May not be all bad, to me it looks like the rock guards have recently been rebuilt, tracks in reasonable shape. I think just a sign things settling in a bit where they may be overbuilt.

Contact Westrac and ask for a CTS inspection, that is a free service, they will measure tracks for wear and give you a life remaining in %.

My guess the extra trunnion was the tree pusher mount.

Hi, Westoz48a.
As ROME/KG said, that sort of wear is usually caused by worn rails and bottom rollers but is usually also accompanied by wear marks on the track pin bosses, as Wombat mentioned. That said, we can't see from your photo what the condition of the bottom rollers might be but there doesn't appear the be any wear on the pin bosses. There does look to be good rail height, your top rollers don't appear the worn much and your sprocket teeth look reasonable.

If it appears that the rock guards have been recently re-built, I would suspect that they might have been rebuilt too much.

Next 'kwestyun' - Are those scallops in the track plates current wear or are they past wear which might have occurred prior to a previous track refurbishment?

Just my 0.02.

Further to my previous comments, I am not sure of D7E rock guards, however D8H & K rock guards had a wavy bottom so that the track shoes and pin bosses would not come into contact between rollers. Those rebuilt rock guards in your photo have a straight bottom, so maybe that is where there is contact being made between rollers.

Not sure where you are in the West, however we are trying to get a Chapter started over there, if you join up to ACMOC and help get a Chapter started you will have a group around you that invariably will have someone who can help you get that tractor running nicely.

You can email me at <a href="This email address is being protected from spambots. You need JavaScript enabled to view it." target="_blank">This email address is being protected from spambots. You need JavaScript enabled to view it.

Wombat (Neil Clydsdale-Director)

Westoz asked how contact is made at the point he indicates, I gave an answer, plus any 'rock' on the sprocket caused by internal pin and bush wear will allow this especially as this is the closest contact point on a new machine. Roller and rail wear do not affect clearance at this point. Otherwise, its all good advice. I reckon its likely those pads have seen service with a previous worn out set of chains and rollers, that's why they are worn at that point, unless you can see fresh contact, then we are back to the over built rear guides or final drive bearings collapsed (I hope not), your Dealer Product Support Service Rep should do a free track inspection and give you some ideas. ( I was a UK dealer PSSR for 15 years so should have some idea.)

I'm with Wombat on that one.
The rear guide/guard and most likely the front as well appear to be home built and do not match the contour nor probably the dimensions of OEM parts. Other visual items of undercarriage don't appear to be all that bad.

&quot;DPete&quot; wrote:

Off subject but do you know what the rear trunion ball was for? They must have pulled something from them.

Did anyone answer this question?

Kelly

Hi, Kelly.
Yep. Wombat dunn it - beat me to it by one post. Extra trunnions are most likely for a separate tree pusher bar.

Just my 0.02.

&quot;Deas wrote:

Hi, Kelly.
Yep. Wombat dunn it - beat me to it by one post. Extra trunnions are most likely for a separate tree pusher bar.

Just my 0.02.

So he did. Thanks!

Kelly

&quot;Wombat&quot; wrote:

My guess the extra trunnion was the tree pusher mount.

No tree pusher I’ve ever seen is mounted to the rear trunion. Usually they are mounted to the C frame either just in front of the trunions or right up the front near the rope or cylinder mount.
I think the rear trunions are for a toolbar for rippers or other implements at the rear of the machine. They can have a smaller C frame in reverse or two arms mounted to a square bar.
www.fao.org/docrep/x5373e/x5373e0g.jpg
Regards

Phol

Hi, Philc.
I must admit that I have not seen as many tree pushers mounted this way as I have seen mounted to clevises welded on near the rear end of the push arms of straight blades or the C-frames of angle blades. That said, this method of mounting to an extra trunnion seemed to be more common in the heavy timber country in the South-west of Western Australia than anywhere else, at least from my observations.

I have also seen them used for a 'toolbar' of sorts with a cable control arrangement attached to the rear roof of a heavy timber canopy. BUTTTT, that rear-mounted ripper would mean either it would hafta be removed or a toolbar would hafta be a LONG way behind the tractor. And what would control it?

What you are looking at in your photo is NOT a 'toolbar'. It is a rear push frame for working with 2 tractors tandem push-loading scrapers. It was designed thisaway to avoid having the force from the rear tractor go into the mainframe of the front one and then have to be transferred out to the track frames. This arrangement put the force from the rear tractor directly onto the push frame of the front tractor.

Just my 0.02.