Practically New Troy Bilt 2890 drive issues - Friction wheel? Cable? - Snowblower Forum : Snow Blower Forums
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post #1 of 23 Old 11-15-2016, 12:35 PM Thread Starter
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Practically New Troy Bilt 2890 drive issues - Friction wheel? Cable?

Hi everyone, new to the site. We received a sweet Troy Bilt 2890 3 stage snow blower 2 years ago for xmas. we live in the northeast so we used it a lot the first year and dont think we took it out last year. Towards the end of the first year of use it started to stop driving, it would lurch forward a foot maybe then the wheels would stop turning. I would have to find this impossible to hold position on the drive lever that was somewhere in between released and held down.

Im getting the snowblower prepared for this year and went through some basic troubleshooting including checking the cable tension by loosening the bracket at the bottom and adjusting it from max tight to max loose. Neither helped. Ive also removed the belly cover and checked the friction wheel to check the friction belt/pulley and the friction plate to make sure it wasnt greasy. The friction belt and plate were clean but I wiped them down with gasoline to be sure. Still no luck. Engine starts fine. Friction plate spins well but as soon as i pull the drive lever down it moves a foot or so then stops.

I think the cable is too tight even in the loosest position. Ive held the drive lever down while observing the engagement of the friction wheel and it appears that its so tight that its stopping the friction plate from spinning. I also suspect its too tight because if i find that sweet spot on the lever where its just engaging it will drive fine. I dont know how this would have changed all of a sudden, blower was fine in the beginning of the season then started acting up towards the end. Could something like the friction plate moved so its has less distance to come into contact with the friction wheel or vice versa? I dont see anything obviously degraded.

Any thoughts or next steps I might try would be greatly appreciated.

Thanks everyone
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post #2 of 23 Old 11-16-2016, 02:28 AM
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Here is a shot in the dark what about the belt????? otherwise post a vid of this problem that is presenting itself onto us here. because I am not schooled on that brand of blower. anyhoo ALOHA from the paradise city.

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post #3 of 23 Old 11-16-2016, 07:12 AM
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It's possible ther may be a roll pin or setscrew that is loose or broken? Maybe even a snap ring. It sounds like something in your drive system is working intermittently.
I think this is a pic of your drive system. Look at it and check the pertinent parts.


Troy-Bilt 31AH55Q8711 - Troy-Bilt Vortex 2890 Snow Thrower (2014) Drive System Diagram and Parts List | PartsTree.com

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post #4 of 23 Old 11-16-2016, 07:22 AM
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+ 1 with checking the drive belt condition and proper tension before digging any deeper.
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post #5 of 23 Old 11-16-2016, 08:37 AM
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Yeah - check that the drive belt pulley bolt on the end of the motor shaft has not backed out on you too - feel the tension of the belt - it should be pretty snug when the lever is engaged and the belt should not be bottomed out. With it not running, strap the lever down, and try rolling the tires by hand as you watch what's going on with the the gears and shafts. You may spot where the trouble is......




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post #6 of 23 Old 11-26-2016, 05:24 PM Thread Starter
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Just replaced both belts (auger and drive) and seems to be just a little better. it wasn't fully stopping any more but as soon as it felt friction from the skid plates dragging it would hesitate/slow down/ then stop. If i pivoted the machine back a little to clear the sid plates from dragging it would run fine.

I checked the drive pulley bolt and belts were in ok condition. no noticeable degradation. It still feels like the throttle lever that engages the friction plate is too tight but i have checked all that, adjusted from full tight to full loose and no difference.

Any other thoughts? How can i post a video?
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post #7 of 23 Old 11-26-2016, 05:30 PM
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have you had the belly pan off yet to see if anything is amiss there ? you can upload a vid to youtube, then copy/paste the link here.

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post #8 of 23 Old 11-26-2016, 05:41 PM Thread Starter
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yes belly cover has been off for a while. Ive observed the friction wheel with the engine running. When i pull the lever the friction wheel engages and spins, then stop spinning after a couple feet of forward travel.
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post #9 of 23 Old 11-26-2016, 05:58 PM
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Quote:
Originally Posted by DrClaw View Post
yes belly cover has been off for a while. Ive observed the friction wheel with the engine running. When i pull the lever the friction wheel engages and spins, then stop spinning after a couple feet of forward travel.
i need to ask......how exactly did you observe the friction wheel with the engine running ? have you cleaned the friction disk and wheel ? did you check for any "flat" spots on the wheels rubber ?

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post #10 of 23 Old 11-26-2016, 08:04 PM Thread Starter
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cleaned the wheel and plate. rubber gasket on friction wheel itself look in good shape.

I observed the friction wheel in in progress by starting the blower, belly cover off and crouch down behind the machine so i could look under it, i would then reach up and engage the drive lever, it would stop moving before it got too far. I could see the friction wheel spin, engage and spin for a couple revolutions then seize up.
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