Instruction Manual Form 1292 October 1997Type 655 and 655R Types 655 and 655R Actuators for Self-Operated Control Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Actuator Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Loading Connections . . . . . . . . . . . . . . . . . . . . . . . . . 6 Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Startup for Pressure-Reducing Service . . . . . . . . . . 6 Startup for Pressure-Relief Service . . . . . . . . . . . . . 6 Adjustment for Pressure-Reducing or Pressure-Relief Service . . . . . . . . . . . . . . . . . . . . 6 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Top-Mounted Handwheel . . . . . . . . . . . . . . . . . . . . . 8 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Parts Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 W0466-1 / IL Figure 1. Type 655-ED Pressure-Reducing Valve Introduction Scope of Manual This instruction manual provides installation, adjustment, maintenance, and parts ordering for the Type 655 and 655R actuators and the top-mounted handwheel. Refer to separate instruction manuals for information about valves and accessories used with these actuators. Only personnel qualified through training or experience should install, operate, and maintain the Type 655 and 655R actuators. If you have any questions about these instructions, contact your Fisher Controls sales office or sales representative before proceeding. D100305X012 1F9408-E / DOC Figure 2. Type 655 Actuator Nameplate 3B. 42 33. 2 . It is recommended that a strainer be installed Specifications Specifications for the Type 655 and 655R actuators are shown in table 1.Type 655 and 655R Table 1. Specifications Actuator Sizes and Maximum Casing Pressures MAXIMUM CASING PRESSURE Psig 250 175 100 65 45 30 15 Bar 17. Use pressure-limiting or pressure-relieving devices to prevent service conditions from exceeding these limits. keep any adjacent piping clean and free of pipe scale or other debris that could possibly disrupt service. 4B 32. perform the procedures described in the Actuator Mounting portion of this section. Installation WARNING To avoid personal injury or property damage caused by bursting of pressureretaining parts.2 12. and ETR valves. be certain the service conditions do not exceed the casing pressure limits listed in table 1. 35.5 mm) stem connection Sizes 4A through 46: 2-13/16 inch (71 mm) yoke boss with 1/2 inch (12. 44 35.1 2. Both types are self-operated and direct-acting. 45 36. EK.0 All Other Sizes: 3/4 inch (19 mm) plus 1/8 inch (3 mm) for seating Effective Diaphragm Area See table 3 Spring Rate See key 6 in the parts list section Temperature Capabilities –20 to 180_F (–29 to 82_C) with standard diaphragm material. Type 655 actuators are used for pressure-reducing service when mounted on push-down-to-close valves such as the Design ED. 4A 3B. For the fluid and temperature capabilities of nonstandard diaphragm materials. 42. Also. 43 44.1 1. increasing pressure in the diaphragm casing forces the actuator stem downward.7 mm) stem connection Maximum Travel Sizes 3A and 4A: 7/16 inch (11 mm) plus 1/8 inch (3 mm) for seating Description Type 655 and 655R actuators (figure 1) are pressureactuated. Type 655R actuators are used for pressure-relief service when mounted on push-down-to-open valves such as the Design EDR. and ET valves. Refer to the appropriate valve instruction manual when installing the valve in the pipeline. and decreasing the pressure allows the actuator spring to lift the actuator stem upward. Before installing the actuator. 32. EKR.1 6. 46 APPROXIMATE WEIGHT Lb 45 50 65 75 Kg 20 23 29 34 ACTUATOR SIZE 3A. 46 Actuator Pressure Setting Ranges See table 2 Actuator Yoke Boss and Valve Stem Connection Diameters Sizes 3A through 36: 2-1/8 inch (54 mm) yoke boss with 3/8 inch (9. 43 34. Information for a specific actuator is also found on the nameplate (figure 2) of that actuator. 33 34. consult your Fisher Controls sales office or sales representative Casing Pressure Connections 1/2 inch NPT female Approximate Weights ACTUATOR SIZE 3A. inspect it for any damage. Type 655 and 655R actuators are normally shipped mounted on a valve.9 4. If the actuator is shipped separately or if it is necessary to mount the actuator on the valve. spring-and-diaphragm actuators used in conjunction with various valves to provide control for a wide variety of pressure regulation applications. that is. 4B. 36 4A. 45.5 3. 