This instruction manual presents principle of operation,
installation, maintenance, and parts list for the Type
1008 handwheel actuator (figure 1). Refer to separate
instruction manuals for information about other equipment and accessories used with these actuators.
Only personnel qualified through training or experience
should install, operate, and maintain a Type 1008 actuator. If you have any questions about these instructions, contact your Fisher Controls sales office or
sales representative before proceeding.
Description
The Type 1008 is a handwheel actuator for processes
requiring a throttling valve that can be manually oper-
W0590-1/IL
Figure 1. Type 1008 Handwheel Actuator
ated and set. The Type 1008 handwheel actuator is
available in sizes 30, 40, 50, 80, and 100, and can be
mounted on Fisher Controls easy-evalves.
The Type 1008 handwheel actuator converts rotary
motion of the handwheel to linear motion of the valve
plug stem. Because the stem does not revolve, the
valve plug contacts the same seating surface with
each stroke. Sizes 40, 50, 80, and 100 include two
thrust bearings to make rotation easier.
Turn the handwheel counterclockwise to open the
valve regardless of valve plug action. All sizes of the
Type 1008 handwheel actuator except size 100 are
reversible following the Reversing Handwheel procedures.
1. For S31600 (316 stainless steel) stems at 100_F (38_C).
2. Actuator limit.
DIAMETER
InchesmmInchesmmPoundsNInchesmmPoundskg
51271-1/43217,000
717825156,000
STEM DIAMETERMAXIMUM STEM LOADMAXIMUM TRAVEL
12511,250
1-1/43217,000
(1)
(1)
(1)
(1,2)
(1,2)
(1,2)
73403/419156.8
13,1222513515.9
29,58141024520.4
(1)
50,042
75,620
75,620
251,004
37610045.4
410215068.0
APPROXIMATE
WEIGHT
Specifications
Refer to table 1 for Specifications of the Type 1008
handwheel actuator. Refer to the actuator nameplate
for information about a specific actuator.
Installation
The Type 1008 handwheel actuator can be installed
horizontally, vertically, or at any orientation in between. However, if supplied with a Tejax position indicator (see figure 6), the actuator must be installed in a
horizontal position.
When an actuator and valve body are shipped together as a control valve assembly, the actuator is normally mounted on the valve. Follow the valve body
instructions when installing the control valve in the
pipeline. If the actuator is shipped separately or if it is
necessary to mount the actuator on the valve, perform
the Actuator Mounting procedures.
Actuator Mounting
Key numbers refer to figure 2 for size 30, figure 3 for
sizes 40 and 50, figure 4 for size 80 or figure 5 for size
100.
1. Place the actuator on the body bonnet and tighten
the yoke locknut or the actuator mounting hex nuts.
2. Ensure the valve plug is on its seat.
3. Adjust the travel indicator scale (key 27) so that the
two screws (key 19) are centered in the slots.
5. Temporarily connect the valve plug stem to the
stem connector assembly (key 24) and tighten the cap
screws into the stem connector.
6. Use the handwheel (key 28) to move the valve plug
into the fully open position, as indicated by the travel
indicator disk (key 20) on the travel indicator scale
(key 27).
7. Remove the stem connector assembly (key 24).
8. Size 30: Turn the handwheel (key 28) counterclockwise until the stem connector assembly (key 24)
almost touches the top of the yoke;
Sizes 40, 50, and 80: Turn the handwheel (key 28)
counterclockwise as far as it will go;
Size 100: Turn the handwheel (key 28) counterclockwise (for push-down-to-close valves) or clockwise (for
push-down-to-open valves) as far as it will go.
CAUTION
Incomplete engagement of both valve
stem and stem screw assembly (key 38)
or size 100 power screw (key 5) in the
stem connector can result in stripped
threads or improper operation. Be sure
that the length of each stem clamped in
the stem connector is equal to or greater than the diameter of that stem.
9. Connect the valve plug stem to the stem connector
assembly (key 24). Ensure that the bottom of the stem
connector is touching or nearly touching the travel indicator disk (key 20). Tighten the stem connector (key
24) cap screws and lock the hex nuts (key 29) against
the travel indicator disk (key 20) and stem connector.
