Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
12
Figure 5. Fisher 1066SR Assembly Detail
PISTON
(KEY 3)
PISTON
ROD
(KEY 5)
O-RING
(KEY 17)
CYLINDER
(KEY 8)
W4099-1
LOADING PRESSURE
CONNECTION
SEE SPECIAL
WARNING
LOCK NUT
(KEY 13)
SET SCREW
(KEY 12)
ACTUATOR
TRAVEL
STOPS
LEVER &
BEARING
ASSEMBLY
HUB&
BEARING
ASSEMBLY
O-RING
(KEY 18)
BEARING
(KEY 4)
HOUSING
(KEY 1)
SPRING
(KEY 7)
CYLINDER
COVER
(KEY 2)
W4102-1
MOUNTING YOKE (KEY 25)
ACTUATOR
MOUNTING
SCREWS
Note
Before installing the cylinder cover (key 2) on 1066SR size 27 and 75 actuators, adjust the travel stop set screws (key 12) for
60-degree rotation using the procedure in the Adjustment section. This adjustment will allow easier installation of the cylinder
cover.
10. Install the cylinder (key 8) and the cylinder cover (key 2), for:
D
1066 Size 75, secure them to the actuator housing with cap screws (key 16) as shown in figure 4.
D
1066SR, secure them to the actuator with the flat washers and hex nuts (key 30 and 31) as shown in figure 5.
11. Tighten the cap screws or hex nuts to 41 N
S
m (30 lbf
S
ft) for size 20 actuators and 102 N
S
m (75 lbf
S
ft) for size 27
and 75 actuators.
12. If the travel indicator scale (key 21) is removed, replace it along with the cap screws (key 20). Tighten the cap
screws to 25 N
S
m (18 lbf
S
ft) for size 20 and 27 actuators and to 102 N
S
m (75 lbf
S
ft) for size 75 actuators.
13. Install the spacer (key 26). Note the valve disc or ball position and direction of rotation. Position the travel
indicator (key 22) accordingly and fasten it with the machine screws (key 24).
14. Perform the Adjustment procedure before placing the actuator into operation.
