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Instruction Manual

D104483X012

785C Actuator

May 2022

24

3. Remove the bonnet-to-actuator bolting securing the actuator to the bonnet. Make sure the actuator is supported

and secured by other means prior to loosening nuts.

4. Using the lifting points provided (key 2215), hoist the actuator vertically taking care not to contact the stem in a

manner that would cause damage.

Disassembling the Pneumatic Cylinder

The following procedure is for the replacement of the internal piston seals, bearing seals, and O-rings (see figure 19):

1. Complete Actuator Removal procedures per the applicable section of this instruction manual. Ensure the actuator is

de-energized and isolated from the process.

2. Loosen the tie-rod hex nuts (key 2212) in a crisscross pattern to remove the pneumatic cylinder tie rod bolts

(key 2213).

3. Remove the top cylinder end flange (key 2210) using the lifting lugs.
4. Remove the tie rods (key 2213). Remove the cylinder (key 2209) from the head flange (key 2201).

For a

partial replacement

of the pneumatic cylinder seals (namely, to replace all the seals with the exception of the

head flange seal, (key 2102, 2107 and 2202), proceed to the Replacing Pneumatic Cylinder Seals section .

For complete

total replacement

of the pneumatic cylinder seals (namely, to replace all the seals), the pneumatic

cylinder disassembly procedure proceed to step 5.

5. Unscrew the piston (key 2206) from the actuator stem using the two threaded holes (for actuator sizes 280 - 435

thread size is M10; for sizes 485 - 685 thread size is M16) by rotating counter-clockwise. Then lift and remove the
piston from the actuator stem. Retain the washer (key 2205) located beneath the piston on to the stem. This
operation is facilitated by the presence of threaded holes (figure 18).

6. Loosen and remove the fasteners holding the head flange (key 2201

,

figure 18 and 21)

.

7. Lift and remove the head flange (key 2201) from the spring can of 785C Spring Return Actuator or yoke of 785C

Springless Actuator.

Figure 18.

785C Pneumatic Cylinder Components

2213

2212

2211

2210

2206

2205

2209

2201

2105
2106

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Содержание Fisher 785C

Страница 1: ...ng 35 Parts Ordering 36 Parts Kits 36 Parts List 47 Assembly Drawings 50 Figure 1 Fisher 785C Single Acting Spring Return with Handpump X1851 Introduction Scope of Manual This instruction manual includes installation maintenance and parts information for the Fisher 785C piston actuator Refer to separate instruction manuals for information regarding other equipment and accessories used with these a...

Страница 2: ... inch travel High performance mounting kits are available for travel above 203 mm 8 inch Construction Materials 4 Part Material Cylinder Carbon Steel Nameplate and Travel Scale Stainless Steel Piston Carbon Steel Piston Rod Stainless Steel Stem Connector Carbon Steel or Stainless Steel Tie Rod Carbon Steel or Stainless Steel Upper Lower Heads Carbon Steel Yoke Carbon Steel Lifting Point Load Ratin...

Страница 3: ...ng or double acting spring return piston actuators utilize a spring below the piston outside the pressurized chamber that will drive the piston rod upon a loss of supply pressure This fail action will result in forcing an attached control valve to either fail open or fail closed The fail action of 785C double acting springless piston actuators relies on pneumatic system such as system with Fisher ...

Страница 4: ...685 571 3657 567 32 1 1 4 127 5H 610 24 51 2 178 7 1 Consult your Emerson sales office for additional sizes 2 Actuator size 280 385 are available with a top mounted handwheel Size 435 685 are available with a side mounted manual handpump 3 High Performance Yoke required for ODV packages with travel greater than 8 inches Optional for use in high vibration or fast stroke package When ordering a high...

Страница 5: ...4 127 5H 420 16 51 2 178 7 1 Consult your Emerson sales office for additional sizes 2 Actuator size 335 385 are available with a top mounted handwheel Size 435 685 are available with a side mounted manual handpump Table 5 785C Double Acting Spring Return Standard Constructions 1 ACTUATOR SIZE PISTON AREA VALVE STEM CONNECTOR SIZE YOKE BOSS DIAMETER MAX TRAVEL Without Manual Override With Manual Ov...

Страница 6: ...3871 1400 55 0 2 4 2 489 110 Table 7 Handpump Specification ACTUATOR SIZE HYDRAULIC CYLINDER OUTPUT THRUST mm Inch N lbf 435 135 5 3 78726 17698 485 175 6 9 132291 29740 535 175 6 9 132291 29740 585 200 7 9 172788 38844 635 200 7 9 172788 38844 685 235 9 3 238555 53629 Table 8 Lifting Point Load Ratings ACTUATOR SIZE LIFTING ORIENTATION NUMBER OF LIFTING POINTS USED MAXIMUM WELDED EYELET LOAD AT L...

