Cat D3C sproket hub

[Vetech63]

Don't buy a Cat Classic. You are far better off with a new or good used.

 

[Bluox]

Don't buy a Cat Classic. You are far better off with a new or good used.

Haven't been able to buy classic parts for 3 or 4 years and why would Cat have sold them with the same warranty as their regular parts if they were so bad?
Bad Bob

 

[Vetech63]

Haven't been able to buy classic parts for 3 or 4 years and why would Cat have sold them with the same warranty as their regular parts if they were so bad?
Bad Bob

My set of classic pre cups snapped off before I reached my 150 lb torque. Even my Cat guys told me classic parts in a critical area is a bad idea. They aren't made like they used to be.....warranty or not. JMHO

 

[Drag racer]

Also pics of tear down.

Have you checked with Cat for the bull gear? Sometimes the quality is worth the price, in my opinion bull gears fall well inside that spec, it's not a place to cut corners.....and you will pay SOMETHING for even the poorest quality gearing unless you are a VERY lucky person and find one free looking for a good home. JMHO.

Cat 2200.00 and oversea supplier.

 

[Drag racer]

Cat 2200.00 and oversea supplier may have found cat nos for 650.00 with shipping.

 

[Drag racer]

Here are some pics everything looks new except the stripped gear.not 1 mark on pinion
Someone had been in it recently bearings appear new also.The bull gear has about inch clearance from case at bottom there are gouges where something caught every tooth has damage.I almost believe they accidentally left behind a tool that caused it all.

 

[Drag racer]

Cat price is 2200.00 may have found a nos cat gear for 650.00 including shipping.

 

[Mcrafty1]

Cat price is 2200.00 may have found a nos cat gear for 650.00 including shipping.

Cat is a global company, chances are the tractor probably came from overseas or at least many, many of the components did so that wouldn't turn me off, however, the price difference is ridiculous, I wouldn't hesitate to take the lower priced gear...I only asked because a lot of times you can get Cat parts at comparable prices. I always check there first, I don't always buy there.

 

[Acoals]

I almost believe they accidentally left behind a tool that caused it all.

Where is the tool now?

 

[Drag racer]

Where is the tool now?

Whatever it was was ground up by bullgear

 

[Drag racer]

Here are some pics everything looks new except the stripped gear.not 1 mark on pinion
Someone had been in it recently bearings appear new also.The bull gear has about inch clearance from case at bottom there are gouges where something caught every tooth has damage.I almost believe they accidentally left behind a tool that caused it all.

If you notice on shaft has a large hex nut about 5 in diameter that was in use,parts diagram shows lock nut that takes index socket.Your thoughts if hex nut be replaced to lock nut, the locknut around $100.00

 

[Mcrafty1]

Was the bull gear an original Cat part? or an aftermarket someone had replaced the original with?

 

[OzDozer]

Good idea to shy away from the Chinese bull gear products. Go for the Italian Ghinassi brand, they are every bit as good as Cat, but much cheaper.

High precision spare parts for industrial earthmoving machines | CGR Ghinassi

CGR Ghinassi parts are perfectly interchangeable with the genuine equivalents and provide the highest guarantees of strength and durability

www.ghinassi.com

The following brands are Chinese. A lot of sellers refuse to reveal where they source their parts/components.

Blumaq
Costex (CTP)
Reliance
Virtually all of the Florida-based aftermarket parts sellers

 

[Acoals]

Whatever it was was ground up by bullgear

Not sure I would be comfortable with that assumption . . .

 

[Drag racer]

Not sure I would be comfortable with that assumption . . .

With everything else looking new ,and with damage I see I am comfortable with that

 

[Drag racer]

Was the bull gear an original Cat part? or an aftermarket someone had replaced the original with?

Can't really say at this time until I get it broken down.

 

[Nige]

If you notice on shaft has a large hex nut about 5 in diameter that was in use,parts diagram shows lock nut that takes index socket.Your thoughts if hex nut be replaced to lock nut, the locknut around $100.00

If you mean #19 the 6S-4531 lock nut is still current. Illustration at bottom is what it looks like.
If there is a different profile of nut in that location it's probably because someone didn't want to spend the $100. Not good.




Thinking out loud. What are the chances that the pinion tore up, also damaging the bull gear. Someone disassembled the final drive, found all the damage, and figured that they could get away with just replacing the pinion to have the tractor move well enough in order to sell it so that it would be someone else's problem..?

 

[Drag racer]

Nige I thought of that also but looking at fasteners and seals it showed quite a lot of usage since being apart. I will put everything
back as manual shows.

 

[Drag racer]

Good idea to shy away from the Chinese bull gear products. Go for the Italian Ghinassi brand, they are every bit as good as Cat, but much cheaper.

High precision spare parts for industrial earthmoving machines | CGR Ghinassi

CGR Ghinassi parts are perfectly interchangeable with the genuine equivalents and provide the highest guarantees of strength and durability

www.ghinassi.com

The following brands are Chinese. A lot of sellers refuse to reveal where they source their parts/components.

Blumaq
Costex (CTP)
Reliance
Virtually all of the Florida-based aftermarket parts sellers

It is funny at times how they go in circles to keep from giving the country of origin.

 

[OzDozer]

The part that grates, is when you purchase a genuine Cat part, and it has "Made in China" on it!

Now, I don't mind paying Chinese prices for Chinese-made parts - but I object to paying Cat prices for Chinese-made parts!