Re: What's the diff ?
 

I'm on it 25 axle next WooHoo:cool:

Re: What's the diff ?
 

If the loader was a 992 I could say I've rebuilt both these models from the ground up many times but 994 are just too big for any area I've worked in.:(

Anyway, really cool picture of the 2 extremes from underground to surface, technically speaking, for CAT, this is smallest underground loader to largest surface loader.:cool:

http://i1275.photobucket.com/albums/...pstr2evmhl.jpg

Re: What's the diff ?
 

Cool comparison Mario!

-Terry

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When I first glanced at the photo while reading the posts above it I thought I'd be reading about some really neat RC loader, until I read read that they are 1:1, just built for 2 different worlds!
Thanks for posting Mario!

Re: What's the diff ?
 

Glad you guys like the pics of the 994 and the 1300. :)

Wow, been along time since I posted on this thread and the forum for that matter. Still on a RC break and haven't done a thing with them and work was just kinda moving along as the weeks and months of working on 740 Rock trucks and 336 excavators keeps me busy.
I'm in charge of repairs on the heavy equipment rental fleet in our area. Can get monotonous until today! :bounce:

Boss asked me to stop the rental work for now because a 992 arrived and needs to be split. Center hitch is worn out Bad enough it needs line boring. Nasty loader, not like something from an open pit. This poor girl works in the steel plant slag yard. Tipping pots, digging in slag, molten metal , nasty place.:eek:

Anyway, washed somewhat in the morning, backed into shop at 1pm. I have a helper with me and by 3:30pm machine is split and ready to remove bearings , clean up and set up for boring! :D

http://i1275.photobucket.com/albums/...pszfmry9me.jpg

http://i1275.photobucket.com/albums/...ps3l4i2fss.jpg


Now THIS is a driveshaft! Break a leg if this baby falls on you :eek:


http://i1275.photobucket.com/albums/...psderrpxpb.jpg

http://i1275.photobucket.com/albums/...psv3xuv5am.jpg

http://i1275.photobucket.com/albums/...pshg4wv7nm.jpg

http://i1275.photobucket.com/albums/...psoufhx38k.jpg

Been awhile since I worked on one of these and I love it! Nothing like working on big iron.:D

Re: What's the diff ?
 

Love these shop pics, some impressive equipment that rolls through there!

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Hi Mario

Great set of photos in this post may thanks for taking the time to share with us all.

Thanks

Re: What's the diff ?
 

Mario, you can tell from the looks of the loader, the heat and material would be real abrasive to all the open bearings. The pin lying on the back half looks very worn out!! Would be like riding a bucking bronko trying to drive it
How far do you let them go before you rebuild them?
Rob

Re: What's the diff ?
 

Normal interval for a mid ship rebuild on a loader this size is 30,000hrs. If all the machine does is feed or load processed material usually means just pins and bearings need to be replaced. If it works hard in a open pit digging blast rock or slag pile like the steel plant, then things need line boring also.

This machine in the shop is by far the worst I've ever seen:eek: as I drove it around the yard and into the shop it felt like somebody was under the cab hitting it with a 20lb sledge as hard as they could! Talk about " feeling it in the seat" :lol:

The owners of this machine obviously do not believe in proper maintenance and operation ( can't blame them when you consider the environment it works in ) I noticed steer stops are way out of adjustment. Frame has slammed into the stops on one side and not the other. Never suppose to have hard contact between the frames, when you do, ruins the center pins a lot quicker.
Things are shot and will need line boring for sure, along with steer cyl pin bores.

They let it go way too long.....all about production right, can't shut it down :rolleyes:....well, it's down now and going to cost a whole lot more than just pins and bearings.:cop:

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Thanks guys, my pleasure. Wish I could take better pics inside but I can't find anywhere far back enough to stand, loaders too big! :lol:

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I think this has been mentioned before but why the cutout in the tire tread?

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Not sure if its been mentioned before Reg, I've seen tire guys underground using a tread depth gauge in those cut outs to measure and keep track of tire wear. I think that's the only purpose? or maybe also just a part of the tire making process?

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That would be the only reason for it in my mind but I'm no tire guy. Makes sense that it would otherwise be difficult to gauge wear without it on a smooth tire.

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Yes thank you for those pics!!! Will be a good reference for a future project ;). Need a big loader in the backyard quarry!! Good to hear from you also!! A little time away from the hobby will just increase the desire for that new backyard layout!!!

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Big loader build sounds good! :bounce:
See, you should have made more tires while you were at it with the truck build! :)
I'm going stir crazy thinking and waiting to tackle the new yard and set up my new massive shop. 5 yrs ago I was building on the kitchen table to unheated garage bench, to basement man cave and now a 30X40 shop.:eek::jaw:
It won't have your toys but I'll love it.:D

Anyway, couple machining pics for the metal guys. :D

http://i1275.photobucket.com/albums/...ps2wlcoxte.jpg

http://i1275.photobucket.com/albums/...psjwaigiu7.jpg

http://i1275.photobucket.com/albums/...psftnl9aby.jpg

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Great pics of the boring machine. Does the boring machine bolt to the pivot point or is it held on by magnets? Do you have any that shows the actual boring cutter head? Interested in what size it is. Thanks for the pics.

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I'll get some more pics Lynn. He still has to do the back half so I still have a chance at some pics of the bore welder and a video. Amazing how quick and well that works.

My apologies if terminology is off, the boring head is mounted on spherical, mounts on the boring bar supports. The last pic kinda shows how the bearing cages are rounded. The machine clamps on with the same curved socket so even if bar isn't true in the bearing support, the drive still connects. All bolted, no electro magnets.
I'll get more specs and pics......I'm still trying to figure out how the machinist is going to fit a 9ft bar in the back frame with cab still installed? :confused:

Re: What's the diff ?
 

Thanks for the info. Wondered if you welded up the bore so you could re-bore it and use the same size bearings.

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Got some more pics and a couple vids today.

First pic is showing top front frame bore being welded. That's a 10" diameter bore , 8" thiick ! :eek:

Meanwhile, welder is repairing cracks and cutting out and replacing a cracked fishplate.
Machinist managed to get a 8ft bar in between rear frame bores but a very tricky process. Had to pre install 2 bearing blocks then feed shaft through bottom bore then up through top. Add the 2 end blocks and get things all lined up.
Due to tight space under cab the 8 ft bar is not long enough so after everything was set up he managed to have enough space to remove the long bar and then do each set of bores with a short bar.

If I wasn't a mechanic, I'd love to do this machining work. :)

http://i1275.photobucket.com/albums/...pss71r6ue6.jpg

http://i1275.photobucket.com/albums/...ps3tvlinjz.jpg

http://i1275.photobucket.com/albums/...psnue7tfjr.jpg

http://i1275.photobucket.com/albums/...psqgdqeypn.jpg

http://i1275.photobucket.com/albums/...psnaqcavrq.jpg

http://i1275.photobucket.com/albums/...psfgszhyzn.jpg

This pic he's just setting up the welder which anchors to the rod seen.

He takes a cut, then welds, then cuts again to finished size.

http://i1275.photobucket.com/albums/...psiw8a1qco.jpg

https://youtu.be/93cjfZfTaDU

https://youtu.be/HA6GqR6cBho

Re: What's the diff ?
 

Cool stuff Mario. I need a boring machine to clean up the boom pivots on my mini excavator. I think that one might be a bit too large though:rolleyes:.