D6R series II equalizer bar ??

Our D6R AAX1326 year 05' has the grease type equalizer bar ends, my question is, does the center pin get grease also or 80/90w? The operation maintenance manual is vague and doesn't even mention the grease type ends only oil filled. Hope it's supposed to get grease cause that's what we've been doing

Nobody else has this bar? Constructo ? Jerry?

Grease... It is lubed by a remote line on the l/h of the engine bay

simonsrplant said:

Grease... It is lubed by a remote line on the l/h of the engine bay

Click to expand...

That is what I thought, manual says to lube the engine bay zerk with 80/90w, must just be the other bar that requires oil in the center pivot, was wondering if we filled the oil cavity with grease

Track frames hold oil... Could refer to those? I'll check on sis Monday just to be sure!
Putting doubt in my mind now!

Hi Depete , the center pin gets grease as simonsrplant indicated . the e-bar end bearings should get 80/90 , use a grease gun filled with gear oil to fill through grease fitting at the ends of bar . what makes you think that yours is grease type?

Dpete I believe you have done the correct thing. The OMM is a little poor on the subject or could just be hinting wrong but the center should just be grease.

1. The ends are oiled and level can be checked. There is no way to check the oil level if you oiled the center pin. It is such as small amount that if it leaked out you may not even know before damage is done
2. The center has different seals than the ends. The center just has single lip dust seals designed to keep dust out not fluid in.

I read where the oil end bar was an option in those days

Try one at a time, to small sorry

At the end of the day whether its grease or oil in the ends it's not going to make a world of difference. Just when greasing you have to be very careful to not overfill and push out the seals. As soon as the seals rip or tear most guys grease and this prolongs the need for an immediate repair

I think there is an update with a pressure relief valve so as to be able to grease the end pins without creating too much pressure inside them.
My issue with the oil-filled end pins is that they contain so little oil that if a seal starts leaking and no-one spots it the end pin can lose all the oil and run dry - and that is a recipe for disaster.

Nige said:

I think there is an update with a pressure relief valve so as to be able to grease the end pins without creating too much pressure inside them.
My issue with the oil-filled end pins is that they contain so little oil that if a seal starts leaking and no-one spots it the end pin can lose all the oil and run dry - and that is a recipe for disaster.

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I agree 100% Nige.

DPete said:

Nobody else has this bar? Constructo ? Jerry?

Click to expand...

Dan

Just seen this, and I was not sure the answer till I read them below. I have a new to me 2008 D-6T LGP with oil filled ends, and my older D-6R, about a '96 vintage is all grease, and over the years we have had plenty of trouble with it. I am hoping the oil filled ones are a better deal.

Hi Jerry, I had the belly pan down for trans service so I got a look at the center pin, just going to continue with grease assuming if you have grease type ends the center is also.

The E'Bar on near most all D6 high drives can usualy be found to have some issue to the pin mounts (3) or the bearings, this is 1 area that CAT seem to struggle with even after loads of up-dates to the beam and all pin locations, the grease or oil that you stuff into them often fails to repay your efforts, the centre pin location to the main frame is out of sight and often out of mind for most service men and drivers, the bushings in the track frames often rattle loose and add to the pain, the beam end bearings need to slide on the pins to counter the distance change as the frames move through their full range of movement, even this bearing-pin sliding hardly handles the arch range of the frames, near every LGP D6 tractor in the U.K. over about 3 years old will have some need for repair work within this area, the centre pin location has had a few repair update sheets printed on this location, plus the beam has had loads of updates, if I need a job I only have to look at an equalizer beam in a D6H/R, its not 1 of CAT's better days work, I would recomend its greased or oiled 3 times a day then it might last a few years??
tctractors

Yair . . . I find it difficult to get my head around this style of equaliser bar. . . can anyone explain how the end bearings/pins attach or roll across the trackframe? (shakes head)

Cheers.

Hi Scrub, nothing rolls across the frame, the self centering bearing in the ends is where movement happens, they are pinned in place on the swing frames so if everything works right and is lubricated there is no wear on the bar ends or the frame like the old bars did on the D8H's for example. If you remember the early H's had rubberized clamps with a V that fit the V on the equalizer bar and clamped to the saddle to hold the bar centered at least for a while when everything was new, the bar ends just sat on a pad in the frame and were always worn.

Simple. A spherical bearing in the end of the equalizer bar with a seal on each side of it. The pin goes right through the whole shooting match plus 2 bores in the track frame and is retained in position by a flag and a bolt.

Yair . . . Gotcha DPete.

It's those self centering bearings that's got me beat . . . I'm a bit thick and I need to see something to understand it.

These were pretty simple . . . .



The springs just sat on the track frames. I think there was a keeper and a sacrificial wear plate.

Actually we gave up on the springs they used to break leaves and so I started welding them together and it worked okay and so we never bothered replacing them and just welded the whole thing up into a solid equaliser bar a la Cat.

The spring was bushed and greasable and pivoted on about a 4'' pin through the saddle that was known at times to break.

Cheers.

Yair . . . Thanks Nige . You posted while I was typing. As I said, I'm thick and still don't get it.

That is to say . . . surely the track frames move up and down on a constant plane and the centre lines of the pins holding the end of the bar to the trackframe describe an arc around the pivot point?

I don't understand how a spherical bearing (as I know it) can maintain alignment through the range of travel . . . in other words the centre distance when the tractor is sitting level should be different to when the trackframe is at maximum deflection.


Cheers.