1. and the control line should be sloped down toward the diaphragm casing. Move the valve plug. if used) over the valve stem . c. f. d. during travel adjustment. The length of the valve stem will prevent the actuator yoke (key 7) from sitting on the bonnet properly. the valve should be installed with the actuator positioned below the pipeline. A damaged stem could cut the packing and allow leakage. and slide the travel indicator disk (key 11. Perform the following steps as appropriate for either push-down-to-close or push-down-to-open valve action. c. If movement is less than full travel. Connect the pressure control lines as described in the Loading Connection portion of this section. Place the actuator part way over the valve stem. and measure the distance from the bottom of the actuator yoke to the mating shoulder on the bonnet. and then add the valve plug travel to this measurement. Support the actuator above the valve body so the actuator stem and valve stem do not contact when the valve plug is seated. and tighten the yoke locknut. and travel indicator disk (key 11.Type 655 and 655R in the pipeline ahead of the regulator or relief valve to protect it while in service. by hand. yoke to the mating shoulder on bonnet. and use a wrench to turn the valve plug and stem assembly. Also. b. For Push-Down-To-Close Valves: a. For Push-Down-To-Open Valves: a. If the movement is more than full travel. yoke locknut. and measure the stem movement to check travel. Lower the actuator onto the valve body bonnet. CAUTION In the following procedures. turn the valve stem into the actuator stem the amount of under-travel. and use a wrench on the hex nuts to turn the valve plug and stem assembly. Measure the distance from the bottom of the actuator 3 . use tools carefully to avoid damaging the valve plug stem. lower the actuator until the actuator stem contacts the valve stem. Key numbers refer to figure 5 unless otherwise stated. Thread the valve stem into the actuator stem until the thread engagement is equal to the distance measured in the previous step. f. place the yoke locknut over the valve stem. if used) on top of the hex nuts (key 12). Connect the pressure control lines as described in the Loading Connection portion of this section. The following procedure describes how to mount the actuator on either a push-down-to-close or a pushdown-to-open valve so that the actuator stem and valve stem thread engagement will allow full travel and proper shutoff. e. Set the actuator onto the valve body. Thread the valve stem into the actuator stem the distance measured in the previous step. Then. b. This is to ensure that any forming condensate will maintain a water seal to protect the diaphragm. e. Place the actuator. turn the valve stem out of the actuator stem the amount of over-travel. Actuator Mounting The actuator may be installed either above or below the pipeline. And a conventional threevalve bypass (see figure 3) should be placed around the regulator or relief valve to permit continuous operation when it is being installed or repaired. With the valve plug positioned as described in step c above. 2. or tighten the hex nuts together. and make sure that valve stem movement corresponds to the desired travel. Turn the adjusting screw (key 10) into the yoke (key 7) to force the diaphragm (key 2) and diaphragm plate (key 4) against the upper diaphragm casing (key 1). Stroke the actuator. do not rotate the valve plug while it is seated since this may cause damage to the seating surfaces and thereby allow excessive leakage. Refer to figure 4 for actuator mounting components. Stroke the actuator until the diaphragm plate (key 4) contacts the down travel stop (see figure 4). Note Either turn the actuator. Raise the actuator so the valve plug can be lifted off the seat ring. Tighten the hex nuts (key 12) together. from the seated to the open position. If the regulator or relief valve is to be used for steam service. d. 2 13 11 5.0 7.0 1.7 0.0 5.1 2.2 0.6 2.4 3.5 0.4 0.3 5.4 1.5 0.0 0.2 5.02 1.2 0.9 0. Typical Installation Schematics 4 .07 0.0 1.3 0.6 0.0 0.0 7.9 0.4 3.0 5.0 4.6 2.7 6.0 4.1 0.3 0.8 2.5 1.5 0.0 2.2 1.4 0.2 0.6 65 43 37 34 20 43 35 43 35 29 19 17 26 22 26 22 18 12 16 13 16 13 11 7.3 3.2 0.Type 655 and 655R (1) Table 2.1 0.3 0.9 4.4 0.5 0.0 5.1 1.6 0.7 3.2 1.8 0.8 1.4 2.0 2.3 1.4 6.2 0.8 0.4 3.8 2.8 0. unbalance.8 3.3 1.1 0.5 18 15 18 15 13 10 7.0 1.5 0.8 2.9 1.2 1.8 0. and weight of valve plug not considered in calculations.2 0.3 0.8 0.3 1.6 2.5 4.5 0. 