APV DELTA SW4, Руководство по эксплуатации

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UK
Single Seat and Change-over Valve
DELTA SW4
Operating manual UK - rev. 3
17
10. Service Instructions - Actuator
10 . 1. Maintenance of actuator
1. Remove the air hoses from the actuator.
2. Remove inner hex. screws from the adapter of the control unit.
3. Unscrew the two seal screws with a spanner SW30
while holding up the actuator with a strap wrench.
10.2. Installation of seals and assembly of actuator
1. Install the greased o-rings and v-seals in the seal screws (fig. 10.2 )
See to the correct installing direction of the v-seal.
2. Slide the seal screws over the piston rod at both sides of the
actuator and tighten them.
3. Fasten the adapter for the Control Unit and the yoke on the
actuator.
Attention: Observe position of adapter.
Attention: Consider the required valve design NC or NO
during the installation of the adapter and yoke.
NC
= normally closed / air-to-raise, spring-to-lower
NO = normally open / air-to-lower, spring-to-raise
4. Fasten the air hoses.
10.3. Actuator with valve position indicator
Assemlby of holders (fig. 10.3.)
1. Install the actuator screw on the actuator.
2. Provide the housing with the o-ring.
3. Fasten the housing by means of the 4 hex. screws M8
on the actuator.
4. Release the screws at the proximity switch holder and insert
the corresponding proximity switches. Then fasten the screws.
5. Place the actuator in one limit position.
6. Place the corresponding proximity switch in the corresponding
position. Release the positioning screw and move the holder until
the corresponding signal is indicated. Then continue the movement
by 2 to 3 mm to secure indication.
Fasten the positioning screw.
7. Place the actuator in the other limit position and carry out
positioning of the second proximity switch.
air connection
seal screw
v-seal
v-seal
o-ring
o-ring
actuator
piston rod
screw
positioning screw
proximity switch holder
housing
o-ring
actuator screw
centering washer
hex. screw M8
guide rod
piston rod - actuator
seal screw
fig. 10.2.
fig. 10.3.
DELTA SW4 - UK-3.qxp 23.04.2009
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