My son put 15w-40 oil in the tranny/hydraulics on AC WD.

[Beatthedrums86]

I was driving back from the fueling station on my ‘52 AC WD, about to switch the hay spear out for the bush hog, when all of a sudden it just stopped moving. No reverse, forward, nothing. I checked to make sure the hand clutch was engaged, it was, clutch still had the same tension etc. Then I remembered that my son had added a bunch of hytran after we blew the seals in the loader. I went to get the bucket to top it off and realized it was still full, but a bucket of 15w-40 was now nearly empty. I checked the dipstick and sure enough, oil. I’m about to flush the system and put in hytran, but would the oil cause damage? Did I possibly lose the pump? Thanks in advance.

 

[wp6529]

It seems pretty unlikely that engine oil vs. hydraulic oil would cause any damage especially on a unit that old, indeed my 2004 backhoe specifies 10W-40 for both the engine and the hydraulics. Suspect more likely you have a blockage of some sort.

 

[wore out]

It seems pretty unlikely that engine oil vs. hydraulic oil would cause any damage especially on a unit that old, indeed my 2004 backhoe specifies 10W-40 for both the engine and the hydraulics. Suspect more likely you have a blockage of some sort.

HOW would anything hydraulic cause a 1952 Allis WD to stop moving?

 

[rustred]

I was driving back from the fueling station on my ‘52 AC WD, about to switch the hay spear out for the bush hog, when all of a sudden it just stopped moving. No reverse, forward, nothing. I checked to make sure the hand clutch was engaged, it was, clutch still had the same tension etc. Then I remembered that my son had added a bunch of hytran after we blew the seals in the loader. I went to get the bucket to top it off and realized it was still full, but a bucket of 15w-40 was now nearly empty. I checked the dipstick and sure enough, oil. I’m about to flush the system and put in hytran, but would the oil cause damage? Did I possibly lose the pump? Thanks in advance.

Nothing to do with the oil, why do think that old tractor needs hytran ? They use gear oil in the trans and diff.

 

[rustred]

Don’t they have that extra gear shift to stop movement.

 

[DanielW]

I'd agree with all others. Chances are that if you hadn't noticed it was 15W40 in there, you could have kept the 15-40 in there for the rest of your life and not noticed any problem. I think you have to look further afield for your issue. We're not allowed to post links to other forums on here unfortunately, but there are some pretty good discussions about the same issue on WD's on the Allis Chalmers forum website. Google, "Hand Clutch Issue WD Allis Forum" and the first thread that comes up titled 'Hand Clutch Issue?' is a pretty good discussion of an identical issue on a WD.

 

[GeneMO]

I agree. That old tractor would not notice the difference in those two types of oil. And your rear end is gonna probably have something like 80-90W gear lube.

 

[BarnyardEngineering]

I agree. You've got something else wrong. Has nothing to do with the oil unless your son somehow managed to mistakenly fill the DRY clutch housing with 15W-40.

Try shifting with your foot OFF the clutch pedal. If you can shift, no power is getting from the engine to the transmission. If it grinds when you try to put it in gear it still might be the main clutch but it is likely farther back.

 

[Geo-TH,In]

I was driving back from the fueling station on my ‘52 AC WD, about to switch the hay spear out for the bush hog, when all of a sudden it just stopped moving. No reverse, forward, nothing. I checked to make sure the hand clutch was engaged, it was, clutch still had the same tension etc. Then I remembered that my son had added a bunch of hytran after we blew the seals in the loader. I went to get the bucket to top it off and realized it was still full, but a bucket of 15w-40 was now nearly empty. I checked the dipstick and sure enough, oil. I’m about to flush the system and put in hytran, but would the oil cause damage? Did I possibly lose the pump? Thanks in advance.

My terramites use 10w30 or 10w40 in the hydraulics. Warning sign, do not use hydraulic oil.
I put 5w20 in a Husky HST,.
All work fine.

 

[kencombs]

My terramites use 10w30 or 10w40 in the hydraulics. Warning sign, do not use hydraulic oil.
I put 5w20 in a Husky HST,.
All work fine.

My Case garden tractors have all used 15w40 or 50 depending on the condition of their pumps. Original spec was 20w40 but that is hard to find today. Same in the transaxle, but that's varied over the years depending on what engineer wrote the manual. 80/90 or engine oil. The loader versions also spec engine oil.

I've been told that is due to the type of pump and hydraulic motor used. Seals are not a problem with either, but the drive motor prefers engine oil.

and there is a lot of history where hydraulic oil was substituted resulting a really s l o w tractor/loader.

