Help me get these pulleys off

[kb9nvh]

Help me get these pulleys off. Does the puller that I need use two bolts that will pull off the bottom slotted disk first and then the pulley next.

HELP...I dont want to use a torch due to I dont want to heat up the shaft of the hydro pump.

http://www.grimlabs.com/BADBOY/IMG_1973.JPG

[PROCUT1]

Yep 2 bolt puller will thread in the holes and then pull it off.

Get "PB Blaster" its awesome penetrating oil that eats rust.....WD-40 or anything else doesnt come close.

Soak it a few times with the PB and it should come right off.

If it still doesnt heat it with a propane torch. Dont use oxy-acetelyne. Propane will get it hot enough to come off but not hot enough to damage.

[MowerMedic77]

They pull themselves off, the center hub has 4 holes two that are threaded and the two that u took the bolts out of non threaded. Take the screws and thread them into the threaded two tighten them down equally(this is very important if you don't you can crack the hub) they will push against the large pulley and drive the center out. Once the main pulley has pushed off the hub you can use a flat head screwdriver in the split in the center hub, once again go easy you only need to separate a little too much will crack the hub. Pay attention to the pulley since it is tapered on the side that the center is currently in and the center hub should go into it easily when you put them back on. You will get the large pulley in place and then put the center hub back(minus the screws) line up the non threaded holes on the center hub with the threaded holes on the large pulley and thread in the two screws again equally. The center will pull into the large pulley and tighten down.
Good luck hope this helps......

[kb9nvh]

Tried that and twisted the heads off the bolts....

I've got it soaking now with "rust eater" penetrating oil. We will let that soak for a few days then try again with the bolts.

They pull themselves off, the center hub has 4 holes two that are threaded and the two that u took the bolts out of non threaded. Take the screws and thread them into the threaded two tighten them down equally(this is very important if you don't you can crack the hub) they will push against the large pulley and drive the center out. Once the main pulley has pushed off the hub you can use a flat head screwdriver in the split in the center hub, once again go easy you only need to separate a little too much will crack the hub. Pay attention to the pulley since it is tapered on the side that the center is currently in and the center hub should go into it easily when you put them back on. You will get the large pulley in place and then put the center hub back(minus the screws) line up the non threaded holes on the center hub with the threaded holes on the large pulley and thread in the two screws again equally. The center will pull into the large pulley and tighten down.
Good luck hope this helps......

[PROCUT1]

Mower medic is right....I sent you the wrong direction with that. Taking another look I now see they are tapered with retainers. I do those all the time on sealcoat machine agitators.

The way he said to take them off is correct.

Dont try it the way I said, It wont work and you;ll break stuff.

[bc3xx0]

Grade 8 bolts, pb blaster, and an impact. You can also, knock the pulleys off if you have a little room behind them. Once they are off you can put a screw driver in the split to spread it open a little if its hard locked on the shaft.

[kb9nvh]

OK, hardened bolts, pb blaster and impact (impact is what twisted my heads off. Maybe if I had gently caressed them they would have worked.

Grade 8 bolts, pb blaster, and an impact. You can also, knock the pulleys off if you have a little room behind them. Once they are off you can put a screw driver in the split to spread it open a little if its hard locked on the shaft.

[B&A lawn care]

You now have three possible courses. 1. If there is room for them try prying between the bushing and pulleys with two ladies foot type bars, sometimes called cat bars, or pry bars with a 90 degree curved foot. Place them on opposite sides of the bushing so you can pull the handles the opposite direction works best. Stay away from the spit in the bushing or you will be buying one of them too. 2. If no room for the bars try driving a couple narrow chisels in the same space, screw drivers will work if you have no narrow chisels and don't think much of your screwdrivers. Again stay away from the split in the bushing. If this doesn't split them apart leave the chisels/screwdrivers in place and tap the pulley hub towards the deck with a punch. All of this requires some sense of duty as beating on things will bend the pump shafts. 3. If they are still stuck together at this point you need your puller holes and this is best done by moving aside of the ones you twisted the bolts off in and drilling new holes and tapping them. The holes should be 1/4"-20 TPI and the drill bit would be a #7. Places like Lowes sell tap drill combos but you will need two taps. One to start the threads, called a "taper" tap which will bottom out on the pulley before you are threaded all the way through the bushing, and a "bottom" tap which will finish the threads all the way through. Run some good grade cap screws in the holes and tighten them alternately until things start to move, if you get afraid of twisting them the STOP, and tap the pulley towrds the deck with a punch nad things will then move. Once the bushing and pulley are separated you then drive a screwdriver in the slit and the bushing will easily slip off the shaft. Don't mean to kick a man when he is down but when people ask me the best way to repair twisted off bolts my standard reply is don't twist them off to start with. We all must pay for our educations.

