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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

CATERPILLAR TOOLBAR knowledge

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don weymiller

09-29-2003 08:13:34




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is a cat toolbar on a d4d suitable for mounting a hyd. winch and/or skidding logs (10,000 lbs. pull)? can they be mounted outside of a dozer C frame and both operated without interferance ? I've only seen a couple pictures and breif descriptions so any experience is appreciated.




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possum

10-01-2003 18:14:33




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 Re: CATERPILLAR TOOLBAR knowledge in reply to don weymiller, 09-29-2003 08:13:34  
Don, I love imagination at work. I recommend you not put a blade on the back, just the tool bar. Make it sturdy enough to handle a blade and it should push the brush down alone. I would suggest also that you make the geometry to give you a very high lift and run the cable through a sheave hung on a clevis under the toolbar. If you have a second trunion behind the blade mounting trunion (Cat often did. Look for a 4-bolt pattern with a larger fifth hole in the center.) and mount a toolbar on this trunion identical to the one on the front with the same lift stroke it will have much greater vertical range than does the blade.

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Deas Plant.

09-29-2003 12:46:24




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 Re: CATERPILLAR TOOLBAR knowledge in reply to don weymiller, 09-29-2003 08:13:34  
Hi, Don. Re mounting a tool bar so that is independent of the blade: To do this, you would need to weld on an extra set of trunnions as the tool bar was designed to work as either blade or rear tool bar. Simply remove attachments at one end, swing the arms around to the other end and fit the next lot of attachments. I guess it would be possible to weld a set of trunnions either behind the normal dozer trunnions or on the outside of the dozer push arms to accomodate the toolbar but then you may have problems with either toolbar draught arm length, lift geometry, or both. You would also need either another live hydraulic circuit or a changeover valve set-up to work both, one at a time, which can be a PITA. The toolbars were designed to take anything the tractor could put on it by way of pull or push, so I'd guess it would pull some fairly respectable logs. As for mounting a winch, if you are talking about the normal Cat rear-mounted winch, it is possible that you would have space for it between the rear of the tractor and the tool bar but I'd do a little judicious measuring with some relevant information in hand before ordering your winch. Hope this helps. You have a wonderful day. Best wishes. Deas Plant.

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don weymiller

09-30-2003 10:21:10




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 Re: Re: CATERPILLAR TOOLBAR knowledge in reply to Deas Plant., 09-29-2003 12:46:24  
this helps -thanks for yhe wonderful day! my d4d has a second set of trunnions outside those the C frame is mounted on (for wider track pads?) to which i'd like to attach a second set of draught arms to a light duty rear faceing blade. This need only push brush and trash backing into timber and with addition of a fairlead function as a log arch elavating pull when skidding. this arrangement impresses me as similair to a toolbar dozer but i am uncertain about the lift cylinder mounting and the swing mechanism interfearing with sprockets or track when raised and turning pulling a big load. what is a PITA valve or the american eqivalent?

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Deas Plant.

09-30-2003 12:57:40




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 Re: Re: Re: CATERPILLAR TOOLBAR knowledge in reply to don weymiller, 09-30-2003 10:21:10  
Hi, Don. PITA = Pain In The A**. It's not a valve, it's a condition. You can solve the swing/sway problem with your rear toolbar by putting some pretty substantial diagonal braces in the corners between the push/draught arms and the rear bar or blade. Both ends of these braces should be pin-installation unless you NEVER want to remove the blade or change anything there. The ram mounting/location will be largely a matter of 'edumacated' (or un-edmacated_ guesswork. Look at the set-up with the toolbar with blade resting on the ground. Using a piece of timber or a steel bar/rod cut to the same length as the rams a couple of inches short of fully extended, check to see where they might work and go from there. (A solid measuring stick is easier to use in this sort of situation than fooling around holding both ends of a measuring tape.) Hope this helps. You have a wonderful day Best wishes. Deas Plant.

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