33 43 1E7933 27082 1E7954 27082 1E7933 27082 1E7954 27082 1E7924 27082 1F7143 27092 1E7933 27082 1E7954 27082 1E7933 27082 1E7954 27082 1E7924 27082 33.08 11 9.4 2.1 1.2 5.9 5.5 1.3 5.8 0.8 0.3 1.9 1.1 0.7 1.1 0.7 2.9 5.05 28 23 20 16 11 8.3 0.4 2.2 0.7 11 9. 4A 1F1769 27092 1F1768 27092 1F1767 27032 3B 4B 1E7933 27082 1E7954 27082 1E7933 27082 1E7954 27082 1E7924 27082 3B.0 4.4 4.9 2.5 2. 4B 1F7143 27092 1F1769 27092 32 42 32 42 32.5 1.0 1.5 0.0 1.5 1.1 0.9 0.0 4.4 0.1 23 19 16 13 10 8.0 8. 35 45 34 44 34.6 146 119 85 75 57 64 64 89 77 64 53 38 38 38 53 45 38 31 24 24 33 28 24 20 16 16 16 10.2 0.4 1.1 1.6 5.09 0.2 3.2 2.7 1.3 0.1 1.3 0.3 0.8 0.3 0.7 2.1 0.9 3.3 2.1 0.4 3.4 6.1 2.34 0.3 1.05 0.9 1.3 4.5 3.6 0.5 0.0 3.1 1.6 1. Effects of packing box friction.0 5.8 7.1 0.4 4.0 5.3 4.0 2.1 1.4 0.4 0.8 2.8 1.8 4.8 0.9 0.3 0.5 2.3 0.4 2.2 7.3 2.3 0.6 0.8 1.09 1.6 0.3 0.9 4.2 5.6 1.9 0.7 0.1 4. 43 1F7143 27092 1F1769 27092 34 1E7933 27082 1E7954 27082 78 44 32 26 19 50 42 50 42 35 20 14 32 26 32 26 22 12 19 16 19 16 14 7.3 0.0 1.0 4.4 1.0 1.3 7.2 0.8 1.8 2.0 6.2 0.8 1.1 0.2 2.6 0.7 0.8 0.9 0.5 0. 46 36 46 35 45 35.1 1.4 4.9 0.1 1.4 0.0 5.6 3.3 2.7 1.5 7.3 0.5 4.0 0.0 11 9.8 4.2 0.2 0.1 7.1 2.0 2.6 1.0 2.3 0.1 5.5 5.1 8.2 0.2 0.3 1.5 3.0 3.0 2.4 0.5 0.8 8. 44 1E7933 27082 1E7954 27082 1E7924 27082 1F7143 27092 1F1769 27092 1F1768 27092 1E7933 27082 1E7954 27082 1E7933 27082 1E7954 27082 1E7924 27082 1F7143 27092 1F1769 27092 1F1768 27092 1F1767 27032 1F7144 27112 1E7933 27082 1E7954 27082 1E7933 27082 1E7954 27082 1E7924 27082 1F7143 27092 1F1769 27092 1F1768 27092 1F1767 27032 1F7144 27112 1F7130 27112 13 11 9.3 7.6 2.4 0.0 7.6 0.3 7.4 6.9 0.8 4.9 0.5 0.9 1.0 5.2 3.5 0.7 7.1 5.5 1.8 1.2 1.1 36. 13A6502-A 13A6503-A A1628-1 / IL PRESSUREĆREDUCING INSTALLATION PRESSUREĆRELIEF INSTALLATION Figure 3.2 3.8 1.3 0.5 0.4 1.2 1.5 3.1 0.7 0.07 1.1 0.0 2.3 6.0 9.9 4.07 0.0 0.4 0.1 3.3 1.2 1.6 0.4 2. Actuator Pressure-Setting Ranges PRESSURE PRESSURE PRESSURE PRESSURE REDUCTION RELIEF REDUCTION RELIEF ACTUATOR SPRING PART ACTUATOR SPRING PART Minimum Maximum Minimum Maximum Minimum Maximum Minimum Maximum SIZE NUMBER SIZE NUMBER Psig Bar Psig Bar Psig Bar Psig Bar Psig Bar Psig Bar Psig Bar Psig Bar 1E7924 27082 1F7143 27092 3A.8 0.1 0.3 0.06 0.0 3.3 1.9 13 11 13 11 9.5 11 11 15 13 11 9.08 0.8 3.5 5.3 0.2 2.4 0.8 174 135 96 78 59 107 92 107 92 78 60 43 65 55 65 55 47 36 40 34 40 34 29 22 16 28 23 12.3 2.0 5. 2 56. 44 35. 45 36.5 Cm2 --117 182 318 474 7/8 (22) In.1 31.2 --16.3 31.3 777 119.2 49.3 73. DV3742-B DH4667-B 31A0223-B B0816-1 / IL PUSHĆDOWNĆTOĆCLOSE VALVE PUSHĆDOWNĆTOĆOPEN VALVE Figure 4.2 76.5 736 112.0 77.0 26.6 53.2 8.0 821 125.7 77.0 Cm2 61 134 221 358 523 3/8 (10) In.0 Cm2 --103 170 307 465 723 1050 834 127.6 1100 169.2 181.6 36. 4B 32.2 10. Actuator/Valve Components 5 .5 78.5 40.8 759 114.2 9.3 51.0 134.0 84. For the spring rates of a particular spring.8 Cm2 61 136 227 366 534 1/4 (6) In.2 1140 173.7 19.2 --18.4 20.2 55.6 21.5 190. 46 0 In. see key 6 in the Parts List section.8 Cm2 59 132 210 345 508 7/16 (11) In.2 20.0 768 117.2 23.8 129.0 Cm2 57 130 200 335 497 9/16 (14) In.8 30.5 Cm2 62 139 235 374 547 3/16 (5) In. IN. 4A 3B.5 32.0 1110 171.5 21.0 93.8 82.1 35.5 81.2 9.Type 655 and 655R Table 3.0 1070 163.0 52.1 28.0 1230 1.0 Cm2 66 152 258 406 600 865 1/8 (3) In.1 1100 166.2 8.8 52. 43 34. Effective Diaphragm Area(1) TRAVEL DOWN FROM UPPER CASING STOP.4 47.1 20.6 72. (mm) ACTUATOR SIZE 3A.8 34.2 9.4 58.2 9.4 1150 177.5 1120 172.8 Cm2 59 131 205 340 502 1/2 (13) In.5 788 120.2 9.0 809 122.0 Cm2 56 128 195 330 490 3/4 (19) In.2 1170 179.0 63. 42 33.9 20. Make the pipeline tap at least four to eight pipe diameters away from the regulator or relief valve. 3. Open the needle valve in the control line. 3. Close the valve in the bypass line. figure 8). Adjustment For Pressure-Reducing or Pressure-Relief Service The actuator is factory-set as specified on the order. 3. and tighten the yoke locknut with a hammer and punch. Stroke the actuator. turn the adjusting screw (key 10. to avoid abnormal velocities or turbulence. 