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951b cat traxcavater diesel

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jccleav View Drop Down
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Joined: 11 May 2011
Location: Indianola IA
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    Posted: 07 Oct 2011 at 6:56pm
Tomorrow I am going to to look at a 951b cat traxcavater diesel. Is there anything I should be looking for?
The joy is in the journey.

AC "B" and "WD" and "C"
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Mactractor View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mactractor Quote  Post ReplyReply Direct Link To This Post Posted: 07 Oct 2011 at 7:16pm
Yeah, a good Caterpillar mechanic.
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Coke-in-MN View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 07 Oct 2011 at 8:33pm
track and undercarrage , shift smoothness, loader pins and bushings .
40 year old cats still bring good money in parts and labor to repair ,
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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Post Options Post Options   Thanks (0) Thanks(0)   Quote peter hobbit Quote  Post ReplyReply Direct Link To This Post Posted: 08 Oct 2011 at 2:45am
951B is a resonably good machine
Like coke said check trackgear, engine starts ok; oil and coolant condition.
Same as transmission oil condition. You don,t want any water contamination in the oil.
look carefully around machine for faults etc; and decide if its resonable value for money.
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jccleav View Drop Down
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Joined: 11 May 2011
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jccleav Quote  Post ReplyReply Direct Link To This Post Posted: 08 Oct 2011 at 7:50am
what would be a fair price? I know it is a loaded question like asking the price on a tractor.
The joy is in the journey.

AC "B" and "WD" and "C"
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Coke-in-MN View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 09 Oct 2011 at 7:10pm
several places on web have auction prices and also retail price lists on construction machines .. just do web search to come up with something in your area as prices vary by location.
 Friend bought a 751B in 1972 and still runs it but has gone through 2 tranys and lot of track and undercarrage also , I have run it to load trucks and dig a few basements but to me the controls are backwards to my AC machines ..
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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HD6 Merv View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HD6 Merv Quote  Post ReplyReply Direct Link To This Post Posted: 13 Oct 2011 at 2:36am
Hi Coke; alot of people critisize Cats seemingly backward actuation of the bucket tilt controls; but in dozing operations using the bucket it is far easier to use than the standard controls.
If you are grading off a tiphead using the bucket flat on the ground; when you get to the edge you grab both levers with your right hand and pull both back together.
The loader linkage will rise and at the same time the bucket will tip forward dumping the dirt, all with the one hand.
With the normal controls you have to try and move one lever backwards and the other one forward with the one hand; and most people have to use 2 hands.
The transmission in 951B/C; 941 and D4D is all the same and very robust.
I,ve rebuilt alot in my time; and if your friend had to replace 2 of them then he must be doing something very wrong IMHO, either operating or maintence wise. Am fairly certain the 955L used the same trans and its another 30hp more than a 951B.
Cheers Merv
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mactractor Quote  Post ReplyReply Direct Link To This Post Posted: 13 Oct 2011 at 4:23am
What use is that bucket control setup when you are using the machine for what tracked loaders were engineered to do - LOAD!  NO USE AT ALL. Buy an HD7G.  Mac
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Post Options Post Options   Thanks (0) Thanks(0)   Quote michale34 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Oct 2011 at 9:10am
my dad bought a 955 with a pony motor on it one time he loaded with it for a while all i can say it wasent long the 955 was gone and there was another hd6g loading his  truck.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HD6 Merv Quote  Post ReplyReply Direct Link To This Post Posted: 13 Oct 2011 at 2:58pm
Hi Michael; that 955 must have been a real early one if it had pony start; all those early caterpillar loaders were an absolute abortion of engineering to work on; and if the pony motor wouldn,t go; well a man with a shovel would have been better to load with !
Your Dad was much better off with the HD6G; in the 60s and early 70s they were certainly the best loader in there size range in both performance and reliability.
Mac; track loaders are a multipurpose tool, mainly used for site development and haeavy excavation. If you were straight loading trucks everyone used a wheel loader; and they still do.
The track loaders work domain has 90% been taken by the hydraulic excavator.
But a good 10 ton track loader with a 4 in 1 bucket is still a very usefull machine.
In fact the small tracked bobcat skid steer loader is just a evolution of the track loader.
Both 951/941/HD7G are all good loaders. But my personal pic from a reliability view would be the HD6G. Problem would be finding one. As most people who have one don,t want to sell theirs.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mactractor Quote  Post ReplyReply Direct Link To This Post Posted: 13 Oct 2011 at 3:29pm
Wheeled loaders were and still are used to load only loose material and only on easy ground. The tracked loaders job was breaking out hard material and loading directly onto trucks, and when fitted with log forks, they did nothing but load and unload. I guess thats why their called tracked loaders. Hence my comment on the Cat bucket crowd control - Useless like that.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HD6 Merv Quote  Post ReplyReply Direct Link To This Post Posted: 14 Oct 2011 at 1:41am
Just depends what your used to. I,ve done about 3000hrs on 933G and 941 loaders and about 6 on a HD6G. You just hop on the machine and get used to it, like swapping from gear drive to apowershift machine. Like changing from a fork to a spoon. On a trackloader i just prefer the cat controls.
But i will concade diggers are a different matter; it does depend on what swing control pattern your used to. Or depending if your a caterpillar or hitachi preference person.
At least with the later multi control machines you only have to tern the rotary valve handle to change to your prefered pattern
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mactractor Quote  Post ReplyReply Direct Link To This Post Posted: 14 Oct 2011 at 4:51am
I have no problem swapping from powershift to direct drive, but to not mind having to move the lift and crowd levers in opposite directions while filling buckets and forks through loading cycles, you must be an extremely efficient, productive, and sought after loader operator Merv. I will recommend you to others