Страница 7: ...oves clothing and eyewear when performing any installation operations to avoid personal injury If installing into an existing application also refer to the warning at the beginning of the Maintenance section in this manual Check with your process or safety engineer for any additional measures that must be taken to protect against process media To avoid personal injury or property damage caused by ...

Страница 8: ... valve instructions when installing the 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 in this instruction manual Refer to the individual product instruction manuals for the installation or mounting of a FIELDVUE DVC6200 digital valve controller If the actuator is being installed without ...

Страница 9: ...psig This can cause loss of control of process fluid and further damage to the actuator Considerations should be given to the use of high strength fatigue resistant stem materials in these applications WARNING To avoid loss of control of process fluid and subsequent personal injury or property damage caused by bursting of pressure retaining parts be sure the cylinder pressure does not exceed 5 5 b...

Страница 10: ...load for spring return actuator A bypass assembly is furnished only when an actuator with manual override is specified see figure 4 The bypass assembly allows the pressure to equalize on either side of the actuator piston so that the manual override can be used to position the control valve Flow through the bypass tubing is controlled by an angle needle valve which is operated manually This valve ...

Страница 11: ...dicated on the instruction label shown in figure 6 3 Check the correct operation of the actuator by monitoring the movement of the travel indicator 4 Once manual operation is completed the bypass valve should be close and remain shut off during pneumatic supply air operation 5 Ensure the unbalanced thrust such as spring return actuator spring thrust is balanced by applying a pneumatic load and dis...

Страница 12: ...urnished only when an actuator with manual override is specified The bypass assembly allows the pressure to equalize on either side of the actuator piston so that the manual override can be used to position the control valve Flow through the bypass tubing is controlled by an angle needle valve which is operated manually This valve should be closed when supply pressure is being used to operate the ...

Страница 13: ... the REMOTE operation with the pneumatic supply Once manual operation is completed the bypass valve should be close and remain shutoff during pneumatic supply air operation Figure 8 Manual Hydraulic Handpump Engagement Disengagement Instructions Plate Figure 9 Manual Hydraulic Handpump Typical Constructions Design Varies for Different Actuator Type and Handpump Type STOP VALVE FOR FAST STROKE TYPE...

Страница 14: ...E Table 9 Handpump Schematics 1 Actuator Type Handpump Type Schematics Figure 785C Spring Return Rod Extend Fail Down Single or Double Acting Fast Stroke MHQ 11 Standard Stroke MHP 12 785C Spring Return Rod Extend Fail Up Single or Double Acting Fast Stroke MHQ 13 Standard Stroke MHP 14 785C Springless Double Acting Standard Stroke MHP 15 Fast Stroke MHQ 16 or 17 1 Notice the 785C Spring Return sc...

Страница 15: ...CY MANUAL OPERATION IN CASE OF PNEUMATIC SUPPLY FAILURE CLOSE THE STOP VALVE 351B SELECT BY THE VALVE 5 D THE OPENING OPERATION AND ACTUATE THE HAND PUMP 5 P AT THE END OF THE OPENING OPERATION CLOSE THE VALVE 351A NOTE THE VALVE 5 D MUST BE IN REMOTE CONTROL POSITION AND THE STOP VALVES 351A AND 351B MUST BE OPEN TO ALLOW THE OPERATION WITH PNEUMATIC SUPPLY 1 SINGLE ACTING SPRING RETURN PNEUMATIC...

Страница 16: ...SUPPLY LINE EMERGENCY MANUAL OPERATION IN CASE OF PNEUMATIC SUPPLY FAILURE SELECT BY THE VALVE 5 D THE OPENING OPERATION AND ACTUATE THE HAND PUMP 5 P AT THE END OF THE OPENING OPERATION CLOSE THE VALVE 351 NOTE THE VALVE 5 D MUST BE IN REMOTE CONTROL POSITION AND THE STOP VALVES 351 AND MUST BE OPEN TO ALLOW THE OPERATION WITH PNEUMATIC SUPPLY 1 SINGLE ACTING SPRING RETURN PNEUMATIC LINEAR ACTUAT...

