I sell a parts repair manual for the Tokheim 38, on the back pages is instructions on changing the price on the Veeder-Root computer. I also have Service Manuals for the Veeder-Root computer.
Email me.
Jack Sim
Author, Gas Pump Identification book, Air Meter Identification book

Author, 1st & 2nd editions of Gas Pump ID book, 3rd edition is now available at www.gaspumpbible.com
Air Meter ID book also available