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Recently I had a idler pulley flat come off of my Drive and Transmission area on the frame of my Bronco, and the fault was that the mower failed to move forward or reverse. I reinstalled the components as needed and the mower now is functioning as normal, with the exception that the 42 inch mower deck blades are rotating once the Bronco has ben started regardless of the position of the PTO engage disengage lever on the right side of the power equipment. I've checked the installation and routing of the deck engage cable and it is correct. Any suggestions as what the fix is for this?

Thank you

KER

See pages 8 & 9 in illustrated parts breakdown, it is a manual PTO. Check & see if item 47 with part # 732-04276A is hanging loose or missing. If spring extension is there use your eyes & hands making sure all parts are tight & secure.

"¯\_(ツ)_/¯" No wiring from PTO switch to clutch exists.

If you actually looked at the IPL you would had seen it is a manual PTO.

Well which is it ?

judging from the PTO pulley used, it's a manual engagement with a cable.

Ok so why are the blades engaged when the PTO is not ?

You tell us after you find the problem, like I said above be patient taking your time looking over everything PTO related using your eyes & hands & pages 8 & 9 in parts manual.

With the mower off, check that the spring loaded idler is returning all of the way in the disengaged position, i.e., nothing jambing it.

Mark,
Item # 47 is there and not missing, perhaps the deck engage cable is unserviceable ? When I move the PTO lever there is not tension at all,

Scrubcadet10 said:

With the mower off, check that the spring loaded idler is returning all of the way in the disengaged position, i.e., nothing jambing it.

Click to expand...

No nothing is jamming it, Are both idler pulleys on the drive systems suppose to spin? You are referring to the spring loaded idler on the mower deck correct?

Yes, we're talking about the deck now.,, and to answer your question on the drive pulleys, yes, both are supposed to spin.

let me put on my thinking cap

I need to check the front idler pulley that may be the problem as that pulley is tight and does not spin. I will need to pull the plastic cap off the panel so I can access the nut on top and loosen that an d get that idler pulley to spin . I removed mower deck this afternoon and the mower works fine in fwd and reverse since I reinstalled the front idler pulley that fell off as the top jamnut was missing?

I would have to go with the Idler pulley that was reinstalled that is not spinning as the reason why the PTO is engaged. More to follow once I know for sure.

KER said:

I would have to go with the Idler pulley that was reinstalled that is not spinning as the reason why the PTO is engaged. More to follow once I know for sure.

Click to expand...

Do you mean Idler pulley for the DRIVE or the DECK/blades?
a pulley not spinning on the DRIVE belt will not affect the Deck belt or deck pulleys.

The idler pulley for the drive underneath the engine deck. There are two idler pulleys between a bracket that has a rod that connects to the trans foot bypass pedal for the drive transmission. Or the deck engage cable is defective ?

Hello Scrubcadet10,


Okay here is the latest with my 2011 Troybilt Bronco Model # 13WX78KS011.
I had replaced the deck engagement cable, readjusted the double idler pulley on the drive transmission assembly, and started the OPE and the PTO engagement handle was pertaining as it should and the Troybilt Bronco was FMC once again. I put the double bag system back on the mower and again everything was working as it should. When I engaged the PTO the deck belt came off the deck pulley that is to the right of the engine pulley. I took the far left deck belt cover from the mower deck, and rerouted the deck belt thru the pulleys and reinstalled the left drive belt cover. I restarted the OPE and the following was the result. When I engaged the PTO (Forward) nothing happened, however when I pulled the PTO engagement lever to disengage the the deck blades the blades began to rotate under the mower deck? I shut down the OPE. With the PTO being manual, I’ve checked the tension spring and that is installed correctly, replaced the deck engage cable and that corrected the problem with the deck blades rotating when I started the Troybilt Bronco, and engaged the PTO.. Now as mentioned above when I engage to the forward position the PTO nothing happens with the deck blades rotating until, I move the PTO lever in the rearward direction to disengage the PTO and the deck blades begin to rotate. Any suggestions as to why?

StarTech said:

"¯\_(ツ)_/¯" No wiring from PTO switch to clutch exists.

If you actually looked at the IPL you would had seen it is a manual PTO.

Click to expand...

Okay here is the latest with my 2011 Troybilt Bronco Model # 13WX78KS011.
I had replaced the deck engagement cable, readjusted the double idler pulley on the drive transmission assy, and started the OPE and the PTO engagement handle was pertaining as it should and the Troybilt Bronco was FMC once again. I put the double bag system back on the mower and again everything was working as it should and then when I engaged the PTO the deck belt came off the deck pulley that is to the right of the engine pulley. I took the far left deck belt cover off the the left of the mower deck, and rerouted the deck belt thru the pulleys and reinstalled the left drive belt cover. I restarted the OPE and the following was the result. When I engaged the PTO (Forward) nothing happened, however when I pulled the PTO engagement lever to disengage the the deck blades the blades began to rotate under the mower deck? With the PTO being manual, I’ve checked the tension spring and that is installed correctly, replaced the deck engage cable and that corrected the problem with the deck blades rotating.
When I started the Troybilt Bronco, and engaged the PTO.. Now as mentioned above when I engage to the forward position the PTO nothing happens with the deck blades rotating until, I move the PTO lever in the rearward direction to disengage the PTO and the deck blade's begin to rotate. Any suggestions as to why?

mechanic mark said:

https://www.troybilt.com/en_US/manualsearchresults

See pages 8 & 9 in illustrated parts breakdown, it is a manual PTO. Check & see if item 47 with part # 732-04276A is hanging loose or missing. If spring extension is there use your eyes & hands making sure all parts are tight & secure.

https://www.google.com/search?q=TROY+BILT+PART+732-04276A&oq=TROY+BILT+PART+732-04276A&aqs=chrome..69i57.45539j1j4&sourceid=chrome&ie=UTF-8

Click to expand...

