Thank you Nige, thank you very much for the quick response. I am trying to purchase a service manual, I posted another question about manuals available on eBay which are said to be in a flash drive form. My serial number is 8RJ04783.
This is the first high drive machine that I've worked on. On the smaller machines I've worked on (D5C and John Deere 650G) the initial few inches of travel on the steering lever initiates a hydraulic valve which releases the selected steering clutch. Pulling the lever further back increasingly applies the brake. On those machines the brake band needed to be adjusted periodically. So sorry to ask again but is there a separate adjustment for the brake band, assuming that it has one? Thanks