VALVE STROKE ADJUSTMENT
Motor Replacement
The valve stroke is set at the factory and no field adjustments
are necessary. The position of the seats can be adjusted by
starting from the normally open position (when the orifice in the
plate and disc are perfectly aligned). For direct acting service,
adjust the motor rotation to the full CCW position (as viewed
from the power end). For reverse acting service, adjust the motor
rotation to the CW position. If the seats are not properly full open,
loosen the nut that locks the actuator stem to the rod bearing
and loosen the stem connector assembly just enough to rotate
the actuator stem. Carefully thread the actuator stem in or out of
thee rod end bearing until the seats are full open and in perfect
alignment. If further adjustments are necessary, consult factory.
1.
Follow procedures under the Maintenance Section to
remove the valve from line.
2.
Remove socket head screw and lockwasher.
3.
Important - Note the position of the cam on the motor
shaft.
4.
Do Not attempt to remove the socket set screws.
5.
Remove the four motor mounting bolts, lockwashers, and
nuts,
6.
Slide motor back off of the mounting plate.
7.
Install new motor on mounting plate.
8.
Important - Make sure cam is in the same lobe position
as described in step 2.
9.
Replace and tighten mounting bolts, lockwashers, and
nuts.
10. Replace and tighten socket head screw and lockwasher
on motor shaft.
11. Check valve stroke as described in STROKE
ADJUSTMENT.
Motor Maintenance
The drive motor and gear train are immersed in oil and sealed in
a die cast enclosure and thus, periodic maintenance is not
required. Field repairs must not be made. Replacement
actuators may be obtained through the nearest Jordan Valve
representative. When ordering a replacement actuator, please
provide the serial number of the valve as shown on the valve
name plate.
7.
Clean the packing bore in the body with solvent and blow
dry.
8.
The disc-pin may be removed through the body bore.
9.
Clean the stem and disc-pin with solvent if they are to be
reused.
10. Reassemble the disc-pin, stem and locknut in the valve
body as they originally were.
11. Replace the packing spring and packing retainer in the
packing bore.
12. Reassemble the new packing on the stem with the open
part of the “V” downward (^). There will be a flat on the top
and bottom of the stack. Place the packing follower on top
of the packing.
13. Gently push the packing into the packing bore and place
the packing flange on the stem and over the packing studs.
14. Put on the flange nuts and tighten them partially. At this
point it is recommended that you gently move the stem up
and down three or four times to align the assembly.
15. Tighten the flange nuts until the packing follower bottoms
out on the top of the body.
16. Replace actuator in reverse order. Reassemble the valve
by inserting seats as outlined in Valve Assembly Section
for the size valve you are working with.. Then follow
instructions for STROKE ADJUSTMENT.
Torque Values
TORQUE FOR BOLTS (3) CONNECTING
VALVE CAP TO VALVE BODY (in. - lbs.)
e
z
i
S
e
v
l
a
V
l
a
i
r
e
t
a
M
y
d
o
B
e
v
l
a
V
e
li
t
c
u
D
,
n
o
r
I
t
s
a
C
e
z
n
o
r
B
,
n
o
r
I
l
e
e
t
S
t
s
a
C
l
e
e
t
S
s
s
e
l
n
i
a
t
S
"
2
&
"
2
/
1
-
1
0
4
1
0
5
1
6 bolts
(or multiples)
8 bolts
(or multiples)
BOLT PATTERN/TORQUING SEQUENCE
