Re: Re: Re: How to perserve a TA on IH986?

Posted by Hugh MacKay on May 31, 2003 at 16:04:35 from (209.226.106.164):

In Reply to: Re: Re: How to perserve a TA on IH986? posted by Shawn on May 31, 2003 at 15:04:38:

Shawn: Those older TA that would free wheel on low side should never be allowed to do that. Problem is they get free wheeling and once they get above the normal speed for high range, then to shift is a jolt for the system. If you could imagion driving your automatic car or pickup at 70 mph and suddenly shifting transmission into number 1. It not just TA, any drive train cannot withstand heavy jolts of a gear being engaged when input and output shafts are not somewhere near the same speed.

TA always get a black eye on this, but consider highway tractors, pulling B-trains grossing 140,000 lbs, equiped with a $20,000. 18 speed transmission and a 500 hp Cat or Cummins up front with engine brakes. I'll tell you, you want that engine turning the right speed when you drop that clutch pedal. That is why you hear those guys talking about shifting without the clutch. That is just how precise those guys have to be whether they use the clutch or not.

I never had much TA trouble and I credit that to a number of things, maintainence being number one. My tractors were never in road gears very much. I never used tractors to haul wagons. Quite often if we were moving more than a couple of miles a tractor went onto a low bed. Trucks were built for ashpalt, tractors weren't. I had one move that involved 8 miles each time we did it. The two 100 plus hp tractors were loaded on low bed trailer and 25' disk and cultivator were pulled behind pickups. Took half the time, and it saved tractors. One rule I had with tractors was stay away from that damn ashphalt.

Follow Ups:

• Re: Re: Re: Re: How to perserve a TA on IH986? Shawn 12:42:15 06/01/03 (1)
  • Re: Re: Re: Re: Re: How to perserve a TA on IH986? Hugh MacKay 17:57:04 06/01/03 (0)

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