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Instruction Manual

D100304X012

656 Actuator

June 2017

Figure 7. Casing‐Mounted Adjustable Down Travel Stop for Size 30 and 40 Actuators (Style 2)

APPLY LUB

BV8054-D

Casing‐Mounted Adjustable
Down Travel Stop (figure 7)

Key

Description

Stop Nut

133

Travel Stop Stem

134

Washer

Key

Description

139* O‐Ring, nitrile

Sizes 30, 34, & 40
Sizes 45, 46, 50, & 60
Sizes 70 & 87

141

Cap Screw

142

Body

187

Travel Stop Cap

189

Jam Nut

241

Lubricant, Lithium Grease or equivalent
(not furnished with travel stop)

*Recommended spare parts

Содержание Fisher 656

Страница 1: ...cting diaphragm actuators They operate Vee Ballt control valves butterfly valves built in turbine valves louvers dampers and similar equipment They are suitable for either push down to close PDTC or push down to open PDTO applications and are available in sizes 30 40 and 60 to provide 54 mm 2 125 inch 64 mm 3 5 inch and 105 mm 4 125 inch travel respectively Do not install operate or maintain a 656...

Страница 2: ...PT internal Maximum Travel ACTUATOR SIZE MAXIMUM RATED STEM TRAVEL mm INCHES Standard Travel Stop Optional Travel Stop 30 54 2 125 Not available 40 89 3 5 76 3 60 105 4 125 97 3 8125 Actuator Weight Actuator Size Approximate Shipping Weight kg Pounds 30 23 50 40 32 70 60 73 160 Options J Top mounted handwheel adjustable travel stop J Casing mounted adjustable down travel stop 1 Control and stabili...

Страница 3: ...re shipped together the actuator is normally mounted on the valve Follow the valve instructions when installing the valve and actuator in a pipeline If the actuator is shipped separately or if it is necessary to mount the actuator on the valve four holes have been tapped into the yoke boss to anchor it to a mounting bracket WARNING Always wear protective gloves clothing and eyewear when performing...

Страница 4: ...t off the process to isolate the valve from process pressure Relieve process pressure from both sides of the valve Drain the process media from both sides of the valve D Vent the power actuator loading pressure and relieve any actuator spring precompression D Use lock out procedures to be sure that the above measures stay in effect while you are working on the equipment D The valve packing box may...

Страница 5: ...m grease lubricant or equivalent to the thrust bearing key 13 and position it on the lower bearing seat key 14 Lay the lower spring seat key 11 on top of the thrust bearing assembly 4 Mount the lower diaphragm case key 5 to the top of the yoke key 9 using the travel stops and cap screws keys 7 and 8 Alternate screws and travel stops on the sizes 30 and 40 See figure 2 for the correct orientation o...

Страница 6: ...uator stem threads Tighten slightly 4 Apply loading pressure to the diaphragm case to move the controlled element toward its wide open position Screw the controlled element linkage into the actuator stem connection far enough to move the controlled element toward its closed position 3 2 mm 1 8 inch and tighten the stem connection securely This adjustment ensures that the controlled element will cl...

Страница 7: ...iaphragm Case steel 6 Actuator Spring steel 7 Down Travel Stop steel Sizes 30 40 3 req d Size 60 4 req d 8 Cap Screw steel Sizes 30 40 3 req d Size 60 4 req d 9 Yoke cast iron 10 Actuator Stem steel 11 Lower Spring Seat steel 12 Adjusting Screw brass 13 Thrust Bearing steel ball bearing 14 Lower Bearing Seat steel Key Description 17 Nameplate SST 18 Drive Screw SST 6 req d 19 Cap Screw steel Size ...

Страница 8: ...6 Actuator June 2017 8 Figure 3 Fisher 656 Size 30 Actuator A APPLY THREAD LOCKING ADHESIVE HIGH STRENGTH TO SURFACE A CK1580 A0345 1 Figure 4 Fisher 656 Size 40 60 Actuators 40A7798A APPLY LITHIUM GREASE LUBRICANT ON SURFACES A B A B ...

Страница 9: ...304X012 656 Actuator June 2017 9 Figure 5 Typical Top Mounted Handwheel Assembly for Diaphragm Actuator Size 30 40 LUBRICATE END OF STEM AND PLATE WITH LITHIUM GREASE LUBRICATE STEM THREADS WITH ANTI SEIZE LUBRICANT 38A1209 D ...

Страница 10: ...0304X012 656 Actuator June 2017 10 Figure 6 Typical Top Mounted Handwheel Assembly for Diaphragm Actuator Size 60 LUBRICATE END OF STEM AND PLATE WITH LITHIUM GREASE LUBRICATE STEM THREADS WITH ANTI SEIZE LUBRICANT 32B0262 B ...

Страница 11: ...B BV8054 D Casing Mounted Adjustable Down Travel Stop figure 7 Key Description 54 Stop Nut 133 Travel Stop Stem 134 Washer Key Description 139 O Ring nitrile Sizes 30 34 40 Sizes 45 46 50 60 Sizes 70 87 141 Cap Screw 142 Body 187 Travel Stop Cap 189 Jam Nut 241 Lubricant Lithium Grease or equivalent not furnished with travel stop Recommended spare parts ...

Страница 12: ...sher Controls International LLC All rights reserved Fisher and Vee Ball are marks owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co Emerson Automation Solutions Emerson and the Emerson logo are trademarks and service marks of Emerson Electric Co All other marks are the property of their respective owners Neither Emerson Emerson Automation Soluti...

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