7G and 7G-B

As most here already know, I am the somewhat proud, or not, owner of a 7G, one of the last built and supposedly with FA markings when new. It has the typical for the time hand clutch controls and steering brakes but if you do not use the clutches just brakes. All is mechanical/hydraulic.

To make a long story longer and more boring I had chance to look at the steering mechanism on a 7G-B, of course it is predominantly a Fiat product but used the same final and trans as my older unit just has full foot control of the steering. The second tractor I bought for parts had been cobbled together to do similar but they failed to add the third brake pedal to stop the unit without applying clutches. I feel I am about to embark on a conversion to the later style brake control and free my hands on the remaining controls, the decelerator will need to move but can go where I choose, just have to set down and figure out the over-running linkage assortment to make three pedals work as units in common. I am also going to try to improve the single bucket control built two seasons ago.

Have looked to the old illustrated parts guides with those as template.

Edited by DMiller - 16 May 2015 at 9:13pm

The AC engineered machines in production when Fiat took over all got the Fiat Allis decals without any Fiat engineering in them.
When Fiat did apply their engineering to the line, the loyal AC buyers began to drift away to Komatsu and others rather than tolerate the pathetic product from Fiat

The Lanovers were the Buda`s before the AC thousand series engines, and had injectors in the side. The 6,7,10, and 11000 engines gave very good service for their owners, and it would be a tall statement to say 3500`s were a better engine in any respect.

As also stated, the small AC engines gave good service, but the 844 really let them down in the big stuff- scared people away from the 945 loaders, 21 tractors and the big scrapers- from what I've heard, they rarely made it past 5000 hours.  A Cummins engine might have been a good fit.

Tractor line: (from left) 41B, 41, 31, 21C, 21B, two 16Bs, 14, 11B, 10 and 8

I have just purchased a Allisfiat 12GB track loader , i had a heavy equipment mechanic change all fluids and filters. It cranks and runs great , but he said the steering clutches are worn out , it will drive fine but will barely turn one direction . I am trying to find and order a clutch kit for this unit but i am having a hard time finding what i need can some one on here give me a little advice please !!!

Would check brakes first, and adjustment of linkages, as both the steering clutch and brake are on the pedal, correct?  Will each track stop independently when under load?   Worn out clutches would make it want to steer one way or other all the time. 

If anyone has parts for this is Minnpar, Minneapolis. If they do not have the next step would be to disassemble and take the components to a hydraulics shop for seal matchup, will be Teflon or another type hard quad ring seals. There are hydraulic hoses inside the clutch cases on these, from the actuators to a thru fitting then to the controls assembly, these could be bad.

Edited by DMiller - 02 Nov 2017 at 5:42am