I can see the differences in the different links, but does not mean they are junk. But not being experienced in crawler operation mopardude318 you are at a disadvantage in realizing when a track is in danger of coming off.

I have a old D6 that has been converted to the D5 track. It looks very good but any sidehill turn has it walking up on the roller. I quick bolted up a pair of the light dirt guards on the left side as I was discing a lot of walnut orchards at the time making almost all left turns.Did not help much. The bushings have not been turned and to my not expert eye are not in need of turning. But internally I guess they are ready for a turn. Another old D6 I got cheap has very warn rails that have to near 100% or more warn. But have had new pins and bushing put in them not many hours ago. They never walk up the rollers. Pictures are a very poor way to evaluate track wear. The spalling I see looks like a set of Berco chains I have on another D6. They have chipped from all the limestone they have been in. From talking to others, Berco links are harder than a Cat link which is very good in sand but not so much in rock.

So I would try the tracks you have and see how they go. Any popping sounds or the track become tight when turning are all bad signs.


To answer the question asked, carrier rolls in the term generally used for the rollers hold the track up. Idler is the common turn for the wheel in the front.

mopardude
I'd be checking the length of the injection lines for routing with the added turbo. Could be new line/s may not fit right around the turbo mouning either.

Hi mopardude, Here's some pictures of me and my D6B. The original owner lives in New York state.

 

My D6B has been converted to D5 tracks. Note that my D6B is not equipped with track guides. The bottom rollers are exposed.

 

I'll send you a PM please look for it;
Craig

  

 

I checked the injection lines against a 53Axxxx (977) and an Industrial engine B8Axxxx  (Industrial Engine) both with same engine but with factory turbo and they use the same injection lines so that concern is mute. Aftermarket lines would probably  be ok if you can get them or nothing wrong with good used Cat.

Hi, Old Magnet.
I looked at the injector lines on mopardude's D6B and I couldn't see any reason for the 'suffering' they have been subjected to as they don't appear to have originally run anywhere near the turbo. If the current sharp bends were still in their original 'delicate curve' form, it seems to me that they would be well clear of the turbo.

Just my 0.02.

I was looking at the clearance around the turbo mounting flange, not the turbo itself.

Did the parts guy check to see if Cat has these fuel lines in Yellow mark parts, they use to have a lot of fuel lines there at after market prices.
After market parts will be fine.
As for dampener clamps 3306 parts will show 2 sizes that will work a 2 or 4 bolt.for 3 lines.
If you are going with new lines get the clamps
as for your tracks they won't need help for a while other than finding the cause of the misalignment.
Bob

Plug in the line part numbers at www.machinerytrader.com parts search. Lots of new, aftermarket and used sources to choose from.

ebay can be a source of manual in hard copy there is also a cat publication website you might be lucky and get a reprinted manual.

everything start with the serial number when it come to finding parts. a parts book is a god send. you can then use the parts.cat site to find parts if they have a listing it will show up there. note the older part numbers need a zero added to bring them upto six characters so in example 4f1234 would become 4f01234

you can even set up a account and order the parts from your local dealer via the parts website

and yes you could get aftermarket fuel lines made but dont disturb them till you are doing the job A: for cleanliness and b: as they are damaged you disturb em they probably would leak. at the moment there not and you can move the machine if need be.

a google search of the part number can be help full especially if it gets you the national stock number every thing that was sold to the american government has one since the NSN system came in its how the military and dot etc know what else uses the same parts.

the hydraulics fitting are SAE code 61 note the genuine cat fittings can have a thicker flange so sometimes a spacer ring is needed to use aftermarket hose ends with cat clamping flanges. any good hose and fitting shop will have them.