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Types 585C and 585CR
April 2000
Errata Sheetfor
Type 585C and 585CR Actuators Instruction Manual,Form 5353, March 1999
WARNING
To avoid loss of control of processfluid and subsequent personal injury orproperty damage caused by bursting ofpressure-retaining parts, be sure thecylinder pressure does not exceed 80psig in high cycle-rate, fast stroking
speed, three-way valve applications.
In three-way valve applications where the actuatorfully strokes at a frequency of once per minute or fast-
er, and the stroking speed is rapid (less than 0.5 sec-onds per stroke), there is a possibility that the stemcan fracture at the plug if the actuator cylinder pres-sure is greater than 80 psig. This can cause loss ofcontrol of process fluid and further damage to the ac-tuator. Consideration should be given to the use ofhigh-strength, fatigue-resistant stem materials inthese applications.
This problem appears to be application sensitive, in
particular, water quench applications in steel millswhere stroking speed and cylinder pressure are high.There have been no reported occurrences of this typeof failure in other applications.
For information, contact Fisher Controls:Marshalltown, Iowa 50158 USACernay 68700 FranceSao Paulo 05424 BrazilSingapore 128461
Fisher Controls International, Inc. 2000; All Rights ReservedFisher and Fisher-Rosemount are marks owned by Fisher Controls International, Inc. or Fisher-Rosemount Systems, Inc.
Printed in U.S.A.
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Type 585C and 585CR Actuators
Contents
Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Scope of Manual 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .Description 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Specifications 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Actuator Mounting 6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handwheel Adjustment 7. . . . . . . . . . . . . . . . . .
Maintenance 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Replacing Handwheel Housing O-Ring or Thrust
Bearings 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Replacing Seals, Changing Action, or Changing
Bias Spring(s) 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Ordering 10. . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Kits 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction
Scope of Manual
This instruction manual provides information on instal-lation, maintenance, and parts ordering for the Type585C and 585CR piston actuators. Refer to separateinstruction manuals for information about other equip-ment and accessories used with these actuators.
Only persons qualified through training or experienceshould install, operate, and maintain these actuators.If you have any questions about these instructions,contact your Fisher Controls sales office or sales rep-resentative before proceeding.
Figure 1. Type 585C Actuator Mounted on Design CP Valve
W6907/IL
Description
The compact Type 585C and 585CR pneumaticspring-and-piston actuators (figure 1) provide accuratethrottling or on-off control of sliding-stem valves. Bothtypes have a double-acting cylinder requiring air pres-sure for operation. The Type 585C actuator with biasspring action fully retracts the piston stem upon loss ofcylinder pressure, while the Type 585CR actuator withbias spring action fully extends the piston stem uponloss of cylinder pressure. No additional parts are re-quired to convert from one actuator type to the other.Both actuators are available with or without a top-mounted handwheel.
Instruction ManualForm 5353March 1999 Types 585C and 585CR
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Types 585C and 585CR
2
Table 1. Specifications
Actuator Sizes
25, and 50
Maximum Allowable Cylinder Pressure(1)
150 psig (10.3 bar)
Yoke Boss and Valve Stem Connection Diameters
Size 25: 2-1/8 inch (54 mm) yoke boss with3/8-inch (9.5 mm) diameter valve stem connectionor 2-13/16 inch (71 mm) yoke boss with 1/2-inch(12.7 mm) diameter valve stem connectionSize 50: 2-13/16 inch (71 mm) yoke boss with1/2-inch (12.7 mm) diameter valve stem connectionor 3-9/16 inch (90 mm) yoke boss with 3/4-inch(19.1 mm) diameter valve stem connection
Travel Capabilities
See tables 2 or 3
Thrust Capabilities
See tables 2, 3, 4, and 5
Material Temperature Capabilities(1)
40 to 180F (40 to 82C), standard40 to 250F (40 to 121C), optional
Piston AreaSize 25:26 in.2(168 cm2)Size 50:47 in.2(303 cm2)
Pressure Connections
Size 25: 1/4 inch NPT female (standard), or 3/8 inch NPT female (optional)Size 50: 1/4 inch NPT female (standard), or 1/2 inch NPT female (optional)
Approximate Weights (less positioner and hand-wheel)
Size 25:2-1/8 inch yoke boss, 16 pounds (7 kg)2-13/16 inch yoke boss, 17 pounds (8 kg)Size 50:2-13/16 inch yoke boss, 45 pounds (20 kg)3-9/16 inch yoke boss, 48 pounds (22 kg)
1. The pressure/temperature limits in this manual and any applicable code or standard limitation must not be exceeded.
Specifications
Specifications for the Type 585C and 585CR pistonactuators are given in table 1. Some specifications foran individual actuator as it originally comes from thefactory are stamped on a nameplate attached to theyoke.
Installation
WARNING
To avoid personal injury or propertydamage caused by bursting of pressure-retaining parts, be certain the cylinderpressure does not exceed the limitslisted in table 1. Use pressure-limiting orpressure-relieving devices to preventcylinder pressure from exceeding theselimits.
A Type 585C or 585CR actuator is normally shippedmounted on a valve. Refer to the appropriate valveinstruction manual when installing the valve in thepipeline. If necessary to mount a separately shippedactuator on a valve, perform the procedures describedin the Actuator Mountingportion of this section.
WARNING
Dropping the actuator and any attachedaccessories and/or valve may cause per-sonal injury and/or equipment damage.For all mounting procedures use an ad-equately sized chain, sling, hoist, orcrane to handle the actuator and any at-tached accessories and/or valve. Usecaution during lifting and handling toprevent slippage, swinging, faultyequipment connections, or suddenshock loads.
