D7E brake bands

[texaschad25]

A friend and I started replacing the brake shoes on my D7E today. The current band that's on there is a 1 piece. I'm curious if there's a OEM or aftermarket 3 piece band that will fit back in there that is the same size. Thanks for any help!
Chad

 

[DMiller]

the S/N would be of utmost importance here.

 

[texaschad25]

I apologize . Yes, that would be helpful.
48 A10837

 

[Old Magnet]

A check of the parts books shows all brake bands to be one piece design.

 

[texaschad25]

A check of the parts books shows all brake bands to be one piece design.

Good deal. We pulled the clutch drums out and got the brakes replaced. I really appreciate your help and knowledge. While I've got you, I need to pick your brain on something. I just drained the transmission oil on this 7. (48A10837)
I've filled it back with 30 gallons of 30wt. I also changed filters. Problem I'm now having is that after pushing for 10-15 minutes, it sounds like the pump is cavitating and movement will eventually stop. I've checked the pickup hose and double clamped both sides, and it's still doing it. Where would you look next to figure out the issue? I cant see any obvious leaks, but I'm wondering if it's sucking air somewhere or if the flow is restricted..
Let me know what you think.
Thanks
Chad

 

[Bluox]

Good deal. We pulled the clutch drums out and got the brakes replaced. I really appreciate your help and knowledge. While I've got you, I need to pick your brain on something. I just drained the transmission oil on this 7. (48A10837)
I've filled it back with 30 gallons of 30wt. I also changed filters. Problem I'm now having is that after pushing for 10-15 minutes, it sounds like the pump is cavitating and movement will eventually stop. I've checked the pickup hose and double clamped both sides, and it's still doing it. Where would you look next to figure out the issue? I cant see any obvious leaks, but I'm wondering if it's sucking air somewhere or if the flow is restricted..
Let me know what you think.
Thanks
Chad

Did you clean the screen in the bottom of the transmission where the suction line hooks up and the screen in the magnetic filter? The O-rings in the mag filter tend to get hard and will leak air.
Good luck
Bob

 

[texaschad25]

No Bob, I did not and wasnt aware there was a screen filter there. Will I lose all of my fluid when I take it out to clean it?

 

[Old Magnet]

48A6393-up does not have a suction screen in the transmission. It does have a straight tube passing through the transmission. The tube does have end seals that can leak air. (and oil out)

 

[texaschad25]

Could a air leak around the filter housings cause it

 

[texaschad25]

I think we found the issue..

 

[Old Magnet]

Disintegrating hose, leaking lid gasket at strainer, seal leak at transmission connection, leaking seal at transmission pump are all candidate leak sources.

 

[Bluox]

I think we found the issue..

That's where your brake pads went..
Where did the magnets go? Usually that screen comes out in one piece, Cat will have another one. I replace all the O-rings on the filter can and hoses at this point.I like to take the suction hose off the transmission just to check for a screen or flashlites or screwdrivers or rags etc. You will have to drain the new oil.Might as well change the old hose and clean the torque divider screen..
Good luck
Bob

 

[texaschad25]

That's where your brake pads went..
Where did the magnets go? Usually that screen comes out in one piece, Cat will have another one. I replace all the O-rings on the filter can and hoses at this point.I like to take the suction hose off the transmission just to check for a screen or flashlites or screwdrivers or rags etc. You will have to drain the new oil.Might as well change the old hose and clean the torque divider screen..
Good luck
Bob

It did come out in one piece but we had to split the screen to get the magnets out. That thing was a booger to get out of the dozer. Pry-tap, pry-tap, yank... wouldn't be surprised if it's never been out. We ordered a new screen from Cat and it will be here tomorrow. Where is the screen for the torque divider? I'll Go ahead and do it too. Thanks Bob.

 

[texaschad25]

Screen and magnets

 

[DMiller]

That much resistance to flow will cause all sort of borderline air inleakage points to draw from. Get it changed and inspect as noted then try it again.

 

[Bluox]

Screen and magnets

Look on the back side of the torque converter housing just above the drain plug ,there will be a plate with 5 3/8 bolts it's under there .Change the gasket also. It's important to change the top and bottom seals on the mag screen housing and the seals on the tube to the pump.
good luck
Bob