CAT 374D L

[Hemi1966]

Originally Posted by speedy8305

hey guys the 374 does not have a sliding under carriage I am a heavy equipment technician and CAT is the majority of the equipment I work on it has a fixed undercarriage but all in all I think the model looks great and the site is great as well you guys are very talented

I think you are wrong about that, if you look at the picture of 374 on a low loader couple of pages back, you can see how the x-frame is sticking out on the side and the tracks are much narrower than normal. Also the Cat 374 brochure talks about the variable gauge undercarriage. But I also believe that not all of the 374 are equipped with the variable gauge undercarriage.

Here's some progress I've made. Got the swing bearing done

[ihbuilder]

looks great Ari now where did you find that gear ? I've been looking forever for the right size .

[Hemi1966]

Originally Posted by ihbuilder

looks great Ari now where did you find that gear ? I've been looking forever for the right size .

Got the gear from HPC gears: http://www.hpcgears.com/

[ihbuilder]

Originally Posted by Hemi1966

Got the gear from HPC gears: http://www.hpcgears.com/

thank you Ari

[Lil Giants]

hmm... so what is the length from center pivot to the bucket teeth in this picture (or what its reach @ ground level)?

The 374 is progressing beautifully Ari... but have you been spending any time with the grader outside this summer? Need more eye candy of that machine in motion, plz!

[elliot330]

Once again Ari, you've excelled yourself. It looks stunning - When you taking orders

Technical question from a dumb *** ( me )

Shouldn't the super structure sit on a thrust bearing or can the bearing you fitted take the heavy load from above, ie side load??

[RCP57]

Looks to me like you're just stalling off on building those track pads.

Looks great!

[Hemi1966]

Originally Posted by elliot330

Once again Ari, you've excelled yourself. It looks stunning - When you taking orders

Technical question from a dumb *** ( me )

Shouldn't the super structure sit on a thrust bearing or can the bearing you fitted take the heavy load from above, ie side load??

It's not a dumb question Elliot, I was thinking that myself but I think they will hold. If necesary I can attach bronce ring under the upper structure that will rotate over the ring gear. Those thrust bearings tends to be too high and they

[CAT315C]

Has bearings and ball dual layers also have roller bearings that may come to serve for the application.

Carlos

[Hemi1966]

Originally Posted by Lil Giants

hmm... so what is the length from center pivot to the bucket teeth in this picture (or what its reach @ ground level)?

The 374 is progressing beautifully Ari... but have you been spending any time with the grader outside this summer? Need more eye candy of that machine in motion, plz!

The length from center pivot to the bucket teeth is 95 cm.

And what comes to the grader I have used it few times but didn't have my camera with me

[Jared]

Wow this is great! I was real interested to see how you did the swing. I think the dual ball bearings will be fine. My milling machine has a similar arrangement for the spindle bearings to keep the spindle from moving up and down and it can spin 3250 rpm.

[doodlebug]

Great job so far,
I don't think you will have any trouble, with your swing bearing setup!

Cheer's, Neil.

[Hemi1966]

I couldn't make any more excuses not to start making the tracks so I started with the track links. I managed to make about 100 which is half of them. And there's still few a stages to do before they are ready. It's going to take some effort before tracks are finished

[ihbuilder]

fun , is it not ? I'm getting ready to run 400+ of those in aluminum then 160 in steel . I'm just trying to get the track pitch right for the 400+

[Hemi1966]

Finally got all track links done. I had to make a fixture for machining the other side and also for reaming the track pin holes.
It's hard to believe that I used almost 2 meters of 100x6 mm plate for the 200 links. I use to thing that factory made tracks are expensive but as I proceed with these they begin to feel cheaper and cheaper...

I also started to make the track pads but didn't got very far before I broke my last 3mm radius cutter

[Hemi1966]

Got some track pads done today
I decited to make them wider than I originally thought. The machine looks much better with little wider tracks, they are now 80mm wide.

[Bigrigger]

Nice progress, I can't wait to see this thing finished!

[Azonic]

Very nice, this will be good!!

[Hemi1966]

Guy's, if I ever get the tracks done and they even work I'll be very happy. But I think I wont even dream of tracks for very long time after they are finished, hopefully I don't get any nightmares of them

But seriously I wish there was an "easy" way to cast the pads and links together, but I have never done anything like that so not sure will that be any easier

[ihbuilder]

Not sure if it will be easier , Ari . I have a place down the road from me that does precision casting . they make a mold for the lost wax . A $200,000.00 + machine would be easier but not on the pocket Just a 4th axis in my VMC would do it . but then you'd have chatter with the stick out . There's just no easy or cheap way