2. and then turn the adjusting screw until the valve begins to travel at the desired pressure. Startup For Pressure-Relief Service 1. Remove the diaphragm (key 2). To adjust the downstream pressure setting for pressure-reducing service. Partially closing or throttling this valve will tend to dampen any cycling or pulsating action of the regulator. swage. Never completely close the needle valve while the regulator is in operation. replace it through the following steps: 1. key 142. stroke the actuator. Disassemble the actuator by following steps 1. To decrease the pressure setting. Turn the adjusting screw into the yoke to increase spring compression and thus allow the valve to begin travel at a higher loading pressure. figures 6 and 7. and lift the diaphragm plate (key 4) out of the actuator body. Typical installation schematics are shown in figure 3. Lower the actuator onto the valve body bonnet. proceed as follows. and tighten the yoke locknut. Typical installations are shown in figure 3. change the pressure setting by following the procedures listed below. Changing the spring adjustment merely shifts the position of the spring either up or down so that valve travel can coincide with the actuator pressure setting range. Slowly open the upstream shutoff valve. to increase the pressure setting. h. While monitoring loading pressure with a pressure gauge. 2. Fit the control line with a large-port needle valve. Open the needle valve in the control line. Turn the adjusting screw out of the yoke to decrease spring compression and thus allow the valve to begin travel at a lower loading pressure. turn the valve stem out of the actuator stem the amount of under-travel. The new pressure setting must not exceed the limits given in tables 1 and 2 or in any applicable codes. tighten the hex nuts (key 12) against the actuator stem (key 8). 4. Open the downstream shutoff valve. turn the adjusting screw counterclockwise. CAUTION To protect equipment in the process system from a sudden release of pressure. or the upstream pressure setting for pressure-relief service. Slowly open the upstream shutoff valve. Be sure to change the nameplate to indicate the new pressure setting. 3 and 4 of the Disassembly portion of the Maintenance section. 2. Loading Connections Install the control line following the steps listed below. Close the valve in the bypass line. and the pressure range is stamped on the nameplate (figure 2). Connect the control line into either the upstream pipeline for pressure-relief service or into the downstream pipeline for pressure-reducing service as shown in figure 3. 1. 6 . Then. 2. Startup The procedures for placing into operation and adjusting the equipment for both pressure-reducing and pressure-relief applications are described below. If the spring does not provide the required pressure setting. If a pressure setting other than the one specified is desired.Type 655 and 655R g. always use a pressure gauge to monitor pressure when making adjustments. Startup For Pressure-Reducing Service 1. unscrew the cap screw (key 3). turn the valve stem into the actuator stem the amount of over-travel. Note Changing the spring adjustment will not change the actuator pressure range for that particular spring (see table 2). 4. After correct travel has been obtained. and measure the stem movement to check travel. If the movement is more than full travel. 3. or nipple. Open the downstream shutoff valve. 4. or any elbow. If the movement is less than full travel. figure 5) clockwise. Connect the other end of the control line to the 1/2-inch NPT connection in the center of the upper diaphragm casing (key 1) or to the connection in the handwheel body (key 28. Then. Shutdown For both pressure-reducing and pressure-relief applications. Loosen the yoke locknut (figure 4) with a hammer and punch. 3. Close the upstream shutoff valve slightly. d. 1. c. 5. off the seat. Close the needle valve in the control line. make sure the adjusting screw (key 10) remains screwed into the yoke (key 7). Rotate the handwheel (if one is used) counterclockwise to be sure the handwheel is not compressing the spring (key 6). 7 . 1. the actuator must be removed from the valve. use tools carefully to avoid damaging the valve plug stem. refer to figure 3. or precompressed spring force. start the assembly at the appropriate step. uncontrolled process fluid. Actuator This procedure describes how the actuator can be completely disassembled and assembled. b. and the actuator stem (key 8) must be completely disengaged from the valve plug stem by rotating the actuator. disassemble only those parts necessary to accomplish the job. and unscrew it from the valve bonnet. The frequency of inspection and replacement depends on the severity of service conditions. and unscrew the valve plug stem out of the actuator stem as far as it will go. Slowly close the downstream