[kb9nvh]

I wasn't sure what came off on this and in what order. I didn't know for sure that the bottom bushing was separate from the pulley after it wouldn't come off.

In my haste, I used my impact and twisted the bolt off before I knew it..had to use a sawsall to cut the bolt in the slit so I could get it out of the threaded hole.

Now that I know for sure that the bottom busing comes off before the pulley I will try the ladies foot idea again.

Also, I was tempted to use a torch but didn't want to damage the pump (if in fact it is still good). I had my 15yr olds boyfriend bring over his puller that he uses on his tractor. He wasn't worried a bit about heat damage or bending the shaft. I'll bet he just hasn't ruined a 500 dollar pump yet and when he gets a little older he'll use a bit more discretion in his pulley pulling procedures.


You now have three possible courses. 1. If there is room for them try prying between the bushing and pulleys with two ladies foot type bars, sometimes called cat bars, or pry bars with a 90 degree curved foot. Place them on opposite sides of the bushing so you can pull the handles the opposite direction works best. Stay away from the spit in the bushing or you will be buying one of them too. 2. If no room for the bars try driving a couple narrow chisels in the same space, screw drivers will work if you have no narrow chisels and don't think much of your screwdrivers. Again stay away from the split in the bushing. If this doesn't split them apart leave the chisels/screwdrivers in place and tap the pulley hub towards the deck with a punch. All of this requires some sense of duty as beating on things will bend the pump shafts. 3. If they are still stuck together at this point you need your puller holes and this is best done by moving aside of the ones you twisted the bolts off in and drilling new holes and tapping them. The holes should be 1/4"-20 TPI and the drill bit would be a #7. Places like Lowes sell tap drill combos but you will need two taps. One to start the threads, called a "taper" tap which will bottom out on the pulley before you are threaded all the way through the bushing, and a "bottom" tap which will finish the threads all the way through. Run some good grade cap screws in the holes and tighten them alternately until things start to move, if you get afraid of twisting them the STOP, and tap the pulley towrds the deck with a punch nad things will then move. Once the bushing and pulley are separated you then drive a screwdriver in the slit and the bushing will easily slip off the shaft. Don't mean to kick a man when he is down but when people ask me the best way to repair twisted off bolts my standard reply is don't twist them off to start with. We all must pay for our educations.

[B&A lawn care]

In my haste,.

I made a bigger mess out of my first taper lock bushing attemp than you did,:hammerhead: We learn, we go on.

[GravelyNut]

I wasn't sure what came off on this and in what order. I didn't know for sure that the bottom bushing was separate from the pulley after it wouldn't come off.

In my haste, I used my impact and twisted the bolt off before I knew it..had to use a sawsall to cut the bolt in the slit so I could get it out of the threaded hole.

Now that I know for sure that the bottom busing comes off before the pulley I will try the ladies foot idea again.

Also, I was tempted to use a torch but didn't want to damage the pump (if in fact it is still good). I had my 15yr olds boyfriend bring over his puller that he uses on his tractor. He wasn't worried a bit about heat damage or bending the shaft. I'll bet he just hasn't ruined a 500 dollar pump yet and when he gets a little older he'll use a bit more discretion in his pulley pulling procedures.
The center sections of the pulleys will not move until you shove the pulley toward the frame. The center section has to be loose in order for the center to release its grip on the shaft. Untill they seperate, doing anything else will damage the parts if pressure is applied on the shaft or center. You can help the jack bolts by screwing in 2 more bolts in the 2 holes that are threaded in the pulley and blind in the center section. Make sure the heads of these bolts clear the center. Then you can alternate between tightening the jack bolts and smacking the other 2 with a hammer. Do not put a puller on the shaft as you can flare the end and make it even harder to get the centers off. If nothing else, grind a cut in the pulley so you can split it in two. Then the center will come loose. The pulley is cheaper than the pump you are trying to save.