Siemens KG39EAI43 Repair Manual page 16

Design and function
In spite of the high degree of sealing efficiency of Lokring connection, it is not always
possible to compensate for existing damage to the tube ends. To provide additional se-
curity in this case, use is made of Lokprep. Lokprep is an inorganic liquid similar to su-
perglue. However it is not used for its adhesive effect but for its characteristic of
hardening without the need for solvents to evaporate.
Fig. 12: Applying Lokprep
The exclusion of oxygen is the necessary precondition to allow Lokprep to harden.
Enough Lokprep should be applied to the tube ends to allow a thin film to be spread
over the length of the tube which is then inserted into the Lokring connection. Tube
ends should be pushed fully home into the Lokring connection. For improved distribu-
tion of the Lokprep connection should be turned through 360°.
2020-08-03_58300000002379_ara_en_p Copyright by BSH Hausgeräte GmbH Page 16 of 73