Terex 82-80 Euclid TC012 wanted

Hi craig; yeah have a idea Bakers did make 1 out of 2 or 3. That one there was supposed to be Evans one; the last one sold i think.
From my hazy drunken memory it was rebuilt in the mid 80s; around tthe same time Bakers got there 2 D10s.
Bloke called Brian McWha [i think,surname is correct anyway] did alot of the rebuild.
Merv

A bloke Mike Johnson had two up north here converted for scrub clearing, The seat was up the front on the bonnet I think and each engine had a winch to steer the scrub roller.

Interesting, I've seen this set up on a 82-40 but never knew there was TC-12's set up like this. Where are they now Brainzie.

Yair . . . Brainzie and 68M.

Can you tell us more please? What was the set up? Why was the seat on the bonnet? What is a "scrub roller". How did it steer? Why was it hooked to a winch? You know, just a few details? LOL.

Cheers.

D6 Merv said:

Hi craig; yeah have a idea Bakers did make 1 out of 2 or 3. That one there was supposed to be Evans one; the last one sold i think.
From my hazy drunken memory it was rebuilt in the mid 80s; around tthe same time Bakers got there 2 D10s.
Bloke called Brian McWha [i think,surname is correct anyway] did alot of the rebuild.
Merv

Click to expand...

D6 Merv,

The cast in order of appearance:
1st unit to Feast & McJorrow
2nd unit to L.D.Collis
3rd unit to L.D.Collis
4th unit to Ministry of Works
5th unit to Ministry of Works
6th unit to W.G.Evans (Benmore)
7th unit to Evans Road Construction
8th unit to Horowhenua Earthworks

All from official Clyde Eng delivery records

The WabcoMan

Brainzie, the Terex's that Mike Johnson had were 82-40's, not TC 12/ 82-80's. I used to live up north and saw one of them on a job I did at Herekino on the Hokianga.

Scrub Puller, the machines were gravity rollers, used for crushing scrub on steep country(some of it bloody steep), in preparation for planting radiata pine forests.
In this case the 82-40 had a made up double drum winches on the rear, driven from the PTO on the dozer, one drum each side lined up with the tracks. The rope went along above the tracks to swivelling pulleys mounted on the top of the blade. The roller was an old steam boiler specially strengthened inside, or it could be a purpose built large drum. Not sure of the dimensions, I guess maybe 20 ft wide and 8-10 ft high. It had steel welded on edge to act as cutters, usually in a chevron pattern. It had a frame on it for a drawbar and the 2 ropes were fixed one on each side. I think it had air controls to the brakes on each winch. D6 Merv may know more about the details.
The dozer would start at the top of a ridge and push the roller over the edge of a steep slope. The pulleys on top of the blade enabled the roller to be at 90 degrees to the dozer. The roller would race down the slope smashing everything in its path till it reached the bottom. It would be winched back up, the dozer would move a bit further down the ridge and let it go again. The brakes enabled the roller to be steered. I can tell you it was pretty spectacular to watch.
The cab and controls were moved to the front of the machine to give better visibility for the operator.
I had a mate who built up a smaller unit on an 82-20. He used the front axle from a Terex S11 scraper. Fitted the winch drums where the wheels were, still had the scraper brakes and mounted to rear of dozer driven from PTO.
Terex's were used because the trensmission could be used to give a 3 speed winch. I think the steering clutches were disengaged while winching.
Cats could not be used. Once again D6 Merv can probably explain.
They also used D7F's with Hyster logging winches with the roller at the rear, but these were not as good as the single rope could not steer the roller.
I hope you can understand what I have written. If you have any questions I will try and answer them for you.

Yair . . . Thanks Kiwi Craig. Pretty good description, I think I've got my head around it. I take it they put a red steer through the scrub after it was crushed?

What sort of areas are we talking and I assume the area was chopper seeded or was it hand planted to seedlings like over here?

Interesting stuff and thanks. I suppose like most of us in those days the blokes were too busy doing the job rather than taking photo's . . . they would have of considerable interest now.

Cheers.

Were the TC12s that came Into New Zealand TC12-2s as I have understood them to be, or were they another model variant?

Thanks Kiwi Craig, I never sore them just from what I had heard,

I Googled " NZ Gravity Rollers" and came up with this....
http://www.nzjf.org/free_issues/NZJF26_1_1981/5A680FBC-F8DE-4D02-8D02-0E20B10F6238.pdf

Yair . . . Thanks Kiwi Craig. Fascinating stuff. A bloody marvelous resource this internet thingy hey?

Scrub Puller, The area being crushed could be hundreds of hectares or maybe less than one hundred. Bigger units usually did the big blocks of land due to the cost of transporting the machine and roller.
The young trees are all hand planted at 1000 per hectare then thinned to 350 by year 10. Harvested at between 26 -30 years old, depends where they are grown in the country, up north they grow quicker due to warmer weather.
Young trees are all cuttings, not seedlings. Lots of research over the years has gone into improving the genetics of the young trees.

Yair . . . Gotcha Kiwi Craig. I was involved with large scale clearing for (I think) for hand planted Carribean Pine plantations in the 'seventies and I'm amazed at how the stuff has gone feral from wind blown seed.

Cheers.

Johnsons converted 82-40 at Whangarei, 1979

Yair . . . thanks WabcoMan. They sure did a professional looking conversion . . . you wouldn't know if you didn't know.

Cheers.

Gravity rolling was in its heydays in the 1980s in nz. Both mike johnson [82-40] and lex norton [HD16DP] did roller crushing in my end of the world with their double drum roller setups. Have seen the rollers hit a 2ft standing pine and actually climb up the tree about 6 ft before smashing through the trunk. Absolutely awesome to watch.
Kiwi Craig is correct in that only machines i ever saw set up like this were Terexs . Apart from lex norton who was a AC man and custom made his HD16. Never heard of any caterpillars set up like this. But were alot of people using D7Fs and D6Cs using rollers off there logging winchs. Bob Schmansky from whangarei did alot of this work. The bush block was a super heavy duty copy of the sheaves set up on a cat PCU and meant you didn,t have to sit sideways on a razorback ridge and made life alot easier and safer for the man in the seat.

But alot of people just straight spooled the rope to the roller; just like winding in rope when logging.
cheers merv

G'Day Fella's, in 1992 or 3 we destocked a place called "Welclose Downs" between Charlaville and Adavle in Qld, it was about 30 ks into the cattle yards with a real good Jumpup about halfway that we had to stiff bar over on the way out loaded. At the top of the Jumpup there were 2 of the ugliest Dozers id ever seen they were white with 2 GM'S in each. They still had the Scrub Chain hooked between them and parked beside the old chains and grousers that they had changed. When i asked the manager he said they were delivered there in the sixties on 2 BModel Macks and they pulled 60k acres with them and then just parked them on top of the Jumpup. I think CSR owned Welclose Downs when we were destocking it, i know they owned Portland Downs at Isiford and we done it at the sametime, Clayton Scarce of Clayton Scarce Rural in Blackall was the agent at the time, maybe they are still sitting there.

WabcoMan said:

Johnsons converted 82-40 at Whangarei, 1979View attachment 94403

Click to expand...

That is a clean looking conversion. It looks like it worked great for the task it was built for, but I imagine the mechanic hated doing any work on the engine.

Yair . . . Interesting Hardcountry. Yer a bit rough with the "ugly" don'tcha reckon? LOL . Makes me think though they could be the same ones I saw at Morven and mentioned up thread. Ugly was the impression I got of them, mainly the canopies. I thought they could have ended up abandoned . . . There's a couple of Allis 41's parked I think on "Charleton" between St George and Bollon.

Cheers

D6 Merv, The reason they only used Terex dozers on the rollers was something to do with the difference in the transmissions. Alan Grimes who built up the roller on the 82-20 explained it to me, but I cant recall how the story went. The Allison transmission had some feature that the Cat didnt.
Sometimes used to be roading on the same job as Lars on Schmansky's D7F. Some of that country they crushed was really steep, hanging the rear of the D7 right on the edge, the front rearing up when he started winching the roller up again.