SOS ORC Adjustment

Manual is only for direct drive adjustment. Any body got the other. Starting not want to do much cold. Was hunkering down plowing in 4th and the other day was shutting down until warm then whatever I wanted. R1 and R2 give me fits until warm.R2 never seemed diifernt as on 871. Thanks, Dave

The orc is either good or bad. No adjustment. I think I have a new one in box of parts.

shaun how much do you want for that orc. thanks chris

(quoted from post at 18:55:48 10/29/12) Manual is only for direct drive adjustment. Any body got the other. Starting not want to do much cold. Was hunkering down plowing in 4th and the other day was shutting down until warm then whatever I wanted. R1 and R2 give me fits until warm.R2 never seemed diifernt as on 871. Thanks, Dave

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Dave,

I have the 1955 to 1960 Ford manual (reprint). As Sean stated, there is no adjstment procedure for the ORC. There is a procedure for pulling, replacing, etc. but it obviously requires splitting the tractor and some disassembly of the transmission.

R1 and R2 giving you trouble may point to Clutch 1 not applying when the oil is cold. The only other gears affected by this would be 9th and 10th which seldom get used. The following six problems may contribute to a Clutch 1 problem as stated in the manual:

a. Leaking valve body gasket
b. Leaking piston "O" rings
c. Mainshaft seals
d. "C" sun gear seals
e. Leaking servo seals
f. scored or burred piston

a-e would likely get worse as your oil warmed up. A scored or burred piston may contribute when the oil is cold and insufficient pressure is being provided, but the problem could correct itself as the oil warms up and pumps better.

HTH,

Chris

(quoted from post at 18:55:48 10/29/12) Manual is only for direct drive adjustment. Any body got the other. Starting not want to do much cold. Was hunkering down plowing in 4th and the other day was shutting down until warm then whatever I wanted. R1 and R2 give me fits until warm.R2 never seemed diifernt as on 871. Thanks, Dave

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1. What manual do you have? The original Ford shop manual on these tractors had the ORC transmission in it. You needed the transmission supplement manual for the DDC. Either or both these manuals are usually available at reasonable prices on eBay.

2. Are you saying the transmission was stalling the engine until it got warmed up when in 4th gear? If so, band adjustment might be in order. It is certainly in order if you've adjusted them using the DDC specs. It might also be sticky control valves. I have new control valve bodies on hand for this transmission.

3. I'm guessing you're saying R2 operated, but that there seemed to be no difference in speeds between R2 & R1? If so, then Chris' scenario may apply, if all forward ratios, 1 through 8 operate normally.

Valves are good, been polished as well the cylinders. new gasket. I got a shop manual, not original, and hate to buy another just need orc supplement. Bet thats it I adjusted direct drive. Was fine before except for jumping out of 6th. Got no cash to buy anything now. New ac ,dishwasher root canal. Merry christmas.

Dave, there is [b:fbf6cb02cd][u:fbf6cb02cd]no[/u:fbf6cb02cd][/b:fbf6cb02cd] ORC supplement. The ORC proceedure is what's in the original 1955 - 1960 Ford shop manual. If you adjusted by this manual, you adjusted by the ORC (red) transmission proceedure.

There is a DDC supplement for the early *000 tractors and for the *01 tractors that have been retrofitted with the DDC (blue) transmission.

Nope. Adjusted ddc. Guess I"ll get older manual. Think motors been changed out on this because has a D after Mdel # (981).Thanks

(quoted from post at 17:48:49 10/30/12) Valves are good, been polished as well the cylinders. new gasket. I got a shop manual, not original, and hate to buy another just need orc supplement. [color=red:aa098e2a98]Bet thats it I adjusted direct drive. Was fine before except for jumping out of 6th[/color:aa098e2a98]. Got no cash to buy anything now. New ac ,dishwasher root canal. Merry christmas.

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Hey Dave,

I'm still confused here and am just trying to understand what has been done. Based on the highlighted quote, the transmission was operating ok, but "jumping out of 6th".

After making adjustment for the Direct Drive Clutch, things did not work as well. I'm not the expert Larry is, but I don't see any adjustments for the OverRunning Clutch, which is what you say you have. How and where did you make adjustments for the Clutch??

The only adjustments I've made are band adjusments for the three bands. I don't know of any other adjusments for the ORC transmsission that are easily made. If you can tell us what you changed, it may help us understand what you have and what has been changed.

Chris

(quoted from post at 22:50:12 10/31/12)

(quoted from post at 17:48:49 10/30/12) Valves are good, been polished as well the cylinders. new gasket. I got a shop manual, not original, and hate to buy another just need orc supplement. [color=red:44d9302d20]Bet thats it I adjusted direct drive. Was fine before except for jumping out of 6th[/color:44d9302d20]. Got no cash to buy anything now. New ac ,dishwasher root canal. Merry christmas.

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Hey Dave,

I'm still confused here and am just trying to understand what has been done. Based on the highlighted quote, the transmission was operating ok, but "jumping out of 6th".

After making adjustment for the Direct Drive Clutch, things did not work as well. I'm not the expert Larry is, but I don't see any adjustments for the OverRunning Clutch, which is what you say you have. How and where did you make adjustments for the Clutch??

The only adjustments I've made are band adjusments for the three bands. I don't know of any other adjusments for the ORC transmsission that are easily made. If you can tell us what you changed, it may help us understand what you have and what has been changed.

Chris

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Chris, this is a guess but here it is. Dave is not actually adjusting the DDC or ORC clutches. He's adjusted his bands using a procedure for the wrong transmission, my guess is for the late *000 series since he insists it's the only procedure in the manual.

what I'm confused about is [color=red:44d9302d20]how it jumped out of 6th gear[/color:44d9302d20]

Yes adjusting bands. I thought the ddc had a c in front of serial #. Just be going along in 6th and goes to neutral I should say instead of jumping out. Reverse has done it. Seems to bog the engine in r2.

Because of the components used in R2, it does work the engine work harder. You'll notice that any of the overdrive ratios (the ones that apply band 1 rather than the ORC or DDC clutch) make the engine work a bit harder, especially before the transmission is warmed to normal operating temperature. These ratios are R2,3,4,7,8 &10.

If your transmission goes to neutral in 6 and R1 once in awhile I'd say your ORC sprag is beginning to fail. I'll wager you'd notice that in 1,2,5 & 9 as well if operated in any of those ranges long enough.

There is no C in any serial number until you get into the later *000 tractors.

The raised casting number on the left side of the transmission case on a DDC generally is C*NN 7006 B . The * can be a 0 or 3 in an updated *01 or an early *000 series tractor. I'd have to look the ORC casting number up, but it's a six digit number that contains no letters. Oddly enough, I have run onto a prior 4000 row crop with the ORC casting number on a DDC transmission.