shutoff valve. Key numbers refer to figure 5. For complete disassembly. then. rotate the entire actuator until the actuator stem disengages completely from the valve plug stem. b. A damaged stem could cut the packing and allow leakage. a. and follow the procedures described below. c. do not rotate the valve plug while it is seated since this may cause damage to the seating surfaces and thereby allow excessive leakage. by hand. move the valve plug. Turn the adjusting screw (key 10) counterclockwise to relieve all spring compression. and relieve all internal pressure D Release spring compression as described in step 2 of the Disassembly section The maintenance instructions are divided into two sections: Actuator and Top-Mounted Handwheel. 2. during travel adjustment. Disassembly CAUTION In the following procedure. WARNING Avoid personal injury or property damage from sudden release of pressure. Slowly open the bypass valve while monitoring downstream pressure. Turn the adjusting screw into the yoke (key 7) to force the diaphragm (key 2) and diaphragm plate (key 4) against the upper diaphragm casing (key 1). Perform the appropriate procedure according to the respective valve action. Before starting disassembly: D Isolate the regulator or relief valve from the system pressure. Also. Maintenance Actuator parts are subject to normal wear and must be inspected and replaced when necessary. and unscrew it from the valve bonnet. When inspection or repairs are required. Loosen the hex nuts (key 12). Close the upstream shutoff valve.Type 655 and 655R 3. Replace the spring and reassemble the actuator by following steps 5 and 6 of the Assembly portion of the Maintenance section. Loosen the yoke locknut (figure 4) with a hammer and punch. 2. 4. While lifting the actuator so that the valve plug is not forced against the seat. For Push-Down-To-Close Valves: Note To prevent the actuator stem (key 8) from rotating while performing the following procedure. For Push-Down-To-Open Valves: a. Loosen the two hex nuts (key 12). Also. turn the adjusting screw into the yoke (key 7) to raise the diaphragm plate (key 4). 8 . Note When replacing the upper diaphragm casing (key 1). 3. Before starting assembly.Type 655 and 655R e. and install this assembly into the actuator. Some Type 655R actuators will have travel stops (key 13. apply Molykote No. full opening of the valve plug can be restricted through the appropriate positioning of the top-mounted handwheel. 7 and 8) are usually used as adjustable travel stops to limit full upward travel of the actuator stem. Remove the cap screw (key 3). then. unscrew the cap screws (key 19) for size 3A and 4A actuators or the cap screws and hex nuts (keys 19 and 20) for all other sizes. Turning the handwheel clockwise forces the actuator stem downward. start the instructions at the appropriate step. unscrew the cap screws (key 21). closing of the valve plug can be restricted by using the handwheel. To remove the upper diaphragm casing (key 1). key 137. For size 3B through 46 actuators. figure 8) is used to hold the handwheel in position. not shown) in place of three of these six cap screws. Place the upper diaphragm casing onto the lower diaphragm casing. secure the casings with the cap screws (key 19). 8. 7. crisscross pattern. 8. Install the diaphragm. 2. 1. This will also ensure that the diaphragm will Top-Mounted Handwheel Top-mounted handwheel assemblies (figures 6. Rotate the entire actuator until the actuator stem disengages from the valve plug stem. For size 3B through 46 actuators. For size 3A and 4A actuators. For size 3A and 4A actuators. For all other actuator sizes. 5. and remove the lower diaphragm casing (key 5). then. have enough slack inside the casings for efficient travel. Perform the disassembly only as necessary to accomplish the required maintenance. Tighten the cap screws to no more than 20 foot-pounds (27 newton-meters) of torque using an even. Install the lower spring seat (key 9) and the actuator spring (key 6). If the actuator is used with a push-down-to-close valve. 3. For size 3A and 4A actuators. 7. 4. 6. Note To take some of the slack out of the diaphragm (key 2) at the bolt circle. If a top-mounted handwheel assembly is used. Turn the adjusting screw (key 10) counterclockwise out of the yoke (key 7) to relieve all spring compression. install the lower diaphragm casing (key 5). lift the diaphragm plate (key 4) and actuator stem assembly out of the actuator body. If it is not. secure the casing with the cap screws and hex nuts (keys 19 and 20). Key numbers refer to figure 6 for size 3A and 4A. not shown) in place of three of these six cap screws. 