Burkert Type 2702 - Manual (Page 27)

2702 - 27
M
aintenance and
S
ervicing of the valve
english
→ Knock out the dowel pin with a suitable driver.
Driver diameter:
up to DN 32 ∅ 4 mm
from DN 40 ∅ 5 mm
→ Pull off the plug with aid of two metal strips of equal height that are clam-
ped to the left and right of the spindle between the plug and the threaded
nipple of the actuator. To pull off the plug, apply compressed air (approx. 6
bar) to the lower pilot air port of the actuator.
→ Push the new plug over the end of the spindle.
→ Align the bores.
Dowel pin Plug
→ Support the plug at its cylindrical part with the aid of a V-block or the like.
→ Carefully knock the dowel pin into the bore with a hammer.
→ Bring the dowel pin into a central position relative to the spindle axis (knock in as far as the end of the
recess).
→ Before reinstalling the actuator, grease the nipple thread with stainless steel lubricant, e.g.Klüberpaste
UH1 96-402 from company Klüber and replace the graphite seal.*
→ After tightening the threaded nipple, orient the control connection by turning the actuator.*
mounting.the.actuator
attention!
Do not damage the sealing surface or the control contour!
attention!
* The valve must be for this in the opened position.
Replacement.of.the.plug