Type 1032
10
lines to the power actuator, release all pressure from
the actuator. Use lock-out procedures to be sure that
the above measures stay in effect while you work on
the equipment. Remove the actuator from the valve.
2. Remove one of the end caps as described in the
spring-return actuator Disassembly procedure in the
Maintenance section. Observe the warning in the
spring-return actuator Disassembly procedure.
3. When the flexible stainless steel key has been re-
moved, place a wrench on the top of the pinion, and
rotate the pinion (key 2) to push the end cap (key 4)
partially out of the body (key 1). Remove the end cap
by pulling it straight out from the body.
4. Refer to figure 6 and disconnect the retractor rod
from the retractor spring seat as follows:
a. Place a wrench on the locking nuts located on
the end of the retractor rod. This will keep the re-
tractor rod from turning when performing step b.
b. Loosen the nut adjacent to the end cap in order
to release the spring compression. Turn this nut
away from the end cap to make certain spring com-
pression is released by the retractor rod.
c. Turn the locking nuts on the end of the retractor
rod and unscrew the retractor rod from the retractor
spring seat (key 8).
5. Remove the retractor spring seat (key 8), and then
remove the smaller diameter spring (15 psi spring rat-
ing) (key 7).
6. Install the retractor spring seat (key 8), and thread
the retractor rod into the spring seat until the end of
the retractor rod is flush with back of the spring seat.
Prevent rotation of the retractor rod, and tighten the
nut adjacent the end cap to apply spring compression
until the end cap can be assembled to the actuator
body.
7. Insert the end cap (key 4) into the body bore while
making certain that the retractor spring seat fits into
the recess in the top of the piston (see figure 6).
CAUTION
To avoid damage to the safety key (key
5), do not stretch or kink it.
8. Make certain O-ring (key 26) is installed and lo-
cated next to the nut on the safety key (key 5). Hold
the safety key to prevent kinking it, and insert the end
of the safety key into the actuator and into the groove
of the end cap (key 4). Gently push the safety key
around its groove in the end cap. Turning the end cap
away from the safety key while keeping the end cap
against the body will assist in installing the safety key.
For larger models, use a wrench on the end cap boss
to assist in turning the end cap.
9. Screw the threaded end of the safety key into the
actuator and tighten the nut.
10. When the end cap has been installed on the ac-
tuator, refer to figure 6, and remove the retractor rods
as follows:
a. Place a wrench on the locking nuts located on
the end of the retractor rod. This will keep the re-
tractor rod from turning when performing step b.
b. Loosen the nut adjacent to the end cap in order
to release the spring compression. Turn this nut
away from the end cap to make certain spring com-
pression is released by the retractor rod.
c. Turn the locking nuts on the end of the retractor
rod and unscrew the retractor rod from the retractor
spring seat. Remove the retractor rod from the end
cap.
11. Install the sealing washer (key 22) and the cap
screw (key 21) in the end cap (key 4). Tighten the cap
screw.
Changing Actuator Rotation
The actuator output rotation may be changed from
counterclockwise to clockwise or vice versa.
Double-Acting Actuators
The actuator output rotation is changed from counter-
clockwise to clockwise or vise versa by changing the
port through which supply pressure is applied. Refer to
figures 2 and 3 and to the Principle of Operation sec-
tion for double-acting actuators. Markings are cast into
the actuator adjacent to the pressure connections as
to whether supply pressure forces the pistons together
or apart.
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