[Mondial]

I believe there may be an error on the schematic or the alignment procedure of the 40-180 service info. Looking at the schematic, it appears that the 580 kc adjustment should be trimmer 19A  instead of 19. This would make sense since adjusting 19 has no effect at 580 kc, yet when you measure the cap it does vary from 350 to 900 pF. 

I looked also at the service info for the 40-165 which uses a similar circuit and the corresponding trimmers (26 and 26A) are reversed in the alignment procedure.

Try adjusting 19A at 580 kc and see if it has the proper effect.