Question about Caterpillar D5g Xl Track Type Tractor By Norscot 55131

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Cat diagram leaking oil out of the hydrostatic pump

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What would cause hydrostatic to stop working

Usually this is due to a low oil/fluid level in the transaxle. Over time, these units develop leaks. Just be sure to install the proper oil/fluid recommended for you unit.

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Signs bad water pump

Water in the oil which would look like chocolate milk. Oil in the cooling system which would look like tar or black dots floating in the coolent. Or a visible leak of coolent on the floor or ground. After checking the hoses and related gaskets for leaks look at the weep hole on the water pump. If there is coolant around the hole then the pump seal is bad.

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How can i fix a leaking hydrostat on 2001 toro timecutter 18/52

you need to clean off the oil and see where the leak is a hose or a seal

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Hi, My Dewalt 3100 pressure washer pump wash leaking water from a check valve or overflow plug Do you know whats wrong?

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You can find the parts diagram at

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It is burning the oil,and it is not noticable ,and the oil pump is either weak,or the cam/crank,rod bearings are worn,and the pressure does not make it up yo the valve train.

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TORO Z5000 zero turn mower. right side

it should hold hydralic fluid there should be a resirvour somewhere on the back along with the pump you should be able to check the level there and if you don't get the leak stopped it will lock up the whole drive system.

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1 Answer

Hydrostatic drive squeels and stops pulling when hot

I had a similar thing go wrong. Even though the hydrostatic drives are designed so that the fluid doesn't need to be changed, If it is a hydrostatic transaxle check to see if it is leaking,if it is then there really is no repair to transaxle. If it isn't leaking then It sounds like the oil in transaxle is worn.The transaxle is supposed to be a sealed unit requiring no service but over time the oil will get dirty enough to cause problems like you are describing.Remove the back hitch plate and look at the transaxle it will have a rubber vent hose or a 1/4 Allen wrench fitting on top. You will need to purchase suction bulb and use it to remove as much oil from transaxle as possible. Warm the transaxle up first by running it around,then suction the oil out.Refill with a good synthetic motor oil 15w-50 or 20w-50 like Amsoil or Mobil 1.Do not use transmission fluid or hydraulic fluid. When adding the new oil back fill it to within 1.5 in from the top,be sure to allow this amount of air space in top of transaxle for expansion

Aug 13, 2009 | Mtd Garden

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