Flowserve HV 205 - Manual (Page 24)

24
Maintenance
– continued –
Replacing gaskets of actuating cylinder
To remove the actuating cylinder proceed as follows:
Drawings see pages 6 and 25
1. If connecting lines are still attached to the actuating cylinder you have to detach
these lines first. A small amount of oil might escape. Collect the oil and dispose of
it correctly.
2. Unscrew the four hexagon-head cap screws in the bottom of the actuating
cylinder and remove the actuating cylinder .
3. First take out the sealing plug and the joint ring . Use this opening to carefully
pull the piston , the push rod and the bellows out ot the actuating cylinder .
4. Take out the piston seal .
5. Pull the piston out of the bellows .
6. Remove the retaining ring of the lower part of the bellows and pull out the
bushing . Take out the O-ring and the seal ring .
7. Then remove the O-ring from the actuating cylinder .
To install the actuating cylinder proceed as follows:
Drawing see page 25
1. First insert a new O-ring in the actuating cylinder .
2. Insert the seal ring and the O-ring in the lower part of the bellows . Put the
bushing into the bellows and secure it with the retaining ring .
3. Then place the piston seal onto the piston .
4. Put the piston into the bellows . Apply a light smear of hydraulic oil to the piston
seal . Then put this component into the actuating cyclinder .
5. Screw the sealing plug with the joint ring into the actuating cylinder .
D
32
14
D D
15 16
12 9 10 D
13
12 10
17 10
20 19 21
18 D
D
18 D
21 19 10
20 10 17
13 12
12 10
13 D
15 16 D