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how to repair a john deere hydrostatic transmission

by Miss Alena Lindgren MD Published 3 years ago Updated 2 years ago
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First of all, detach your hydrostatic transmission and restore the fluid. However, there is no specific procedure for replacing transmission fluid in your john Deere without eradicating the transmission. Then you must have your original replacement parts.

Full Answer

What are some common John Deere transmission problems?

  • Why Problem Occurs in John Deere 100 Series Transmission System?
  • 5 Common John Deere 100 Series Transmission Problems and Their Solution: 1. Neutral, not engaging 2. Lawnmower not moving after changing wheel 3. Sudden stop 4. Gear getting stuck 5. ...
  • Overall performance of John Deere100 lawn mower
  • Bottom Line

What transmission does John Deere have?

You can shift-on-the-go with some models but to get the longest life most brands suggest you push down on the clutch/brake pedal and then shift to the speed you want. John Deere originally used a CVT in conjunction with a manual transmission on the Model 110.

How do you troubleshoot a hydrostatic transmission?

  • Examine the oil reservoir. Refill it if needs be.
  • Check either if it has any leakage or any of its connection is faulty. ...
  • Lastly, inspect the interiors as in the cooling fan and the wires. ...

How to repair hydrostatic transmission?

How to Troubleshoot the Hydrostatic Transmission in a Cub Cadet

  1. Set the front of the tractor against a stable post or wall that is in a fixed position. The object the tractor is leaning on must not move.
  2. Jack up the tractor's rear. Both rear wheels must be one inch off the ground.
  3. Put the drive control levers in neutral, disengage the parking brake, start the tractor and idle it high.

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How do I service my John Deere hydrostatic transmission?

0:0716:21How to Service a John Deere Hydrostatic Transaxle 345 335 355DYouTubeStart of suggested clipEnd of suggested clipSo we've got to change those two filters and then we need up to 5 gallons of the John Deere highMoreSo we've got to change those two filters and then we need up to 5 gallons of the John Deere high guard transmission and hydraulic oil I think it takes four point three cords.

How do you troubleshoot a hydrostatic transmission?

Troubleshooting Hydrostatic Drives If the system is overheating, check the oil level in the tank, inspect the heat exchanger, check the inline pressure filters, inspect the crossport relief valves, and check the pump and motor case drains for excessive bypassing.

How do you fix a hydrostatic lawn mower?

2:494:09Fix Your Hydrostatic Transmission Problems Fast - YouTubeYouTubeStart of suggested clipEnd of suggested clipOff then check the oil level in this case you can try changing your transmission oil and filter. IfMoreOff then check the oil level in this case you can try changing your transmission oil and filter. If you cannot service your transmission.

What causes a hydrostatic transmission to lose power?

By far, the most common reason for hydrostatic transmission failure is old hydraulic fluid. John Deere states that "Operating outside of the recommended oil air temperature range may cause premature hydrostatic transmission failure." Oil must be changed when its anti-foam additive decays.

Why is my hydrostatic mower not moving?

A hydrostatic lawn mower may not move because of a bad drive belt; bad tensioner pulley; broke tensioner spring; old or low hydraulic fluid; hot hydraulic fluid; air in the hydraulic system; or the drive release handles are in the “released” position.

What are the most common causes of hydraulic system failure?

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.

Can you damage a hydrostatic transmission?

If you attempt to push a tractor with a hydrostatic transmission, it causes fluid to move backward through the pump and can damage the seals. You must disconnect the drive before moving your lawn tractor.

What type of fluid goes in a John Deere hydrostatic transmission?

Use John Deere Low Viscosity HY-GARD™ (J20D) transmission oil to reduce transmission noise and to increase response time for the hydraulics and power steering.

Why won't my mower move forward or backwards?

A blocked fuel filter can keep gasoline from flowing to your mower's engine in adequate supply, resulting in a lawn mower that isn't drivable. Damaged or clogged air filters also can prevent your lawn mower from going forward or in reverse simply because the engine will overheat quickly.

