Instruction Manual
D100325X012
1061 H & J Actuator
October 2012
12
3. Stroke the actuator until the left-hand threaded upper hex nut (key 71) can be reached through the access opening.
Loosen the hex nut.
4. Perform one of the following:
a. For push-down-to-close action (extending piston rod closes operated equipment)-- Slowly stroke the actuator to
the down travel stop. Consult the appropriate instruction manual for determining the closed position of the
valve or other operated equipment. Adjust the turnbuckle (key 70) until the closed position is reached. Lock this
adjustment with the left-hand threaded hex nut (key 71). Stroke the actuator to the up travel stop, and tighten
the lower hex nut (key 11). Tighten each hex nuttothetorquevaluelistedintable7.
b. For push-down-to-open action (extending piston rod opens operated equipment)-- Stroke the actuator to the up
travel stop. Consult the appropriate instruction manual for determining the closed position of the valve or other
operated equipment. Check the valve position with respect to its properly closed position. Stroke the actuator
until the turnbuckle (key 70) can be reached through the access opening. Adjust the linkage. Stroke the actuator
to the up travel stop again, and check the new adjustment. Continue this procedure until the operated
equipment is in the closed position when the actuator piston i s resting against the up travel stop. Tighten the
lower hex nut (key 11). Stroke the actuator down, and tighten the left-hand threaded hex nut (key 71). Tighten
each hex nut to the torque value listed in table 7.
5. Replace the access plate (key 72) and install the machine screws (key 73) if used.
Note
Skip the following step if an auxiliary handwheel actuator is mounted on the 1061 actuator.
6. Loosen the self-tapping screws (key 39), and adjust the travel indicator (key 38). Retighten the self-tapping screws.
CAUTION
If using a handwheel actuator, the splines of the 1061 actuator shaft could be damaged if excessive torque is applied to the
shaft by the manual actuator while the 1061 actuator is stopped at either end of travel. To protect the shaft, perform the
travel stop adjustment procedure found in the separate handwheel actuator instruction manual.
Principle of Operation
Piston movement is accomplished by loading air pressure on one side of the piston, and unloading air pressure from
the other side of the piston. If no positioner is used, a loading device, such as a 4-way switching valve, must be
provided. Such a device is not furnished as part of the actuator.
Consult the separate positioner instruction manual for the 1061 actuator principle of operation with positioner.
Maintenance
Actuator parts are subject to normal wear and must be inspected and replaced as necessary. The frequency of
inspection and replacement depends upon the severity of service conditions. Instructions are given below for
disassembly and replacement of parts.
(24 Seiten)
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