English – Burkert Type 2712 User Manual

Page 13

2712 big - 11

AINTENANCE

AND

ERVICING

english

Support the control cone at ists cylindrical part with the aid of a V-block or the like.

Place the dowel pin in postion and carefully knock in with a hammer.

Bring the dowel pin into a central position relative to the spindle axis (knock it in up to the end of the

recess).

Before reinstalling the actuator (in the open valve position), grease the nipple thread with stainless

steel lubricant, e.g. Klüberpaste UH1 96-402 from Messrs. Klüber and replace the graphite seal.

Assembly

After tightening the threaded nipple (SW70) (observe torque), the actuator can be aligned as required.

For this purpose, unscrew the screw (SW65) above the threaded nipple ca. a half-turn and bring the

actuator into the desired position.

Then retighten the screw with a torque of 100 ± 5 Nm an.

ATTENTION!

For special applications such as for oxygen and analysis, use only the approved
lubricants.

ATTENTION!

During this operation, the valve must also be in the open position.