bucket lifting front end

[Mtsoxfan]

I have a New Holland TC29D that I've been putting through the paces lately. Today, while I was trying to put the MMM on, I tried to lift front wheels off ground using bucket. It couldn't get the wheels off the ground, and I still had plenty of piston left. I was at 2500 rpm.

By going though paces, I've been draging and lifting logs. Only one could I lift to 30% of hieght, and moving dirt. Only that one log was the only one to strain the system.

Fluid level it at max, and it;s clean, no bubbles.

Ideas?

 

[jaydee325]

Check the relief valve pressure settings. There should be at least 2. One on the loader control valve and one on the 3 Point Hitch hydraulic circuit. The lower of the two will control overall pressure.

 

[oldnslo]

Were you in neutral when trying lift the front tires? If not try in neutral since the rear tires must roll to lift the front very much.

my tractor will not lift front without putting gear range in neutral or feathering HST forward while lowering the loader.

 

[Mtsoxfan]

Yes. It has to be in nuetral to start, and since I wasn't moving it, I kept it there.
I will double check in the am, just to be sure...

 

[dodge man]

Sometime it depends on the angle of the bucket. If it roll backed all the way it won’t lift as easily. Dump the bucket some so just the cutting edge is on the ground it will lift easier. Full dump the bucket will lift the easiest and highest but your cylinders are fully extended and easier to bend like this.

 

[LouNY]

Often trying to get the last couple of inches of hydraulic cylinder stroke on a loader is difficult because of the geometry
of the loader frame.
Many times as has been mentioned curl the bucket down then try.

 

[Mtsoxfan]

Sometime it depends on the angle of the bucket. If it roll backed all the way it won’t lift as easily. Dump the bucket some so just the cutting edge is on the ground it will lift easier. Full dump the bucket will lift the easiest and highest but your cylinders are fully extended and easier to bend like this.

Thanks, tried that as well. I know I used to be able to pack down dirt, lifting my wheels. But the bucket was 1 foot or more higher than normal ground level. I will try that again today to see if it still does that.
My big concern was that by lifting a log that my tractor couldn't lift more than 30% of its range, that I may have caused something.

 

[dodge man]

I often lift stuff that is beyond my loaders capacity. It might just lift it a few inches or not at all. Usually this is something like a log and I just cut some off if I can’t lift. Normally nothing is harmed and you can here the pump go into relief.

 

[npalen]

For what its worth, the loader does lose lift capacity as it raises and significantly reduced at full height.
This is because the distance from the centerline of force (the lift cylinder) moves closer (distance) to the pivot point of the loader arms as the loader is raised. Torque equals force times distance.

 

[Vigo327]

In neutral AND with the brakes released.. Did you perhaps use the parking brake last time you parked it and forget it was on? I could also see some types of 3pt implements sitting on the ground acting as enough of a brake to cause this.

My B8200 won't lift the front if it's not in neutral (unless im rolling it forward some with the hst), or if the brakes are on.

 

[Root Cause]

I have heard others say to raise the bucket to its highest level,lower and repeat.

I had the same issue and when I did it, it seemed to work but then realized that I had tilted the bucket as well. It doesn't cost anything to try it. I am not sure if there is any merit to this or not I only know that was weeks ago and been working fine. good luck.

 

[Bill Guenthner]

Were you in neutral when trying lift the front tires? If not try in neutral since the rear tires must roll to lift the front very much.

my tractor will not lift front without putting gear range in neutral or feathering HST forward while lowering the loader.

Interesting. My FEL will lift the front end in all conditions. I have to go easy on the lever when digging into a pile of dirt or rock (in forward gear) to keep the front wheels on the ground. I can drag in reverse with the front wheels off the ground when spreading topsoil or gravel.

 

[Vigo327]

My b6100 loader is weaker than my b8200 loader yet it will lift the front 'no matter what' while the b8200 won't. I don't think it's much reflection of the actual performance of the loader for doing loader work, just a reflection of a bunch of other factors like how much weight is in front of the tractor's rear axle, how far the bucket is from the rear axle, how much traction the rear axle has in the first place (my b6100 has empty turfs, 8200 loaded r1s) etc etc.

If the loader works fine in every other way, i wouldn't read anything into whether it needs a little help pushing the front end up.

 

[Mtsoxfan]

Splitting wood all day so I didn't try anything. In the past week, I was filing in an area to create a road. I was in gear, and compacing the dirt with bucket. I've also llifted the front end by digging to deep.

I will try all suggestions tomorroow, for now, I do believe I've earned Happy Hour...

 

[Mendonsy]

Another thing that has not been mentioned ....
The loader lift cylinders have a lot more cross section for the hydraulics to work with when extending than when retracting because their shaft diameter is large. This means they can generate a lot more lift force than they can lowering force.
I'm not familiar with your particular loader, but all hydraulic cylinders can generate more force when extending than when retracting because of the difference in cross section.

 

[mikester]

Quick...tell the wife you need to buy a new bigger tractor while you get a premium for the old one!

 

[npalen]

Are we talking here about lifting the tractor front wheels off the ground by rolling the bucket forward or with the lift cylinders? Just curious as I'm thinking that anything preventing the tractor rolling would apply only when using the "roll the bucket" method.

 

[Mtsoxfan]

Are we talking here about lifting the tractor front wheels off the ground by rolling the bucket forward or with the lift cylinders? Just curious as I'm thinking that anything preventing the tractor rolling would apply only when using the "roll the bucket" method.

lift cylinders

 

[Vigo327]

Lift cylinders here too. It does still try to pull the tractor. Just like the buckets moves rearward when lifting to max height, it also moves rearward when lowering to lowest position. It is farthest forward somewhere about 3-4 feet up.. The bucket moves in an arc. Skid steers often have 'vertical lift' designs where extra linkages are used to make the bucket not move forward or backward as it goes up and down, but tractor loaders are all regular old 'radial lift'.

 

[Mtsoxfan]

Sorry, roll. I was helping a neighbor clean out hhis horse area of manure/urine soaked hay. i discovered that i roll to lift front end. thanks to all...













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