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On process valves of series 20xx – Burkert Type 8690 User Manual

Page 15

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15

Installation

7.3

installation of the pneumatic
control unit Type 8690 on
process valves of series 20xx

procedure:

1. install switch spindle

Transparent cap

Position indicator

Actuator

Fig. 9: Installation of the switch spindle (1), series 20xx

Unscrew the transparent cap on the actuator.

Using a hexagon socket key, unscrew the orange/yellow position
indicator from the inside of the actuator.

Press the O-ring downwards into the cover of the actuator (see
“Fig. 10”).

Guide element

O-ring

Plastic part of the
switch spindle

Switch cam

Switch spindle

10 mm

Spindle (actuator)

Fig. 10: Installation of the switch spindle (2), series 20xx

Manually screw the switch spindle (and the plugged-on guide
element) together with the plastic part onto the spindle of the
actuator, but do not tighten spindle yet.

Tighten the guide element with a face wrench

1)

into the actuator

cover (torque: 8.0 Nm).

Tighten the switch spindle on the spindle of the actuator. To do
this, there is a slot on the upper side (torque: 1.0 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.
10”
).

1)

journal Ø: 3 mm; journal gap: 23.5 mm

english

Type 8690