It's great to be able to obtain a precious technical information for a real old equipment. The one I got helps me a lot in the area of wiring diagram to repair my antique. PDF gave me clear enough information to find out thr details. Thanks for giving me the oppotunity to be able to access to almost vanished informations.
Before reassembling the battery holder, make sure that the internal wiring is guided as shown in figure 1. After the product has been repaired, it should function properly and has to meet the safety requirements as laid down and offically established at this moment.