![Flowserve FlowAct 1502 Скачать руководство пользователя страница 42](http://html1.mh-extra.com/html/flowserve/flowact-1502/flowact-1502_user-instructions_2308443042.webp)
FlowAct Diaphragm Linear Actuator FCD VLENIMFACTA4 10/16
42
Actuator without attachments
Spring-to-open
Disassembly instruction of the actuator subas-
sembly
NOTICE
Limit disassembly only to necessary compo-
nents.
1. Fix the actuator on the assembly table, if this is not
already happened.
2. Disassemble the coupling parts and yoke (see page
54).
3. Disassemble the hexagon bolts (335), plain washers
(337) and hexagon nuts (351).
4. Pull off the protection sleeve (339).
WARNING
Risk of injury by jump-
ing out parts ! Pre-loaded
springs inside.
5. Lubricate the threads and loosen the long hexagon bolts
(336), plain washers (337) and hexagon nuts (351) uni-
formly in a clockwise sequence as the springs expand.
NOTICE
We recommend using threaded bolts
meeting standards from ISO 898-1,
8.8 or higher, as well as washers and nuts.
6. Lift off the diaphragm casing (203, 258).
7. Carefully remove the diaphragm-stem unit (211 - 374).
8. Remove the actuator springs (229).
9. Remove the spring adjusting plate (326) and distance
plate (231).
10. Remove the scraper ring (273) and O-ring (275).
11. Secure the diaphragm-stem unit into the Special Tool.
12. Loosen the special nut (348) counterclockwise and re-
move the lock washer (349), thrust washer (255), O-ring
(272), diaphragm (225), diaphragm plate (227), disk
(220), spacer bushing (228) and distance bushing (231).
13. Check stressed surface areas for damage such as
scoring and deformities. Use a brass brush or similar
tool to clean bolting. Check for corrosion or any other
damage.
Reassembly instruction of the actuator subas-
sembly
NOTICE
Always replace parts showing wear with
new parts.
14. Lubricate the new O-ring (275), new scraper ring (273)
with an appropriate lubricant and install into the guide
bushing (253).
15. Lubricate the new O-ring (272) with an appropriate
lubricant.
16. Lower the distance bushing (374), spacer bushing
(228), disk (220), diaphragm plate (227),
diaphragm (225), O-ring (272), thrust
washer (255), lock washer (349)
onto the stem (211).
17. Lubricate the thread of the stem (211) with an appro-
priate lubricant and install and finger tighten the spe-
cial nut (348).
18. Turn the special nut (348) clockwise using a suitable
torque wrench.
19. Loosen and remove the diaphragm-stem unit (211-
349) from the Special Tool. Lubricate the actuator
stem with an appropriate lubricant.
20. Install and position the distance plate (231), spring ad-
justing plate (326) allowing the air connections to be
opposite of each other.
21. Install and align the actuator springs (229).
22. Carefully lower the diaphragm-stem unit (211- 349)
into the diaphragm casing.
23. Install the diaphragm casing (203), positioning the
casing such that the air connections are aligned.
24. Lubricate the threats of the long hexagon bolts (336)
with an appropriate lubricant then compress the
springs uniformly in a clockwise sequence by tighten-
ing the long hexagon bolts (336), plain washers (337)
and hexagon nuts (351). Alternative method
see NO-
TICE
step 5.
25. Install the short hexagon bolts (335), hexagon nuts
(351).