4. Screw the hex nuts (key 29) onto the valve plug
stem and place the travel indicator disk (key 20) onto
the stem above the hex nuts. Adjust the nuts until the
travel indicator disk (key 20) points to the closed position on the scale.
2
10. Rotate the handwheel until the valve plug seats.
Adjust the travel indicator scale (key 27) with two
screws (key 19) so that the travel indicator disk (key
20) points to the closed position on the scale. Tighten
the two screws.
Page 3
Type 1008
Position Indicator Mounting
The Tejax position indicator is available on sizes 30,
40, and 50 Type 1008 handwheel actuators. It must be
mounted in a horizontal position to function correctly.
To set the position indicator:
1. Seat the valve plug.
2. Loosen the four screws holding the dial indicating
unit in place.
3. Turn the dial until both hands are at the ‘‘Shut’’
(Zero) position.
4. Tighten the four screws.
The long pointer indicates fractions of a turn; the small
pointer counts the number of full turns. The position
indicator requires no lubrication.
Maintenance
Actuator parts are subject to normal wear and must be
inspected and replaced when necessary. The frequency of inspection and replacement depends on the severity of service conditions. Because of the care
Fisher Controls takes in meeting all manufacturing requirements (such as heat treating and dimensional
tolerances), use only replacement parts manufactured
or furnished by Fisher Controls.
Lubrication
The interior parts of a Type 1008 handwheel actuator
should be lubricated on a regular schedule with a quality gear lubricant. The interior parts should also be lubricated whenever handwheel rotation becomes difficult.
Disassembly
Parts are subject to normal wear and must be inspected periodically. The following procedure describes actuator disassembly for general inspection
and replacement.
For Size 30:
1. Remove the stem connector assembly (key 24).
2. Unscrew the set screw (key 13) from the yoke (key
26) and remove the steel balls (key 33) through the
threaded hole.
Note
Be careful not to lose the ball (key 33)
and spring (key 34) as the handwheel is
removed.
3. Remove the handwheel (key 28) and stem screw
assembly (key 38) from the yoke (key 26).
4. Unscrew the handwheel (key 28) from the stem
screw assembly (key 38).
For Sizes 40 & 50:
1. Remove the stem connector assembly (key 24).
2. Unscrew the hex nut (key 14) and remove the
washer (key 41) and lockwasher (key 42).
WARNING
Avoid personal injury or damage to
property from sudden release of pressure or uncontrolled process fluid. Before performing any maintenance operations:
D Isolate the valve from the process,
and relieve process pressure from both
sides of the valve.
D Use lock-out procedures to be sure
the above measures stay in effect while
you work on the equipment.
Key numbers refer to figure 2 for size 30, figure 3 for
sizes 40 and 50, figure 4 for size 80 or figure 5 for size
100.
Note
Be careful not to lose the ball (key 33)
and spring (key 34) as the handwheel is
removed.
3. Remove the handwheel (key 28) from the stem
screw assembly (key 38).
4. Loosen the set screw (key 13) and unscrew the
bearing retainer (key 44).
5. Remove the stem screw assembly (key 38), thrust
bearings (key 2), and nut (key 43) from the yoke (key
26).
6. Remove the nut from the stem screw assembly
(key 38) to reach the remainder of the parts.
For Size 80:
1. Remove the stem connector assembly (key 24).
3
Page 4
Type 1008
2. Unscrew the cap screws (key 12) and remove the
gear case cover (key 11).
3. Unscrew the two socket head cap screws (key 37)
and remove the retaining flange (key 35).
4. Remove the bearing and gear retainer (key 4) and
the stem screw assembly (key 38).
5. Remove the thrust bearings (key 2) and worm gear
(key 3) from the stem screw assembly (key 38).
Note
Be careful not to lose the ball (key 33)
and spring (key 34) as the handwheel is
removed.
