ZeroTurn Mowers
Experienced gardeners share their insights in answering this question :
It sounds like you may have a siezed bearing or something jammed in the PTO mechanism. In any case, you will have to strip the PTO to troubleshoot it. A complete PTO replacement will probably not be called for, just the defective part.
How to Identify and Fix Common Gardening Problems ?
We provide a variety of viewpoints on how to identify and fix common gardening problems. Our sources include academic articles, blog posts, and personal essays from experienced gardeners :
Check that all the safety switches are working correctly, it is possible the seat switch is bad or loose plug/ bad wire. Also if battery weak or charging system weak/faulty the clutch will stall out engine, charge battery up with charger and try.
If the engine dies when the blades engage, it could be the result of a damaged safety switch. The first step in assessing the safety switch is to make sure it is plugged in securely. The switch is located underneath the seat, and you may have to remove the seat to reach it.
PTO clutches generally overheat because of improper lubrication/greasing (both too much and too little can cause problems), excessive sideload, or a new installation. Operators are advised to reduce sideload and inspect grease levels first.
If the mowing deck is engaged and the unit is in reverse, the mower will shut down as part of a safety feature.
Powershift PTO engagement problems could be from blocked hoses or fittings, bad connections or ground or the solenoid. Mechanical PTO engagement problems could originate from low air pressure, improper cable installation or back lash too tight.
(1) The blades should always be turned on at full throttle if the mower has a electric P.T.O. switch.
A Dirty Carburetor Can Cause a Lawnmower To Start Then Die
By far, the most common issue that causes a stalled motor is a dirty carburetor. The carburetor on your engine is the thing that draws in air and mixes it with the fuel. Contrary to what the movies might make you think, gasoline itself is not very flammable.
If your riding lawn mower engine dies when you release the brake, there`s a good chance the mower`s seat switch is broken or unplugged. The seat switch stops the engine when it doesn`t detect an operator sitting on the seat to prevent the mower from moving without a driver.
You Lose Power in the Middle of Mowing:
Here`s why this happens and what you can do: Dirty Air Filter on Your Lawn Mower: Clean or replace. Dirty Spark Plug: Clean or replace. Build Up of Clippings & Debris: Clean underside of your lawn mower deck as noted above.
Pump trouble is usually characterized by increased noise, increased heat, erratic operation of cylinders, difficulty or inability to develop full output, decreased speed of cylinders or hydraulic motors, or failure of the system to work at all.
Cavitation can and will cause Structural and Errosive damage. Damaged power take off gearbox and Hydraulic Gear pump caused by over speed when driver forgot to disengage the PTO gear box from the main transmission.
On a Putzmeister MR 688 series the PTO Pump/Drive switch gets its power from a fuse located in the Mack fuse block.
1. You must know the RPM you wish to operate your vehicle at while running your application. We find that most operators generally run anywhere between 1100–1300 RPM, but it can vary.
First, there should be at least a one-third overlap between the shaft and the tube. If you`re using a slip sleeve, the overlap should be approximately 3 inches. If the shaft is too long, it will bottom out and create a conflict between the tractor and the shaft.
Read the volts. If the battery output indicates 12.5 volts or below, charge the battery. The PTO clutch will not engage without sufficient voltage. Look for the in-line fuse between the electrical wiring harness from the lever switch to the PTO clutch assembly under the deck.
ashgrove landscaping: Between 1,500 and 2,000 hours and about three to four years.
If your lawn mower starts, runs briefly, then dies these are the four most common reasons that`s happening: Dirty carburetor / clogged carburetor bowl. Old gasoline that has gone bad. Dirty or defective spark plugs.
As the fuel level drops, a vacuum begins to form in the fuel tank because air can get in to fill the space the consumed fuel occupied. After about 10 or 15 minutes, the vacuum will become strong enough that fuel will stop flowing to the carburetor and the lawnmower will die.
Your lawn mower runs for 30 minutes then dies if you are having issues such as a bad spark plug, air problems, a malfunctioning carburetor, or a faulty gas cap. You may even encounter the issue that your lawn mower runs for 5 minutes then dies.
Condensation inside the gas tank is one culprit, but moisture can also enter the system through a loose or ill fitting gas cap. The best solution is to drain the mower`s gas tank and refill it with fresh gasoline. A clogged fuel filter can also cause a mower engine to die.
