1966 Case D530 tc CK

[southernbound]

Hi folks- I've searched but get confused on this subject. I obviously need to drain my diff fluid/trans.lol. The boot over shifter was off. Hopefully thats were the moisture is coming from.

My question is..Manual calls for 80-90 gear oil.. Alot of ppl run same type of hydro fluid in both.. I want to do this as well. Is the travellers premium universal stuff rated to replace case hytran a good substitute? I really dont wanna go cheap, it's just the closest IH case dealer is 1.5 hrs.

That being said..This is my house tractor. It's barely used. If it snows, I'm pushing a 2 car driveway, light lanscaping/digging holes. Currently getting ready to build a pole barn so this tractor will be getting used a bit...I just want a good substitute to put into trans/diff.

The reason I'd like to use same fluid is I'm not sure if some of this milky discoloring is cross contamination either.

 

[southernbound]

Forgot to mention that the machine seems to be loosing power to rear wheels (no real pushing power) Its ok when barely used but once warmed it doesnt have much. I assume its because of this nasty looking fluid..

 

[southernbound]

I could be completely wrong about all of this btw since I'm new to tractors..lol

 

[southernbound]

I decided to remove cover. I just couldnt handle knowing if I got all the sludge or if there were broken pieces in there... I'll begin flushing/cleaning with diesel fuel tomorrow.

 

[southernbound]

Of course removing cover was a challenge.Grinding off bolt heads that were on there for the last 50 or so yrs

 

[KYErik]

I have a very similar machine (late 60's 530 construction king backhoe). Do you have a tourque converter model? If so, how is your clutch pressure? I run 90 weight in the rear end and cheap hydraulic fluid in the torque convertor.

 

[TomSeller]

Looks fairly clean considering all the entrained water in the oil.

 

[southernbound]

Yes its a TC model. My pressure is lousy...My next goal is to drain that. Not sure if I'm going to buy the case hytran stuff for that. I dont have a case dealer near me. I'd ideally like to run the premium travellers in it cause its convinient and states its rated for case replacement but idk. I did buy 80-90 for the rear. As soon as I finish flushing it out I'll fill it. Is there any adjustments I can make to the TC without splitting the tractor?

 

[southernbound]

Looks fairly clean considering all the entrained water in the oil.

Yeah..I was pleasantly surprised. No chipped teeth or metal bits at all..

 

[southernbound]

Are these tractors possi rear? I dont seem to have a differential lock i dont think. does anyone have a pic of where theirs is located?

 

[KYErik]

There is no diff lock that I know of. I found a copy of the owners manual on ebay and read it pretty thoroughly.

Mine is the same way- I have better clutch pressure when it is cold and it slips worse and worse as it gets hotter until I eventually have trouble getting up a hill in 1st in low range. My trans pressure needle never makes it up into the green range of the gauge even when cold... I tried running some 40 weight hydraulic oil in it but i couldn't tell much difference. There is a spring loaded pressure relief valve under a plate on the left side just in front of the battery. I took that all apart hoping that there was just something caught under the seat of the valve and that was causing the low pressure, but it was clean. Otherwise, no adjustments/easy fixes. There is a canister type filter for the torque converter fluid just in front of the radiator (you will need to remove the metal grille). You could try replacing that filter- I did that and it didn't help. I also rigged up a trans fluid cooler, but couldn't really tell whether it helped. I asked the dealer about it and apparently there are some steel sealing rings on pistons that compress the clutch main clutch pack and supposedly, those sealing rings typically wear and break and leak enough fluid to reduce the pressure. It has been 6-8 years ago, but I priced all of the parts and they were about $500-600 (but of course you have to split it).

 

[southernbound]

Thx, I'll try those filters/breathers first. Hard to believe they made this without a differential lock. I'll keep searching