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Recommendation Needed - Transmission Gears

Recommendation Needed - Transmission Gears

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RPeck
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For an Allis HD6 G Shovel 1958. Sorry this isn't about the wonderful cats.

Neighbor has an HD6 G shovel 500 hrs on the clock and as expected the undercarriage is very nice. Problem is he loaned the machine to an inexperienced operator who destroyed reverse. All forward gears work.

Can any of the good Cat men here offer suggestions on where to source a gear set for this beast? He offered me the machine for $500 easily worth that in short steel value.

Would prefer to save rather than send off to China....

Thanks for any insights!
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Fri, Jan 2, 2015 4:44 AM
Rome K/G
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Wow! give em an anvil, bet he'd destroy that too! Give em a chunk a steel and hammer out a new gear! lol
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Fri, Jan 2, 2015 6:58 AM
RPeck
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Reply to Rome K/G:
Wow! give em an anvil, bet he'd destroy that too! Give em a chunk a steel and hammer out a new gear! lol
Right! Can you imagine operating the machine til reverse was brought to a halt? A good equipment operator is priceless.

I am pretty sure the transmission is shimmed for ring and pinion clearance. I am hoping he has the driveshaft.

Maybe I need to find someone who can hobb a new reverse gear. Carburizing would be needed I would think.
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Fri, Jan 2, 2015 7:28 AM
drujinin
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Reply to RPeck:
Right! Can you imagine operating the machine til reverse was brought to a halt? A good equipment operator is priceless.

I am pretty sure the transmission is shimmed for ring and pinion clearance. I am hoping he has the driveshaft.

Maybe I need to find someone who can hobb a new reverse gear. Carburizing would be needed I would think.
There is a fellow on here that lives upstate who posted a ton of manuals for sale a year or so ago. He has a collection of Old Iron that had a few Allis in it. If anyone could lead you in a parts direction, it would probably be him! Name is slipping my mind but he posted those manuals twice in big batches. Matter of fact he may have posted about a bunch of radiators being stolen for the scrap value.
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Fri, Jan 2, 2015 9:13 AM
dpendzic
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Reply to drujinin:
There is a fellow on here that lives upstate who posted a ton of manuals for sale a year or so ago. He has a collection of Old Iron that had a few Allis in it. If anyone could lead you in a parts direction, it would probably be him! Name is slipping my mind but he posted those manuals twice in big batches. Matter of fact he may have posted about a bunch of radiators being stolen for the scrap value.
that was Dandy Dave in Craryville NY
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Fri, Jan 2, 2015 9:20 AM
ronm
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Reply to dpendzic:
that was Dandy Dave in Craryville NY
General gear in Idaho probably has the parts you need.
http://www.tractorparts.com/
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Fri, Jan 2, 2015 9:57 AM
gemdozer
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Reply to ronm:
General gear in Idaho probably has the parts you need.
http://www.tractorparts.com/
I am still have some HD6 transmission gears
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Fri, Jan 2, 2015 5:22 PM
RPeck
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Reply to gemdozer:
I am still have some HD6 transmission gears
Just a quick follow up, thank you for the excellent insights.

Sometimes one needs a reminder that others are parting machine guess that slipped my mine.

Note to Gemdozer, I will be in touch with you on the gears when I get the gear case sorted out.

BTW i am thinking about building a field master pin press. I plan to use half of the cross beam from an Allis H3 which is laying in my scrap pile as the base. To that I plan to use an OTC 4122 twin ram as the business end to push the pin.

Will fabricate a stop from 120 lb.. railroad rail on the end of the cross beam to allow the link to be supported on the back side.

Any recommendations would be appreciated - I have been looking for an OTC 7000 track press for some time - here on the East Coast to no avail.

Time to build my own I guess.
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Fri, Jan 2, 2015 8:57 PM
drujinin
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Reply to RPeck:
Just a quick follow up, thank you for the excellent insights.

Sometimes one needs a reminder that others are parting machine guess that slipped my mine.

Note to Gemdozer, I will be in touch with you on the gears when I get the gear case sorted out.

BTW i am thinking about building a field master pin press. I plan to use half of the cross beam from an Allis H3 which is laying in my scrap pile as the base. To that I plan to use an OTC 4122 twin ram as the business end to push the pin.

Will fabricate a stop from 120 lb.. railroad rail on the end of the cross beam to allow the link to be supported on the back side.

Any recommendations would be appreciated - I have been looking for an OTC 7000 track press for some time - here on the East Coast to no avail.

Time to build my own I guess.
Hector Gemme is an excellent guy to deal with!
Hector sorry I forgot you posted a while ago in response to another inquiry about Allis parts!
BTW
Did you see the post about a Track Press on the East Coast, I put up this morning?
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Fri, Jan 2, 2015 10:25 PM
Mervyn Pepper
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Reply to drujinin:
Hector Gemme is an excellent guy to deal with!
Hector sorry I forgot you posted a while ago in response to another inquiry about Allis parts!
BTW
Did you see the post about a Track Press on the East Coast, I put up this morning?
1st and rev on a HD6 are just a sliding gear and a idler gear for reverse. Chances are if the FW in the seat has stripped one gear its 2 other mates are going to be fairly sick too.
Dry back end HD6s all use the same gears, and HD5s are the same too. 6G should have the 2 speed reverse. But 1st and reverse are the same gears for both boxes. Should be plenty of parts out there.
Don,t go down the track of thinking you can just swap gearboxes. Each boxes crownwheel and pinion are set up for there individual tooth contact. Just strip the box and repair it. Have a good look at the rear double bearing on the pinion shaft too, they do fail
cheers, HD6 was a bloody good little dozer.
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Sun, Jan 11, 2015 11:16 AM
RPeck
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Reply to Mervyn Pepper:
1st and rev on a HD6 are just a sliding gear and a idler gear for reverse. Chances are if the FW in the seat has stripped one gear its 2 other mates are going to be fairly sick too.
Dry back end HD6s all use the same gears, and HD5s are the same too. 6G should have the 2 speed reverse. But 1st and reverse are the same gears for both boxes. Should be plenty of parts out there.
Don,t go down the track of thinking you can just swap gearboxes. Each boxes crownwheel and pinion are set up for there individual tooth contact. Just strip the box and repair it. Have a good look at the rear double bearing on the pinion shaft too, they do fail
cheers, HD6 was a bloody good little dozer.
Hi Mervyn: Glad to see you came along I was hoping you would see this thread. I see your point on the Pinion and the alignment for good tooth contact and certainly appreciate the reminder.

I have heard of guys swapping out the transmissions on these AC HD6 G machines and running them a bit to be back into the same issue. I could see if the machine was up on stands with the tracks off that the case and pinion could be cleaned 1st.

Afterwards I would think that prussian blue would be helpful to evaluate the gear to tooth alignment with the pinion I memory serves the transmission cases were shimmed in the Springfield Dozer plant upon assembly.

Since Allis went to a wet back end toward the late stages of production of the HD6 it makes me wonder who supplied the transmission in both the early and late machines.

Perhaps Allis built the tranny themselves but looking at their other applications it was not uncommon during that time period for them to outsource and their were plenty of vendors building transmissions here in the US.

Thanks all for the excellent insights and contact information.
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Sun, Jan 11, 2015 6:12 PM
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