6. To remove the worm shaft (key 9):
a. Remove the set screw from the handwheel cap
(key 32).
b. Unscrew the handwheel cap and remove the
handwheel (key 28).
c. Loosen the front (nearest to the threaded end of
the worm shaft) set screw (key 10) and unscrew
the front worm retainer (key 7).
d. Remove the ball bearing (key 8) and the worm
shaft.
For Size 100:
1. Remove the stem connector assembly (key 24).
2. Unscrew the cap screws (key 12) and remove the
gear case cover (key 11).
3. Remove the bearing and gear retainer (key 4) and
the stem screw assembly (key 38).
4. Remove the thrust bearings (key 2) and worm gear
(key 3) from the stem screw assembly (key 38).
5. To remove the worm shaft (key 9):
Assembly
For Size 30:
1. Replace the spring (key 34) and ball (key 33) in the
yoke (key 26).
2. Screw the handwheel (key 28) on the stem screw
assembly (key 38).
3. Position the grooves in the handwheel (key 28) and
yoke (key 26) to mate, then replace the steel balls
(key 33) in the yoke through the threaded hole.
4. Replace the set screw (key 13).
5. Refer to the Installation procedures for instructions
on connecting the valve plug stem to the actuator
stem screw assembly (key 38).
For Sizes 40 & 50:
1. Replace the thrust bearings (key 2) and bearing
seat (key 45) on the stem screw assembly (key 38).
Screw the nut (key 43) on the stem screw assembly.
Note
Verify that the key (key 16) fits into the
slot milled in the yoke (key 26) before
reassembly.
2. Place the stem screw assembly (key 38) in the
yoke (key 26).
3. Replace the bearing retainer (key 44), tightening so
that the thrust bearings (key 2) move freely, then tighten the set screw (key 13).
4. Place the ball (key 33) in one of the indentations on
the yoke, then place the handwheel (key 28) with the
spring (key 34) over the ball.
5. Replace the lock washer (key 42) and washer (key
41) on the stem screw assembly (key 38) and tighten
the hex nut (key 14).
6. Refer to the Installation procedures for instructions
on connecting the valve plug stem to the actuator
stem screw assembly (key 38).
For Size 80:
a. Remove the retaining ring (key 17).
b. Loosen the set screw (key 10) found on the
handwheel (key 28) hub.
c. Remove the handwheel (key 28).
d. Loosen the set screw (key 10) and remove the
front (nearest to the threaded end of the worm
shaft) worm retainer (key 7), worm shaft (key 9),
and front ball bearing (key 8).
4
1. If the worm shaft (key 9) was removed during disassembly:
a. Replace the worm shaft with the ball bearing
(key 8) and the front worm retainer (key 7).
b. Adjust the worm retainer to eliminate end play
(movement of the worm shaft along its axis) while
allowing adequate movement.
c. Tighten the set screw (key 10) on the front retainer.
Page 5
Type 1008
2. Replace the ball (key 33), handwheel (key 28), and
handwheel cap (key 32), then tighten the set screw in
the handwheel cap.
3. Replace one of the thrust bearings (key 2) in the
gear case (key 1) making sure that the bearing race
with the smaller inside diameter is adjacent to the
worm gear web.
4. Screw the worm gear (key 3) on the stem screw
assembly (key 38) and place them in the gear case
(key 1).
5. Install the other thrust bearing (key 2) on the worm
gear (key 3), making sure that the bearing race with
the smaller inside diameter is adjacent to the worm
gear web.
6. Replace the bearing and gear retainer (key 4).
7. Install the retaining flange (key 35) making sure
that the key (key 36) fits in the slot on the retaining
flange.
8. Adjust the six set screws (key 13) to eliminate end
play (movement along the axis of the stem screw assembly) in the thrust bearings, while allowing adequate
movement.
9. Replace the gear case cover (key 11) and cap
screws (key 12).
10. Replace the stem connector assembly (key 24).
11. Refer to the Installation procedures for instruc-
tions on connecting the valve plug stem to the actuator
stem screw assembly (key 38).
For Size 100:
5. Install the other thrust bearing (key 2) on the worm
gear (key 3), making sure that the bearing race with
the smaller inside diameter is adjacent to the worm
gear web.