5. Instructions are given below for complete disassembly and assembly. remove the spring and the lower spring seat (key 9). follow the procedures outlined in the Startup section of this instruction manual. and separate the diaphragm plate from the actuator stem. 77 or equivalent lubricant to the threads and the bearing end of the adjusting screw (key 10) as indicated in figure 5 by the letter A. 9. remove the lower diaphragm casing (key 5). figures 6 and 7. A locknut (key 27. 9. If the actuator is used with a push-down-toopen valve. making sure that the patterned side of the diaphragm is next to the diaphragm plate. Connect the pressure control line by following the procedures outlined in the Loading Connections portion of the Installation section. refer to steps 4 through 8 of the Disassembly portion of the Top-Mounted Handwheel section. and figure 8 for size 32 through 46 top-mounted handwheel assemblies. Assembly This procedure assumes that the actuator is completely disassembled. set the lower diaphragm casing (key 5) onto the yoke (key 7). Remove the diaphragm (key 2). and secure it with the cap screws (key 21). Secure the diaphragm plate (key 4) to the actuator stem (key 8) with the cap screw (key 3). figure 7 for size 3B and 4B. Mount the actuator onto the valve by following the procedures outlined in the Actuator Mounting portion of the installation section. while turning the handwheel counterclockwise allows the spring to force the actuator stem upward. To start up and adjust the actuator. Some Type 655R actuators will have travel stops (key 13. 6. 4. be sure there are no wrinkles in the diaphragm that might cause the diaphragm to tear or allow leakage. begin the assembly at the appropriate step. and then lift off the upper diaphragm casing (key 1. remove the cap screws (key 19. figures 6 and 7. refer to the serial number found on the actuator nameplate (key 17. For size 3A and 4A actuators. crisscross pattern. Also. and secure it with the hex nut (key 22. start the instructions at the appropriate step. figure 7. figure 5). 5. key 141. figures 6 and 7. figure 5). figure 5) and handwheel assembly. figure 8) onto the handwheel stem. figures 6 and 7. figure 8). figure 8) from the handwheel stem (key 26. figures 6 and 7. figure 8). figures 6 and 7. figure 8) and washer (key 24. 3. figures 6 and 7. key 54. Bypass the control valve. Assembly This procedure assumes that the handwheel assembly is completely disassembled. key 137. and secure it with the cap screws (key 19. figures 6 and 7. figures 6 and 7. drive out the groove pin (key 31.Type 655 and 655R Disassembly 1. a travel stop (key 34. figure 8) onto the handwheel stem. and slide the pusher plate (key 32. 7. For size 3B through 46 actuators. figure 8). key 54. key 133. 4. key 142. 6. Loosen the hex nut (key 27. Tighten the cap screws to no more than 20 footpounds (27 newton-meters) of torque using an even. figure 8). For Type 655. crisscross pattern. 2. and then remove the handwheel stem through the bottom of the handwheel body (key 28. If it is not. Insert the handwheel stem into the handwheel body (key 28. then. Tighten the cap screws to no more than 20 foot-pounds (27 newton-meters) of torque using an even. not shown. and remove the tubing or pipe from the handwheel body. figure 8). figure 8) or for ease of handling. key 138. key 135. A screwdriver slot in the top of the handwheel stem is provided for this purpose. figure 8). figures 6 and 7. key 140. key 135. For size 3B through 46 actuators. figure 7) should also be inserted on the handwheel stem with these parts. figure 5). specify the complete 11-character part number from the following parts list when ordering replacement parts. if necessary. 4. For size 3A and 4A actuators. 7. Slide the pusher plate (key 32. Check the O-ring (key 29. figures 6 and 7. figures 6 and 7. separate the handwheel assembly from the upper diaphragm casing. figures 6 and 7. Relieve all loading pressure. figure 8). key 134. 6. 1. Install the handwheel (key 25. figure 5) and the handwheel (key 25. key 137. key 134. 9 . Unscrew the locknut (key 27. key 142. 2. the pusher. figure 7) should also be removed with these parts. not shown. figure 8) off the handwheel stem. Connect the pressure control line to the topmounted handwheel assembly by following the procedures outlined in the Loading Connections portion of the Installation section. 