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Types 585C and 585CR
3
Table 2. Type 585C Actuator Thrust Capabilities, U.S. Units
ACTU-SPRING
THRUST W/SPRING
THRUST W/
NET THRUST FOR TYPE 585C WITH ACTUATOR STEM FULLYEXTENDED AT FULL TRAVEL SPRINGS
ACTU-ATOR
SPRINGRATE,
ATOR
STEM
ACTUATOR
ACTUATOR Supply Pressure, psig(1)USED,
BY PART
SIZE
,
lb/in TRAVEL,STEM
RETRACTED,
STEM
EXTENDED, 40 50 60 70 80 90 100 110 125 150
NUMBER
INCHES,
POUNDS,
POUNDS Force, Pounds(AND COLOR)
0 All 0 0 1040 1300 1560 1820 2080 2340 2600 2860 3250 3900Springs Not
Used
200
9/16
3/4
7/8
1-1/8
200
200
200
200
313
350
375
425
730
690
660
610
990
950
920
870
1250
1210
1180
1130
1510
1470
1440
1390
1760
1730
1700
1650
2020
1990
1960
1910
2280
2250
2220
2170
2540
2510
2480
2430
2930
2900
2870
2820
3580355035203470
13B9260X012
(Gold)
400
9/16
3/4
7/8
1-1/8
400
400
400
400
625
700
750
850
410
340
290
190
670
600
550
450
930
860
810
710
1190
1120
1070
970
1450
1380
1330
1230
1710
1640
1590
1490
1970
1900
1850
1750
2230
2160
2110
2010
2620
2550
2500
2400
3270320031503050
13B9261X012
(Light Green)
25 500
9/16
3/4
7/8
1-1/8
500
500
500
500
781
875
938
1063
260
160
100
X
520
420
360
240
780
680
620
500
1040
940
880
760
1300
1200
1140
1010
1560
1460
1400
1270
1820
1720
1660
1530
2080
1980
1920
1790
2460
2370
2310
2180
3110302029602830
13B9259X012
(White)
700
9/16
3/4
7/81-1/8
700
700
700700
1094
1225
13131488
X
X
XX
200
70
X
X
460
330
25070
720
590
510330
980
850
760590
1240
1110
1020850
1500
1370
12801110
1760
1630
15401370
2150
2020
19301760
28002670
25802410
13B9260X012
&
13B9259X012
(Gold &
White)
900
9/16
3/4
7/8
1-1/8
900
900
900
900
1406
1575
1688
1913
X
X
X
X
X
X
X
X
150
X
X
X
410
240
130
X
670
500
390
160
930
760
650
420
1190
1020
910
680
1450
1280
1170
940
1840
1670
1560
1330
2490232022101980
13B9261X012
&
13B9259X012
(Light Green
& White)
0 All 0 0 1890 2360 2830 3300 3770 4240 4710 5180 5890 7070Springs Not
Used
330
3/4
7/8
1-1/8
1-1/2
2
330
330
330
330
330
578
619
701
825
990
1310
1270
1180
1060
900
1780
1740
1660
1530
1370
2250
2210
2130
2000
1840
2720
2680
2600
2470
2310
3190
3150
3070
2950
2780
3660
3620
3540
3420
3250
4140
4090
4010
3890
3720
4610
4570
4480
4360
4190
5310
5270
5190
5070
4900
64906450637062506080
18A0621X012
(Pink)
600
3/4
7/81-1/8
1-1/2
2
600
600600
600
600
1050
11251275
1500
1800
840
760610
390
90
1310
12301080
860
560
1780
17001550
1330
1030
2250
21702020
1800
1500
2720
26502500
2270
1970
3190
31202970
2740
2440
3660
35903440
3210
2910
4130
40603910
3680
3380
4840
47704620
4390
4090
6020
5950580055705270
14B7136X012
(Light Blue)
50
930
3/4
7/8
1-1/8
1-1/2
2
930
930
930
930
930
1628
1744
1976
2325
2790
260
140
X
X
X
730
610
380
30
X
1200
1080
850
500
40
1670
1560
1320
970
510
2140
2030
1790
1450
980
2610
2500
2270
1920
1450
3090
2970
2740
2390
1920
3560
3440
3210
2860
2390
4260
4150
3910
3570
3100
54405330509047504280
18A0621X012
&
14B7136X012
(Pink & Light
Blue)
1550
3/4
7/8
1-1/8
1-1/2
2
1550
1550
1550
1550
1550
2710
2906
3294
3875
4650
X
X
X
X
X
X
X
X
X
X
110
X
X
X
X
580
385
X
X
X
1050
855
465
X
X
1520
1325
935
355
X
1990
1795
1405
825
50
2460
2265
1875
1295
520
3165
2970
2580
2000
1225
43454150376031802405
14B7137X012
(Green)
1880
3/4
7/8
1-1/8
1-1/2
2
1880
1880
1880
1880
1880
3290
3525
3995
4700
5640
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
100
X
X
X
X
570
340
X
X
X
1040
810
350
X
X
1410
1175
705
X
X
1880
1645
1175
470
X
2585
2350
1880
1175
235
37653530306023551415
18A0621X012
&
14B7137X012
(Pink &
Green)
XIndicates where the listed supply pressure is not sufficient to overcome the opposing bias spring effect.1. The maximum design pressure for size 25 and 50 actuator is 150 psig. Maximum rating for applications is 125 psig.
