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I have a 410 john Deere backhoe and the hydraulics move real slow. The problem was thought to be the hydraulic pump so a new one was installed. This did not help as it is still doing the same thing. The pressure control valve was thought to be the problem and was changed but that did not help either.
Took it to the John Deere dealer to have them look at it. I was put on a waiting list as they too many high $$$$ jobs and I am poor boy. They did look at it after calling them many times and said that the oil pump is only putting out 10gpm and should be putting out 12gpm. They said the machi

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The most common causes of poor hydraulic performance are particulate contamination, water contamination, clogged filters, high fluid temperature and incorrect hydraulic fluids.
If the pressure does not build up, the pump or relief valve is bad. If the system is operating at a slower speed, a volume problem exists. Pumps wear over time, which results in less oil being delivered.
Air and Water Contamination

Air and water contamination are the leading causes of hydraulic failure, accounting for 80 to 90% of hydraulic failures. Faulty pumps, system breaches or temperature issues often cause both types of contamination.

Conclusion. hydraulic cylinders go faster by increasing the displacement of the fluid. This can be done in a number of ways, but the most common way is to increase the pressure of the fluid. By doing this, you are able to push more liquid through the cylinder and make it go faster.
Increasing hydraulic flow rate can be done by altering the valves and fittings, increasing the size of the channel, and using a higher pressure pump. Valves and fittings: -Valves can be adjusted to change the amount of water flowing through them. -Fitting sizes can also be changed to increase or decrease the flow rate.
If you want to increase the hydraulic pump pressure in your system, there are a few things you can do. First, you can increase the fluid flow rate into the pump. This will increase the pressure on the fluid, and therefore increase the output pressure of the pump. Second, you can increase the displacement of the pump.
Open the bleed valve at the top for the air to escape. Leave it open until the hydraulic fluid from the valve flows freely. This indicates all the air has been bled out. If the fluid is foamy, pass it through some gauze or alternatively, refill the system with new hydraulic fluid.
Hydraulic pumps can withstand intense working pressure using their sturdy components. However, with time, its components degrade, performance turns sluggish, efficiency decreases, and flow cycle lengthens. If you notice any of these signs in your hydraulic pump, repair or replace your pump.
The most common cause of hydraulic cylinder failure is leaking seals, which not only allow critical fluids to leave the system (including lubricants) but allow damaging contaminants (water, air, and particles) to make their way inside the hydraulic cylinder.
The most common is improper lubrication when the incorrect lubricant is used or not enough is applied. Bearings also fail in extreme temperatures. Another cause of failure is bearing overload, e.g., a pump cavitating from lacking the proper flow will increase pressure on the impeller`s front.
One common way to test a hydraulic pump is to measure the output pressure. This can be done by using a pressure gauge or by measuring the flow rate through the pump. If the output pressure is within specifications, then the pump is likely functioning correctly.
Basically, if the engine is not running correctly or in need of a service, then it cannot provide the necessary power for the hydraulic pumps to supply the flow to run the system. Secondly, check the flexible drive coupling. This could be worn, shattered or even slipping on the drive shaft.
Increasing the flow rate of the fluid is one way to increase torque in a hydraulic motor. You can increase the flow rate by increasing the size of the nozzles or by adding more nozzles to the motor. You can also make modifications to the engine or pump that drives the motor.
Basically, if the engine is not running correctly or in need of a service, then it cannot provide the necessary power for the hydraulic pumps to supply the flow to run the system. Secondly, check the flexible drive coupling. This could be worn, shattered or even slipping on the drive shaft.
Valves control the rate of flow to cylinders and motors (i.e., hydraulic actuator,) which ultimately regulates the speed of these components. Additionally, hydraulic flow control valves regulate the rate of energy transferred at a given pressure, creating work.

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Looking for information on a John Deere tractor S/N CH0850S017329 and the current estimated value of this tractor with approximately 2,700 hours on it.
ANSWER : Can you please post the model number of the tractor? Thanks

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How do i replace a clutch on a JD 3020 tractor
ANSWER : Break it in half, then get with it.

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ANSWER : Flat idler to left of belts is most likely seizing up during use.

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ANSWER : Check drive pulleys and belts.

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ANSWER : Looking at stat top part looks like a handle around it

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Free belt diagram john deere freedom 42 – John Deere 42 in. EZ Trak Bagger
ANSWER :

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What type of oil doe it use – John Deere Gx75 Rx75 Srx75 Sx75 130 9hp Starter
ANSWER : 10W-30 Turf Gard

http://www.greenpartstore.com/John-Deere-GF-3-10W30-Turf-Gard-4-Cycle-Motor-Oil-Quart-TY22029.html

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I have arx75 rining mower when i put it in gear it does not move when i raise the rearend up in the air the tire spin what could be wrong with it
ANSWER : Http://www.fixya.com/support/t9023324-replaced_transmission_john

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