Okay here is the latest with my 2011 Troybilt Bronco Model # 13WX78KS011.
I had replaced the deck engagement cable, readjusted the double idler pulley on the drive transmission assembly, and started the OPE and the PTO engagement handle was pertaining as it should and the Troybilt Bronco was FMC once again. I put the double bag system back on the mower and again everything was working as it should. When I engaged the PTO the deck belt came off the deck pulley that is to the right of the engine pulley. I took the far left deck belt cover from the mower deck, and rerouted the deck belt thru the pulleys and reinstalled the left drive belt cover. I restarted the OPE and the following was the result. When I engaged the PTO (Forward) nothing happened, however when I pulled the PTO engagement lever to disengage the the deck blades the blades began to rotate under the mower deck? I shut down the OPE. With the PTO being manual, I’ve checked the tension spring and that is installed correctly, replaced the deck engage cable and that corrected the problem with the deck blades rotating when I started the Troybilt Bronco, and engaged the PTO.. Now as mentioned above when I engage to the forward position the PTO nothing happens with the deck blades rotating until, I move the PTO lever in the rearward direction to disengage the PTO and the deck blades begin to rotate. Any suggestions as to why?

I always find that putting up pics always helps.
Is there a way to take a few pics of your deck?

Fish,
I have done that and yes that is what she looks like.

Thank you

mechanic mark said:

You tell us after you find the problem, like I said above be patient taking your time looking over everything PTO related using your eyes & hands & pages 8 & 9 in parts manual.

Click to expand...

MM,
BTW I did look at p 8 9 of the IPL.



Okay here is the latest with my 2011 Troybilt Bronco Model # 13WX78KS011.
I had replaced the deck engagement cable, readjusted the double idler pulley on the drive transmission assy, and started the OPE and the PTO engagement handle was pertaining as it should and the Troybilt Bronco was FMC once again. I put the double bag system back on the mower and again everything was working as it should and then when I engaged the PTO the deck belt came off the deck pulley that is to the right of the engine pulley. I took the far left deck belt cover off the the left of the mower deck, and rerouted the deck belt thru the pulleys and reinstalled the left drive belt cover. I restarted the OPE and the following was the result. When I engaged the PTO (Forward) nothing happened, however when I pulled the PTO engagement lever to disengage the the deck blades the blades began to rotate under the mower deck? With the PTO being manual, I’ve checked the tension spring and that is installed correctly, replaced the deck engage cable and that corrected the problem with the deck blades rotating when I started the Troybilt Bronco, and engaged the PTO.. Now as mentioned above when I engage to the forward position the PTO nothing happens with the deck blades rotating until, I move the PTO lever in the rearward direction to disengage the PTO and the deck blade's begin to rotate. Any suggestions as to why?

That's odd. those engagement systems are pretty simple.......

Well, I meant that the pictures you take, you should post them on here.

Deck belt routed incorrectly is a good possibility. As the moving idler is pulled to engage the blade brakes by it tension spring it is engaging the belt tension. And when the normal PTO engage position is disengaging the deck belt tension.

StarTech said:

Deck belt routed incorrectly is a good possibility. As the moving idler is pulled to engage the blade brakes by it tension spring it is engaging the belt tension. And when the normal PTO engage position is disengaging the deck belt tension.

Click to expand...

I will recheck the belt routing and ensure all the components are in place ie the bracket belt guard( 2 ea # 54) for the idler pulleys (2 ea # 48)

Thank you

TROYBILT 42 IN G TWIN BLADE DECK 13WX78KS011


By chance which of the 3 holes in the L/H #32 and R/H #33 on the deck hanger rods upon reinstallation of the mower deck ?

KER said:

TROYBILT 42 IN G TWIN BLADE DECK 13WX78KS011


By chance which of the 3 holes in the L/H #32 and R/H #33 on the deck hanger rods upon reinstallation of the mower deck ?

Click to expand...

I've always put my cub on the lowest one on those hangers/

Thank you

The deck belt broke and so I will replace and see what happens from there ?

Scrubcadet10 said:

Yes, we're talking about the deck now.,, and to answer your question on the drive pulleys, yes, both are supposed to spin.

let me put on my thinking cap

Click to expand...

My Troybilt is 100 % and FMC, I replaced the deck belt, deck engage cable, and made some adjustments on the mower deck within the idler pulley and everything is working.

Thank you for your help and input on this.

glad to hear it!