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Types 585C and 585CR
4
Table 3. Type 585C Actuator Thrust Capabilities, Metric Units
-
ACTU-ATOR
SPRINGTHRUST W/
SPRINGTHRUST W/
NET THRUST FOR TYPE 585C WITH ACTUATOR STEM FULLYEXTENDED AT FULL TRAVEL
SPRINGSUSED, BY PART
ACTU-ATOR
SPRINGRATE,
STEM
TRAVEL
ACTUATOR
STEM
ACTUATOR
STEMSupply Pressure, bar(1) NUMBER (AND
COLORSIZE
,
N/mm , mm RETRACTED, EXTENDED, 2.8 3.4 4.1 4.8 5.5 6.2 6.9 7.6 8.6 10.3, ,N
,N Force, N
0All 0 0 4626 5783 6939 8096 9252 10,409 11,565 12,722 14,457 17,348 Springs Not
Used
35.0
14.3
19.1
22.2
28.6
890
890
890
890
1393
1558
1669
1891
3247
3069
2936
2713
4404
4226
4092
3870
5560
5382
5249
5026
6717
6539
6405
6183
7829
7695
7562
7340
8985
8852
8718
8496
10,142
10,008
9875
9653
11,298
11,165
11,032
10,809
13,033
12,900
12,766
12,544
15,925
15,79115,65815,435
13B9260X012
(Gold)
70.1
14.3
19.1
22.2
28.6
1780
1780
1780
1780
2781
3115
3338
3783
1824
1512
1290
845
2980
2669
2447
2002
4137
3825
3603
3158
5293
4982
4760
4315
6450
6139
5916
5471
7606
7295
7073
6628
8763
8452
8229
7784
9919
9608
9386
8941
11,654
11,343
11,121
10,676
14,546
14,23414,012
13,567
13B9261X012
(Light Green)
2587.6
14.3
19.1
22.2
28.6
2225
2225
2225
2225
3475
3894
4174
4730
1156
712
445
X
2313
1868
1601
1068
3470
3025
2758
2224
4626
4181
3914
3381
5783
5338
5071
4493
6939
6494
6227
5649
8096
7651
7384
6806
9252
8807
8541
7962
10,943
10,542
10,275
9697
13,83413,43413,167
12,588
13B9259X012
(White)
122.6
14.3
19.1
22.2
28.6
3115
3115
3115
3115
4868
5451
5843
6622
X
X
X
X
890
311
X
X
2046
1468
1112
311
3203
2624
2269
1468
4359
3781
3381
2624
5516
4938
4537
3781
6672
6094
5694
4938
7829
7251
6850
6094
9564
8985
8585
7829
12,45511,87711,476
10,720
13B9260X012
&
13B9259X012
(Gold & White)
157.7
14.3
19.1
22.2
28.6
4005
4005
4005
4005
6257
7009
7512
8513
X
X
X
X
X
X
X
X
667
X
X
X
1824
1068
578
X
2980
2224
1735
712
4137
3381
2891
1868
5293
4537
4048
3025
6450
5694
5204
4181
8185
7428
6939
5916
11,076
10,3209831
8807
13B9261X012
&
13B9259X012
(Light Green
& White)
0All 0 0 8407 10,498 12,588 14,679 16,770 18,860 20,951 23,042 26,200 31,449 Springs Not
Used
57.8
19.1
22.2
28.6
38.1
50.8
1468
1468
1468
1468
1468
2571
2753
3118
3670
4404
5827
5649
5249
4715
4003
7918
7740
7384
6806
6094
10,008
9831
9475
8896
8185
12,099
11,921
11,565
10,987
10,275
14,190
14,012
13,656
13,122
12,366
16,280
16,102
15,747
15,213
14,457
18,416
18,193
17,837
17,303
16,547
20,506
20,328
19,928
19,394
18,638
23,620
23,442
23,086
22,552
21,796
28,869
28,69128,33527,80127,045
18A0621X012
(Pink)
105.1
19.1
22.2
28.6
38.1
50.8
2669
2669
2669
2669
2669
4671
5004
5671
6672
8007
3736
3381
2713
1735
400
5827
5471
4804
3825
2491
7918
7562
6895
5916
4582
10,008
9653
8985
8007
6672
12,099
11,788
11,121
10,097
8763
14,190
13,878
13,211
12,188
10,854
16,280
15,969
15,302
14,279
12,944
18,371
18,060
17,392
16,369
15,035
21,529
21,218
20,551
19,528
18,193
26,778
26,46725,800
24,777
23,442
14B7136X012
(Light Blue)
50162.9
19.1
22.2
28.6
38.1
50.8
4137
4137
4137
4137
4137
7242
7758
8790
10,342
12,410
1157
623
X
X
X
3247
2713
1690
133
X
5338
4804
3781
2224
178
7428
6939
5872
4315
2269
9519
9030
7962
6450
4359
11,610
11,121
10,097
8541
6450
13,745
13,211
12,188
10,631
8541
15,836
15,302
14,279
12,722
10,631
18,949
18,460
17,392
15,880
13,789
24,198
23,70922,64121,12919,038
18A0621X012
&
14B7136X012
(Pink &
Light Blue)
271.4
19.1
22.2
28.6
38.1
50.8
6894
6894
6894
6894
6894
12054
12925
14652
17236
20683
X
X
X
X
X
X
X
X
X
X
489
X
X
X
X
2580
1712
X
X
X
4670
3803
2086
X
X
6761
5894
4159
1579
X
8852
7984
6249
3670
222
10,942
10,075
8340
5760
2313
14,078
13,211
11,476
8896
5449
19,328
18,46016,725
14,14510,698
14B7137X012
(Green)
329.2
19.122.228.6
38.150.8
836283628362
83628362
146341567917770
2090625087
XXX
XX
XXX
XX
XXX
XX
XXX
XX
20911045X
XX
418131361045
XX
6272
5226
3136
X
X
836273175226
2091X
11,49810,453
8362
52261045
16,74815,70213,612
10,4766294
18A0621X012& 14B7137X012(Pink & Green)
XIndicates where the listed supply pressure is not sufficient to overcome the opposing bias spring effect.1. The maximum design pressure for size 25 and 50 actuator is 10.3 bar. Maximum rating for applications is 8.6 bar.
