Instruction Manual
D100333X012
1069 Actuator
April 2018
6
Table 2. Bolting Torques
KEY NUMBER
BOLTING TORQUE
N
S
m
Foot‐Pounds
3
102
75
8
407
300
16
102
75
18
542
400
20
271
200
25
542
400
43
678
500
11. Note the valve disk or ball position and direction of rotation.
a. If a manual operator is not used, position the travel indicator and hub (keys 28 and 21) according to the valve disk
or ball position just noted. Replace the cover (key 24), and secure it with the washers and cap screws (keys 38
and 25). Do not stroke the actuator past the fully open or closed position while the cover is off.
b. If a manual operator is used, refer to the manual operator section of this instruction manual.
12. When the 1069 actuator is equipped with an auxiliary manual operator, make certain that a bypass valve (key 53)
is installed and used to equalize cylinder pressure during handwheel operation. Operating the manual operator by
itself against the force of differential cylinder pressures will be difficult or even impossible.
CAUTION
Attempting to operate the 1069 actuator when the auxiliary manual operator is engaged could damage the splined valve
shaft. Be certain the manual operator is disengaged before operating the 1069 actuator.
13. Perform the adjustment procedures before proceeding to the loading connection procedure.
Loading Connections
1. If a valve positioner is used with the control valve, the pressure connections to the actuator are normally made at
the factory. Actuators without positioners should have either a four‐way solenoid valve or a switching valve
connected to the 1/4 NPT or 3/4 NPT pressure connections located at the top and bottom of both actuator
cylinders.
2. Connect either 19 mm (3/4‐inch) hose or 9.5 mm (3/8‐inch) tubing between the actuator pressure connections and
a controlling instrument. Keep the length of hose or tubing as short as possible to avoid transmission lag in the
control signal.
3. When the control valve is completely installed and connected to the controlling instrument, check for correct
action (clockwise‐to‐open or clockwise‐to‐close) to match the controlling instrument. For successful operation, the
actuator stems and valve shaft must move freely in response to the loading pressure changes on the pistons.
