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APV_DA4_UK-1_102018.indd
UK
Double Seat Mix Proof Valve
APV DELTA DA4
Instruction Manual: UK - rev. 1
APV
12. Maintenance of Actuator
The item numbers refer to the spare parts drawings
DIN and Inch designs: RN 502.047.01
12.1 Removing the actuator screws
1. Unscrew the two actuator screws (20) with an SW36 socket wrench.
2. Remove the V-seals (24) and O-rings (23).
12.2 Installing the seals and assembling the actuator
1. Install the slightly greased O-rings (23) and V-seals (24) in the
actuator screws (20) (g. 12.2). Check the correct installation
position of the V-seal (24).
Recommendation for actuator:
Pneumatic grease
(25 ml /tube - ref.-No. 000 70-01-008/93; H164725)
2. Place the assembly tool (H338580) on the end of the piston rod.
Screw the actuator screws (20) with a socket wrench SW36 over
the piston rod at both sides of the actuator and fasten them.
actuator screw
fig. 12.1
fig. 12.2
20
20
24
23
Assembly tool
for actuator screw (H338580)
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