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D7-3T left track not moving?

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2 months 2 days ago #230801 by Deas Plant.
Hi, Razorback Cat.
Following on from Ray54's comment, that is why I suggested you try giving the brake band a few good taps with a long punch and a hammer. If it is rusted to the drum, that MAY be enough to break it loose.

Just my 0.02.

You have a wonderful day. Best wishes. Deas Plant.

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2 months 2 days ago #230802 by Razorback Cat
I will sure try. Going to try to get back to it tomorrow. Thank for the advice

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2 months 21 hours ago #230858 by Razorback Cat
We worked on getting the dozer moving in between other chores but I do have a question? I was going to pull the brake bands off the left side. How do I get to the retaining bolt that holds the bottom section of the band to the drum? It is a 1953 in the 20k serial numbers.

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2 months 20 hours ago #230865 by edb
Replied by edb on topic D7-3T left track not moving?
The bolt you mention is simply a support screw to support the weight of the brake band and it stops the upper side of the band loop dragging on the drum and so wearing out the upper section linings--it is accessed from under the main case just forward and outside of the brace arm caps each side--they need to be removed so the band can be spun around to access the split clamp for removal of the band sections, this is after you have removed the fuel tank for ease of working room but you may get the band sections etc. out with the tank simply raised up on sturdy blocks, remove the larger cover over the steer clutch compartment, and the small rear cover plate on the main case in line with the brake bands, then the adjuster mechanism and brake band anchor fork and pins.

There should be Servicemen's Reference Books (SRB) for the D7 of your era in the Library that membership would allow you to access.
SRB is Form No 7196C is the one I have here and also covers the engines.
The Operation And Maintenance Instructions (OMI) grey book Form No 10481-6, covers 7M1 to 7M9999 and 3T1 to 3T28058.
The "C" and the "-6" on the end of the form numbers indicates the change level of the book--the higher the change level the later the information it contains.
Hope this helps,
Cheers,
Eddie B.

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