Forums Archive Index > Outdoor Power Equipment > Toro 1028 transmission help
Date: 26 Dec 2006 11:06 pm
Hello,
I have a Toro 1028 model 38560 S/N 2000000xxx and in the process of doing some repairs, maintenance and upgrades found a troubling problem with the transmission input shaft during belt renewal.
After removing the belt covers to do the belt renewal I found the input shaft to the transmission to be very wobbley. So much so that installing the new belt is probably not a good idea.
I checked all the nuts/bolts on the pulley and hub and all were still tight. When I move the pulley I can see the play is in the hub/pulley as an assembley.
In looking at the transmission diagram, it appears (to my untrained eye) that the ball bearing around the input shaft that is clamped by the transmission case is most likely shot.
My first questions regarding this problem are:
1. Is the ball bearing the most likely culprit here?
2. Are there other transmission components likely to need replacement due to the play in the input shaft?
3. Is the ball bearing renewal a DIY job?
4. If this is DIY-able is the information in the Toro service manual complete enough to do the job.
I have a heated garage to work in and the Jeff Spicoli "My old man is a television repairman, he's got this ultimate set of tools. I can fix it" attitude - if that helps.
Any information would be greatly appreciated.
Thanks,
Plotchman
Date: 26 Dec 2006 11:18 pm
Bearing should fix your problem :) and if you are handy it shouldnt be a problem
Date: 27 Dec 2006 12:59 am
Thanks Kneebiter, I'm ordering the parts tonight.
Date: 27 Dec 2006 1:10 am
Hi Plotchman & WELCOME! :D
When you say the transmission input shaft, do you mean the one for the impeller/augers or the self propelled drive?
Either way, Kneebiter is right - a bearing replacement should cure this. The toughest part may prove to be the actual removal of the belt pulley . Begin soaking the shaft where the pulley is attached with a good penetrating oil like PB Blaster. A pickle fork (used for auto front end work) may facilitate pulley removal. Resist using pry bars on the pulley, rest assured it will bend if you do so.
Marty
Date: 27 Dec 2006 2:55 am
Major,
The pulley that transfers engine power to the self propelled drive is one that is wobbley.
When I started taking things apart the belts were really loose and worn and the idler system was pretty out of whack. I think there may have been too much play in the belts for too long and the hub bearing is the weak link. I'm going to replace the parts on the idler assembly while I've got out also.
Toro's drawing don't show a "proper" shaft but a hollow hub with a pinion gear at one end and the pulley at the other. The pulley is actually bolted to three spokes on the hub. A long bolt through the hub holds all this together to make a "shaft.
I'm going apply penetrating oil to the 3 bolts holding the pulley to the hub daily until the parts show up. Everything has I've treated this way so far has been reasonably easy to disassemble.
Funny you should mention a pickle fork. I found one today under some junk, er, cool stuff I was moving to clear some benchtop space for the transmission. Didn't even know I had one.
Plotchman