Ansaldo TCA70

I have obtained this double drum cable unit. It needs a bit of work, clutches pulled apart and missing one brake band. I think it is a Heil. The pulley unit on top is a Bristand and has had one top pulley flame cut off.

It looks as if the pto on the Ansaldo drives from the final drive and not the gear box, therefore will only operate while the tractor is moving forward,certainly not ideal for lifting a blade or scraper.

Paul

Paul ,Most of the Crawlers of the Day worked exactly the same,No live drive to the Rear PCU ..You just got to live with it .Our D68u is the same Clutch must be engaged to power the PCU .

yep all PCU'S on the back aren't live drive (but I could be wrong) thats why some had the PCU on the front straight off the crank you do get used to not been live drive but it takes some time
Paul

I haven't had much experience with the pcu setup but I thought on the Oliver and the AC HD5 that the pcu would operate while the gearbox was in neutral if the clutch was engaged. As the ansaldo has a 5 speed box with a tail shaft to the final drive and the pto driven from the final drive I am guessing that the pcu will only operate in the correct direction when the tractor is moving forwards. I thought that on the allis chalmers you could lift the blade while the tractor was stationary.

Paul

I have the same pcu on my HD5B

Hi Paul ,Just check that the PTO lever does not have two positions . There may be a ground speed drive one that it is in now .Just a thought .

good thought ianoz been the Italian stallion it might have my little Fiat has

good thought ianoz been the Italian stallion it might have my little Fiat has

Just trying to think Why ???
I was thinking ,a logging winch would be pretty useless on the back ,if the machine has to be moving to work the winch .

The pto control only has engaged and disengaged positions. I've had a bit a look at the machine, and the partially disassembled spare parts machine and there is no auxiliary drive from the gear box to the rear. The engine and gearbox unit is rubber mounted on a sub frame inside the hull unit, with a universal jointed drive shaft from the 5 speed box to the final drive unit which has the pto drive included, as shown here.

I agree, it will be pretty useless if you have to be moving forward to operate winch. I did see an old advertisement that said the TCA70 had a 5 speed pto, now I know why.

Paul

I found this photo on the net, an ansaldo doing pto work. I guess you apply the brakes, lock them with the parking pawl, as applying the brakes releases the turning clutches as first part of the action, engage a forward gear and engage the foot (engine) clutch.

Paul