9-12 EB 8091 EN
Servicing
6. Apply a suitable lubricant to all the pack-
ing parts.
7. Carefully slide the packing parts over the
plug stem into the packing chamber us-
ing a suitable tool. Observe the proper
sequence (see Fig.9-4).
8. Screw in the threaded bushing (12) and
tighten it. Observe tightening torques.
9. Version without insulating section: place
the sleeve (A27.2) on the plug stem
(2.1).
Version with insulating section: place
the sleeve (A27.2) on the plug stem ex-
tension (22).
10. Thread on the hex nuts (20) and tighten
them. Observe tightening torques.
11. Place the yoke (13) onto the intermediate
piece (4) and secure with slotted nut
(11). Observe tightening torques.
8 Seal (white)
9 Seal (black)
10 Packing washer
12 Threaded bushing
34 Packing
12
9
8
10
8
12
8
10
34
Fig.9-4: Adjustable packing: PTFE-compound and white PTFE seal rings (left) · White PTFE seal rings
(right)
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