Whilst this is a photo copy, and some of the pages are a little askew, it was all readable and intact. A real bonus finding an old manual for a classic piece of kit that no other site had.
The manuel was exactly what I needed and I received it promptly. Thanks
Text excerpt from page 18 (click to view)
With regard to the protection against overheating of surrounding furniture surfaces this appliance corresponds to type Y. This appliance or the built-in cupboard for the appliance respectively may be located with the rear wall and one side wall to whatever high walls or furniture respectively and with the other side to another appliance or furniture of the same height as this appliance.
D Cut out the worktop with the cut--out size as stated. The toleranced sizes must not be exceeded.. Saw exactly at the marking line. Recommendation: Mark the cut--out with a steel needle.Cover-glue the line in order to avoid splintering of the coating when cutting. Clean the worktop in the cut--out section With tiled worktops the grooves within the contact area of the cooking area must completely be filled up with groove material. Then fasten the catch springs with screws in the cut--out at the marked position. The distortion of the springs serves as a stop on the worktop. With natural, artificial stone, or ceramic plates the springs can be glued in with special adhesive (synthetic resin, two--component adhesive, etc.) The cooking area is entered from the top into the cut--out section, centered and firmly pressed on until the springs will catch. Check the seal in the supporting frame for perfect seating and gapless support. Please do not apply further silicone sealing matter as this will complicate the removal of the hob if servicing is necessary.