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Types 585C and 585CR
5
Table 4. Type 585CR Actuator Thrust Capabilities, U.S. Units
SPRING
SPRINGTHRUST W/
TOTAL THRUST FOR TYPE 585CR WITH ACTUATOR STEM FULLYEXTENDED
ACTUATORRATE,
ACTUATOR Supply Pressure, psig(1) SPRINGS USED,SIZE
,lb/in
STEMEXTENDED
40 50 60 70 80 90 100 110 120 125 150BY COLOR
,POUNDS Force, Pounds
0 0 1040 1300 1560 1820 2080 2340 2600 2860 3120 3250 3900
Springs
Not Used
200 200 1240 1500 1760 2020 2280 2540 2800 3060 3320 3450 X Gold
2400 400 1440 1700 1960 2220 2480 2740 3000 3260 3520 3650 X Light Green
25500 500 1540 1800 2060 2320 2580 2840 3100 3360 3620 3750 X White
700 700 1740 2000 2260 2520 2780 3040 3300 3560 3820 X X Gold & White
900 900 1940 2200 2460 2720 2980 3240 3500 3760 X X XLight Green
& White
0 0 1880 2350 2820 3290 3760 4230 4700 5170 5640 5875 7050Springs
Not Used
330 330 2210 2680 3150 3620 4090 4560 5030 5500 5970 6205 X Pink
50(3) 600 600 2480 2950 3420 3890 4360 4830 5300 5770 6240 6475 X Light Blue
930 930 2810 3280 3750 4220 4690 5160 5630 6100 6570 6805 X Pink & Light Blue
1550 1550 3430 3900 4370 4840 5310 5780 6250 6720 X X X Green
1880 1880 3760 4230 4700 5170 5640 6110 6580 7050 X X X Pink & Green
XIndicates where the listed supply pressure is not sufficient to overcome the opposing bias spring effect.1. The maximum design pressure for size 25 and 50 actuator is 150 psig.2. Maximum thrust is 3900 lbs.3. Maximum thrust is 7050 lbs.
Table 5. Type 585CR Actuator Thrust Capabilities, Metric Units
SPRING
SPRINGTHRUST W/
TOTAL THRUST FOR TYPE 585CR WITH ACTUATOR STEM FULLYEXTENDED
SPRINGSACTUATOR
RATE,ACTUATOR Supply Pressure, bar(1) USED, BY
SIZE,
N/mmSTEM
EXTENDED2.8 3.4 4.1 4.8 5.5 6.2 6.9 7.6 8.3 8.6 10.3
,COLOR
,N Force, N
0 0 4626 5782 6939 8095 9251 10408 11565 12721 13877 14456 17347Springs
Not Used
35.0 890 5516 6672 7828 8985 10141 11298 12454 13610 14767 15346 X Gold
70.0 1780 6405 7562 8718 9874 11031 12188 13344 14500 15657 16235 X Light Green
25(2) 87.6 2225 6850 8006 9163 10319 11476 12632 13789 14945 16102 16680 X White
122.6 3115 7740 8896 10052 11209 12365 13655 14678 15835 16991 X XGold &
White
157.6 4005 8629 9786 10942 12099 13255 14412 15568 16724 X X XLight Green
& White
0 0 8362 10452 12543 14634 13724 18815 20906 22996 25087 26132 31358Springs
Not Used
57.8 1468 9830 11921 14011 16102 18192 20282 22373 24464 26555 27600 X Pink
105.1 2670 11031 13122 15212 17303 19393 21484 23574 25665 27756 28800 X Light Blue
50(3)162.8 4135 12499 14589 16680 18770 20861 22952 25042 27133 29223 30269 X
Pink & Light
Blue
271.4 6894 15256 17347 19438 21528 23619 25709 27800 29891 X X X Green
329.2 8362 16724 18815 20906 22996 25087 27177 29268 31358 X X X
Pink &
GreenXIndicates where the listed supply pressure is not sufficient to overcome the opposing bias spring effect.
1. The maximum design pressure for size 25 and 50 actuator is 10.3 bar.2. Maximum thrust is 17347 N.3. Maximum thrust is 31358 N.
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Actuator Mounting
The following procedure describes how to mount aType 585C or 585CR actuator on a push-down-to-close valve so that the piston stem to valve plug stemconnection allows full travel and proper shutoff. Keynumbers referenced in the following steps are shown
in figures 2 through 6.
1. If not already removed, remove the stem connector(key 12) by loosening the cap screws (key 14).
2. Thread the stem connector nuts (keys 13 and 15)onto the valve stem, and run the nuts to the bottom ofthe valve stem threads.
3. Push the valve plug stem until the valve plug isclosed for push-down-to-close valve plug action.
4. Place the actuator on the bonnet of the valve andsecure the actuator tightly to the bonnet with the yokelocknut.
CAUTION
In the following procedure, do not rotatethe valve plug while it is seated sincethis may cause damage to the seatingsurface and thereby allow excessiveleakage. Also, during adjustment, usetools carefully to avoid damaging thevalve plug stem. A damaged valve plugstem could cut the packing and allowleakage.
Note
When using an actuator with handwheelin the following step to stroke the valveplug, be sure the bypass valve (key 66,figure 3 or 5) is open. Rotating the hand-wheel (key 47, figure 3 or 5) clockwiseextends the actuator stem (key 10); ro-tating the handwheel counterclockwiseretracts the actuator stem.
