Bucket dosen't work IH 674

Pam Witt · Jul 17, 2016

Bucket has pressure to lift but not to pull down for back blading, bucket just goes limp

caterpillar guy · Jul 17, 2016

If you have the loader plumbed into the rear valves then,you are pushing the lever to the float position. Don't push it so far. If you have the joystick lever then it is in the oil. IH never had much for hydraulics. Pumps to small for loader work.
Our 574 same tractor has the power beyond plate with the joystick on it. The bucket is floppy till it builds pressure on the cylinders. Has been that way since new in 72. Dealer was not much help either.

Steve@Advance · Jul 17, 2016

Has it always been this way, or something new?

If a new problem, it could be the piston has come off the rod of a cylinder.

Pam Witt · Jul 17, 2016

(quoted from post at 19:23:40 07/17/16) If you have the loader plumbed into the rear valves then,you are pushing the lever to the float position. Don't push it so far. If you have the joystick lever then it is in the oil. IH never had much for hydraulics. Pumps to small for loader work.
Our 574 same tractor has the power beyond plate with the joystick on it. The bucket is floppy till it builds pressure on the cylinders. Has been that way since new in 72. Dealer was not much help either.

It has dual hand levers. What type of hydrolic oil should I use if I replace the oil and do you know how much, part number for filter?
Steve the tractor is new to me so I wouldn't know how long it has been doing this

markct · Jul 17, 2016

Are you sure it has double acting
cylinders, some loaders don't

Pam Witt · Jul 17, 2016

It has a line at both ends of the cylinder so I assumed it was a 2 way cylinder

J. Schwiebert · Jul 17, 2016

What model loader do you have? We have a 674 with an IH 2250 loader. It works good. How many lines go to the bucket cylinder? Do you have one on each end of the bucket?

Pam Witt · Jul 17, 2016

It is an after market loader made in Alberta

casecollectorsc · Jul 17, 2016

Sounds like the system could be very low on oil.

Pam Witt · Jul 17, 2016

Shows full on the dip stick

Janicholson · Jul 17, 2016

If the hoses and lines from the cylinders attach to the control valve, the valve may be set to single acting or float. If the valve is not adjustable, the valve
may not be 2 way. If the hoses/lines are connected to a return to the reservoir, it is set up for no down pressure. Jim

Pam Witt · Jul 17, 2016

I will check that out

BarnyardEngineering · Jul 18, 2016

Do you just jam the levers into the detent position or do you "feather" them to control the loader?

By detent, I mean where they click and stay in position. By feather, I mean move them gently and slightly.

Pam Witt · Jul 18, 2016

Never "Jamb" anything, makes for rough treatment. Generally nice and easy and there is no detent, push forward and release, it returns to neutral position.

pete 23 · Jul 18, 2016

My question is if you keep holding the lever for a bit, will it eventually pressurize the cylinder. With the small pump on that tractor, when you tilt the bucket, the weight of the bucket probably pushes the return fluid out faster than the pump can supply the pressure side, thus floppy. Operating at low rpm's of course make it much worse.

Bucket dosen't work IH 674

Pam Witt

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caterpillar guy

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Steve@Advance

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Pam Witt

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markct

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Pam Witt

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