HD11-B Final drive

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   hi from Australia. I have not long owned a hd11 b and while playing around with the steer clutches  it made a crunching sound on the right side. After draining final drive oil it had metal in it so I took the cap of the the sprocket and there was more metal. looking in parts book that came with it  were some  notes that have been written and all so pant does not match  it has had some work done on drive  at some stage.  I am thinking the sprocket shaft and drive gear splines are worn.  being this is a 60 year old dozer can I pull the back cover plate off and weld the shaft to the drive gear? if this is the problem or do I keep using it like it is until it either  finish the job I brought it for or it lets go and then fix. will it do any more damage ? It will still spin both tracks pushing at this stage. Parts if I can find them are going to be second hand and probably well worn. thanks scott

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wilbur 76 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 19 Jul 2021 Location: australia Points: 3	Post Options Post Reply Quote wilbur 76 Report Post Thanks(0) Quote Reply Topic: HD11-B Final drive Posted: 22 Jul 2021 at 6:05am
	hi from Australia. I have not long owned a hd11 b and while playing around with the steer clutches it made a crunching sound on the right side. After draining final drive oil it had metal in it so I took the cap of the the sprocket and there was more metal. looking in parts book that came with it were some notes that have been written and all so pant does not match it has had some work done on drive at some stage. I am thinking the sprocket shaft and drive gear splines are worn. being this is a 60 year old dozer can I pull the back cover plate off and weld the shaft to the drive gear? if this is the problem or do I keep using it like it is until it either finish the job I brought it for or it lets go and then fix. will it do any more damage ? It will still spin both tracks pushing at this stage. Parts if I can find them are going to be second hand and probably well worn. thanks scott

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gemdozer Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 17 Sep 2009 Points: 989	Post Options Post Reply Quote gemdozer Report Post Thanks(0) Quote Reply Posted: 22 Jul 2021 at 7:17am
	You should never weld inside final drive parts because it will brook again a couple hours later and make more damages.

CAL(KS) Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 18 Sep 2009 Location: Chapman, KS Points: 3786	Post Options Post Reply Quote CAL(KS) Report Post Thanks(0) Quote Reply Posted: 22 Jul 2021 at 9:01am
	i wouldnt think those parts that hard to find. I think quite a few made it over there.
	Me -C,U,UC,WC,WD45,190XT,TL-12,145T,HD6G,HD16,HD20 Dad- WD, D17D, D19D, RT100A, 7020, 7080,7580, 2-8550's, 2-S77, HD15

wilbur 76 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 19 Jul 2021 Location: australia Points: 3	Post Options Post Reply Quote wilbur 76 Report Post Thanks(0) Quote Reply Posted: 23 Jul 2021 at 4:20am
	thanks for the reply's I have spent a couple of hours pushing fallen timber with out any problems. just trying not to get stuck some where it can not be worked on if it lets go. tractor is a allis chalmers hd11 wet clutch direct drive 10001 and up serial number.