Garden
Experienced gardeners share their insights in answering this question :
First under the mower to see if a wire got disconnected .then trace wires to see if there is a fuse .or contact the manufacturer
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 :
Belt-the number one cause for your blades not to engage is that your belt is either stretched or loose causing it to slip or fall off completely. Belt could have snapped also. When you are trying to process too much grass/leaves they could pack up under your deck and push off your belt.
Worn or broken blade drive belt – If the riding mower blades are not spinning, the blade drive belt may be worn or broken and unable to engage the blades. If the belt is intact, inspect it to see if it`s loose or slipping on the pulleys then replace it with a new one if necessary.
If the PTO clutch is not getting power, if the clutch solenoid is defective, or if the clutch is worn out, the lawn mower blades will not engage. The PTO clutch is not repairable—if the clutch is defective, you must replace it. Need help finding your model number? The PTO switch provides power to the PTO clutch.
An improperly routed belt can cause the engine to die when the blades are engaged. To check belt routing, lower the deck to its lowest setting and remove the belt guard by the drive pulley. Next, lift the belt over the pulley and remove the pins that support the deck at the rear.
Power take-off (PTO) clutches provide a mechanical disconnect between the power created by gas and diesel engines or electric motors to another piece of equipment. The PTO clutches enable the transmission of that energy to auxiliary equipment that does not generate its own power.
If your mower blades will not turn after the blade controls have been engaged, your deck belt may be broken. The deck is located directly under the operators seat. This belt spins the mowers blades and runs through a pulley system of idlers. The exact configuration of the deck belt will depend on your model of mower.
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.
On a Putzmeister MR 688 series the PTO Pump/Drive switch gets its power from a fuse located in the Mack fuse block.
This operation is crucial to the overall functioning of riding mowers, and thus PTO clutch repair may need to be immediately performed on riding mower models that have a failed clutch. Fortunately, you can fix your clutch irrespective of your experience with PTO clutch installation.
A dried out or sticky pin is one of the most common reasons for blades to stop spinning. If they spin easily and there`s no resistance, try turning your fan on and see if the pin spins. If it doesn`t, the problem isn`t the pin and there is probably a short in the motor.
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.
The difference in air pressure across the two sides of the blade creates both lift and drag. The force of the lift is stronger than the drag and this causes the rotor to spin.
Discover Relevant Questions and Answers for Your Specific Issue
the most relevant questions and answers related to your specific issue
Have a cub zero turn 52 inch cut the blades wont engage it starts but when you pull the switch to turn on the blades it wont engage any help?
ANSWER : Sounds like one of three possible problems ….one – there are safety switches that prevent engagement of the blades,,,,,two – the electric switch which engages the electric clutch blade pulley is bad….or three – the electric clutch blade pulley assembly is bad…..first…..make sure all ur connections are tight to the safety switches and electric clutchblade pulley…..then, if your able to read and follow a wiring diagram, get the wiring diagram for your tractor and a 12 volt probe light (with probe point end) with a ground lead….first, ground the clamp end to the frame and probe at the electric pulley clutch plug to see if power is getting there…if not…follow the wiring diagram to the next switch location the power lead comes from….if one side of the swtich shows power and the other side doesn’t with the switch in the correct run position….then the switch or connection is bad…..if it probes okay…go to the next switch….follow this logic from both sides of the from the electric pulley blade clutch plug until you isolate the switch or plug problem….if everythin tested is good….then it’s the electric clutch pulley assembly that need replacing…..hope this helps…..
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When I hold the bar down that engages the blade it will not cut?
ANSWER : Is the blade sharp?
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My PTO switch does nothing – blades do not engage – how do I fix? I pull up the switch and nothing happens. Model is YTH2448T serial # is 279200, I think it is a 2006 model. Help – please.
ANSWER : With test light check for power at the switch and at the plug of the pto. There might also be a fuse blown. You can always check the pto by jumping power from the battery to the pto with engine off and you can hear it click and see it move to verify that pto is not the problem.
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I started the mower but the blades will not turn. I shut it off and was able to manually turn the blades by hand. I also was able to turn the belt wheel under the engine and have it turn the blades. With it running and me on the seat, they don’t turn. With it running; brake engaged; and I pull the mower switch to engage them, the mower wants to die. Two questions: Is there a swtich on the seat to insure the blades can not turn while no one is on the seat? Is there a key between the belt wheel and the PTO shaft that needs to be replaced? Thank you.
ANSWER : Most all riders have a safety seat switch now and they do malfuction alot. They are under the seat and are ez to replace most of the time. First look for a wire that is grounding due to rubbing a sharp object. That can be fixed with black tape
Good luck!!!
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Pull cord is difficult to pull after third pull becomes stuck but will turn if pull hard repeats every three to four pulls.
ANSWER : No response to clarification request.
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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…
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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.
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Blade won’t engage – mower starts and propells itself, but when the yellow arm is pulled and lowered to engage the blade, nothing happens.
ANSWER : The blade is probably belt driven, and the belt is either broken, need adjusting, worn that bad, or there is a pulley problem. Get it in the air and check that the belt tightens. It will not be completely tight, there should be a tiny bit of play when engaged.
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