5. Perform one of the following procedures (a or b asappropriate):
a. For a Type 585C actuator (figure 2) withpush-down-to-close valve, manually move thevalve plug to the seated position. Rotate the hand-wheel or apply pressure to the pressure connectionin the cylinder (key 1) until the piston (key 3) andactuator stem (key 10) move down the specifiedtravel. Run the stem connector nut (key 13) up onthe valve stem until it contacts the actuator stem.Back off the handwheel or reduce cylinder pressure
enough to move the actuator stem away from thestem connector nut approximately 1/4-inch. Rotatethe stem connector nut, so it moves up the valvestem, an additional two turns. Rotate the hand-wheel or apply pressure to the pressure connectionin the cylinder (key 1) until the actuator stem (key10) again contacts the stem connector nut. Be sure
the flats on the actuator stem are perpendicular tothe scale indicator web on the yoke (key 6). Adjustthe stem connector nut as necessary, so that theflats on the nut and the actuator stem are parallel.Clamp the actuator stem and stem connector nuttogether with the stem connector (key 12) and thetwo cap screws and hex nuts (keys 14 and 23).Run the hex nut (key 15) up the valve stem andtighten against the stem connector nut (key 13).
b. For a Type 585CR actuator (figure 4) withpush-down-to-close valve, manually move thevalve plug to the seated position. Run the stemconnector nut (key 13) up the valve stem until itcontacts the actuator stem (key 10). Rotate thehandwheel or apply pressure to the pressure con-nection in the yoke (key 6) to move the actuatorstem (key 10) approximately 1/4-inch away fromthe stem connector nut. Rotate the stem connectornut so that it moves up the valve stem two fullturns. Manually move the valve plug so that thestem connector nut again contacts the actuatorstem. Be sure the flats on the actuator stem areperpendicular to the scale indicator web on theyoke (key 6). Adjust the stem connector nut, asnecessary, so that the flats on the nut and the ac-tuator stem are parallel. Clamp the actuator stem
and stem connector nut together with the stem con-nector (key 12) and the two cap screws and hexnuts (keys 14 and 23). Run the hex nut (key 15) upthe valve stem and tighten it against the stem con-nector nut (key 13).
6. Cycle the actuator several times to check forproper operation.
Note
In the following step, make sure the cor-rect travel indicator scale (key 19) is
used per the Parts Listfor the desiredtravel.
7. If necessary, remove the travel indicator scalescrews (key 18) and reposition the travel indicatorscale (key 19) so that the scale arrow points in thesame direction as the valve plug moves when open-ing. Close the valve. Adjust the scale up or down sothat the stem connector (key 12) indicator lines up withthe closed mark on the scale. Secure the scale withthe scale screws.
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Handwheel Adjustment
Key numbers referenced in the following steps areshown in figure 3 for the Type 585C actuator and infigure 5 for the Type 585CR actuator.
The handwheel assembly on a Type 585C or 585CR
actuator may be used as an adjustable travel stop tolimit full upward or downward travel of the actuatorstem (key 10), or as a manual actuator to fully strokethe valve. When the neutral indicator (key 42) is in theneutral position, travel is not restricted. With clockwisehandwheel (key 47) rotation, the operating nut (key46) is screwed downward, forcing the actuator stem(key 10) down. With counterclockwise rotation, theoperating nut is screwed upward against the hand-wheel stem washer (key 45), pulling the actuator stemup.
Note
When using an actuator with handwheelto stroke the valve plug or position thetravel stop, be sure the bypass valve(key 66) is open.
Maintenance
Actuator parts are subject to normal wear and must beinspected and replaced as necessary. The frequencyof inspection and replacement depends on the severityof service conditions. This section provides two sepa-rate procedures, one on Replacing Handwheel Hous-ing O-Ring or Thrust Bearings, and the other on Re-placing Seals, Changing Action, or Changing BiasSpring(s).
For an actuator with handwheel, a grease fitting (key50, figure 3 or 5) is provided on the bearing cover (key38, figure 3 or 5) for periodic bearing lubrication withLubriplate MAG-1 lubricant (key 24, figure 3 or 5) orequivalent.
WARNING
Avoid personal injury from sudden re-lease of process pressure. Before per-forming any maintenance operations:
Disconnect any operating lines pro-viding air pressure, electric power, or acontrol signal to the actuator. Be surethe actuator cannot suddenly open orclose the valve.
Use bypass valves or completelyshut off the process to isolate the valvefrom process pressure. Relieve processpressure on both sides of the valve.Drain the process media from bothsides of the valve.
Vent the power actuator loadingpressure and release all bias springcompression force by slowly unscrew-ing the cylinder cover bolting in a criss-cross pattern.
Use lock-out procedures to be surethat the above measures stay in effectwhile you work on the equipment.
Replacing Handwheel Housing O-Ringor Thrust Bearings
Perform this procedure if inspecting or replacing thehandwheel housing O-ring, handwheel thrust bearings,or any other handwheel parts located above the cylin-der (key 1, figure 3 or 5). Inspection or replacement ofthe cylinder O-ring, handwheel stem, or handwheelstem jam nut (key 57, 56, or 52, figure 3 or 5) are cov-ered in the Replacing Seals, Changing Action, orChanging Bias Spring(s)procedure. Key numbers arereferenced in figure 3 for a Type 585C actuator and infigure 5 for a Type 585CR actuator.
Note
This procedure may be performed with-out removing the cylinder, or yoke (key
1 or 6) from the bonnet of the valve.Isolate the control valve from the line pressure, re-lease pressure from both sides of the valve body, anddrain the process media from both sides of the valve.Shut-off all pressure lines to the power actuator, andrelease all pressure from the actuator. Use lock-outprocedures to be sure that the above measures stay ineffect while you work on the equipment.
1. Shut off the bypass valve (key 66). Remove thecylinder pressure piping and bypass tubing from thebypass tees (key 68) on the cylinder (key 1).
2. Turn the handwheel (key 47) in the appropriatedirection so the neutral indicator (key 42) is behind the
NEUTRAL position of the neutral indicator plate(key 37).
3. Unscrew and remove the neutral indicator cover(key 35).
4. Remove the handwheel retaining ring, handwheel,and locking key (keys 48, 47, and 65).
5. Loosen the bearing cover set screws (key 51), andunscrew and carefully remove the bearing cover(key 38).
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6. Remove the handwheel housing O-ring (key 58)and the top set of thrust bearings (key 39).
7. Since both the handwheel housing (key 36) and theoperating nut (key 46) have left-hand threads, unscrewthe handwheel housing by turning it clockwise off theoperating nut. Carefully remove the detent ball and
detent spring (keys 64 and 63), and remove the bot-tom set of thrust bearings (key 39).
