Originally Posted by x-ray
Contac HP marketing. They're the distributor in the US and can direct you to the Linhof repair service. I understand Martin who was the repair person at Marflex ( Linhof service ) just died. I seem to remember HP is shipping repairs to Germany at the moment.
What HP will tell you is that Nippon Photo Clinic is the new authorized repair center for Linhof in the US, taking over from the late Martin Arndt (Marflex). Since they're evidently not interested, you might try Bob Watkins. He'll shortly be going to the Linhof factory to be trained in cutting cams, but more generally is an excellent technician with lots of experience with medium and large format cameras.
EDIT: Here's the link for Bob's shop: