D5 Dead Axle Removal

[RossEagar]

I've got an old D5 96J dozer the final drive went out on. It ended up stripping the threads on the end of the dead axle so it needs replaced. Welded a nut to the end of the axle so I could put my threaded rod and hydraulic ram on it. Put a 6" diameter pipe around the axle and brought the 50 ton press up to 10,000 psi expecting it to pop out any second. No luck. An old timer mechanic told me to use something heavy suspended as a pendulum with a chain tied to the end of the axle. Swing it so that it hits the chain at the bottom of the curve acting like a slide hammer jarring the axle. Put 8000 psi back on the press and swung an old 350 block a few times. No luck. Added some more weight to get it up to around 500 lbs. Still with the press at close to 10,000 and the 500 lbs, doesn't want to budge.

Just to clarify, I did remove the big nut underneath along with the pin holding the nut in place.

Does anyone know of any tricks to get those axles out?

 

[Bob/Ont]

You might heat the shaft as close as possible to the taper section red hot and let it cool over night, then try again.
Later Bob

 

[Shimmy1]

Tctractors??

 

[Scrub Puller]

Yair . . .

As Shimmy1 says tctractors is 'da man. (big grin)

Cheers.

 

[Old Magnet]

Service Manual shows using the 7F9831 hydraulic push/pull cylinder.
55 Ton in/72 Ton out.

 

[tctractors]

Easy little job, firstly the inner nut needs refitting onto the dead shaft a nut full amount of threads if possible leaving a 1/4" air gap for the shaft to move, then throw on your bits and pieces and stuff the full beans into the pump, then get an adaptor to fit into your gas cutting torch (Rose Bud propane and ox'y big tip) then heat up the main case around the shaft, it will take a few moments so don't quit until it fires free, it will need pulling out the full distance with the back nut spun loose, the new shaft will need fitting with the key slot in the 12' O Clock position and the nut fitted before you finally install the shaft, it's a hammer blow affair via a dolly inserted into the shaft adapter, I think its 1"1/2 x 12 stub, you hit the shaft until the inner nut tightens firm with the C Spanner and tube, keeping your eye on the distance spec, this distance doe's have a tolerance for being a bit off, finally check your outer dish and lock as the dowel pins on the lock might be damaged, lack of grease in the outer housing usually causes this drama. tctractors

p,s, on the bottom of page 1 in my sprocket thing in Shop Talk is a D5LGP getting the dead shaft sucked out, I was using a 72 ton cylinder as O.M. detailed.

 

[Heavey Metal]

You can drill and tap a hole between the 2 axles for a grease fitting or portapower.

 

[RossEagar]

Yes, tctractors is 'da man! Followed his advice tonight and got it out. Only used my 50 ton press, but heated the tube under the steering clutch with a rosebud and it eventually popped. Just a matter of pressing it out and the new one in after that. Appreciate all the advice! It's all downhill from here.