Страница 17: ...CY MANUAL OPERATION IN CASE OF PNEUMATIC SUPPLY FAILURE CLOSE THE STOP VALVE 351B SELECT BY THE VALVE 5 D THE CLOSING OPERATION AND ACTUATE THE HAND PUMP 5 P AT THE END OF THE CLOSING OPERATION CLOSE THE VALVE 351A NOTE THE VALVE 5 D MUST BE IN REMOTE CONTROL POSITION AND THE STOP VALVES 351A AND 351B MUST BE OPEN TO ALLOW THE OPERATION WITH PNEUMATIC SUPPLY 1 SINGLE ACTING SPRING RETURN PNEUMATIC...

Страница 18: ...C SUPPLY LINE EMERGENCY MANUAL OPERATION IN CASE OF PNEUMATIC SUPPLY FAILURE SELECT BY THE VALVE 5 D THE CLOSING OPERATION AND ACTUATE THE HAND PUMP 5 P AT THE END OF THE CLOSING OPERATION CLOSE THE VALVE 351 NOTE THE VALVE 5 D MUST BE IN REMOTE CONTROL POSITION AND THE STOP VALVES 351 MUST BE OPEN TO ALLOW THE OPERATION WITH PNEUMATIC SUPPLY 1 SINGLE ACTING SPRING RETURN PNEUMATIC LINEAR ACTUATOR...

Страница 19: ...LY LINE AND OPEN BOTH STOP VALVES 351A B SELECT BY THE VALVE D THE OPENING OR CLOSING OPERATION AND ACTUATE THE HAND PUMP P CLOSE THE STOP VALVE 351A TO KEEP THE ACTUATOR IN OPEN POSITION OR CLOSE THE STOP VALVE 351B TO KEEP THE ACTUATOR IN CLOSED POSITION NOTE THE VALVE D MUST BE IN REMOTE CONTROL POSITION AND THE STOP VALVES 351A AND 351B MUST BE OPEN TO ALLOW THE OPERATION WITH GAS SUPPLY 1 DOU...

Страница 20: ...ND OPEN BOTH STOP VALVES 351C AND OPEN BOTH STOP VALVES 351A B SELECT BY THE VALVE D THE OPENING OR CLOSING OPERATION AND ACTUATE THE HAND PUMP P CLOSE THE STOP VALVE 351A TO KEEP THE ACTUATOR IN OPEN POSITION OR CLOSE THE STOP VALVE 351B TO KEEP THE ACTUATOR IN CLOSED POSITION NOTE THE VALVE D MUST BE IN REMOTE CONTROL POSITION AND THE STOP VALVES 351 MUST BE OPEN TO ALLOW THE OPERATION WITH GAS ...

Страница 21: ... BOTH STOP VALVES 351A B AND CLOSE THE STOP VALVES 351C D E F G H SELECT BY THE VALVE D THE OPENING OR CLOSING OPERATION AND ACTUATE THE HAND PUMP P CLOSE THE STOP VALVE 351A TO KEEP THE ACTUATOR IN OPEN POSITION OR CLOSE THE STOP VALVE 351B TO KEEP THE ACTUATOR IN CLOSED POSITION NOTE THE VALVE D MUST BE IN REMOTE CONTROL POSITION AND THE STOP VALVES 351 MUST BE OPEN TO ALLOW THE OPERATION WITH G...

Страница 22: ...ng possibly damage valve stem threads or bend the valve stem Be sure the valve stem is pushed down into the valve body away from the actuator while mounting To avoid damaging the valve plug seating surfaces do not rotate the valve plug while it is seated Also avoid damage to the valve plug stem by careful use of tools during travel adjustment 1 Using the given lifting eye bolts key 2215 hoist the ...

Страница 23: ...ur process or safety engineer for any additional measures that must be taken to protect against process media Instructions are given below for complete disassembly of the actuator seal replacement and O ring replacement When inspection or repair is necessary disassemble the actuator only as far as is required to accomplish the job Key numbers referenced in the following steps are shown in figures ...

Страница 24: ...der key 2209 from the head flange key 2201 For a partial replacement of the pneumatic cylinder seals namely to replace all the seals with the exception of the head flange seal key 2102 2107 and 2202 proceed to the Replacing Pneumatic Cylinder Seals section For complete total replacement of the pneumatic cylinder seals namely to replace all the seals the pneumatic cylinder disassembly procedure pro...

Страница 25: ...iston outside seal key 2208 scraper ring key 2102 washer key 2106 gasket key 2107 O ring key 2222 only for with manual handpump 1 Thoroughly clean the slots and housings of seals and sliding ring lubricate with protective oil or with a thin film of grease Inspect all parts including the piston rod key 2350 and cylinder tube key 2209 for damage and wear 2 Put the seals and sliding ring accurately i...

