Blades won't engage. I hit something, blades quit turning, check belt, its okay. When you hit button to engage blades, you hear click

depending on the age of the machine, there could be several possibilities
1-- belts are not tight enough--- belt tension system is not correct, wrong length belts
2--bearings for the shafts for the blades are rusted up and seized - preventing the blades from moving--- switch the machine off , disengage the belt drive and see if you can turn the blades by hand
3--- if you have an electric pto system to drive the belts to the blades then that system is not getting full power to engage the PTO or the clutch is not working--worn facings
take it to a service dealer and have a proper diagnosis done

Did the smoking stop when you disengaged the blades? If so it is most likely your belt that is smoking. Make sure all the blades turn freely by hand to ensure you have not hit anything that may have bent a shaft on one of the blades. If one of the shafts is bent and wont turn FREELY, the belt driving the blades would slip and start smoking as it tried to turn them.

Number one are you sure you replaced the new blades with the right ones. Another thing if you say you have hit something you may have bent one or both shafts.the blades are fastened to. You can check this out by spinning the blades by hand . Please pull the starting key before you put your hand underneath to check it out.

May have a spindle bearing out.

Your belt may be on wrong or slipping.

The blades on this cub cadet are activated with air pressure. Chances are that when you hit that stump, you either blew a fuse or the control module that allows the blades to spin. Begin by checking the fuses. J.

Is the belt in place that drives the blades?
Is the belt at the correct tension?
With the mower engine off.....try to turn each pulley the belt drives and on the mower deck with the mower in up position and or down....do they turn a little......this is to check for a seized bearing on one of the pulleys also look under the deck for something stuck........ jamming a blade.
Also check for the mower belt safety system (which stops the blades quickly when disengaging them) that may be stuck in stop mode.
With the mower engine running.....have some one engage the blades while you look under at the belt system....is the engine driving the belt.....is the belt driving the blades.
DO NOT TOUCH ANYTHING......MOVING OR STOPPED while the engine is trying to drive the blades.

There should be 2 wires coming off the blade clutch at the bottom of the engine and running over to the frame, check these to see if they have come unplugged or gotten cut. Also look for a fuse under your dash, I am not positive that this model has one but some tractors do have one for the blade clutch. If you don't see any thing wrong there, try turning on your ignition switch without starting the engine then engage the switch for the blades and listen for a loud "clicking" sound, if you don't hear it or it is very faint, you need to further inspect the blade clutch.

No permanent solution, but you probably can get by once by "riding" the clutch engagement lever - pushing it only part way forward and holding onto it.

Hi mate, Although my trade is repairing turfcare machinery, I have no experience with this model, so I will try my best. Firstly, the clicking you hear will probably be the electric clutch engaging/dissengaging. Firstly, see if you can get the clicking with engine off, keyswitch in first position/on/lights on dash. You may have to place something heavy on the seat and have traction pedal in neutral. MAKE SURE YOU DO NOT ENGAGE THE STARTER MOTOR/START THE ENGINE THROUGHT THIS!

Now have a look under the footwell on top of the deck and try to determine where the clicking is coming from, there will be a clutch there somewhere joining the engine drive pulley to a deck pulley, Also at this point check that both belts are on and with the ENGINE OFF! spin the blade/blades with your hand and ensure that the deck belts are not slipping on the deck pulleys. If they are you will need to establish where the tensioning system is. (Sorry i know pretty vague)

Back to the Clutch, once you establish where it is, engage the blades ENGINE OFF! and you should feel a greater resistance turning the blades as you are now turning the engine as well, beware though, it is theoretically possible to start the engine by doing this, but you will almost certainly not be able to spin the blades that quickly by hand.

If it is clicking to engage but not turning the engine pulley when spinning the blades by hand, then try tapping the clutch lightly as it may not be fully dissengaging.

I would put money on it being either one of the belts coming off/snapping, the blades jamming or the clutch not engaging fully.

If you find that the clicking is not the clutch engaging and its actually getting no power to the clutch then you need to go back to the pto switch and go through all safety switches! (good luck, it usually ends up with me bypassing them or running a new cable to the switch,then, smoke, shouting, swearing etc etc!) Either not advisable.

In doing all this you should have been able to have determined the problem be it one that I have mentioned or another.

Hope this helps,
Chris.