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14. Place lock washer (key 32) onto the screws (key 33).
15. Screw together the disk retainer assembly into the sleeve
adaptor (key 27).
16. Lubricate the sleeve (key 14).
17. Carefully insert the sleeve assembly into the sleeve guide
(key 61) utilizing eye bolt (key 35). Align sleeve utilizing the
socket hex cap screw (key 74) as a guide.
The key 9 O-rings may need to be removed
and stretched by hand in order for the sleeve
assembly to have sufficient clearance to slide
back into the sleeve guide.
18. Screw captured screws (key 68) to affix the sleeve
system. Place O-ring (key 69) on cap (key 70).
19. Remove eye bolt (key 35) from upper spring seat (key 73)
threaded hole.
20. Carefully place the cap (key 70) on the upper actuator
casing (key 11).
21. Lubricate cap screws (key 77) and attach cap (key 70) to
the upper casing using cap screws (key 77).
rotate the cap (key 70) such that the outer
holes for sensing lines are in line with upper
casing holes for sensing lines. To validate the
alignment and before attaching cap, check
that travel indicator is aligned on the cap and
on the upper actuator casing.
22. Mount O-ring (key 75) on the space between the cap
(key 70) and the upper actuator casing (key 11).
23. Screw the eye bolts (key 35) on the cap (key 70).
24. If present, set the stem (key 139) through the casing hole
and tap it into the groove in the diaphragm plate (key 18).
Slide the travel indicator fitting (key 141) over the stem
and tighten to the cap (key 70).
Intermediate Flange O-ring Maintenance
NPS 1, 2, 3, 6, 8, 12 x 6 / DN 25, 50, 80, 150, 200, 300 x 150
1. Remove nuts (key 26).
2. Carefully lift the upper actuator casing and lower actuator
casing assemblies (keys 11 and 5) off the body (key 1).
3. Remove cap screws (key 6).
4. Lift off intermediate flange (key 25).
5. Remove O-ring (key 7). Inspect the O-ring for damage
or wear and replace if necessary. Lightly lubricate O-ring
before placing in the body (key 1).
6. Place the intermediate flange (key 25) on the body,
make sure to position the stud bolt (key 24) holes on the
outsides of the body (key 1). Secure with cap screws
(key 6).
note
note
7. Carefully lift upper actuator casing and lower actuator
casing assemblies (keys 11 and 5) and position it in the
body (key 1).
8. Screw in stud bolts and nuts (keys 24 and 26).
Actuator Assembly Maintenance
NPS 1 through 3 / DN 25 through 80 (Refer to Figure 4)
1. Make a mark on the upper actuator casing (key 11), lower
actuator casing (key 5), intermediate flange (key 25)
and body (key 1) to indicate proper alignment when
reassembling the product.
2. Remove travel indicator assembly (keys 138, 139, 140,
141, 142B, 143, 144, 145, 160 and 192), if present, by
loosening the travel indicator fitting (key 141) and lifting
out the travel indicator assembly.
3. Loosen out the hex nuts (key 23) and remove the washers
(key 22) and the cap screws (key 21). Remove all the
short bolts first, then evenly remove the two long bolts
(key 39), indicated with (LB) on the head and brackets
(key 35). Make sure to balance the upper actuator casing
while removing the spring tension. Carefully lift the upper
actuator casing (key 11) off the lower actuator casing
(key 5). Remove spring (key 13).
4. Remove the socket head cap screws (key 16). Lift off the
diaphragm (key 20) and the inlet plate (key 18). Remove
O-rings (keys 15 and 17). Inspect the diaphragm and
O-rings for damage and wear and replace if necessary.
5. Inspect the upper actuator casing (key 11), O-ring (key 9),
anti-friction split rings (key 8) and anti-friction ring (key 4)
for damage or wear. If damage, remove the O-ring and
split rings and replace with new parts. Lightly lubricate the
O-ring and split rings. Place the split rings in the body first,
then slide the O-ring between the split rings. Lubricate and
reinstall the anti-friction ring (key 4).
6. Remove hex nuts (key 26) from the stud bolts (key 24).
Lift off the lower actuator casing (key 5). Remove the
hex socket cap screws (key 33) and spring lock washers
(key 32). Lift off the disk holder assembly (key 30) and
disk retainer (key 31).
7. Slide the sleeve (key 14) out of the lower actuator casing
(key 5) and slide the outlet plate (key 19) off the sleeve.
Check the sleeve for scratches, burrs or other damage
and replace if necessary.
8. Inspect the lower actuator casing (key 5), O-rings (keys 9
and 62), anti-friction split rings (key 8) and anti-friction rings
(key 4) for damage or wear. If damaged, remove the O-ring
and split rings and replace with new parts. Lightly lubricate
the O-ring body first, then slide the O-ring (key 9) between
the split rings. Lubricate and mount O-ring (key 62) outside
of the lower actuator casing (key 5).
9. Slide the outlet plate (key 19) onto the sleeve (key 14)
and slide the sleeve into the lower actuator casing (key 5).
Place the disk holder (key 30) and disk retainer (key 31)
on the sleeve adaptor (key 27). Insert the spring lock
washers (key 32) and hex socket cap screws (key 33)
and tighten.
Type EZH Relief
7
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