Страница 26: ... Figure 20 Typical Sectional View of 785C Spring Return Actuator Pneumatic Cylinder Seals NOTE KEY 2222 PART NOT SHOWN ACTUATOR WITH HANDPUMP ONLY 2107 2102 2202 2106 2204 2207 2208 2204 Figure 21 Threaded Holes in Pneumatic Cylinder THREAD HOLE THREAD HOLE ...

Страница 27: ...put it back in place by performing the operations below a Thoroughly clean the cylinder key 2209 inner surface and ensure the surface nor the chamfers are damaged b Lubricate the entire inner surface and chamfers c Slide the cylinder key 2209 onto the piston taking care not to damage the cylinder inner surface piston seal key 2208 gasket key 2207 and the head flange seal key 2204 d The full mating...

Страница 28: ...RER AGIP TYPE GR MU EP2 NLGI GRADE 2 WORKED PENETRATION DMM 280 DROPPING POINT ASTM 5C 185 ISO GRADE X2 EQUIVALENT GREASE ESSO BEACON EP2 BP GREASE LTX2 SHELL ALVANIA GREASE R2 ARAL ARALUB HL2 CHEVRON DURALITH GREASE EP2 CHEVRON SPHEEROL AP2 TEXACO MULTIFAK EP2 MOBILPLEX 47 PETROMIN GREASE EP2 Check and Restore Manual Handpump Hydraulic Oil Level During the actuator operation the oil tank has to b...

Страница 29: ...ey 2751 9 and tighten the plug key 2751 27 onto the plate key 2751 11 Pour the new oil into the tank through the dipstick hole on the cover key 2751 22 4 Reinstall and tighten the dipstick key 2751 1 7 5 If the oil in the tank is below the minimum level mark figure 22 add additional oil per table 12 Figure 22 Hydraulic Manual Handpump Dipstick Oil Level Mark MINIMUM LEVEL OR LOWER NOTCH MAXIMUM LE...

Страница 30: ...2708 of the end flange key 2712 For replacement of piston rod seal ring key 2705 and of the O ring key 2704 proceed as follows 1 Remove the existing PTFE seal ring key 2705 and the O ring key 2704 from their groove 2 Clean the groove carefully and lubricate 3 Assemble the new O ring key 2704 into its groove and lubricate 4 Assemble the new PTFE seal ring key 2705 into the flange groove on the rubb...

Страница 31: ...icate the tube inside surface and the bevels at the ends 5 Slide the tube onto the piston taking care not to damage the PTFE seal ring key 2710 The tube bevel has to smoothly compress the seal ring Take care to not damage the head flange O ring key 2708 6 Assemble the end flange key 2708 by centering it on the inside diameter of the tube taking care not to damage the O ring key 2708 7 Assemble the...

Страница 32: ...5 M16x2 108 163 6 76 3 2x M16x2 635 635 253 60 7 M16x2 126 4 192 1 92 5 3x M16x2 685 685 269 5 67 3 M16x2 139 7 251 8 117 7 2x M16x2 1 The cylinder DN the travel and the available manual override can be read from the model string e g PLAS 100K 335 13K 115 CL SE F2 0000 280 203 0 280 296 19 3 M12x1 75 19 9 29 7 14 7 2x M10x1 5 335 335 296 30 8 M12x1 75 29 4 39 7 21 3 2x M10x1 5 385 385 296 30 8 M12...

Страница 33: ...63 6 76 3 2x M16x2 635 635 474 113 8 M16x2 126 4 192 1 92 5 3x M16x2 685 685 490 5 122 5 M16x2 139 7 251 8 117 7 2x M16x2 1 The cylinder DN the travel and the available manual override can be read from the model string e g PLAS 100K 335 13K 318 CL SE F2 0000 280 406 0 280 500 32 1 M12x1 75 19 9 29 7 14 7 2x M10x1 5 335 335 500 43 8 M12x1 75 29 4 39 7 21 3 2x M10x1 5 385 385 500 52 M12x1 75 37 4 50...

Страница 34: ...163 6 76 3 2x M16x2 635 635 677 162 6 M16x2 126 4 192 1 92 5 3x M16x2 685 685 693 5 173 2 M16x2 139 7 251 8 117 7 2x M16x2 1 The cylinder DN the travel and the available manual override can be read from the model string e g PLAS 100K 335 13K 521 CL SE F2 0000 280 610 0 280 703 45 1 M12x1 75 19 9 29 7 14 7 2x M10x1 5 335 335 703 61 5 M12x1 75 29 4 39 7 21 3 2x M10x1 5 385 385 703 73 2 M12x1 75 37 4...

