APV DELTA SW4, Operating Manual

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UK
Single Seat and Change-over Valve
DELTA SW4
Operating manual UK - rev. 33
19
11.3. Installation of seals and assembly of valve
1. Insert the guide bush into the yoke. Then place the shaft seal,
press in the slightly greased seat seal.
See to the correct installing position.
2. Install the yoke at the actuator.
3. Insert the seat seal in the shaft. Use the APV assembly tool to
install the seat seal, see chapter
12 . Grease the seat seal only
slightly before its installation. In case of manual installation, vent
the seal groove with a thin object between seal and groove wall.
4. Slightly grease the housing seals and install them in the grooves
of the yoke and of the upper housing.
Fasten the upper housing at the yoke by means of the clamp.
Attention: Valve design NC:
Control the valve with air.
5. Slide the protective tube over the thread of the guide rod.
Slide the shaft through the upper housing, yoke and actuator.
Place the centering washer and tighten the safety nut.
Hold up the safety washer during this process.
Tightening torque 40 Nm.
6. Attention: Valve design NC:
Shut off pneumatic air.
7. Install the control unit adapter on the actuator.
Apply a drop of a screw locker (e.g. type: Loctite semi-solid)
in the area of the threaded bore of the actuator screw.
Screw the actuator screw on the guide rod.
11.4. Installation of valve
1. Place the control unit on the adapter and fasten it.
2. Connect the compressed air supply.
3. Valve design NC: Control the actuator with air.
Do not touch movable valve parts!
Risk of injury by sudden valve operation.
4. Place the valve insert carefully into the lower housing and
fasten the lower clamp.
The housing seals must not be damaged during the installation.
5. Valve design NC: Shut off compressed air.
6. Check the basic adjustment of the valve position indicator.
- The shift points can be adjusted by turning the positioning screws.
seat seal
guide rod
shaft
protective tube
seat seal
guide bush
shaft seal
yoke
housing seal
fig. 11.3.1.
11. Service Instructions - Change-over Valve
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DELTA SW4 - UK-3.qxp 23.04.2009
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