 

[wore out]

My Case garden tractors have all used 15w40 or 50 depending on the condition of their pumps. Original spec was 20w40 but that is hard to find today. Same in the transaxle, but that's varied over the years depending on what engineer wrote the manual. 80/90 or engine oil. The loader versions also spec engine oil.

I've been told that is due to the type of pump and hydraulic motor used. Seals are not a problem with either, but the drive motor prefers engine oil.

and there is a lot of history where hydraulic oil was substituted resulting a really s l o w tractor/loader.

I'm trying to wrap my (feeble) mind around what the type of oil used in an (oddball) "hydraulic drive" garden tractor has to do with explaining why a classic tractor with an all-mechanical transmission without any sort of hydraulic clutch has ceased to propel itself.

Of course, if it should come to be determined that the O.P. has not correctly identified the subject tractor what I wrote may not apply.

 

[rustred]

Don’t they have that extra gear shift to stop movement.

well the wd45 does, its like a hand clutch. i presume the wd is the same only is more h. p. well well just reread it and u admit it has the hand clutch !

 

[rustred]

and when a clutch wears out it will eventually cause the tractor not to move. you should be able to figure that out.

 

[sammydwm]

I was driving back from the fueling station on my ‘52 AC WD, about to switch the hay spear out for the bush hog, when all of a sudden it just stopped moving. No reverse, forward, nothing. I checked to make sure the hand clutch was engaged, it was, clutch still had the same tension etc. Then I remembered that my son had added a bunch of hytran after we blew the seals in the loader. I went to get the bucket to top it off and realized it was still full, but a bucket of 15w-40 was now nearly empty. I checked the dipstick and sure enough, oil. I’m about to flush the system and put in hytran, but would the oil cause damage? Did I possibly lose the pump? Thanks in advance.

there is no pump for your tranny....

 

[Janicholson]

I was driving back from the fueling station on my ‘52 AC WD, about to switch the hay spear out for the bush hog, when all of a sudden it just stopped moving. No reverse, forward, nothing. I checked to make sure the hand clutch was engaged, it was, clutch still had the same tension etc. Then I remembered that my son had added a bunch of hytran after we blew the seals in the loader. I went to get the bucket to top it off and realized it was still full, but a bucket of 15w-40 was now nearly empty. I checked the dipstick and sure enough, oil. I’m about to flush the system and put in hytran, but would the oil cause damage? Did I possibly lose the pump? Thanks in advance.

I also believe the clutch is at fault. I have seen them that stripped shaft splines, lost the torsion springs, broke the torsion hub stampings, lost all the friction material from the driven disc, and just worn out. If there is an access hole, or removable plate look there first. Pulling the shifter out and looking past the rails you might see the gears move, or not with it running. Any noise?? Jim

 

[Blackhole49]

I'm trying to wrap my (feeble) mind around what the type of oil used in an (oddball) "hydraulic drive" garden tractor has to do with explaining why a classic tractor with an all-mechanical transmission without any sort of hydraulic clutch has ceased to propel itself.

Of course, if it should come to be determined that the O.P. has not correctly identified the subject tractor what I wrote may not apply.

X2

 

[kencombs]

I'm trying to wrap my (feeble) mind around what the type of oil used in an (oddball) "hydraulic drive" garden tractor has to do with explaining why a classic tractor with an all-mechanical transmission without any sort of hydraulic clutch has ceased to propel itself.

Of course, if it should come to be determined that the O.P. has not correctly identified the subject tractor what I wrote may not apply.

You did note that my post was a response to Geo, didn't you? regarding oil vs hyd fluid. And just a general comment that 15w40 is an acceptable hydrualic fluid in most loaders. Not about the tractor movement at all.

 

[Beatthedrums86]

I'm trying to wrap my (feeble) mind around what the type of oil used in an (oddball) "hydraulic drive" garden tractor has to do with explaining why a classic tractor with an all-mechanical transmission without any sort of hydraulic clutch has ceased to propel itself.

Of course, if it should come to be determined that the O.P. has not correctly identified the subject tractor what I wrote may not apply.

I promise it’s a 52 AC WD

 

[Beatthedrums86]

No noise at all. Thanks very much for the advice, im going to pull the battery box off and get down in there tonight or tomorrow. I’ll update the thread with my findings. Thanks again everyone.

 

[showcrop]

The only benefit to using UTF, or Hytran in your WD is if you need "milkshake" oil.