Why won't my mower move forward or backwards?

A blocked fuel filter can keep gasoline from flowing to your mower's engine in adequate supply, resulting in a lawn mower that isn't drivable. Damaged or clogged air filters also can prevent your lawn mower from going forward or in reverse simply because the engine will overheat quickly.

How do I know if my hydraulic pump is bad?

6 Signs That You Might Need To Repair Your Hydraulic PumpInterior Leaks. Liquids should remain in the tubes that were designed for them. ... Exterior Leaks. Have you discovered liquid on the outside of your pump? ... Heat Degradation. ... Water Contamination. ... Failing Seals. ... Slow Performance.

What kind of fluid do you put in a hydrostatic transmission?

The fluid recommended for Hydro-Gear transmissions and pumps is a 20W-50 motor oil or 15W-50 synthetic motor oil. If the machine has oil reservoirs, they are mounted to the frame behind the seat, for easy access and oil level check accessibility.

Can you damage a hydrostatic transmission?

If you attempt to push a tractor with a hydrostatic transmission, it causes fluid to move backward through the pump and can damage the seals. You must disconnect the drive before moving your lawn tractor.

How long did it take to install a John Deere transmission?

It took two of us 5 hours (seemed like half that) to remove and install the new Hydrostatic transmission and what a feeling of accomplishment! The John Deere transmission upgrade kit and the documentation was one of the most complete and easy to understand I’ve ever read – the pictures basically walked us through the entire project step by step.

What transmission is used for John Deere L130?

Tuff Torq K66 hydrostatic transmission / transaxle that will replace your weak or worn-out K46 with a K66 which applies to John Deere L130, L120 & others

What transmission is a Tuff Torq K66?

A brand new Tuff Torq K66 Hydrostatic transmission.

Does John Deere have a transmission?

The fact is, John Deere installed a completely “non-serviceable” transmission in their “L” series Lawn Tractors, know that their transmission will break down under normal conditions, and worse, charge you $1,800 for the K66.

Does a tractor have a fluid level check?

Your tractor does not have a method for checking or changing the fluid level of the hydrostatic transmission.

John Deere Hydrostatic Transmission Problems

The hydrostatic transmission is used to transfer power from the motor to hydraulic pumps to run the wheels. It is used in tractors and zero-turn mowers nowadays.

Frequently Asked Questions (FAQs)

The worn out oil fluid may inhibit your hydrostatic transmission movement in most of cases. Besides, old drive belts and air filled lines can also restrain the movement of your hydrostatic transmission.

Final Verdict

To ensure proper maintenance of your John Deere transmission, be very careful of the mower as well as all the parts of your vehicle.

Where is the drive shaft on a hydrostatic pump?

The drive shaft connects to an input shaft on the hydrostatic drive pump/motor and passes straight through, exiting the rear of the drive unit via a splined shaft. This splined shaft fits into a splined socket in the PTO clutch, which sits directly behind the front cover. There is a pair of idler gears in the front cover, driven off a gear on the PTO clutch, these gears are what drives the hydraulic pump.

What causes a hydro drive to break?

The U joints are known to fail without regular maintenance. This can also lead to breaking the input shaft on the hydro drive. Power is transmitted from the drive shaft, straight through the hydro drive motor to drive the PTO clutch. There is an idler gear that drives from the PTO clutch to the hydraulic pump. The bearings on the idler gear/shaft are also known to fail, the gear can drop and no longer drive the pump.

How many John Deere tractors are there?

A: John Deere has 3 model 316 garden tractors, the 1978 316 with a 16 horsepower 1 cylinder Kohler engine, a 1983 to 1986 316 with a 16 horsepower Onan engine, and a 1987 to 1992 316 with an 18 horsepower Onan engine. It is normal that they will do this sometimes.

Does a tranny transmission leak oil?

There are no rattles or weird noises from the tranny whatsoever. There are no oil leaks except one that could be caused by a worn rubber seal, or the nut that holds the seal, that isn't tightened up properly. The manufacturer of the transmission is Hydrogear.

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