Cat 735b rock truck , no power to move while loaded

[Kels306]

It spun both ways. I straightened out the springs then it would lock in both ways , the transmission had a tag on it saying it was rebuilt in 2017 , but yes I'll be getting all the parts

 

[Kels306]

It spun free in both directions, I straightened out the springs to see and it would lock in , what would cause those springs to rotate in there

 

[Nige]

It spun free in both directions, I straightened out the springs to see and it would lock in , what would cause those springs to rotate in there

In addition to the springs the ratchet teeth will be worn out. Pretty much everything in that mechanism will be worn out.

 

[Kels306]

What are you saying about the ratchet teeth or where are they

 

[Nige]

What are you saying about the ratchet teeth or where are they

iT-1423, Cam - Freewheel.....
This illustration may not be a 100% accurate representation of what you actually have, but this is what I'm talking about. For us it was on the list of "must use parts" for any truck torque converter rebuild.

 

[Cmark]

I don't see how this can EVER have worked. It's assembled all wrong. The springs are supposed to push the rollers to the narrow end of the ramp, and three of the springs are sideways. ????

 

[Nige]

Like this.......

(9) Race
(10) Cam
(11) Spring
(12) Slot
(13) Cam Surface
(14) Roller

The torque converter stator is fixed to the cam (10) by splines. When the hydraulic oil tries to move the stator in the opposite direction to the turbine, rollers (14) are forced into the narrow end of the slot (12). This prevents the cam and stator assembly from rotating around the carrier. Since the cam is held stationary, the stator cannot turn and the freewheel clutch is locked.

 

[Kels306]

That's the way It was when I took it apart it was working fine since it got rebuilt by cat in 2017 and the issue I had started 2 weeks ago

 

[Nige]

That's the way It was when I took it apart

At least you'll know now how to install everything correctly when you go to put it all back together.

 

[Mobiltech]

I wonder how many this rebuild guy has done like this.
If they did this wrong what kind of a rebuild did they do on the rest of it?
I can’t understand how it worked at all but it must have been grabbing a bit.

 

[Nige]

You got it rebuilt yet.?

 

[skyking1]

thanks to all and thanks to @Cmark for pointing out the mis-assembly. I noted the odd sideways springs but of course know nothing else. Slowly learning
You have to admit, the springs on the narrow side had to be easier to put together