Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
11
Figure 4. Fisher 1066 Assembly Detail
LEVER &
BEARING
ASSEMBLY
HUB &
BEARING
ASSEMBLY
MOUNTING
YOKE (KEY 25)
BEARING
(KEY 4)
O-RING
(KEY 18)
HOUSING
(KEY 1)
CYLINDER
COVER
(KEY 2)
W4100-1
ACTUATOR
MOUNTING SCREWS
PISTON
(KEY 3)
PISTON
ROD
(KEY 5)
O-RING
(KEY 17)
CYLINDER
(KEY 8)
W4101-1
TOP LOADING
PRESSURE CONNECTION
BOTTOM LOADING
PRESSURE
CONNECTION
SEE SPECIAL
WARNING
LOCKNUT
(KEY 37)
ACTUATOR
TRAVEL
STOPS
2. Lower the piston rod with attached lever and bearing assembly into the actuator housing.
3. Apply lithium grease lubricant (key 35) to the outer surface of the hub (key 6). Orient the hub (key 6) so that one of
the index holes on the end of the hub is in line with the lever pin (key 9). Then, slide the hub into the housing and
through the lever and bearing assembly.
4. Apply lithium grease lubricant (key 35) to the outer surface of the bearing (key 4). Then, install the bearing and
washer (keys 4 and 43) into the housing as shown in figure 6 or 7.
5. Secure the mounting yoke to the actuator 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.
6. The index mark on the valve shaft must be aligned with one of the four index holes on the end of the actuator hub
(key 6). Consult the appropriate valve instruction manual for lever/shaft index mark (hole) orientations for various
positions. Then, slide the actuator onto the valve shaft.
7. Bolt the mounting yoke to the valve with the mounting bolts provided with the control valve. For 9500 valves, bolt
the mounting yoke to the valve with the cap screws and flat washers (key 36 and 38, not shown) supplied with the
actuator.
8. Apply lithium grease lubricant (key 35) to the wall of the cylinder (key 8), to the cap screw (key 19), and to the
O-ring (key 17) as shown in figure 6 or 7.
9. Install the spring (key 7). Then, attach the piston (key 3) to the piston rod (key 5) with the cap screw (key 19) and
sealing washer (key 11). For size 20 actuators, install a flat washer (key 23) with these parts. Tighten the cap screw
to 81 N
S
m (60 lbf
S
ft) for size 20 actuators, 136 N
S
m (100 lbf
S
ft) for size 27, and 176 N
S
m (130 lbf
S
ft) for size 75
actuators.
