1008 Handwheel Actuator
Instruction Manual
December 2009
3
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.
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.
Position Indicator Mounting
The Tejax position indicator is available on 1008
handwheel actuators, sizes 30, 40, and 50. 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.
WARNING
Avoid personal injury from sudden
release of process pressure. Before
performing any maintenance
operations:
D
Do not remove the actuator from
the valve while the valve is still
pressurized.
D
Always wear protective gloves,
clothing, and eyewear when
performing any maintenance
operations to avoid personal injury.
D
Use bypass valves or completely
shut off the process to isolate the
valve from process pressure. Relieve
process pressure on both sides of the
valve. Drain the process media from
both sides of the valve.
D
Use lock-out procedures to be
sure that the above measures stay in
effect while you work on the
equipment.
D
The valve packing box may
contain process fluids that are
pressurized,
even when the valve has
been removed from the pipeline.
Process fluids may spray out under
pressure when removing the packing
hardware or packing rings, or when
loosening the packing box pipe plug.
D
Check with your process or safety
engineer for any additional measures
that must be taken to protect against
process media.
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.
Lubrication
The interior parts of a 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