Страница 35: ...ulic cylinder bypass stop valve per the correct schematic in figure 11 13 16 or 17 Flow restriction in hand pump or hydraulic system affecting actuator stroking speed Contact your Emerson sales office to upgrade to 785C Fast Stroke MHQ handpump type 1 or type 2 Flow restriction in pneumatic system affecting actuator stroking speed Contact your Emerson sales office to investigate the stroking speed...

Страница 36: ...85C Single Acting Spring Return Spring Restricts Spare Part Kits CYLINDER SIZE MAXIMUM TRAVEL INCHES SPRING MATERIAL NBR Standard Temperature Flurosilicone Low Temperature Parts Kit Number 335 4 F1 R785X335C12 R785X335C32 385 F1 R785X385C12 R785X385C32 F2 435 F1 R785X435C22 R785X435C52 F2 R785X435C12 R785X435C42 485 F1 R785X485C12 R785X485C32 F2 535 F1 R785X535C72 R785X535C92 F2 R785X535C12 R785X5...

Страница 37: ...2 F2 485 F1 R785X485C12 R785X485C32 F2 535 F1 R785X535C12 R785X535C32 F2 R785X535C22 R785X535C42 585 F1 R785X585C12 R785X585C32 F2 R785X585C22 R785X585C42 635 F1 R785X635C22 R785X635C42 F2 685 F1 R785X685C22 R785X685C42 F2 F3 335 8 F1 R785X335C22 R785X335C42 385 F1 R785X385C22 R785X385C42 F2 F3 R785X385C12 R785X385C32 435 F1 R785X435C32 R785X435C62 F2 F3 485 F1 R785X485C22 R785X485C42 F2 F3 535 F1...

Страница 38: ...C42 20K F1 21K F2 R785X385C12 R785X385C32 25K F1 435 4 16K F1 R785X435C12 R785X435C42 21K F1 25K F1 27K F1 R785X435C22 R785X435C52 22K F2 485 4 25K F1 R785X485C72 R785X485C82 33K F1 R785X485C12 R785X485C32 30K F2 535 4 34K F1 R785X535C22 R785X535C42 585 4 34K F1 R785X585C12 R785X585C32 685 4 38K F1 R785X685C12 R785X685C32 74k F1 R785X685C22 R785X685C42 83K F2 75K F3 280 8 7K F1 R785X280C32 R785X28...

Страница 39: ...85X435C52 485 12 23K F1 R785X485C12 R785X485C32 535 12 32K F1 R785X535C82 R785X535CA2 585 12 31K F1 R785X585C22 R785X585C42 685 12 35K F1 R785X685C82 R785X685CA2 435 16 18K F1 R785X435C22 R785X435C52 485 16 18K F1 R785X485C12 R785X485C32 535 16 29K F1 R785X535C82 R785X535CA2 585 16 26K F1 R785X585C22 R785X585C42 635 16 33K F1 R785X635C72 R785X635C92 685 16 33K F1 R785X685C72 R785X685C92 Table 18 7...

Страница 40: ... R785X385C12 R785X385C32 21K F2 24K F1 25K F1 435 4 16K F1 R785X435C12 R785X435C42 21K F1 25K F1 21K F2 R785X435C32 R785X435C62 36K F1 R785X435C22 R785X435C52 485 4 25K F1 R785X485C72 R785X485C82 37K F1 R785X485C22 R785X485C42 535 4 34K F1 R785X535C22 R785X535C42 58K F1 R785X535C82 R785X535CA2 67K F1 R785X535C72 R785X535C92 585 4 34K F1 R785X585C12 R785X585C32 65K F1 36K F1 R785X585C72 R785X585C82...

Страница 41: ... R785X535C92 25K F1 R785X535C22 R785X535C42 34K F1 585 8 34K F1 R785X585C12 R785X585C32 635 8 19K F1 R785X635C22 R785X635C42 38K F1 55K F1 67K F1 685 8 36K F1 R785X685C22 R785X685C42 8 38K F1 8 73K F1 8 81K F1 385 12 19K F1 R785X385C22 R785X385C42 435 12 20K F1 R785X435C22 R785X435C52 23K F1 485 12 23K F1 R785X485C12 R785X485C32 535 12 32K F1 R785X535C82 R785X535CA2 585 12 31K F1 R785X585C22 R785X...

