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#1
07-26-2015, 12:27 AM
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1782 3 point lift capacity
I put a 3 point on my 1782 and bought a Brinly 3 point blade recently. The blade wasn't cutting in too well, so I hung a couple 42 LB. suitcase weights on it. I had to rev the engine up to about 3/4 throttle to lift it. It has a fresh oil and filter change and cleaning of the rearend. The oil and inside of the rearend looked great when I changed it. I had the same issue with my tandem disk. I realize these are both heavy implements, but the manual for the disk says it can hold concrete blocks in the frame. I assumed that most garden tractors were capable of lifting that much if they mentioned it in the manual. Is it time to look for a problem with the charge pump or was I asking too much of the hydraulic system?
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2 Originals, 100, 105, 125, 1450, 1200, 2 IH 982's, 1211, 2072, 2-1864's, 1782, 3 - 42" front blades, 3 Haban 54" blades, Haban sickle mower, BB36, QA-36A, 42" IH rear blade, 42" IH landscape rake, #1 tiller, #40 box blade, 59M shredder, #2 cart, International 3312 push mower, International 250 power washer, 1952 IH refridgerator, 1971 IH 1210 3/4T 4x4 truck   
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#2
07-26-2015, 12:50 AM
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My 1450 will (slowly) lift ~300# on a sleeve hitch aerator at full throttle. However the weight is very close to the tractor, about .75 feet , which would be 225 ft lbs of torque. You hang 120 pounds 2 feet away from the tractor, that's about 240 ft lbs of torque needed to lift. Sounds about right that you would need at least 3/4 throttle to lift that.
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#3
07-26-2015, 01:53 AM
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The charge pump is just a small gear pump. It doesn't produce much flow but it should produce about 900 pounds pressure if I remember correctly. Running the engine faster doesn't produce more pressure, but it does produce more flow, which would overcome a weak relief valve. I'd suggest putting a gauge on it and checking relief pressure. The service manual tells how to check and adjust the pressure.
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#4
07-26-2015, 08:46 PM
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I had a similar issue with my 2072 and it turned out to be a seal input shaft seal. I'm guessing it was acting as a relief valve when i was stressing the system. Replaced the seal, tightened up the trunion and it's like a different machine!
Maybe take a look for leaks and check the fluid levels to make sure it's not going down? I was going to borrow some gauges to check the pressure but after replacing the seal i'm more than happy with it.
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