[farmer41]

Hello. I am looking to upgrade to a 1660 from a 6600 ( four wheel drive ). Just wondering wether to look at a non 4 wheel drive machine. I have been told that the 1660 2 wheel can go through some pretty wet ground. thanks.

 

[robmgrig]

I agree. Also running the 4wd is a lot easier on the hydrostat

 

[farmeruth]

I also agree have ran a hydrostat over 6000 hours on combine with 4 wheel drive verses 2 wheel at 3000 or less never go back to 2 wheel drive. I think it should be standard on all combines.

 

[farmerunderground]

I agree with RWA, definitely. One thing to note is that you need to pay attention to the weight you have back there, and what header you are running. We have ran into problems with trying to operate a JD 1293, and now are working with a 30' 2162 draper head. These are on a 2188, and we'll probably have a full set of sixteen weights on the back, and may need some wheel weights or something on 18.4R26 tires. Trying to stay away from the liquid ballast this time like we had in our 16.9-26 tires that we just took off.

 

[bmlehner]

Why is rwa easier on the hydrostat?

 

[Don Boles]

The reduced pressure required to move the combine due to the
increased volume of the added motors driving the wheels.
On the other hand the pump has to pump more oil because the combine takes the same horsepower to move,
if the pressure is less the volume has to be more.
In the end, it's one of those 6 of one, 1/2 a dozen of the other
deals as far as wear and tear on the hydrostatic is concerned.

Don