Страница 42: ...IMUM TRAVEL INCHES MATERIAL NBR Standard Temperature Flurosilicone Low Temperature Parts Kit Number 280 4 8 12 16 20 24 R785X280M82 R785X280M72 335 R785X335M82 R785X335M72 385 R785X385M62 R785X385M52 435 R785X435M82 R785X435M72 485 R785X485M82 R785X485M72 535 R785X535M92 R785X535M82 585 R785X585M92 R785X585M82 635 R785X635MA2 R785X635M92 685 R785X685MA2 R785X685M92 Table 21 785C Spring Return Actu...

Страница 43: ...Wheel R785X335M42 R785X335M12 7K 2 F2 12K F1 8 7K F1 2 14K F1 Hand Wheel R785X335M52 R785X335M22 4 14K 2 F2 16K F1 16K F2 13K F2 21K F1 8 8K F1 8K 2 F2 9K 1 F1 12K F1 16K F1 16K F2 19K F1 21K 1 F1 335 8 8K 2 F1 Hand Wheel R785X335M62 R785X335M32 385 4 9K 2 F1 Hand Wheel R785X385M32 R785X385M12 9K 2 F2 16K F1 21K F2 24K 1 F1 25K F1 8 8K F1 16K F1 21K F1 21K F3 13K F1 17K F1 22K F1 385 2 15K F1 Hand...

Страница 44: ...435 2 12K 1 F1 Hand Pump R785X435M52 R785X435M22 4 12K 2 F1 27K F1 22K F2 36K 1 F1 8 35K 1 F1 12 20K 1 F1 23K F1 16 18K F1 435 4 21K 1 F2 Hand Pump R785X435M62 R785X435M32 8 11K 2 F1 12K F1 27K F1 17K F2 16K F1 16K F3 21K F1 25K F1 485 2 33K 1 F1 Hand Pump R785X485M42 R785X485M12 4 25K F1 485 4 13K 2 F1 Hand Pump R785X485M52 R785X485M22 13K 2 F2 33K F1 30K F2 8 25K F1 12 23K F1 16 18K F1 485 4 37K...

Страница 45: ...85X535M32 67K 1 F1 8 19K F1 535 4 58K 1 F1 Hand Pump R785X535M72 R785X535MA2 12 32K F1 16 29K F1 585 2 24K 1 F1 Hand Pump R785X585M52 R785X585M12 4 34K F1 51K 1 F1 65K 1 F1 8 34K F1 585 4 45K 1 F2 Hand Pump R785X585M62 R785X585M22 8 16K 2 F1 49K 1 F1 33K 1 F2 32K F3 12 31K F1 16 26K F1 585 4 16K 2 F1 Hand Pump R785X585M72 R785X585M42 16K 2 F2 36K 1 F1 635 2 33K 1 F1 Hand Pump R785X635M52 R785X635M...

Страница 46: ... Parts Kit Number 635 16 33K F1 Hand Pump R785X635M82 R785X635M42 685 4 21K 2 F1 Hand Pump R785X685M52 R785X685M12 38K F1 685 12 35K F1 Hand Pump R785X685M62 R785X685M22 685 4 21K 2 F2 Hand Pump R785X685M72 R785X685M32 74K F1 85K 1 F2 75K F3 83K 2 F2 8 21K 2 F1 38K F1 51K F1 49K F2 64K F3 36K 1 F1 73K 1 F1 81K 1 F1 12 49K 1 F1 685 16 33K F1 Hand Pump R785X685M82 R785X685M42 Note 1 Only available f...

Страница 47: ...ket 2108 Washer 2109 Nut 2110 Screw 2200 Pneumatic Cylinder Assembly figure 34 35 and 36 Key Description 2201 Head Flange 2202 O Ring 2203 Bushing 2204 O Ring 2205 Washer 2206 Piston 2207 Guide Sliding Ring Piston 2208 O Ring 2209 Cylinder Tube 2210 End Flange 2211 Washer 2212 Nut 2213 Tie Rod 2214 Washer 2215 Eyebolt 2216 Plug 2217 End Stroke 2218 Screw 2219 Hub 2220 Screw 2221 Plug 2222 O Ring 2...

