Drive pulley removal - mower deck B-80 tractor

[Heatingman 971]

Whats the trick to getting the double pulley off the shaft?

 

standard puller worked for the 2 outboard pulleys, but this one must be different in some way, but Im not sure. Perhaps this one has a threaded shaft?

 

Already bent the lower grove on the pulley a bit, which I should be able to straighten out.

 

Want to get to the bearings to either replace them, or repack.

 

 

[Heatingman 971]

Got it. Standard pulley puller, added some tension, hammer the tension nut on the puller then turn a bit. Rinse and repeat. Trick I use on pump rebuilds at work. 

 

Also let the shaft soak in wd for about 20 minutes.

 

now onto the bearings.

 

the pulley was a single piece.

[peter lena 9,252]

@Heatingman  deck pulleys can be very deceiving  and also very weak on the outer edges , I  use these flat pry bars on my deck pulley removal , for very  easy work , the key is to use solid  LVERAGE  THAT IS RIGHT THERE . rocker the bar on top of the spindle deck bolt . push both bars right up against the underside center spindle side wall, bar rocker on top of deck bolt , under pulley , push both out evenly , pulley , lifts off easily . done this on my deck rebuilding , no pulley damage . pete 

 

[Heatingman 971]

These bearings do not appear to be greasable, and from what I have found, the Toro 103119 part number has been discontinued.

 

I did find a vendor on ebay that either has a bunch of NOS, or reproduction.

 

for about 50 each.

 

Am I wrong to believe that they are not greasable/rebuildable?

I put it in the 12 ton press. If it does come apart, would need more press that I have.

 

[Heatingman 971]

Found them also on wheelhorse parts and more for around 30 each.

 

 

[Jeff-C175 7,206]

1 hour ago, peter lena said:

@Heatingman  deck pulleys can be very deceiving  and also very weak on the outer edges , I  use these flat pry bars on my deck pulley removal , for very  easy work , the key is to use solid  LVERAGE  THAT IS RIGHT THERE . rocker the bar on top of the spindle deck bolt . push both bars right up against the underside center spindle side wall, bar rocker on top of deck bolt , under pulley , push both out evenly , pulley , lifts off easily . done this on my deck rebuilding , no pulley damage . pete 

 

 

I've used this method quite a few time with no damage to the pulleys and they come off rather easily.

 

I do something a little bit different though, I 'rock' the two bars so that the pulley can imperceptibly 'wiggle'.  I don't use WD, but rather PB Blaster, I think it works much better.  I think the wiggling gives the penetrant room to seep in further.  Then, I wait a little more time.  I've got nothing but time...  when it starts to come up, I push it back down and SPIN it on the shaft to clear out the 'mung'.  Then it's free and slides right off.  

 

Use a thin bar such that you can get it further in than the edge of the pulley because, yeah, they do bend rather easily.

 

 

[JoeM 8,332]

1 hour ago, Heatingman said:

Am I wrong to believe that they are not greasable/rebuildable?

Non serviceable. 
on the other hand those bearings are have lasted that way for more than 30 years. 

[peter lena 9,252]

@Heatingman think if you can get them for $30 each , that would be the deal , while  in the tear down stage , recommend that after cleaning the bottom 0f the deck , you leave it upside down and penetrating oil soak it down . to kill off grunge and soak in the lubricant , been doing that for years to stop rust and preserve deck, pete  

[peter lena 9,252]

@Heatingman been doing this for years , you have to break the moisture / grunge cycle , with sun heat and lubrication . zero rust or rot , pete

 

[Heatingman 971]

Well, I got it all apart, and placed the order for the bearings from wheelhorsepartsandmore.com

 

Around 100 with a replacement throttle knob.

Just in time to be called in for an emergency boiler down at an animal fat processing plant. So much for the night of fireworks.