didn't mind doing this >> but I would not like doing it to an assembled Coupe. I think, and others can >> correct me here, you need to remove the flooring, disconnect the nose wheel >> steering rod and the elevator and Aileron push rods and two bolts that act as >> pivots for the control column. You also have >> to remove the two taper pins holding the control wheel shafts and pull >> the control wheels back or if your so inclined remove them altogether. I >> can't remember if the header tank needs to be removed. I don't think so. >> I think at that point the column will come out. Probably around 2 - 3 hours >> work. The Service bulletin applicable, (mine are at home so I can't refer to >> them) will then describe the method of inspection and what to look for. The >> cross tube to vertical tube attachment and weld must be inspected for >> cracks using the dye penetrant method also the sector stops must not be >> rubbing on the cables. Apart from the dye inspection these tasks could be done by >> the owner and >> gives you a good chance to look around under there. How much of a job is it to >> inspect or replace the top of the quadrant and cables? Have any of you seen what >> color they are? Mine is a sort of metallic green, not zink chromate like all the >> rest of the control column parts. I looked at the top with a mirror and the number >> does not appear to be the "old" bad part number. >
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