Страница 48: ...2751 1 4 Relief Valve for Manual Operation Key Description 2751 1 5 Relief Valve Low 2751 1 6 Relief Valve High 2751 1 7 Oil Tank Dipstick 2751 2 Cap Nut 2751 3 Washer 2751 4 Hydraulic Tank 2751 6 O Ring 2751 7 Ball 2751 8 Spring 2751 9 Washer 2751 10 Screw 2751 11 Plate 2751 12 Flange 2751 13 Screw 2751 14 Lever 2751 15 Distributor 2751 16 O Ring 2751 17 O Ring 2751 18 Nozzle 2751 19 Screw 2751 2...

Страница 49: ...Nipple 27H2 Relief Valve 27H3 Tee Pipe Fitting 27H4 Stop Valve 27H5 Straight Fitting Male Connector 27H6 90 Elbows Fitting Unions Connector Key Description 27H7 90 Elbows Fitting Unions Connector 27H8 90 Elbows Fitting Unions Connector 27H9 Adapter Pipe Fitting 2786U Power Up Tube 2786D Power Down Tube 2787U Pilot Up Tube 2787D Pilot Down Tube 2790 MHQ Hydraulic Fitting and Tubing Kit figure 44 Ke...

Страница 50: ...4 Fisher 785C Double Acting Springless Actuator with Top Mounted Handwheel GH01816_B COMPONENT INCLUDES RECOMMENDED SPARE PART PARTS NOT SHOWN KEY 400 AND 500 ITEMS 4 5 6 NOT TO SCALE ITEMS 4 5 6 MIGHT BE USED FOR VARIOUS APPLICATIONS ITEMS 4 5 6 MIGHT BE USED FOR VARIOUS APPLICATIONS ...

Страница 51: ...Instruction Manual D104483X012 785C Actuator May 2022 51 Figure 25 Fisher 785C Double Acting Springless Actuator with Top Mounted Handwheel GH01816_B ...

Страница 52: ...5C Double Acting Springless Actuator with Side Mounted Handpump GH01791_B COMPONENT INCLUDES RECOMMENDED SPARE PART PARTS NOT SHOWN KEY 400 500 AND 600 ITEMS 4 5 6 MIGHT BE USED FOR VARIOUS APPLICATIONS ITEMS 4 5 6 MIGHT BE USED FOR VARIOUS APPLICATIONS ITEMS 4 5 6 NOT TO SCALE ...

Страница 53: ...Instruction Manual D104483X012 785C Actuator May 2022 53 Figure 27 Fisher 785C Double Acting Springless Actuator with Side Mounted Handpump GH01791_B ...

Страница 54: ...785C Single Acting Spring Return Actuator without Manual Override GH01864_B COMPONENT INCLUDES RECOMMENDED SPARE PART PARTS NOT SHOWN KEY 400 AND 500 ITEMS 4 5 6 MIGHT BE USED FOR VARIOUS APPLICATIONS ITEMS 4 5 6 MIGHT BE USED FOR VARIOUS APPLICATIONS ITEMS 4 5 6 NOT TO SCALE ...

Страница 55: ...Instruction Manual D104483X012 785C Actuator May 2022 55 Figure 29 Fisher 785C Single Acting Spring Return Actuator without Manual Override GH01864_B ...

Страница 56: ... 6 ARE NOT TO SCALE MULTIPLE POSITIONS SHOWING ITEMS 4 5 6 MIGHT BE USED FOR VARIOUS APPLICATIONS COMPONENT INCLUDES RECOMMENDED SPARE PART PARTS NOT SHOWN KEY 400 500 600 GH14077 ITEMS 4 5 6 ARE NOT TO SCALE ITEMS 4 5 6 MIGHT BE USED FOR VARIOUS APPLICATIONS COMPONENT INCLUDES RECOMMENDED SPARE PART PARTS NOT SHOWN KEY 400 500 Figure 31 Fisher 785C Spring Return Assembly with Top Mounted Handpump...

Страница 57: ...ARTS NOT SHOWN KEY 400 500 ITEMS 4 12 ARE NOT TO SCALE ITEMS 4 12 MIGHT BE USED FOR VARIOUS APPLICATIONS GH14084 COMPONENT INCLUDES RECOMMENDED SPARE PART PARTS NOT SHOWN KEY 400 500 600 ITEMS 4 12 ARE NOT TO SCALE ITEMS 4 12 MIGHT BE USED FOR VARIOUS APPLICATIONS MULTIPLE POSITIONS SHOWING Figure 33 Fisher 785C Springless Assembly with Fast Stroke Side Mounted Handpump MHQ ...

Страница 58: ...ator May 2022 58 Figure 34 Pneumatic Cylinder Assembly of Fisher 785C Actuator without Manual Override Springless or Spring Return Single or Double Acting GH01624_B COMPONENT INCLUDES RECOMMENDED SPARE PART ITEM NOT REQUIRED FOR THIS ASSEMBLY ...