5. key 51. follow the procedures outlined in the Startup section of this instruction manual. and to the O-rings as shown in figures 6. figure 8). To complete disassembly. figure 5). remove the cap screws and hex nuts (keys 19 and 20. a travel stop (key 34. insert the groove pin (key 31. apply Lubriplate MAG-1 lubricant (key 241) or equivalent to the handwheel stem and Parts Ordering When corresponding with your Fisher Controls sales office or sales representative about this equipment. figure 5) and handwheel assembly onto the actuator body. size 3B and 4B actuators. key 51. figure 8) onto the handwheel stem. To start up and adjust the actuator. figure 8) counterclockwise to relieve all compression. To replace the O-ring (key 139. During assembly. and. figure 8). figures 6 and 7. threads. 7 and 8. and lift the handwheel body (key 28. Remove the hex nut (key 22. 8. Turn the adjusting screw (key 10. set the upper diaphragm casing (key 1. set the handwheel body onto the actuator. key 140. figures 6 and 7. Turn the handwheel clockwise two or three turns. figure 5). figure 8). 3. This can be accomplished by removing the cap screws that secure the handwheel assembly to the upper diaphragm casing (key 33. and replace it if necessary. key 137. and secure it with the cap screws and hex nuts (keys 19 and 20. 8. figure 8) and washer (key 24. figure 6) off the actuator. and lift off the handwheel. screw the hex nut (key 27. size 3B and 4B actuators. For Type 655. figures 6 and 7. steel Sizes 36 & 46. cd pl steel Sizes 3A & 4A thru sizes 33 & 43 Sizes 34 & 44 Sizes 35 & 45. (16 mm) travel 3/4 in.Type 655 and 655R Parts List Actuator Key 1 Description Upper Diaphragm Casing Cast iron Sizes 3A & 4A Sizes 3B & 4B W/o top-mounted handwheel W/top-mounted handwheel Steel Sizes 3A & 4A Sizes 3B & 4B W/o top-mounted handwheel W/top-mounted handwheel Sizes 32 & 42 W/o top-mounted handwheel W/top-mounted handwheel Sizes 33 & 43 W/o top-mounted handwheel W/top-mounted handwheel Sizes 34 & 44 W/o top-mounted handwheel W/top-mounted handwheel Sizes 35 & 45 W/o top-mounted handwheel W/top-mounted handwheel Sizes 36 & 46 W/o top-mounted handwheel W/top-mounted handwheel Diaphragm. (11 mm) travel 5/8 in. zn pl steel Adjusting Screw. steel Sizes 34 & 44. neoprene Sizes 3A & 4A Sizes 3B & 4B Sizes 32 & 42 W/o top-mounted handwheel W/ top-mounted handwheel Sizes 33 & 43 W/o top-mounted handwheel W/ top-mounted handwheel Sizes 34 & 44 W/o top-mounted handwheel W/ top-mounted handwheel Sizes 35 & 45 W/o top-mounted handwheel W/ top-mounted handwheel Sizes 36 & 46 W/top-mounted handwheel Cap Screw. steel Spring Yoke Sizes 3A thru 36 Cast iron Steel Sizes 4A thru 46 Cast iron Steel Actuator Stem. (11 mm) travel 5/8 in. (19 mm) travel Sizes 4A thru 46 7/16 in. (11 mm) travel 5/8 in. cd pl steel (2 req’d) Sizes 3A thru 36 Sizes 4A thru 46 Travel Stop. (16 mm) travel 3/4 in. (16 mm) travel 3/4 in. cd pl steel Travel Indicator Disk. cd pl steel Sizes 3A thru 36 Sizes 4A thru 46 Lower Spring Seat. stainless steel (optional) Sizes 3A thru 36 Sizes 4A thru 46 Hex Nut. (11 mm) travel 5/8 in. (19 mm) travel Screw. steel Sizes 35 & 45. steel (3 req’d) (not shown) Type 655R sizes 32 thru 46 only 7/16 in. (11 mm) travel 5/8 in. steel Sizes 33 & 43. stainless steel (2 req’d) (optional) Travel Indicator Scale. stainless steel (optional) Sizes 3A thru 36 7/16 in. (19 mm) travel Part Number 1F725619042 1F725819042 1F725719042 1F725619042 2F649719042 2F649319042 2F649419042 2F649519042 2F649619042 1F724419012 2F725319012 2F725419012 1H375822012 2R877622012 2H567022012 2F581228992 2F581125062 2F747828992 2E801125062 2F747928992 2E682625062 2F748028992 3F649825062 2F748128992 3F699925062 1F725102192 1F725902192 1F702202112 1F702202192 1F702302112 1F7023X0012 1F702402112 1F7024X0022 1F702502112 1F7025X0022 1F7026X0012 1E760432992 1F710532982 1F710632992 14 15 8 5 1F724519012 1J409522012 2F725419012 2H567022012 2F581125062 2E801125062 2E682625062 3F649825062 3F699925062 See following table 6 7 2E869619042 2H786522012 3E807019042 3H786722012 1F581524102 1F581424102 1R179923122 1E807324102 2* 9 10 11 1E793138992 1E807538992 1P131224142 1A353724122 12 13 1F709224092 1F709124092 (none req’d) 1E793238992 3 4 1F724719042 1F724919042 1F724819042 1F724719042 1E793438992 1E793538992 1E793638992 1E807638992 1E807738982 1E808138992 10 *Recommended spare parts . (19 mm) travel Sizes 