Edited by Mactractor - 14 Oct 2011 at 9:11am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 14 Oct 2011 at 10:44am
On the 5 it just seemed easier to pull back on the boom lever to detent position and when dumping bucket to push forward to dump. as far as from direct drive to power shift or fwd/rev direction doesn't seem as big a problem adapting . then HD5 with brakes set for each foot was easy and the HD4 with them close together and using one foot for them and one on decellerator always got me mixed up.
 Now on FD5 with pedal steer and decellerator on both side my feet end up being crossed sometimes .. LOL .. end up hitting center pedal and saying think this out for a moment what are you doing .
 Track loader will load in a smaller turn area than a wheel loader and that is one advantage and yes a skidsteer has replaced the track loader in many places, but underdigging on existing houses I usd my HD5G on many jobs, working for friend who used a excavator and skid loader as well as his 951 once I moved material out so he could get to it with bigger machines.
 My HD5G would do in 2 hours of digging a basement what it took a skidsteer or wheel loader 4 hours to do. Yet my AC 715B will load a truck in 1/2 the time of the HD5
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tad Wicks Quote  Post ReplyReply Direct Link To This Post Posted: 14 Oct 2011 at 6:30pm
 You guys and all this modern stuff (insert smiley face here) I happen to own a Cat D4 7U Trackson Hydraulic made in Guatamala, now that is going back a ways and it is a horrid damned thing, I swear, it must be the spawn of the antichrist. Now, one thing to remember, no matter how old, how hard to operate, frontwards or backwards controls and how miserable you are while doing it, any piece of equipment out there in, my opinion, beats the beejeebers out of using a shovel and a wheelbarrow. (put another smiley face here)   Tad



Who has more fun than people on tractors, sometimes the older the better.


Edited by Tad Wicks - 14 Oct 2011 at 6:49pm
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HD6 Merv Quote  Post ReplyReply Direct Link To This Post Posted: 15 Oct 2011 at 1:14am
i do feel for you tad The cat HT4 No6 955 and 933 to a lesser extent where some of the most evil machines to work upon that mankind ever created. I still think the wheelbarrow and shovel {or RB 1 as it is called downunder} would still be more healthy and less stressful to drive.
As a irishman once told me; fill the back of the shovel lad. The front will fill itself.
When Van Doebeus designed and built the HD5G for AC  in 1948 he was light years ahead of the opposition in his design and operation; compared to things like tracksons rope loader D2. AC were already up to the HD6/7G before cat finally caught up with the 933G and 955H.
I started operating on a 933G a mighty pocket rocket when it was running, but still a dog to fix. And i had to drive and maintain it on a 6 month work contract to a roading authority. It had 9 levers sprouting out of the floor and man needed every single one of them to make it perform, plus a pedal for each foot.
So yes a boy did have to learn real fast. But track loaders are almost a thing of the past here. Hyd excavators have completely replaced tthem, In fact the only one i know of locally is Mactractors HD6G; but since the bucket controls are the wrong way around, he.ll have to drive it ! ! !
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tad Wicks Quote  Post ReplyReply Direct Link To This Post Posted: 15 Oct 2011 at 11:51am
Merv, I just don't know what Cat was thinking when it came to the track loaders, I guess just like all Cat equipment, from an operators standpoint, probably the best out there, (in my opinion) from a parts replace standpoint, probably the best out there, from a mechanics standpoint, all I can say is   "THEY SUCK"   especially the 977 type loaders, which I have had the displeasure to encounter more than once. I can't imagine a piece of equipment that supports itself by the engine pan and then having to raise it up, remove the spring/bar to get to the bottom end of the engine, much less access anything else, anywhere else on the machine. I did a top end, injector pump, front main seal, water pump on one, but I don't think that was as bad as pulling the pony on the D4 Trackson, the D4 pony is a gold plated #$^%%$## to do on a regular tractor, there are a few nuts under there that should have been forcibly inserted into some engineer's anatomy  (insert smiley face here) now, add all the lift arms and goodies and you have a recipe to conjure up your own vocabulary and voice those words as loud as you can. I won't even bring up the bucket geometry, or lack thereof, on the early Trackson and it's inability to curl back and dump sufficiently. Butt it is still better than a  RB1 (put another smiley face here) ( what does RB1 stand for anyway, inquiring topsiders need to know)   :-)






Who has more fun than people on tractors unless they are working on a  D4 Trackson or 977     Tad



Edited by Tad Wicks - 15 Oct 2011 at 11:57am
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HD6 Merv View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote HD6 Merv Quote  Post ReplyReply Direct Link To This Post Posted: 15 Oct 2011 at 3:59pm
Ahh yes I indead do sympathise with you tad The best place for all those early cat loaders is a musuem or dare i say it cremotoriun ! Alot of cat stuff was not thought of with the mechanic in mind. Ac were alot ahead here; esp HD6 size compared to a D4. Even on a D4D you have to remove equaliser bar to drop the sump. As for a RB1. you guys had Bucyrus erie machines we had Ruston Bucyrus; made under licence from BE in pomland. They all had numbers RB10. BE15. RB22. So naturally the smallest would have to be a RB1 with a wooden jib. ie a shovel. ! !
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