Installation Of The Pneumatic Control Unit Type 8690 On Process Valves Of Series 20Xx - Burkert 8690 Manuel D'utilisation

7.3 installation of the pneumatic
control unit Type 8690 on
process valves of series 20xx
procedure:
1. install switch spindle
Fig. 10: 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. 11").
Type 8690
Installation
Transparent cap
Position indicator
Actuator
10 mm
Fig. 11: 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
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.
11").
journal Ø: 3 mm; journal gap: 23.5 mm
2)
english
Switch cam
Switch spindle
Guide element
O-ring
Plastic part of the
switch spindle
Spindle (actuator)
into the actuator
2)
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