Continuing saga of 435 Touch O Matic

So an update is in order.

Took the unit off the tractor and took it to a gentleman that had experience with 40, 420, 430 TOMs. After paying for the rebuild, the unit still did not work correctly. One of the reasons is that even though he used the service manual from the 420, 430. The unit on the 435 is a hybrid, and is found on the 1010 tractor (just found this out yesterday). When I say hybrid I mean it has the housing of a dual TOM, but the rock shaft is one piece, being actuated by both pistons. So the 420, 430 service manual is not adequate to facilitate reassembly of the unit.

There is a splined shaft coming out the side of the unit, that the control lever pivots on. Normally this shaft controls one portion of the Dual Tom. However in this case it does not pivot. It is pinned in place using a splined plate.

With the shaft held in the middle point of the rotation range. The rock shaft arms rise to horizontal and parallel to the ground. Once you move the lever to the down position, you can push them back down easily. If you rotate the shaft one spline to the right, the arms rise to full up. When moving the control lever to the down position, you can push the rockshaft arms down, but takes considerable force.

The arms rise regardless of control lever position.

So I need access to a 1010 service manual, to see the settings (turns) for the relief valves. and to make sure I have the shaft in the correct pinned position.

I would be grateful, if some one would share just that portion of the 1010 service manual.

Thanks in advance

. The late 30 series rockshafts were updates to use bushings in the housing and improved shaft seals .
Some previous tinkerer has cross bred a single with a dual rock shaft system . Not that way from the factory .

(quoted from post at 12:42:28 03/19/19) . The late 30 series rockshafts were updates to use bushings in the housing and improved shaft seals .
Some previous tinkerer has cross bred a single with a dual rock shaft system . Not that way from the factory .

Click to expand...

Not true, parts manual for 435 shows the unit in it,s entirety as it sets on the tractor now. This unit is also a perfect match to the one I stalled on 1010s.

I appreciate the reply but in this instance you need to check the parts books for 435s and 1010, not a 430.

Final update on the 435 Touch O Matic. Using an excerpt from a 1010 service manual, that the local JD dealership copied for me, I was able to get the adjustments right. If you look under the 1010 R, RU, RUS single hydraulic section you can see the unit. It specifically says that they used a Dual TOM system and bypassed some of the valving to make this unit, which is the same as what you find on the 435.

Thank you to those that offered suggestions.