6. Replace the bearing and gear retainer (key 4).
7. Replace the gear case cover (key 11) and fasten
with the cap screws (key 12).
8. Adjust the six set screws (key 13) to eliminate end
play (movement along the axis of the stem screw assembly) in the thrust bearings, while allowing adequate
movement.
9. Replace the stem connector assembly (key 24).
10. Refer to the Installation procedures for instructions on connecting the valve plug stem to the actuator
stem screw assembly (key 38).
Reversing Handwheels
Refer to the previous Disassembly and Assembly sec-
tions in this manual for additional instructions, as
needed.
To reverse Type 1008 handwheel actuators sizes 30,
40, or 50, substitute left– or right–hand screw assemblies (key 38) . The standard size 100 is not reversible. To reverse size 80, refer to figure 4 while performing the following procedures:
1. Loosen the three set screws (key 10) in the gear
case (key 1) and handwheel cap (key 32).
1. If the worm shaft (key 9) was removed during dis-
assembly:
a. Replace the worm shaft with the ball bearing
(key 8) and the front worm retainer (key 7).
b. Adjust the worm retainer to eliminate end play
(movement of the worm shaft along its axis) while
allowing adequate movement.
c. Tighten the set screw (key 10) on the front retainer.
2. Replace the key (key 16), handwheel (key 28), and
retaining ring (key 17), then tighten the set screw in
the hub of the handwheel.
3. Replace one of the thrust bearings (key 2) in the
gear case (key 1) making sure that the bearing race
with the smaller inside diameter is adjacent to the
worm gear web.
4. Screw the worm gear (key 3) on the stem screw
assembly (key 38) and place them in the gear case
(key 1).
Note
Be careful not to lose the ball (key 33)
and spring (key 34) as the handwheel is
removed.
2. Unscrew the handwheel cap (key 32) and remove
the handwheel (key 28).
3. Remove the front worm retainer (key 7), ball bearing (key 8), and worm shaft (key 9).
4. Remove the back worm retainer (key 6) and ball
bearing (key 8).
5. Screw the back worm retainer (key 6) and ball
bearing (key 8) into the opening in the gear case (key
1) where the front worm retainer is located.
6. Replace the front worm retainer (key 7) and ball
bearing (key 8).
7. Replace the spring (key 34) and ball (key 33),
handwheel (key 28), and handwheel cap (key 32).
8. Tighten the three set screws (key 10) in the gear
case (key 1) and handwheel cap (key 32).
5
Page 6
Type 1008
Parts Ordering
Each actuator has a serial number stamped on the
nameplate. Always mention this number when corresponding with your Fisher Controls sales office or
sales representative regarding technical information or
replacement parts. Also, reference the complete
11-character part number of each needed part as
found in the following Parts List.
Parts List
KeyDescriptionPart Number
1 Gear Case
Size 80, cast iron 3H735319042
Size 100, steel30A2638X012
48 Set Screw w/Set Screw Handwheel Lock, (not shown)
(sizes 40 & 50)1A951028992
51Cover, aluminum (size 30)11B5523X012
8
Page 9
Type 1008
30A6911-A/DOC
Figure 4. Type 1008 Handwheel Actuator Size 80
9
Page 10
Type 1008
50A2650-B/DOC
Figure 5. Type 1008 Handwheel Actuator Size 100
10
Page 11
40A6974-A/DOC
Figure 6. Type 1008 Handwheel Actuator Sizes 40 and 50 with Tejax Position Indicator
Type 1008
11
Page 12
Type 1008
easy-e, Fisher, Fisher-Rosemount, and Managing The Process Better are marks owned by Fisher Controls International, Inc. or Fisher-Rosemount Systems, Inc.
All other marks are the property of their respective owners.
EFisher Controls International, Inc. 1990, 1999; All Rights Reserved
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express
or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.
For information, contact Fisher Controls:
Marshalltown, Iowa 50158 USA
Cernay 68700 France
Sao Paulo 05424 Brazil
Singapore 128461
12
Printed in U.S.A.
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