Not all clutches need to be adjusted, so you might not have to. If it`s difficult or impossible to shift after installing a new clutch, you likely need to adjust your clutch hydraulic system to allow the clutch to disengage more (it`s also possible something has failed in the clutch hydraulic system).
An overrunning PTO clutch is a device that allows a tractor`s power take-off (PTO) shaft to be driven in one direction, but to spin freely (freewheel) in the other direction. The ratchet mechanism in an overrunning clutch is similar to the freewheel hub on a bicycle.
PTO speed is stated as a percentage of engine speed. An example being the required pump speed of 1000 RPM and having an engine operating speed of 1500 RPM. The percentage of PTO to engine speed would be calculated to approximately two-thirds, or approximately 67 percent (e.g. 1000/1500 = 66.67, or 67%).
To bypass a safety switch on a lawn mower, you will need to disable either the PTO or seat safety switch. Disabling the PTO switch requires cutting the wires near the engine. You must disconnect and cut wires under the mower`s seat to disable a seat switch.
Discover Relevant Questions and Answers for Your Specific Issue
the most relevant questions and answers related to your specific issue
Engine dies if i engage blades or take my foot off the brake
ANSWER : You likely need to replace the brake switch,the seat switch can also cause the same problem.Most likely problem is the seat switch,i would try that first.The pto or the reverse switch can cause a shut down but not until you try to mow,seat switch is the most suspect.
Read Full Q/A … : ZeroTurn Mowers
Engine dies when PTO is engaged. I thinking of replacing the PTO!
ANSWER : It sounds like you may have a siezed bearing or something jammed in the PTO mechanism. In any case, you will have to strip the PTO to troubleshoot it. A complete PTO replacement will probably not be called for, just the defective part.
Read Full Q/A … : ZeroTurn Mowers
When you replace the pto clutch (717-04080), does it have a tight fit with a bracket or does it have a little play.
ANSWER : There shouldn’t be any play in it. This should fit snug unless you have rubber bushings on the bracket mount to help compensate the torque of the belt engaging.
Read Full Q/A … : ZeroTurn Mowers
Have a cub cadet GT 1554. When I engage the pto, it shuts the engine down. Could pto need replacing?
ANSWER : Probably spindles bad, or something wrapped around blades or belt
Read Full Q/A … : ZeroTurn Mowers
I have a Craftsman FS5500 48″ lawn mower. The PTO makes a noise (squeak) for a second when I pull up on the red blade engage knob. The blades do not engage. PTO does not turn. When I push the red button down to disengage there is a brief squeak from the PTO.
It worked well the past month then a little problem 2 weeks ago. It seemed to disengage after mowing a while. Then after sitting for 15 minutes the blades would engage. I used it earlier this week and the PTO won’t turn at all.
Just purchased from the last and original owner a month ago. He said the oil would need to be changed this summer. Could that be part of the problem? Engine runs great!
Also, I need an owners manual, not able to find from the previous owner.
Thanks
ANSWER : Hi,The problem is probably in the button that you pull and push to engaged and disengage the PTO… If you wiggle the button or try to pull it slowly, you may find a spot where it will work. But the button has gone bad and will need to be replaced.If you are comfortable with wiring, you could jumper the wires and getting it working, but it would be a very temporary and possibly dangerous fix…
Read Full Q/A … : ZeroTurn Mowers
When I engage the PTO, the blades don’t egage.
ANSWER : The first thing we need to to do is verify that there is adequate /(power 12 vdc) going to the electric clutch, you can do this by unplugging the clutch and check both wires 1 should have 12 volts and the other wire shoud read infinity to ground if this checks out replace the clutch, if you dont have 12vdc to the wire replace the relay
Read Full Q/A … : ZeroTurn Mowers
While cutting grass the pto clutch cuts off, i have to push switch in and back out to restart blades. I have replaced the switch and pto clutch
ANSWER : Pto kicks in and out while mowing was wondering if its electrical or something else i have a jd 420
Read Full Q/A … : ZeroTurn Mowers
Engine dies when clutch is released or PTO is engaged
ANSWER : Ed in oregon had this solution:”Flop the seat forward, locate the seat switch in the middle of the seat, push the connector onto the seat switch firmly, start it up and drive away”I had worked this problem in the intermittent mode.I tried “ed in oregon”‘s solution and it work straight away.Thanks Ed.
Read Full Q/A … : ZeroTurn Mowers
