hoptownhiller Posted September 4, 2003 Posted September 4, 2003 Folks, Got a lawn vaccuum in for repair that hangs off a 7117......a self contained unit that runs off the rear PTO...... The bearrings on the shaft of the fan drive assembly have frozen.....this shaft is housed in a piece of square stock tubing with flanged bearings for support and lock collars on the inside of the bearings....... I can't get the bearings or lock collars off, they are rusted/siezed to the shaft.....as it is in the square tube I cannot get the pullers on them either....... Does anyone have any thoughts....I know the fire wrench will resolve all, but that would require purchasing whole new shaft assembly......not sure if they are even avaialable..... Thanks in advance for the help
Agricola Posted September 4, 2003 Posted September 4, 2003 Can you shoot out a picture of the unit? I seem to be a bit confused on the problem.
hoptownhiller Posted September 4, 2003 Author Posted September 4, 2003 I am technology challenged and have no digital camera.....I could not find the parts break listed on the sight anywhere for this attachment.....maybe I did not look hard enough though
roneil Posted September 4, 2003 Posted September 4, 2003 Here is the Simplicity Technical publications link for the repair manaul. This manual covers all PTO (and engine)driven vacuum collectors through 1978. http://www.simplicitytechpubs.com/6767PRINT/PDF_files/TP_500_630_00_AT_S.pdf Good Luck, Hope it helps. Bob
thedaddycat Posted September 4, 2003 Posted September 4, 2003 I know we've batted about solutions to rusted on parts before. Along with the usual debate about which oil product is best, some have suggested using plain old Coca- Cola which is one of the more unusual ideas. Heat/cool cycles seem to help draw whatever you use into the gap between parts.
SmilinSam Posted September 5, 2003 Posted September 5, 2003 The unit is likely a "PECO" made vac. They made alot of vacs for different tractors. Most of them I've seen are driven by their own engine mounted to the vac frame. Don't know if they are still in business but this gives you a reference point to start looking.
hoptownhiller Posted September 8, 2003 Author Posted September 8, 2003 thanks for the link to the vacuum manual, however this manual did not cover the self-contained., "hand off the tractor"(no trailer) unit I have...... Anyone else have anythougths....it has no soaked for 4 days with various attempts at heating......I am thinking the FIRE WRENCH is the only way......I am very leary thought because I am concerned about replacement parts.......
MN_FISH Posted September 8, 2003 Posted September 8, 2003 Can you borrow a camera or have a friend take some & post some pictures? Can you pull the seal out and try and get the balls out? We do this when we don't want to use the hot wrench. The bearings should be some common ones and easily purchased. If you do ruin the shaft a metal fabrication shop could make one? Still confused why it would be set up the way it is.
CarlH Posted September 8, 2003 Posted September 8, 2003 The vacuum collector you are working on may be the MFG # 1690402 Frame Mounted Vacuum Collector. I have one of these vac's and the parts breakdown I use is TP-861-05 'Sovereign, GTH-L, Series 900, Series 2800, Series 7100 Attachments and Accessories Parts Manual.' While I have not recently needed parts, the last time I checked most of the parts were still available.
Salthart Posted September 8, 2003 Posted September 8, 2003 Not sure but if there is no aluminium involved, You can buy a gallon bottle of Muratiac acid for about 3 bucks. Also pick a spray bottle.. Before useing the acid, Clean ALL oils with soap and water as oil and grease will keep the acid from ever touching the rust. Once it is clean, spray but do not breath the fumes ! This stuff eats rust big time and in a short while the parts should be free. Do not get this stuff on aluminium ! Unless you have a crank with aluminium stuck to it etc.. It will take it away fast... Once you are done be sure to clean once again with soap and lots of water to remove any left over acid... Salthart
hoptownhiller Posted September 9, 2003 Author Posted September 9, 2003 Folks, Again, thanks for all the help........unfortunately, not the shaft and not the frame, but everything else is cast aluminum..... as far as pulling the bearing appart, I cannot move the collars on one side and the bearings are up against the frame on the other side......... I will ask around for a camera because I am really befuddled on this one....
CarlH Posted September 9, 2003 Posted September 9, 2003 Does your vacuum look like this? [img]http://www.simpletractors.com/images/new_in_1978/bagger.jpg[/img] If so, here's how it comes apart: 1. Remove inlet hose adapter 2. Remove aluminum impeller blades. There are 2 that are clamped together with 2 bolts on the shaft. 3. Remove aluminum blower housing by removing the 3 carriage bolts that hold the blower housing to the flange bearing assembly (and bracket). Now all you have to deal with is various bearings, lock collars, and the pulley on the shaft. A gear puller, die grinder, chisel, or hot wrench will work fine and you shouldn't need to ruin the shaft unless its already shot. When I rebuilt mine I used a somewhat smaller pulley to increase the blower speed for better vacuum.
UCD Posted September 9, 2003 Posted September 9, 2003 Soak the parts in plain old white vinegar. It works wonders on corroded alum. and white metal parts.
hoptownhiller Posted September 9, 2003 Author Posted September 9, 2003 Carl H..........that is the ticket.........that is the picture.....I have the subassembly appart as you suggested but I can't get the collars off to allow the bearings to free up...........seems like one of the poorest design features I have experienced with A/C, Simplicity......they normal design/build for repair quite well
arnoldir Posted September 9, 2003 Posted September 9, 2003 If it's a PeCo vacuum they are still in buisness you can find them at www.lawnvac.com Nice friendly folks, they keept pretty good records, and were able to supply a new bag for a 20+ year old vac. Good luck
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