Center diff zero setting

[Gumby]

I'm sorry if this has been covered. I tried to search for it and found too much stuff and not what I was looking for.

I'm trying to find the zero position, either locked or unlocked for the gear in the CDL. I have a great pic from the FSM of the diff lock zero position, but nothing for the CDL.

Anybody know what it is?

 

[Tools R Us]

The FSM just says to R&R in lock condition. I didn't have that luxury, mine was somewhere in the unlock range and inoperative. Removed and repaired the actuator, plugged it in and cycled it leaving it in the locked position. By rocking, turning the front driveshaft flange with one hand and moving the shift shaft with the other fully locked the CDL, then installed the actuator. It's worked great, first time every time.

 

[GXO]

Is your actuator removed?

You should be able to run it with a 9V. If you did remove it you should also be able to see the mating surface and be able to see which way it is turning things.

 

[Gumby]

The actuator was fubar'ed. The motor was burned up and the magnets broken. Fortunately, the rear actuator parts fit the center actuator.

I can lock the diff by hand and I did that. Light comes on in the locked position so the indicator is OK.

I had to pull the gears to clean and lube the springs. I didn't mark the position of the gear first. I'm not sure that it was stopped in any correct position anyway.


I need to figure out how the big gear lines up when it's in the locked position. Is the inside or the outside contact breaking contact with the metal disk when the gear stops?

 

[Tools R Us]

...

I need to figure out how the big gear lines up when it's in the locked position. Is the inside or the outside contact breaking contact with the metal disk when the gear stops?

It stops just after the contact breaking point. The position isn't that critical, as long as your close. When you plug it into the harness and cycle it, it will stop in the correct position.

 

[GXO]

This is pretty simple to figure out...you just have to see which way the locking mechanism needs to move inside the housing.

If it needs to move left, the big gear is locked when it is counter-clockwise to the extreme (to the break in contact on the plastic). If it needs to move right it is locked when clockwise to the extreme.

I hope this makes sense.