WGK4900 Yoke Differences

[Peale]

I've been reading that there were two different yokes for the K4900 series.

What are the readings for each one, and which models went with which ones?

I've got two 4900s here (exact models I'd have to check on) and two chassis that I'd like to test. I don't want to blow anything up.

 

[modessitt]

Check the number screened on the back of the chassis. It will say:

DBQ
2061433-xxx

If xxx = 023, then you have an early version chassis and must match it with a yoke that has either of the following numbers on it:

2021111194
2021111201

If xxx = something else (like 034, 040, 057, etc), then it is a later series chassis and must match with a yoke that either of the following numbers on it:

2021111258
2021111264

If you mismatch a chassis and yoke, you will get foldover that cannot be fixed or adjusted out.

Here is the service bulletin that was put out about it...

 

[Peale]

So just foldover? I'm okay with that, as long as it's not going to blow up.

And thanks for the info, that's going right into the logbook.