slow loader

[kenmac]

Just wondering if anyone has had a problem with the loader slowing down and not picking up as ,much when operating in hot weather for an extended period of time ? I have noticed this in my loader.. Seems like the hyd oil is getting to hot possibly thinning out. Possibly hyd pump oil cavitating when it gets hot ?? will changing to transmission prevent it ? Any one else experienced this ?

 

[winston1]

I haven't experienced it. I would think thinning with temperature rise. I don't understand "will changing to transmission prevent it?".

 

[kenmac]

Sorry , that should have read transmission fluid. When I run the tractor most of the day (using loader) when temps are in the 90 or so ..I think the fluid thinning to the point that the pump isn't moving much fluid.. Every thing works great until it gets hot.. I may just replace the pump with 1 of the higher volume pumps this winter ,and see if it helps or find a way to keep the oil cooler

 

[J_J]

Just wondering if anyone has had a problem with the loader slowing down and not picking up as ,much when operating in hot weather for an extended period of time ? I have noticed this in my loader.. Seems like the hyd oil is getting to hot possibly thinning out. Possibly hyd pump oil cavitating when it gets hot ?? will changing to transmission prevent it ? Any one else experienced this ?

Take a temp reading using a cooking thermometer or heat gun and just see what the temp actually is.

You should use the recommended fluid for your tractor for your climate.

Yes, you could lose some pressure due to thinning fluid.

Look at the fluid for color changes, air bubbles, does it smell old or burned?

Clean your hyd cooler if you have one, and if not, consider adding a transmission cooler.

Our Power-Tracs even have fans to help cool the radiator.

You might do a flow test when cold, pumping fluid cold in a bucket and timing the flow. Then do it after it gets hot using the same engine rpm.

 

[normde2001]

Something is amiss. You need to fix it, not try to work around it. How does 3ph work?

 

[kenmac]

Take a temp reading using a cooking thermometer or heat gun and just see what the temp actually is.

You should use the recommended fluid for your tractor for your climate.

Yes, you could lose some pressure due to thinning fluid.

Look at the fluid for color changes, air bubbles, does it smell old or burned?

Clean your hyd cooler if you have one, and if not, consider adding a transmission cooler.

Our Power-Tracs even have fans to help cool the radiator.

You might do a flow test when cold, pumping fluid cold in a bucket and timing the flow. Then do it after it gets hot using the same engine rpm.

I'm using the recommended fluid.. I haven't taken a temp reading. If I did , I wouldn't know what the temp should be.. The fluid is clean & not burned .. Fluid was replaced last yr. It was doing the same thing when the temps were hot and the loader was getting a work out. I know the return line will burn you if you happen to touch it.

 

[kenmac]

Something is amiss. You need to fix it, not try to work around it. How does 3ph work?

3pt seems to work ok. Haven't really had anything heavy on it when I do loader work. When I have the box blade on it , it's usually in the up position

 

[normde2001]

Can you bypass the loader and see if the fluid temp cools? Probably blockage in loader valve.

 

[kenmac]

I probably could. It has cooled here now. I probably won't have any more problems until next summer. It's not just the fluid. The entire tractor gets very hot. when all that cast iron gets hot , it transfers throughout the entire tractor. I was just wondering if (and I may try it next yr) anyone thought changing to transmission fluid would hold up to the heat better

 

[winston1]

Mine does get pretty hot too with extensive running and use but like you, our temperatures are cooling. I do have a laser thermometer and will check my temperature sometime after working hard but it may not be till next summer. Just making sure, are we talking automatic transmission fluid? I know it is suppose to be better in cold weather according to some reliable reports from Tractor Ernie and MJPetersen. I have a hydraulic log splitter that specs out automatic transmission fluid.

 

[kenmac]

Yes, hyd trans oil.. It works fine in cold / cool weather. In fact I had resisters on the lines to my grapple.. I had to remove the resisters, because last winter my grapple would hardly open the trans oil is so thick. but, hot summer time is a different story, hyd oil thins out when I'm really working the loader and all of a sudden I can't pick up a full bucket . I'll have to remember to shoot a laser temp on it next yr