Страница 59: ...or May 2022 59 Figure 35 Pneumatic Cylinder Assembly of Fisher 785C Actuator with Top Mounted Handwheel Springless or Spring Return Single or Double Acting GH01756_b COMPONENT INCLUDES RECOMMENDED SPARE PART ITEM NOT REQUIRED FOR THIS ASSEMBLY ...

Страница 60: ...der Assembly of Fisher 785C Actuator with Side Mounted Handpump Springless or Spring Return Single or Double Acting GH01644_A COMPONENT INCLUDES RECOMMENDED SPARE PART Figure 37 Yoke Spool Assembly of Fisher 785C Actuator Springless or Spring Return Single or Double Acting GH01609_A ...

Страница 61: ...ruction Manual D104483X012 785C Actuator May 2022 61 Figure 38 Spring Can Spring Cartridge Fisher 785C Single Acting Spring Return Actuator Single or Double Acting GH01764_A A B A B SECTION A A SECTION B B ...

Страница 62: ...p Mounted Handwheel of Fisher 785C Actuator Springless or Spring Return Single or Double Acting GH01762_B COMPONENT INCLUDES RECOMMENDED SPARE PART PARTS NOT SHOWN 2609 Figure 40 Handwheel MHW Unit Key 2601 SECTION A A DETAIL B DETAIL B GH14287 RECOMMENDED SPARE PART A A ...

Страница 63: ...5C Actuator May 2022 63 Figure 41 Side Mounted Handpump Hydraulic Cylinder Assembly of Fisher 785C Actuator Springless or Spring Return Single or Double Acting GH01653_A A A DETAIL C DETAIL C SECTION B B DETAIL B SECTION A A SCALE 1 1 ...

Страница 64: ...Instruction Manual D104483X012 785C Actuator May 2022 64 Figure 42 Side Mounted Handpump Support of Fisher 785C Actuator Springless or Spring Return Single or Double Acting GH01747_A ...

Страница 65: ...Instruction Manual D104483X012 785C Actuator May 2022 65 Figure 43 MHP Hydraulic Fittings GH14070 GH14490 ...

Страница 66: ...Instruction Manual D104483X012 785C Actuator May 2022 66 Figure 44 MHQ Hydraulic Fitting Tubes and Stop Valve GH14073 ...

Страница 67: ...2 785C Actuator May 2022 67 Figure 45 Side Mounted Handpump Hydraulic Control Unit of Fisher 785C Actuator Springless or Spring Return Single or Double Acting GH0172_9 COMPONENT INCLUDES RECOMMENDED SPARE PART PARTS NOT SHOWN 2759 ...

Страница 68: ... 2022 68 Figure 46 Handpump MHP MHQ Hydraulic Control Unit Key 2751 GH14297 RECOMMENDED SPARE PART CHECK VALVE RELIEF VALVE FOR MANUAL OPERATION RELIEF VALVE FOR AUTOMATIC OPERATION FLOW REGULATOR OIL TANK RELIEF VALVE RELIEF VALVE OIL TANK DIPSTICK ...

Страница 69: ...Instruction Manual D104483X012 785C Actuator May 2022 69 Figure 47 MHP MHQ Handpump Key 2752 GH14482 RECOMMENDED SPARE PART ...

Страница 70: ...lve Stem Connector Assembly of Fisher 785C Actuator Springless or Spring Return Single or Double Acting GH01638_A Figure 49 Mounting Bracket Assembly of Fisher 785C Actuator Springless or Spring Return Single or Double Acting GH01643_A QTY 2 5 16 18 UNC QTY 2 5 16 18 UNC ...

Страница 71: ...01658_A NOTE UPPER PORTION LOCATES BETWEEN CYLINDER AND SPRING CAN LOWER PORTION LOCATES BETWEEN SPRING CAN AND YOKE COMPONENT INCLUDES RECOMMENDED SPARE PART Figure 52 Fisher 785C Springless Actuator Repair Kit Double Acting GH01657_A COMPONENT INCLUDES RECOMMENDED SPARE PART Figure 53 Side Mounted Handpump Hydraulic Cylinder Kit of Fisher 785C Actuator Springless or Spring Return Single or Doubl...

Страница 72: ...ilable upon request We reserve the right to modify or improve the designs or specifications of such products at any time without notice E 2019 2022 Fisher Controls International LLC All rights reserved Fisher FIELDVUE and easy e 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 ...

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