8. Unscrew the handwheel stem cap screw (key 60)while using a 7/8-inch wrench to hold the handwheelstem (key 56). Remove the handwheel stem washer(key 45), and the operating nut (key 46) with attachedneutral indicator (key 42).
9. Unscrew the neutral indicator (key 42) counter-clockwise if necessary to separate it from the operat-ing nut (key 46).
10. If the neutral indicator (key 42) was removed, coatits threads with Loctite No. 242 sealant (key 70) or
equivalent and screw it into the operating nut (key 46).Position the 90-degree elbow of the neutral indicatorso that it will not interfere with the neutral indicatorcover (key 35) when assembled.
11. If necessary, replace the anti-rotation key (key40), by pushing the key outward from the cylinder (key1) then install the replacement key (key 40) into theanti-rotation hole of the cylinder.
12. Lubricate the inside surface of the operating nut(key 46) with Lubriplate MAG-1 lubricant (key 24) orequivalent. Install the operating nut with the attachedneutral indicator, and the handwheel stem washer (key45), onto the handwheel stem (key 56) and secure
with the handwheel stem cap screw (key 60). Tightenthe cap screw to 125 lbfft (169 Nm).
13. Place the bottom set of thrust bearings (key 39)on top of the cylinder (key 1). Insert the detent springand ball (keys 63 and 64) into the cylinder.
14. Install the handwheel housing O-ring (key 58) onthe handwheel housing (key 36). Since both the hand-wheel housing and the operating nut (key 46) haveleft-hand threads, thread the handwheel housing ontothe operating nut by turning it counterclockwise overthe operating nut until the handwheel housing is snugagainst the bottom set of thrust bearings (key 39).
15. Install the top set of thrust bearings (key 39) overthe handwheel housing (key 36).
16. Carefully slide the bearing cover (key 38) over thehandwheel housing (key 36) and thread the bearingcover hand tight onto the cylinder (key 1). Secure bytightening the set screws (key 51) to 13 lbfft (18Nm).
17. Install the locking key, handwheel, and handwheelretaining ring (keys 65, 47, and 48).
18. Screw the neutral indicator cover (key 35) handtight only onto the handwheel housing (key 36).
19. Install the bypass tubing with attached bypassvalve (key 66) into the bypass tees (key 68) in the cyl-inder (key 1).
Replacing Seals, Changing Action, orChanging Bias Spring(s)
Key numbers are referenced in figures 2 and 3 for aType 585C actuator and in figures 4 and 5 for a Type585CR actuator.
Isolate the control valve from the line pressure, re-lease pressure from both sides of the valve body, anddrain the process media from both sides of the valve.Shut-off all pressure lines to the power actuator, re-lease all pressure from the actuator, and release all
bias spring compression force by slowly unscrewingthe cylinder cover bolting in a crisscross pattern. Uselock-out procedures to be sure that the above mea-sures stay in effect while you work on the equipment.
For Type 585C actuators with push-only handwheel,be sure the handjack stem is backed out of the cylin-der as far as it will go to relieve any extra spring com-pression.
1. Remove the cylinder pressure piping. With a hand-wheel construction, perform steps 2. through 10. ofthe Replacing Handwheel Housing O-Ring or ThrustBearingsprocedure.
Note
In the following step, loosen each cylin-der-to-yoke cap screw a slight amountin turn in a crisscross pattern to keepthe cylinder square with the yoke whilerelieving spring precompression.
2. While carefully allowing bias spring precompressionto be slowly released, remove the cylinder-to-yoke capscrews and cylinder cover (keys 2 and 1).
3. Remove the cylinder (key 1). Set the cylinder on aprotective surface to prevent damage to the cylindersurfaces. With a handwheel construction, inspect thecylinder O-ring (key 57) and replace it if necessary,applying Lubriplate MAG-1 lubricant (key 24) or equiv-alent to the replacement O-ring.
4. Inspect the piston O-ring (key 8) and replace, ifnecessary. If the only further maintenance to be per-formed is replacement of the piston O-ring, skip tostep 11. of this procedure.
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Note
Type 585C actuators may be used withor without the bias springs. In the fol-lowing procedures, references are madeto the bias springs. If the bias springsare not used, disregard references to
them when performing the maintenanceprocedures.
5. Perform one of the following disassembly proce-dures (a, b, c, or d as appropriate):
a. For Type 585C actuators without handwheel(figure 2), remove the piston cap screw (key 4),piston (key 3), bias spring(s) (key 16 and/or key17), and travel stop spacer (key 5).
b. For Type 585C actuators with handwheel(figure 3), remove the handwheel stem (key 56)with attached piston stud (key 69), piston (key 3),bias spring(s) (key 16 and/or key 17), and travel
stop spacer (key 5).
c. For Type 585CR actuators without hand-wheel (figure 4), remove the bias spring(s) (key 16and/or key 17), piston cap screw (key 4), travelstop spacer (key 5) and piston (key 3).
d. For Type 585CR actuators with handwheel(figure 5), remove the bias spring(s) (key 16 and/orkey 17), the handwheel stem (key 56) with at-tached piston stud (key 69), travel stop spacer (key5), and piston (key 3).
e. For Type 585C actuators with push-only
handwheel (figure 6), remove the cotter pin andslotted nut (keys 73 and 72) and lift off the hand-wheel. Remove the jam nut (key 52). Remove thecap screws (key 60) and lift off the handwheelhousing (key 36). Back the handwheel stem (key56) out of the housing. Inspect the O-rings (keys 57and 58). Replace these parts as necessary.
6. If inspection or replacement of the actuator stemO-ring or bearing (key 9 or 11) is necessary, performsteps 7. through 9. . Otherwise skip to step 10. ,being sure to comply with the note preceding step10. .
7. Loosen the two cap screws in the stem connector
(key 14) and remove it. If the actuator is mounted on avalve, separate the actuator stem (key 10) from thevalve plug stem. Remove the actuator from the valve.
