ECOTEST MKS-UM, Operating Manual, Page: 98 / 119

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3.1.3.8 Replacement of O rings for screws used to fasten the ABG probe’s
protection cover
3.1.3.8.1 If the O rings for screws used to fasten the protection cover are
damaged, replace them with the new ones included in the delivery kit.
Do the following:
- loosen the two captive screws holding the protection cover and remove the
cover (Figure 3.2);
- replace the O rings (1):
Figure 3.8 – O ring for screws used to fasten the ABG probe’s protection cover
- firmly press the protection cover with the grids and gaskets to the ABG probe’s
body (Figure 3.5);
- tighten the two captive screws (Figure 3.6).