32 & 42 Sizes 33 & 43 Sizes 34 & 44 Sizes 35 & 45 Sizes 36 & 46 Lower Diaphragm Casing Sizes 3A & 4A Cast iron Steel Sizes 3B & 4B Cast iron Steel Sizes 32 & 42. (16 mm) travel 3/4 in. (16 mm) travel 3/4 in. (19 mm) travel Part Number Key 4 Description Diaphragm Plate (Continued) Sizes 3B & 4B Type 655 Type 655R 7/16 in. 36 & 46 Diaphragm Plate. cast iron Sizes 3A & 4A Type 655 Type 655R 7/16 in. Type 655 only Part Number 18A2300X012 38A1218X012 37A9439X012 37A9440X012 1D237506992 1D267306992 1F118028992 1H382199052 1F117999012 17 18 19 33 20 1A560632982 1J833124092 1A346524122 1A560632982 1A368424052 1A368424052 34 21 Sizes 32 thru 46 51 54 133 134 135 137 138* 139* 140 141 142 Handwheel. cast iron Handwheel Stem. nitrile Groove Pin. cast iron Hex Nut. nitrile O-Ring. 33. steel Cap Screw.396 kg) can (not furnished with actuator) 1F143819042 1A353724122 27A9646X012 1A518925072 1F117999012 18A2300X012 1D237506992 1D267306992 1F118028992 1A368424052 37A9437X012 37A9438X012 1M1100X0012 Top-Mounted Handwheel Sizes 3A. stainless steel (4 req’d) Cap Screw. steel Hex Nut. cd pl steel Sizes 3B & 4B (6 req’d) All other sizes W/o travel stops (6 req’d) W/travel stops (3 req’d) Part Number Key 27 28 1E793938992 1E808438992 1F9408X00A2 1A368228982 1F725024052 1J768924052 1E760324052 1E760324052 1A675124052 1A675124052 29* 30* 31 32 Description Hex Jam Nut Cd pl steel Handwheel Body. steel Sizes 3A & 4A (6 req’d) Sizes 3B & 4B (12 req’d) Sizes 32. stainless steel (not shown)(optional) Sizes 3A thru 36 Sizes 4A thru 46 Nameplate. steel (not shown) Sizes 3B & 4B. bronze Sizes 3A & 4A Sizes 3B & 4B 1A353724122 1A518925072 1F143819042 38A1218X012 27A9644X012 241 *Recommended spare parts 11 . stainless steel Drive Screw. cd pl steel O-Ring. 3B & 4B 22 24 25 26 Hex Jam Nut Cd pl steel Washer. steel (not shown) Pusher Plate. cd pl steel Sizes 3A & 4A (none req’d) All other sizes (quantity req’d same as key 19) Cap Screw. cast iron Sizes 3A & 4A. cd pl steel Pusher. 14 oz. cd pl steel Handwheel Stem. supply connection Lubriplate Mag-1. & 43 (12 req’d) Sizes 34 & 44 (16 req’d) Sizes 35 & 45 (20 req’d) Sizes 36 & 46 (24 req’d) Hex Nut. supply connection O-Ring. supply connection 1/2 in. 4A. nitrile O-Ring. supply connection 1/2 in. bronze Washer. (0.Type 655 and 655R Key 16 Description Twin Speed Nut. steel Handwheel Body. nitrile (not shown) Sizes 3B & 4B only Groove Pin. steel Sizes 3A & 4A Sizes 3B & 4B Cap Screw. supply connection Sizes 3B & 4B 1/4 in. cd pl steel Handwheel. cast iron 1/4 in. 42. 1/2 in. cd pl steel (6 req’d) (not shown) Sizes 3B & 4B only Travel Stop. Type 655 and 655R 30A8342-A/DOC SIZE 3A AND 4A ACTUATOR DIAPHRAGM CASINGS 30A8341-A/DOC A APPLY MOLYKOTE NO. Size 3A and 4A Top-Mounted Handwheel Assembly Figure 7. 77 LUBRICANT TO ADJUSTING SCREW Figure 5. Type 655 Actuator APPLY LUB PART NOT SHOWN : 31 28A1216-C/DOC APPLY LUB PARTS NOT SHOWN : 30 & 31 38A1217-B/DOC Figure 6. Size 3B and 4B Top-Mounted Handwheel Assembly 12 . 600 13. steel SPRING PART NUMBER 1F713027112 1F714427112 1F176727032 1F176827092 1F176927092 1F714327092 1E795327082 1E792427082 1E795427082 1E793327082 1E792327092 1J258127092 1E795627082 COLOR CODE Aluminum & red Aluminum & dark green Dark green Aluminum Dark blue Aluminum & dark blue Light blue Light green Light grey Yellow Dark grey Aluminum & brown White SPRING RATE Lb/in.Type 655 and 655R BV8008-E/DOC Figure 8.010 13 . Key 6 Spring. 123 246 368 490 612 830 1260 1470 1770 2100 735 1000 2520 N/mm 22 43 64 86 107 145 220 257 310 368 129 175 441 SAFE LOAD Lb 290 545 843 1060 1187 1630 1840 2200 2600 3045 1160 1575 3150 N 1290 2420 3750 4720 5200 7250 8184 9790 11.500 5160 7000 14. Size 32 through 46 Top-Mounted Handwheel Assembly. Inc. All other marks are the property of their respective owners. EFisher Controls International. For information.S. Inc.theyarenottobeconstruedaswarrantiesorguarantees. 1997. .A.expressorimplied. Iowa 50158 USA Cernay 68700 France Sao Paulo 05424 Brazil Singapore 128461 14 Printed in U. Fisher-Rosemount. and Managing The Process Better are marks owned by Fisher Controls International.andwhileeveryefforthasbeenmadetoensuretheiraccuracy. 1975. or Fisher-Rosemount Systems. Inc. regarding the products or services described herein or their use or applicability. All Rights Reserved Thecontentsofthispublicationarepresentedforinformationalpurposesonly. contact Fisher Controls: Marshalltown.Type 655 and 655R Fisher. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.