8. To inspect the actuator stem bearing (key 11), ac-tuator stem O-ring (key 9), or backup ring (key 25 size50 only) remove the actuator stem (key 10) from theyoke (key 6). Replace these parts if necessary. ApplyLubriplate MAG-1 lubricant (key 24) or equivalent tothe replacement O-ring or bearing and install it into theyoke.
9. Install the actuator stem through the yoke.
Note
Make certain the travel indicator scale(key 19) correctly matches the travel perthe Parts List.
10. To achieve the desired construction (either a di-rect-acting Type 585C actuator or a reverse-actingType 585CR actuator), perform one of the followingassembly procedures (a or b as appropriate):
a. For Type 585C actuators (figures 2 and 3),
center the inner bias spring, if used, (key 17 pertable 2 or 3) around the center boss in the yoke(key 6). If used per table 2 or 3, center the outerbias spring (key 16) around the inner bias spring.The outer bias spring should be within the outerboss in the yoke. Put the travel stop spacer and thepiston (keys 5 and 3) on the actuator stem. ApplyLubriplate MAG-1 lubricant (key 24) or equivalentto the threads of the piston cap screw or pistonstud (key 4 or 69). Insert the piston cap screw, orstud plus attached handwheel stem (key 56),through both the piston and travel stop spacer andinto the actuator stem. Use a wrench on the flats ofthe actuator stem to prevent it from turning. Tighten
the piston cap screw, or stud plus attached hand-wheel stem, to 75 lbfft (102 Nm) for size 25 ac-tuators or 100 lbfft (136 Nm) for size 50 actua-tors.
b. For Type 585C actuators with push-onlyhandwheel (figure 6), lubricate the O-rings andhandjack stem threads with Lubriplate MAG-1 orequivalent. Install the O-ring (key 57) and handjackstem (key 56), turning the screw into the housingas far as possible. Place the O-ring (key 58) overthe housing and insert into the cylinder (key 1). Re-place the cap screws (key 60) and tighten to 30lbfft (41 Nm) on size 25 actuators or 60 lbfft (81
Nm) on size 50 actuators. Replace the jam nut(key 52), handwheel (key 47), and slotted nut andcotter pin (keys 72 and 73).
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c. For Type 585CR actuators (figures 4 and 5),put the piston (key 3) on the actuator stem and thetravel stop spacer (key 5) on the piston. Apply Lu-briplate MAG-1 lubricant (key 24) or equivalent tothe threads of the piston cap screw or piston stud(key 4 or 69). Insert the piston cap screw, or studplus attached handwheel stem (key 56), through
both the travel stop spacer and piston and into theactuator stem. Use a wrench on the flats of the ac-tuator stem to prevent it from turning. Tighten thepiston cap screw, or stud plus attached handwheelstem, to 75 lbfft (102 Nm) for size 25 actuators or100 lbfft (136 Nm) for size 50 actuators. Centerthe inner bias spring, if used, (key 17 per table 2 or3) around the travel stop spacer. If used per table 2or 3, center the outer bias spring (key 16) aroundthe inner bias spring. The outer bias spring shouldbe within the outer boss on the piston.
11. Install the piston O-ring (key 8) if it was removed
from the piston, and the yoke O-ring (key 7, figure 2 or4) if it was removed from the yoke (key 6). Apply Lu-briplate MAG-1 lubricant (key 24) or equivalent to thewall of the cylinder (key 1) and carefully slide the cylin-der over the piston O-ring. Be sure the cylinder pres-sure connection is aligned with the yoke pressure con-nection. Square the cylinder in place over the yokeO-ring.
12. Line up the cylinder holes with the yoke holesmaking sure for a handwheel construction that theanti-rotation groove in the handwheel stem (key 56) isaligned with the hole in the cylinder for the anti-rotation
key (key 40).
Note
When placing the cylinder on the yokeand tightening the cylinder-to-yokebolts, be sure to keep the cylindersquare and aligned with the top of theyoke.
13. Lubricate the cylinder-to-yoke bolts (key 2) withLubriplate MAG-1 lubricant (key 24) or equivalent. In acriss cross pattern, alternately tighten each cylinder-to-yoke bolt a slight amount so that the cylinder stayssquare with the yoke. When all cylinder surfaces are incontact with the yoke, tighten each cylinder-to-yokebolt to 55 lbfft (70 Nm) for a size 25 or 70 lbfft (95Nm) for a size 50.
14. With a handwheel construction, performsteps 11. through 19. of the Replacing HandwheelHousing O-ring or Thrust Bearingsprocedure.
15. If the actuator will be mounted on a valve, performthe appropriate actuator mounting procedure. Other-
wise, place the stem connector nut (key 13), stemconnector (key 12), two cap screws (key 14), two hexnuts (key 23) and hex nut (key 15) in a parts bag andattach the bag to the actuator yoke.
Parts Ordering
When corresponding with your Fisher Controls salesoffice or sales representative about this equipment,refer to the serial number found on the actuator name-plate (key 21, figure 2 or 4). Also, specify the complete11-character part number from the following Parts List
when ordering replacement parts.
