Yes it is as it came out of the factory. It is located in a "neutral" position on the belt equally between the two main drive pulleys and at the extreme opposite end to the motor drive pulley. Having just spent the last couple of hours installing and re-inatalling the new belt,(because it keeps jumping off)I am now convinced the cause is the extreme lead on to one of the guide pulleys.

As you know the Greenfield uses an extremely long belt which transitions from the horizontal plane on the vertical engine shaft, to the vertical plane on the horizontal axle shaft. During that transition it passes over two sets of guide pulleys. The front set consists of one V and one flat pulley to cater for the back and front of each run of the belt.

It looks to me like the lead on to the "flat" pulley is too great causing the belt to jump off and eventually roll.

Will try to realign the flat pully to give it a better lead on and report back.

Agree with you Grumpy, once the problem is sorted out the old belt may be reusable as a spare.