Sources for Hard To Find Items: Tractor Engine Repair Rebuild  -- Tractor Maintenance Discussion Forum and Review Sources for Hard To Find Items: Tractor Engine Repair Rebuild -- Tractor Maintenance Discussion Forum

  parts   |   manuals   |   discussion   |   photos   |   podcast   |   reviews   |   specs   |   dealers   |   classifieds   |   contact   |   faq   |   myProfile   |   home          Login Now | Sign Up


FAQ:   What is a tractor?

Forum Index
New As Posted | Active Subjects



www.emerichsales.com - New & Used Equipment
          View Tractors For Sale!


www.partsbynet.com - Lawn and Garden Equipment Parts


Bernardsville Landscape Lighting
Click to Post a New Message!

Discussion Boards > Active Subjects > Messages as Posted > Tractor Engine Repair Rebuild Forum

Page [ 1 ] |
Reply | Pop Up Window Reply | Add PhotoAdd Photo
 03-09-2001, 06:11 Post: 25240
Ted Kennedy



Join Date:
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1

2
Filter by User
 Sources for Hard To Find Items

I recently repaired my Cub Cadet 407 backhoe by installing hardened steel bushings at all of the pivot points. The design of the unit had no-replaceable bushings and the dealer was clueless as how to go about installing new ones, he advised me to replace both the boom and the dipper along with all of the pins. In aerospace engineering we frequently purchase components and hardware from either McMaster-Carr and/or Carr Lane (www.mcmaster.com/ and www.carrlane.com/). I bought enough self-adjusting spring steel bushings from McMaster-Carr of the appropriate outside and inside diameter, a set of new pins from Cub, and rented a magnetic base drill press. I center indicated each bore, used the appropriate ream after positioning the magnetic base drill press, and opened the worn holes to size in one operation. Pressing in the bushings was easy, just drove them in using a wooden dowel and hammer. The hoe operates perfectly with no binding or slop and the next time I need to re-bush, all I have to do is drive out the worn ones and replace. The total cost including rental of the drill press, and all parts was $255.00, to buy a new boom and dipper stick, $2700.00. If anyone needs unusual parts, tools, jigs, storage items, etc., check these sources out.






Link:   Click Here 

Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Technorati | Furl | Stumble This

 03-09-2001, 09:18 Post: 25254
JeffM



Join Date:
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1

2
Filter by User
 Sources for Hard To Find Items

Ted, thanks for the useful info and instructions! Your technique can be used in a variety of pivoting wear situations. Although I'm an EE/Computer Scientist by education, in a past stint with a mechanical design engineering team I too relied on McMaster-Carr, but had kind of forgotten the breadth of items I could source from them. Now I'll exhibit some of my broad ignorance: could you please describe a magnetic base drill press in more detail, specifically the capabilities and operation of the magnetic base? I've had relatively little exposure to machining operations and I'm a curious type.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Technorati | Furl | Stumble This

 03-09-2001, 11:20 Post: 25264
Ted Kennedy



Join Date:
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1

2
Filter by User
 Sources for Hard To Find Items

Sure Jeff, the magnetic based drill press enables its user to make repairs that normally would require full disassembly, jigging on a table to make normal (right angle to surface) to the bore center line, and ream/bore using either a two axis machine or drill press. You know, machine shop stuff. In my case, I was able to remove the dipper stick and just place it on a couple of saw horses to ream out the points that attach to the boom. I applied the magnetic press to the dipper stick itself, centered it at each hole using plug gage/center, removed the center, turned on the magnet's current, then reamed. The drill press I used has enough axis adjustment to compensate for the slight angularities of the part being drilled. The magnet holds the press in exact position, exactly normal to the bore. I actually did the bucket end of the dipper while it was still assembled to the boom (suspended from the ceiling using a web fabric sling and hoist just long enough to make alignment and then turn on the magnet), and when my wife saw the drill press sticking sideways off of the dipper she couldn't believe her eyes until I let her in on the secret, "it's done with a magnet." (Note: parts that have a taper in two directions may prevent you from attaining normal to the bore C/L, and you won't be able to shim the magnet because it requires a fairly flat surface to hold) My wife asked me why I just didn't use a hand drill. The answer is that there is too much torque and pressure required for a hole this size, and no way to ensure normal, using a hand drill. I learned how to perform this operation from one of our tool makers: don't bring a big part to the machine shop, bring the machine shop to the big part! Cheers!






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Technorati | Furl | Stumble This

 03-09-2001, 12:13 Post: 25268
JeffM



Join Date:
Location:
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster
Posts: 1

2
Filter by User
 Sources for Hard To Find Items

Thanks for the lucid explanation, Ted. I learned something here that I can see having some use for in the future.






Reply to PostReply | Quote Post Reply to PostQuote Reply | Add PhotoAdd Photo




Bookmarks: Digg It | Del.icio.us | Technorati | Furl | Stumble This

Reply | Pop Up Window Reply | Add PhotoAdd Photo


Page [ 1 ] |

Discussion Boards > Active Subjects > Messages as Posted > Tractor Engine Repair Rebuild Forum

Thread 25240 Filter by Poster:
JeffM 2 | Ted Kennedy 2 |




Most Viewed

+ Diesel engine spits oil from exhaust
+ HOW MANY TRACTOR HOURS IS TOO MANY HOURS?
+ Ford 1910 hydraulic problems
+ Need help with 4x6 Gator 3 Cyl Diesel Engine probl
+ yanmar 3 cyl desiel wont start
+ How to stop Mice Rodents eating Tractor Wiring
+ JD 870 not pulling its own weight
+ Yanmar 186D fuel problem
+ Honda small engines suck!
+ How to Start Honda small engines

Most Discussion

+ Ford 1910 hydraulic problems
+ Mice
+ Small Engine Start Problems
+ High pressure washer problem
+ JD 870 not pulling its own wei
+ Honda small engines suck!
+ JD870--rops-lights
+ Deisel coolant temperature
+ Emergency Shut Down Valves
+ How to Start Honda small engin

Newest Topics

+ Belarus 800 series
+ New Holland TC55DA 4 wheel drive tractor Boomer se
+ New Holland 3010S wiring problem
+ need rebuild kit
+ Deere 870 tractor with Yanmar ch3048d engine MOD 3
+ JD 4310 - pops out of gear
+ 393 Massey Ferguson dash light
+ Tractors Expected Life and Service requirements
+ Hydraulic Stuff, lessons learned.
+ Overheated TC33D Engine Rebuild how to Split







Turbochargers for Tractors and Industrial Machines
Cab Glass for Tractors and Industrial Machines

Alternators for Tractors and Industrial Machines
Radiators for Tractors and Industrial Machines

Driveline Components for Tractors and Industrial Machines
Starter Motors for Tractors and Industrial Machines