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Parts Kits
Actuator Size 25 50
O-ring (Contains keys 7, 8, and 9)Backup ring (Key 25) for size 50 actuators only
R585CX00252 R585CX00502
Parts List
Common Actuator Parts (figure 2 or 4)
Key Description Part Number
1 Cylinder
For actuators without handjack
For size 25 44B6284X012
For size 50 44B6295X012
2 Cylinder-to-Yoke Bolts (4 reqd)
For size 25
zinc plated steel 1A782024052
stainless steel 1A7820X0052
For size 50
zinc plated steel 1A361624052
stainless steel 1A3616X0042
3 Piston, aluminumFor size 25 24B6286X012
For size 50 34B6297X012
4 Cap Screw, for actuators without handwheel
For size 25
9/16 inch (14 mm) stem travel 13B9257X012
3/4 to 7/8 inch (19 to 22 mm) stem travel 13B9258X012
1-1/8 inch (29 mm) stem travel G1242228982
For size 50
3/4 and 7/8 inch (19 and 22 mm) stem travel 14B5621X012
1-1/8 inch (29 mm) stem travel 14B5620X012
1-1/2 inch (38 mm) stem travel 13B9255X012
2-inch (51 mm) stem travel 13B9256X012
5 Travel Stop Spacer, zn-pl steel
For size 25
w/9/16 inch (14 mm) stem travel 24B6290X012
w/3/4-inch (19 mm) stem travel 24B6289X012w/7/8-inch (22 mm) stem travel 24B6288X012
w/1-1/8 inch (29 mm) stem travel 24B6287X012
For size 50
w/3/4-inch (19 mm) stem travel 34B6302X012
w/7/8-inch (22 mm) stem travel 34B6301X012
w/1-1/8 inch (29 mm) stem travel 34B6300X012
w/1-1/2 inch (38 mm) stem travel 34B6299X012
w/2-inch (51 mm) stem travel 34B6298X012
6 Yoke, ductile iron
w/o or w/Push only handjack
For size 25
2-1/8 inch (54 mm) yoke boss 44B8582X012
2-13/16 inch (71 mm) yoke boss 44B8583X012
For size 50
2-13/16 inch (71 mm) yoke boss 44B8261X012
3-9/16 inch (90 mm) yoke boss 44B8262X012w/push-pull handjack
For size 25
2-1/8 inch (54 mm) yoke boss 44B8582X012
2-13/16 inch (71 mm) yoke boss 44B8583X012
For size 50
2-13/16 inch (71 mm) yoke boss 44B8594X012
3-9/16 inch (90 mm) yoke boss 44B8596X012
Key Description Part Number
7* Yoke O-ring
For size 25
Nitrile 13A5599X062
Viton (for high temperature) 13A5599X022
For size 50
Nitrile 1L315906992
Viton (for high temperature) 1L3159X0012
8* Piston O-ring
For size 25
Nitrile 19A7098X022
Viton (for high temperature) 19A7098X032
For size 50
Nitrile 1F1727X0032
Viton (for high temperature) 1F1727X0012
9* Actuator Stem O-ring
For size 25
Nitrile 1H8498X0022
Viton (for high temperature) 1H8498X0032
For size 50
Nitrile 1E736906992
9* Actuator Stem O-ring For Size 50 (continued)
Viton (for high temperature) 1D2620X0032
10 Actuator Stem, chrome plated steel
For size 25 24B6307X012
For size 50 34B6312X012
11* Piston Stem Bearing, nylon
For size 25 18A0616X012
For size 50 24B6313X012
12 Stem Connector, zn pl steel (2 reqd)
For size 25 34B6308X012
For size 50 34B6314X012
13 Stem Connector Nut
For size 252-1/8 inch (54 mm) yoke boss 14B6309X012
2-13/16 inch (71 mm) yoke boss 14B6310X012
For size 50
2-13/16 inch (71 mm) yoke boss 24B6315X012
3-9/16 inch (90 mm) yoke boss 24B6316X012
14 Cap Screw (2 reqd)
For size 25
Steel 1C870224052
Stainless steel 1C8702X0012
For size 50
Steel 1B989624052
Stainless steel 1B9896X0012
15 Hex Nut
Steel
For size 25
2-1/8 inch yoke boss 1A3465241222-13/16 inch yoke boss 1A413224122
For size 50
2-13/16 inch yoke boss 1A413224122
3-9/16 inch yoke boss 1A375424122
Stainless steel
For size 25
2-1/8 inch yoke boss 1A346535032
2-13/16 inch yoke boss 1A413235032
For size 50
2-13/16 inch yoke boss 1A413235032
3-9/16 inch yoke boss 1A375435072
*Recommended spare parts
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Types 585C and 585CR
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Figure 2. Type 585C Size 25 and 50 Actuators
APPLY LUBNOTE:KEY NUMBERS 22 AND 71 NOT SHOWN44B6335-C/ DOC
A
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Keys 16 and 17, Outer and Inner Bias Springs
SIZE 25 ACTUATOR SIZE 50 ACTUATOR
SPRING200 lb/in
spring rateGold
400 lb/inspring rateLight Green
500 lb/inspring rate
White
700 lb/inspring rate
Gold &White
900 lb/inspring rateLight Green
& White
330 lb/inspring rate
Pink
600 lb/inspring rateLight Blue
930 lb/inspring rate
Pink & LightBlue
1550 lb/inspring rate
Green
1880 lb/inspring rate
Pink &Green
key 16 Not used Not used 13B9259X012 13B9259X012 13B9259X012 Not used 14B7136X012 14B7136X012 14B7137X012 14B7137X012
key 17 13B9260X012 13B9261X012 Not used 13B9260X012 13B9261X012 18A0621X012 Not used 18A0621X012 Not used 18A0621X012
Figure 3. Type 585C Size 25 and 50 Actuators Handwheel Assembly
44B6330-B APPLY LUB
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Types 585C and 585CR
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Figure 4. Type 585CR Size 25 and 50 Actuators
APPLY LUBNOTE:KEY NUMBERS 22 AND 71 NOT SHOWN44B6319-C
A
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Figure 6. Type 585C Size 25 and 50 Actuators Handwheel AssemblyDirect Acting
34B8587-B APPLY LUB
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For information, contact Fisher Controls:Marshalltown, Iowa 50158 USACernay 68700 FranceSao Paulo 05424 BrazilSingapore 128461
Fisher Controls International, Inc. 1994, 1999; All Rights Reserved
Fisher, Fisher-Rosemount, and Managing The Process Better are marks owned by Fisher Controls International, Inc. or Fisher-Rosemount Systems, Inc.All other marks are the property of their respective owners.