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Burkert Type 8690 User Manual

Page 13

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13

Installation

O-ring
Spindle extension

Guide element

Actuator cover

Groove ring

Switch cam

Switch spindle

10

max. 5 Nm

max. 1 Nm

Fig. 6: Installation of switch spindle (2), 21xx series

noTe!

improper installation may damage the groove ring in the
guide element.
The groove ring is already be pre-assembled in the guide element
and must be “locked into position” in the undercut.

▶ When installing the switch spindle, do not damage the groove ring.

Push the switch spindle through the guide element.

noTe!

screw locking paint may contaminate the groove ring.

▶ Do not apply any screw locking paint to the switch spindle.

To secure the switch spindle, apply some screw locking paint
(Loctite 290) in the tapped bore of the spindle extension in the
actuator.

Check that the O-ring is correctly positioned.

Screw the central screw to the actuator cover (maximum torque:
5 Nm).

Screw switch spindle onto the spindle extension. To do this,
there is a slot on the upper side (maximum torque: 1 Nm).

Position the switch cam on the switch spindle so that the distance
between the switch cam and top of the spindle is 10 mm (see
“Fig. 6”)

english

Type 8690